Merge tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:

   - Wait for device readiness after reset by polling Vendor ID and
     looking for Configuration RRS instead of polling the Command
     register and looking for non-error completions, to avoid hardware
     retries done for RRS on non-Vendor ID reads (Bjorn Helgaas)

   - Rename CRS Completion Status to RRS ('Request Retry Status') to
     match PCIe r6.0 spec usage (Bjorn Helgaas)

   - Clear LBMS bit after a manual link retrain so we don't try to
     retrain a link when there's no downstream device anymore (Maciej W.
     Rozycki)

   - Revert to the original link speed after retraining fails instead of
     leaving it restricted to 2.5GT/s, so a future device has a chance
     to use higher speeds (Maciej W. Rozycki)

   - Wait for each level of downstream bus, not just the first, to
     become accessible before restoring devices on that bus (Ilpo
     Järvinen)

   - Add ARCH_PCI_DEV_GROUPS so s390 can add its own attribute_groups
     without having to stomp on the core's pdev->dev.groups (Lukas
     Wunner)

  Driver binding:

   - Export pcim_request_region(), a managed counterpart of
     pci_request_region(), for use by drivers (Philipp Stanner)

   - Export pcim_iomap_region() and deprecate pcim_iomap_regions()
     (Philipp Stanner)

   - Request the PCI BAR used by xboxvideo (Philipp Stanner)

   - Request and map drm/ast BARs with pcim_iomap_region() (Philipp
     Stanner)

  MSI:

   - Add MSI_FLAG_NO_AFFINITY flag for devices that mux MSIs onto a
     single IRQ line and cannot set the affinity of each MSI to a
     specific CPU core (Marek Vasut)

   - Use MSI_FLAG_NO_AFFINITY and remove unnecessary .irq_set_affinity()
     implementations in aardvark, altera, brcmstb, dwc, mediatek-gen3,
     mediatek, mobiveil, plda, rcar, tegra, vmd, xilinx-nwl,
     xilinx-xdma, and xilinx drivers to avoid 'IRQ: set affinity failed'
     warnings (Marek Vasut)

  Power management:

   - Add pwrctl support for ATH11K inside the WCN6855 package (Konrad
     Dybcio)

  PCI device hotplug:

   - Remove unnecessary hpc_ops struct from shpchp (ngn)

   - Check for PCI_POSSIBLE_ERROR(), not 0xffffffff, in cpqphp
     (weiyufeng)

  Virtualization:

   - Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson)

   - Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS
     but does provide ACS-like features (Subramanian Ananthanarayanan)

  IOMMU:

   - Add function 0 DMA alias quirk for Glenfly Arise audio function,
     which uses the function 0 Requester ID (WangYuli)

  NPEM:

   - Add Native PCIe Enclosure Management (NPEM) support for sysfs
     control of NVMe RAID storage indicators (ok/fail/locate/
     rebuild/etc) (Mariusz Tkaczyk)

   - Add support for the ACPI _DSM PCIe SSD status LED management, which
     is functionally similar to NPEM but mediated by platform firmware
     (Mariusz Tkaczyk)

  Device trees:

   - Drop minItems and maxItems from ranges in PCI generic host binding
     since host bridges may have several MMIO and I/O port apertures
     (Frank Li)

   - Add kirin, rcar-gen2, uniphier DT binding top-level constraints for
     clocks (Krzysztof Kozlowski)

  Altera PCIe controller driver:

   - Convert altera DT bindings from text to YAML (Matthew Gerlach)

   - Replace TLP_REQ_ID() with macro PCI_DEVID(), which does the same
     thing and is what other drivers use (Jinjie Ruan)

  Broadcom STB PCIe controller driver:

   - Add DT binding maxItems for reset controllers (Jim Quinlan)

   - Use the 'bridge' reset method if described in the DT (Jim Quinlan)

   - Use the 'swinit' reset method if described in the DT (Jim Quinlan)

   - Add 'has_phy' so the existence of a 'rescal' reset controller
     doesn't imply software control of it (Jim Quinlan)

   - Add support for many inbound DMA windows (Jim Quinlan)

   - Rename SoC 'type' to 'soc_base' express the fact that SoCs come in
     families of multiple similar devices (Jim Quinlan)

   - Add Broadcom 7712 DT description and driver support (Jim Quinlan)

   - Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings for
     maintainability (Bjorn Helgaas)

  Freescale i.MX6 PCIe controller driver:

   - Add imx6q-pcie 'dbi2' and 'atu' reg-names for i.MX8M Endpoints
     (Richard Zhu)

   - Fix a code restructuring error that caused i.MX8MM and i.MX8MP
     Endpoints to fail to establish link (Richard Zhu)

   - Fix i.MX8MP Endpoint occasional failure to trigger MSI by enforcing
     outbound alignment requirement (Richard Zhu)

   - Call phy_power_off() in the .probe() error path (Frank Li)

   - Rename internal names from imx6_* to imx_* since i.MX7/8/9 are also
     supported (Frank Li)

   - Manage Refclk by using SoC-specific callbacks instead of switch
     statements (Frank Li)

   - Manage core reset by using SoC-specific callbacks instead of switch
     statements (Frank Li)

   - Expand comments for erratum ERR010728 workaround (Frank Li)

   - Use generic PHY APIs to configure mode, speed, and submode, which
     is harmless for devices that implement their own internal PHY
     management and don't set the generic imx_pcie->phy (Frank Li)

   - Add i.MX8Q (i.MX8QM, i.MX8QXP, and i.MX8DXL) DT binding and driver
     Root Complex support (Richard Zhu)

  Freescale Layerscape PCIe controller driver:

   - Replace layerscape-pcie DT binding compatible fsl,lx2160a-pcie with
     fsl,lx2160ar2-pcie (Frank Li)

   - Add layerscape-pcie DT binding deprecated 'num-viewport' property
     to address a DT checker warning (Frank Li)

   - Change layerscape-pcie DT binding 'fsl,pcie-scfg' to phandle-array
     (Frank Li)

  Loongson PCIe controller driver:

   - Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets
     (Huacai Chen)

  Marvell Aardvark PCIe controller driver:

   - Fix issue with emulating Configuration RRS for two-byte reads of
     Vendor ID; previously it only worked for four-byte reads (Bjorn
     Helgaas)

  MediaTek PCIe Gen3 controller driver:

   - Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC
     types (Lorenzo Bianconi)

   - Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi)

   - Add DT and driver support for Airoha EN7581 PCIe controller
     (Lorenzo Bianconi)

  Qualcomm PCIe controller driver:

   - Update qcom,pcie-sc7280 DT binding with eight interrupts (Rayyan
     Ansari)

   - Add back DT 'vddpe-3v3-supply', which was incorrectly removed
     earlier (Johan Hovold)

   - Drop endpoint redundant masking of global IRQ events (Manivannan
     Sadhasivam)

   - Clarify unknown global IRQ message and only log it once to avoid a
     flood (Manivannan Sadhasivam)

   - Add 'linux,pci-domain' property to endpoint DT binding (Manivannan
     Sadhasivam)

   - Assign PCI domain number for endpoint controllers (Manivannan
     Sadhasivam)

   - Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for
     endpoint controller (Manivannan Sadhasivam)

   - Add global SPI interrupt for PCIe link events to DT binding
     (Manivannan Sadhasivam)

   - Add global RC interrupt handler to handle 'Link up' events and
     automatically enumerate hot-added devices (Manivannan Sadhasivam)

   - Avoid mirroring of DBI and iATU register space so it doesn't
     overlap BAR MMIO space (Prudhvi Yarlagadda)

   - Enable controller resources like PHY only after PERST# is
     deasserted to partially avoid the problem that the endpoint SoC
     crashes when accessing things when Refclk is absent (Manivannan
     Sadhasivam)

   - Add 16.0 GT/s equalization and RX lane margining settings (Shashank
     Babu Chinta Venkata)

   - Pass domain number to pci_bus_release_domain_nr() explicitly to
     avoid a NULL pointer dereference (Manivannan Sadhasivam)

  Renesas R-Car PCIe controller driver:

   - Make the read-only const array 'check_addr' static (Colin Ian King)

   - Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding
     (Yoshihiro Shimoda)

  TI DRA7xx PCIe controller driver:

   - Request IRQF_ONESHOT for 'dra7xx-pcie-main' IRQ since the primary
     handler is NULL (Siddharth Vadapalli)

   - Handle IRQ request errors during root port and endpoint probe
     (Siddharth Vadapalli)

  TI J721E PCIe driver:

   - Add DT 'ti,syscon-acspcie-proxy-ctrl' and driver support to enable
     the ACSPCIE module to drive Refclk for the Endpoint (Siddharth
     Vadapalli)

   - Extract the cadence link setup from cdns_pcie_host_setup() so link
     setup can be done separately during resume (Thomas Richard)

   - Add T_PERST_CLK_US definition for the mandatory delay between
     Refclk becoming stable and PERST# being deasserted (Thomas Richard)

   - Add j721e suspend and resume support (Théo Lebrun)

  TI Keystone PCIe controller driver:

   - Fix NULL pointer checking when applying MRRS limitation quirk for
     AM65x SR 1.0 Errata #i2037 (Dan Carpenter)

  Xilinx NWL PCIe controller driver:

   - Fix off-by-one error in INTx IRQ handler that caused INTx
     interrupts to be lost or delivered as the wrong interrupt (Sean
     Anderson)

   - Rate-limit misc interrupt messages (Sean Anderson)

   - Turn off the clock on probe failure and device removal (Sean
     Anderson)

   - Add DT binding and driver support for enabling/disabling PHYs (Sean
     Anderson)

   - Add PCIe phy bindings for the ZCU102 (Sean Anderson)

  Xilinx XDMA PCIe controller driver:

   - Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT
     binding and xilinx-dma-pl driver (Thippeswamy Havalige)

  Miscellaneous:

   - Fix buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina)

   - Fix minor kerneldoc issues and typos (Bjorn Helgaas)

   - Use PCI_DEVID() macro in aer_inject() instead of open-coding it
     (Jinjie Ruan)

   - Check pcie_find_root_port() return in x86 fixups to avoid NULL
     pointer dereferences (Samasth Norway Ananda)

   - Make pci_bus_type constant (Kunwu Chan)

   - Remove unused declarations of __pci_pme_wakeup() and
     pci_vpd_release() (Yue Haibing)

   - Remove any leftover .*.cmd files with make clean (zhang jiao)

   - Remove unused BILLION macro (zhang jiao)"

* tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (132 commits)
  PCI: Fix typos
  dt-bindings: PCI: qcom: Allow 'vddpe-3v3-supply' again
  tools: PCI: Remove unused BILLION macro
  tools: PCI: Remove .*.cmd files with make clean
  PCI: Pass domain number to pci_bus_release_domain_nr() explicitly
  PCI: dra7xx: Fix error handling when IRQ request fails in probe
  PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ
  PCI: qcom: Add RX lane margining settings for 16.0 GT/s
  PCI: qcom: Add equalization settings for 16.0 GT/s
  PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed
  PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed'
  PCI: qcom-ep: Enable controller resources like PHY only after refclk is available
  PCI: Mark Creative Labs EMU20k2 INTx masking as broken
  dt-bindings: PCI: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint
  dt-bindings: PCI: altera: msi: Convert to YAML
  PCI: imx6: Add i.MX8Q PCIe Root Complex (RC) support
  PCI: Rename CRS Completion Status to RRS
  PCI: aardvark: Correct Configuration RRS checking
  PCI: Wait for device readiness with Configuration RRS
  PCI: brcmstb: Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings
  ...

68 files changed, 2756 insertions, 1164 deletions

diff --git a/drivers/Makefile b/drivers/Makefile
index fe9ceb0d2288..45d1c3e630f7 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -17,6 +17,9 @@ obj-$(CONFIG_PINCTRL)		+= pinctrl/
 obj-$(CONFIG_GPIOLIB)		+= gpio/
 obj-y				+= pwm/
 
+# LEDs must come before PCI, it is needed by NPEM driver
+obj-y				+= leds/
+
 obj-y				+= pci/
 
 obj-$(CONFIG_PARISC)		+= parisc/
@@ -130,7 +133,6 @@ obj-$(CONFIG_CPU_IDLE)		+= cpuidle/
 obj-y				+= mmc/
 obj-y				+= ufs/
 obj-$(CONFIG_MEMSTICK)		+= memstick/
-obj-y				+= leds/
 obj-$(CONFIG_INFINIBAND)	+= infiniband/
 obj-y				+= firmware/
 obj-$(CONFIG_CRYPTO)		+= crypto/
diff --git a/drivers/acpi/pci_mcfg.c b/drivers/acpi/pci_mcfg.c
index 860014b89b8e..58e10a980114 100644
--- a/drivers/acpi/pci_mcfg.c
+++ b/drivers/acpi/pci_mcfg.c
@@ -181,6 +181,18 @@ static struct mcfg_fixup mcfg_quirks[] = {
 	LOONGSON_ECAM_MCFG("LOONGSON", 0),
 	LOONGSON_ECAM_MCFG("\0", 1),
 	LOONGSON_ECAM_MCFG("LOONGSON", 1),
+	LOONGSON_ECAM_MCFG("\0", 2),
+	LOONGSON_ECAM_MCFG("LOONGSON", 2),
+	LOONGSON_ECAM_MCFG("\0", 3),
+	LOONGSON_ECAM_MCFG("LOONGSON", 3),
+	LOONGSON_ECAM_MCFG("\0", 4),
+	LOONGSON_ECAM_MCFG("LOONGSON", 4),
+	LOONGSON_ECAM_MCFG("\0", 5),
+	LOONGSON_ECAM_MCFG("LOONGSON", 5),
+	LOONGSON_ECAM_MCFG("\0", 6),
+	LOONGSON_ECAM_MCFG("LOONGSON", 6),
+	LOONGSON_ECAM_MCFG("\0", 7),
+	LOONGSON_ECAM_MCFG("LOONGSON", 7),
 #endif /* LOONGARCH */
 };
 
diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c
index ed3be52ab63d..8540052d37c5 100644
--- a/drivers/bcma/driver_pci_host.c
+++ b/drivers/bcma/driver_pci_host.c
@@ -334,7 +334,7 @@ static u8 bcma_find_pci_capability(struct bcma_drv_pci *pc, unsigned int dev,
 }
 
 /* If the root port is capable of returning Config Request
- * Retry Status (CRS) Completion Status to software then
+ * Retry Status (RRS) Completion Status to software then
  * enable the feature.
  */
 static void bcma_core_pci_enable_crs(struct bcma_drv_pci *pc)
@@ -348,10 +348,10 @@ static void bcma_core_pci_enable_crs(struct bcma_drv_pci *pc)
 					   NULL);
 	root_cap = cap_ptr + PCI_EXP_RTCAP;
 	bcma_extpci_read_config(pc, 0, 0, root_cap, &val16, sizeof(u16));
-	if (val16 & BCMA_CORE_PCI_RC_CRS_VISIBILITY) {
-		/* Enable CRS software visibility */
+	if (val16 & BCMA_CORE_PCI_RC_RRS_VISIBILITY) {
+		/* Enable Configuration RRS Software Visibility */
 		root_ctrl = cap_ptr + PCI_EXP_RTCTL;
-		val16 = PCI_EXP_RTCTL_CRSSVE;
+		val16 = PCI_EXP_RTCTL_RRS_SVE;
 		bcma_extpci_read_config(pc, 0, 0, root_ctrl, &val16,
 					sizeof(u16));
 
@@ -360,7 +360,7 @@ static void bcma_core_pci_enable_crs(struct bcma_drv_pci *pc)
 		 * 100 ms wait time from the end of Reset. If the device is
 		 * not done with its internal initialization, it must at
 		 * least return a completion TLP, with a completion status
-		 * of "Configuration Request Retry Status (CRS)". The root
+		 * of "Configuration Request Retry Status (RRS)". The root
 		 * complex must complete the request to the host by returning
 		 * a read-data value of 0001h for the Vendor ID field and
 		 * all 1s for any additional bytes included in the request.
diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index 225817087b4d..3a908bb015fe 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -287,9 +287,9 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret)
 		return ret;
 
-	regs = pcim_iomap(pdev, 1, 0);
-	if (!regs)
-		return -EIO;
+	regs = pcim_iomap_region(pdev, 1, "ast");
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
 
 	if (pdev->revision >= 0x40) {
 		/*
@@ -311,9 +311,9 @@ static int ast_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 		if (len < AST_IO_MM_LENGTH)
 			return -EIO;
-		ioregs = pcim_iomap(pdev, 2, 0);
-		if (!ioregs)
-			return -EIO;
+		ioregs = pcim_iomap_region(pdev, 2, "ast");
+		if (IS_ERR(ioregs))
+			return PTR_ERR(ioregs);
 	} else {
 		/*
 		 * Anything else is best effort.
diff --git a/drivers/gpu/drm/vboxvideo/vbox_main.c b/drivers/gpu/drm/vboxvideo/vbox_main.c
index d4ade9325401..7f686a0190e6 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_main.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_main.c
@@ -114,6 +114,10 @@ int vbox_hw_init(struct vbox_private *vbox)
 
 	DRM_INFO("VRAM %08x\n", vbox->full_vram_size);
 
+	ret = pcim_request_region(pdev, 0, "vboxvideo");
+	if (ret)
+		return ret;
+
 	/* Map guest-heap at end of vram */
 	vbox->guest_heap = pcim_iomap_range(pdev, 0,
 			GUEST_HEAP_OFFSET(vbox), GUEST_HEAP_SIZE);
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index aa4d1833f442..0d94e4a967d8 100644
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -143,6 +143,15 @@ config PCI_IOV
 
 	  If unsure, say N.
 
+config PCI_NPEM
+	bool "Native PCIe Enclosure Management"
+	depends on LEDS_CLASS=y
+	help
+	  Support for Native PCIe Enclosure Management. It allows managing LED
+	  indications in storage enclosures. Enclosure must support following
+	  indications: OK, Locate, Fail, Rebuild, other indications are
+	  optional.
+
 config PCI_PRI
 	bool "PCI PRI support"
 	select PCI_ATS
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 8ddad57934a6..374c5c06d92f 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_XEN_PCIDEV_FRONTEND) += xen-pcifront.o
 obj-$(CONFIG_VGA_ARB)		+= vgaarb.o
 obj-$(CONFIG_PCI_DOE)		+= doe.o
 obj-$(CONFIG_PCI_DYNAMIC_OF_NODES) += of_property.o
+obj-$(CONFIG_PCI_NPEM)		+= npem.o
 
 # Endpoint library must be initialized before its users
 obj-$(CONFIG_PCI_ENDPOINT)	+= endpoint/
diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c
index 87fa03540b8a..6afff1f1b143 100644
--- a/drivers/pci/ats.c
+++ b/drivers/pci/ats.c
@@ -488,8 +488,8 @@ void pci_restore_pasid_state(struct pci_dev *pdev)
  * pci_pasid_features - Check which PASID features are supported
  * @pdev: PCI device structure
  *
- * Returns a negative value when no PASI capability is present.
- * Otherwise is returns a bitmask with supported features. Current
+ * Return a negative value when no PASID capability is present.
+ * Otherwise return a bitmask with supported features. Current
  * features reported are:
  * PCI_PASID_CAP_EXEC - Execute permission supported
  * PCI_PASID_CAP_PRIV - Privileged mode supported
diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig
index 4d2c188f5835..9800b7681054 100644
--- a/drivers/pci/controller/Kconfig
+++ b/drivers/pci/controller/Kconfig
@@ -196,7 +196,7 @@ config PCIE_MEDIATEK
 
 config PCIE_MEDIATEK_GEN3
 	tristate "MediaTek Gen3 PCIe controller"
-	depends on ARCH_MEDIATEK || COMPILE_TEST
+	depends on ARCH_AIROHA || ARCH_MEDIATEK || COMPILE_TEST
 	depends on PCI_MSI
 	help
 	  Adds support for PCIe Gen3 MAC controller for MediaTek SoCs.
diff --git a/drivers/pci/controller/cadence/Kconfig b/drivers/pci/controller/cadence/Kconfig
index 1d5a70c9055e..8a0044bb3989 100644
--- a/drivers/pci/controller/cadence/Kconfig
+++ b/drivers/pci/controller/cadence/Kconfig
@@ -38,7 +38,7 @@ config PCIE_CADENCE_PLAT_EP
 	select PCIE_CADENCE_EP
 	select PCIE_CADENCE_PLAT
 	help
-	  Say Y here if you want to support the Cadence PCIe  platform controller in
+	  Say Y here if you want to support the Cadence PCIe platform controller in
 	  endpoint mode. This PCIe controller may be embedded into many
 	  different vendors SoCs.
 
diff --git a/drivers/pci/controller/cadence/pci-j721e.c b/drivers/pci/controller/cadence/pci-j721e.c
index 85718246016b..284f2e0e4d26 100644
--- a/drivers/pci/controller/cadence/pci-j721e.c
+++ b/drivers/pci/controller/cadence/pci-j721e.c
@@ -7,6 +7,8 @@
  */
 
 #include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/container_of.h>
 #include <linux/delay.h>
 #include <linux/gpio/consumer.h>
 #include <linux/io.h>
@@ -22,6 +24,8 @@
 #include "../../pci.h"
 #include "pcie-cadence.h"
 
+#define cdns_pcie_to_rc(p) container_of(p, struct cdns_pcie_rc, pcie)
+
 #define ENABLE_REG_SYS_2	0x108
 #define STATUS_REG_SYS_2	0x508
 #define STATUS_CLR_REG_SYS_2	0x708
@@ -44,6 +48,7 @@ enum link_status {
 #define J721E_MODE_RC			BIT(7)
 #define LANE_COUNT(n)			((n) << 8)
 
+#define ACSPCIE_PAD_DISABLE_MASK	GENMASK(1, 0)
 #define GENERATION_SEL_MASK		GENMASK(1, 0)
 
 struct j721e_pcie {
@@ -52,6 +57,7 @@ struct j721e_pcie {
 	u32			mode;
 	u32			num_lanes;
 	u32			max_lanes;
+	struct gpio_desc	*reset_gpio;
 	void __iomem		*user_cfg_base;
 	void __iomem		*intd_cfg_base;
 	u32			linkdown_irq_regfield;
@@ -220,6 +226,36 @@ static int j721e_pcie_set_lane_count(struct j721e_pcie *pcie,
 	return ret;
 }
 
+static int j721e_enable_acspcie_refclk(struct j721e_pcie *pcie,
+				       struct regmap *syscon)
+{
+	struct device *dev = pcie->cdns_pcie->dev;
+	struct device_node *node = dev->of_node;
+	u32 mask = ACSPCIE_PAD_DISABLE_MASK;
+	struct of_phandle_args args;
+	u32 val;
+	int ret;
+
+	ret = of_parse_phandle_with_fixed_args(node,
+					       "ti,syscon-acspcie-proxy-ctrl",
+					       1, 0, &args);
+	if (ret) {
+		dev_err(dev,
+			"ti,syscon-acspcie-proxy-ctrl has invalid arguments\n");
+		return ret;
+	}
+
+	/* Clear PAD IO disable bits to enable refclk output */
+	val = ~(args.args[0]);
+	ret = regmap_update_bits(syscon, 0, mask, val);
+	if (ret) {
+		dev_err(dev, "failed to enable ACSPCIE refclk: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
 static int j721e_pcie_ctrl_init(struct j721e_pcie *pcie)
 {
 	struct device *dev = pcie->cdns_pcie->dev;
@@ -259,7 +295,13 @@ static int j721e_pcie_ctrl_init(struct j721e_pcie *pcie)
 		return ret;
 	}
 
-	return 0;
+	/* Enable ACSPCIE refclk output if the optional property exists */
+	syscon = syscon_regmap_lookup_by_phandle_optional(node,
+						"ti,syscon-acspcie-proxy-ctrl");
+	if (!syscon)
+		return 0;
+
+	return j721e_enable_acspcie_refclk(pcie, syscon);
 }
 
 static int cdns_ti_pcie_config_read(struct pci_bus *bus, unsigned int devfn,
@@ -482,20 +524,20 @@ static int j721e_pcie_probe(struct platform_device *pdev)
 	pm_runtime_enable(dev);
 	ret = pm_runtime_get_sync(dev);
 	if (ret < 0) {
-		dev_err(dev, "pm_runtime_get_sync failed\n");
+		dev_err_probe(dev, ret, "pm_runtime_get_sync failed\n");
 		goto err_get_sync;
 	}
 
 	ret = j721e_pcie_ctrl_init(pcie);
 	if (ret < 0) {
-		dev_err(dev, "pm_runtime_get_sync failed\n");
+		dev_err_probe(dev, ret, "pm_runtime_get_sync failed\n");
 		goto err_get_sync;
 	}
 
 	ret = devm_request_irq(dev, irq, j721e_pcie_link_irq_handler, 0,
 			       "j721e-pcie-link-down-irq", pcie);
 	if (ret < 0) {
-		dev_err(dev, "failed to request link state IRQ %d\n", irq);
+		dev_err_probe(dev, ret, "failed to request link state IRQ %d\n", irq);
 		goto err_get_sync;
 	}
 
@@ -505,42 +547,40 @@ static int j721e_pcie_probe(struct platform_device *pdev)
 	case PCI_MODE_RC:
 		gpiod = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
 		if (IS_ERR(gpiod)) {
-			ret = PTR_ERR(gpiod);
-			if (ret != -EPROBE_DEFER)
-				dev_err(dev, "Failed to get reset GPIO\n");
+			ret = dev_err_probe(dev, PTR_ERR(gpiod), "Failed to get reset GPIO\n");
 			goto err_get_sync;
 		}
+		pcie->reset_gpio = gpiod;
 
 		ret = cdns_pcie_init_phy(dev, cdns_pcie);
 		if (ret) {
-			dev_err(dev, "Failed to init phy\n");
+			dev_err_probe(dev, ret, "Failed to init phy\n");
 			goto err_get_sync;
 		}
 
 		clk = devm_clk_get_optional(dev, "pcie_refclk");
 		if (IS_ERR(clk)) {
-			ret = PTR_ERR(clk);
-			dev_err(dev, "failed to get pcie_refclk\n");
+			ret = dev_err_probe(dev, PTR_ERR(clk), "failed to get pcie_refclk\n");
 			goto err_pcie_setup;
 		}
 
 		ret = clk_prepare_enable(clk);
 		if (ret) {
-			dev_err(dev, "failed to enable pcie_refclk\n");
+			dev_err_probe(dev, ret, "failed to enable pcie_refclk\n");
 			goto err_pcie_setup;
 		}
 		pcie->refclk = clk;
 
 		/*
-		 * "Power Sequencing and Reset Signal Timings" table in
-		 * PCI EXPRESS CARD ELECTROMECHANICAL SPECIFICATION, REV. 3.0
-		 * indicates PERST# should be deasserted after minimum of 100us
-		 * once REFCLK is stable. The REFCLK to the connector in RC
-		 * mode is selected while enabling the PHY. So deassert PERST#
-		 * after 100 us.
+		 * The "Power Sequencing and Reset Signal Timings" table of the
+		 * PCI Express Card Electromechanical Specification, Revision
+		 * 5.1, Section 2.9.2, Symbol "T_PERST-CLK", indicates PERST#
+		 * should be deasserted after minimum of 100us once REFCLK is
+		 * stable. The REFCLK to the connector in RC mode is selected
+		 * while enabling the PHY. So deassert PERST# after 100 us.
 		 */
 		if (gpiod) {
-			usleep_range(100, 200);
+			fsleep(PCIE_T_PERST_CLK_US);
 			gpiod_set_value_cansleep(gpiod, 1);
 		}
 
@@ -554,7 +594,7 @@ static int j721e_pcie_probe(struct platform_device *pdev)
 	case PCI_MODE_EP:
 		ret = cdns_pcie_init_phy(dev, cdns_pcie);
 		if (ret) {
-			dev_err(dev, "Failed to init phy\n");
+			dev_err_probe(dev, ret, "Failed to init phy\n");
 			goto err_get_sync;
 		}
 
@@ -589,6 +629,87 @@ static void j721e_pcie_remove(struct platform_device *pdev)
 	pm_runtime_disable(dev);
 }
 
+static int j721e_pcie_suspend_noirq(struct device *dev)
+{
+	struct j721e_pcie *pcie = dev_get_drvdata(dev);
+
+	if (pcie->mode == PCI_MODE_RC) {
+		gpiod_set_value_cansleep(pcie->reset_gpio, 0);
+		clk_disable_unprepare(pcie->refclk);
+	}
+
+	cdns_pcie_disable_phy(pcie->cdns_pcie);
+
+	return 0;
+}
+
+static int j721e_pcie_resume_noirq(struct device *dev)
+{
+	struct j721e_pcie *pcie = dev_get_drvdata(dev);
+	struct cdns_pcie *cdns_pcie = pcie->cdns_pcie;
+	int ret;
+
+	ret = j721e_pcie_ctrl_init(pcie);
+	if (ret < 0)
+		return ret;
+
+	j721e_pcie_config_link_irq(pcie);
+
+	/*
+	 * This is not called explicitly in the probe, it is called by
+	 * cdns_pcie_init_phy().
+	 */
+	ret = cdns_pcie_enable_phy(pcie->cdns_pcie);
+	if (ret < 0)
+		return ret;
+
+	if (pcie->mode == PCI_MODE_RC) {
+		struct cdns_pcie_rc *rc = cdns_pcie_to_rc(cdns_pcie);
+
+		ret = clk_prepare_enable(pcie->refclk);
+		if (ret < 0)
+			return ret;
+
+		/*
+		 * The "Power Sequencing and Reset Signal Timings" table of the
+		 * PCI Express Card Electromechanical Specification, Revision
+		 * 5.1, Section 2.9.2, Symbol "T_PERST-CLK", indicates PERST#
+		 * should be deasserted after minimum of 100us once REFCLK is
+		 * stable. The REFCLK to the connector in RC mode is selected
+		 * while enabling the PHY. So deassert PERST# after 100 us.
+		 */
+		if (pcie->reset_gpio) {
+			fsleep(PCIE_T_PERST_CLK_US);
+			gpiod_set_value_cansleep(pcie->reset_gpio, 1);
+		}
+
+		ret = cdns_pcie_host_link_setup(rc);
+		if (ret < 0) {
+			clk_disable_unprepare(pcie->refclk);
+			return ret;
+		}
+
+		/*
+		 * Reset internal status of BARs to force reinitialization in
+		 * cdns_pcie_host_init().
+		 */
+		for (enum cdns_pcie_rp_bar bar = RP_BAR0; bar <= RP_NO_BAR; bar++)
+			rc->avail_ib_bar[bar] = true;
+
+		ret = cdns_pcie_host_init(rc);
+		if (ret) {
+			clk_disable_unprepare(pcie->refclk);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static DEFINE_NOIRQ_DEV_PM_OPS(j721e_pcie_pm_ops,
+			       j721e_pcie_suspend_noirq,
+			       j721e_pcie_resume_noirq);
+
 static struct platform_driver j721e_pcie_driver = {
 	.probe  = j721e_pcie_probe,
 	.remove_new = j721e_pcie_remove,
@@ -596,6 +717,7 @@ static struct platform_driver j721e_pcie_driver = {
 		.name	= "j721e-pcie",
 		.of_match_table = of_j721e_pcie_match,
 		.suppress_bind_attrs = true,
+		.pm	= pm_sleep_ptr(&j721e_pcie_pm_ops),
 	},
 };
 builtin_platform_driver(j721e_pcie_driver);
diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c
index 5b14f7ee3c79..8af95e9da7ce 100644
--- a/drivers/pci/controller/cadence/pcie-cadence-host.c
+++ b/drivers/pci/controller/cadence/pcie-cadence-host.c
@@ -485,8 +485,7 @@ static int cdns_pcie_host_init_address_translation(struct cdns_pcie_rc *rc)
 	return cdns_pcie_host_map_dma_ranges(rc);
 }
 
-static int cdns_pcie_host_init(struct device *dev,
-			       struct cdns_pcie_rc *rc)
+int cdns_pcie_host_init(struct cdns_pcie_rc *rc)
 {
 	int err;
 
@@ -497,6 +496,30 @@ static int cdns_pcie_host_init(struct device *dev,
 	return cdns_pcie_host_init_address_translation(rc);
 }
 
+int cdns_pcie_host_link_setup(struct cdns_pcie_rc *rc)
+{
+	struct cdns_pcie *pcie = &rc->pcie;
+	struct device *dev = rc->pcie.dev;
+	int ret;
+
+	if (rc->quirk_detect_quiet_flag)
+		cdns_pcie_detect_quiet_min_delay_set(&rc->pcie);
+
+	cdns_pcie_host_enable_ptm_response(pcie);
+
+	ret = cdns_pcie_start_link(pcie);
+	if (ret) {
+		dev_err(dev, "Failed to start link\n");
+		return ret;
+	}
+
+	ret = cdns_pcie_host_start_link(rc);
+	if (ret)
+		dev_dbg(dev, "PCIe link never came up\n");
+
+	return 0;
+}
+
 int cdns_pcie_host_setup(struct cdns_pcie_rc *rc)
 {
 	struct device *dev = rc->pcie.dev;
@@ -533,25 +556,14 @@ int cdns_pcie_host_setup(struct cdns_pcie_rc *rc)
 		return PTR_ERR(rc->cfg_base);
 	rc->cfg_res = res;
 
-	if (rc->quirk_detect_quiet_flag)
-		cdns_pcie_detect_quiet_min_delay_set(&rc->pcie);
-
-	cdns_pcie_host_enable_ptm_response(pcie);
-
-	ret = cdns_pcie_start_link(pcie);
-	if (ret) {
-		dev_err(dev, "Failed to start link\n");
-		return ret;
-	}
-
-	ret = cdns_pcie_host_start_link(rc);
+	ret = cdns_pcie_host_link_setup(rc);
 	if (ret)
-		dev_dbg(dev, "PCIe link never came up\n");
+		return ret;
 
 	for (bar = RP_BAR0; bar <= RP_NO_BAR; bar++)
 		rc->avail_ib_bar[bar] = true;
 
-	ret = cdns_pcie_host_init(dev, rc);
+	ret = cdns_pcie_host_init(rc);
 	if (ret)
 		return ret;
 
diff --git a/drivers/pci/controller/cadence/pcie-cadence.h b/drivers/pci/controller/cadence/pcie-cadence.h
index 7a66a2f815dc..f5eeff834ec1 100644
--- a/drivers/pci/controller/cadence/pcie-cadence.h
+++ b/drivers/pci/controller/cadence/pcie-cadence.h
@@ -314,7 +314,6 @@ struct cdns_pcie {
 /**
  * struct cdns_pcie_rc - private data for this PCIe Root Complex driver
  * @pcie: Cadence PCIe controller
- * @dev: pointer to PCIe device
  * @cfg_res: start/end offsets in the physical system memory to map PCI
  *           configuration space accesses
  * @cfg_base: IO mapped window to access the PCI configuration space of a
@@ -521,10 +520,22 @@ static inline bool cdns_pcie_link_up(struct cdns_pcie *pcie)
 }
 
 #ifdef CONFIG_PCIE_CADENCE_HOST
+int cdns_pcie_host_link_setup(struct cdns_pcie_rc *rc);
+int cdns_pcie_host_init(struct cdns_pcie_rc *rc);
 int cdns_pcie_host_setup(struct cdns_pcie_rc *rc);
 void __iomem *cdns_pci_map_bus(struct pci_bus *bus, unsigned int devfn,
 			       int where);
 #else
+static inline int cdns_pcie_host_link_setup(struct cdns_pcie_rc *rc)
+{
+	return 0;
+}
+
+static inline int cdns_pcie_host_init(struct cdns_pcie_rc *rc)
+{
+	return 0;
+}
+
 static inline int cdns_pcie_host_setup(struct cdns_pcie_rc *rc)
 {
 	return 0;
diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
index 4c38181acffa..b6d6778b0698 100644
--- a/drivers/pci/controller/dwc/Kconfig
+++ b/drivers/pci/controller/dwc/Kconfig
@@ -265,12 +265,16 @@ config PCIE_DW_PLAT_EP
 	  order to enable device-specific features PCI_DW_PLAT_EP must be
 	  selected.
 
+config PCIE_QCOM_COMMON
+	bool
+
 config PCIE_QCOM
 	bool "Qualcomm PCIe controller (host mode)"
 	depends on OF && (ARCH_QCOM || COMPILE_TEST)
 	depends on PCI_MSI
 	select PCIE_DW_HOST
 	select CRC8
+	select PCIE_QCOM_COMMON
 	help
 	  Say Y here to enable PCIe controller support on Qualcomm SoCs. The
 	  PCIe controller uses the DesignWare core plus Qualcomm-specific
@@ -281,6 +285,7 @@ config PCIE_QCOM_EP
 	depends on OF && (ARCH_QCOM || COMPILE_TEST)
 	depends on PCI_ENDPOINT
 	select PCIE_DW_EP
+	select PCIE_QCOM_COMMON
 	help
 	  Say Y here to enable support for the PCIe controllers on Qualcomm SoCs
 	  to work in endpoint mode. The PCIe controller uses the DesignWare core
diff --git a/drivers/pci/controller/dwc/Makefile b/drivers/pci/controller/dwc/Makefile
index ec215b3d6191..a8308d9ea986 100644
--- a/drivers/pci/controller/dwc/Makefile
+++ b/drivers/pci/controller/dwc/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_PCIE_SPEAR13XX) += pcie-spear13xx.o
 obj-$(CONFIG_PCI_KEYSTONE) += pci-keystone.o
 obj-$(CONFIG_PCI_LAYERSCAPE) += pci-layerscape.o
 obj-$(CONFIG_PCI_LAYERSCAPE_EP) += pci-layerscape-ep.o
+obj-$(CONFIG_PCIE_QCOM_COMMON) += pcie-qcom-common.o
 obj-$(CONFIG_PCIE_QCOM) += pcie-qcom.o
 obj-$(CONFIG_PCIE_QCOM_EP) += pcie-qcom-ep.o
 obj-$(CONFIG_PCIE_ARMADA_8K) += pcie-armada8k.o
diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c
index 4fe3b0cb72ec..5c62e1a3ba52 100644
--- a/drivers/pci/controller/dwc/pci-dra7xx.c
+++ b/drivers/pci/controller/dwc/pci-dra7xx.c
@@ -850,14 +850,21 @@ static int dra7xx_pcie_probe(struct platform_device *pdev)
 	dra7xx->mode = mode;
 
 	ret = devm_request_threaded_irq(dev, irq, NULL, dra7xx_pcie_irq_handler,
-			       IRQF_SHARED, "dra7xx-pcie-main", dra7xx);
+					IRQF_SHARED | IRQF_ONESHOT,
+					"dra7xx-pcie-main", dra7xx);
 	if (ret) {
 		dev_err(dev, "failed to request irq\n");
-		goto err_gpio;
+		goto err_deinit;
 	}
 
 	return 0;
 
+err_deinit:
+	if (dra7xx->mode == DW_PCIE_RC_TYPE)
+		dw_pcie_host_deinit(&dra7xx->pci->pp);
+	else
+		dw_pcie_ep_deinit(&dra7xx->pci->ep);
+
 err_gpio:
 err_get_sync:
 	pm_runtime_put(dev);
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 964d67756eb2..808d1f105417 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/interrupt.h>
 #include <linux/reset.h>
+#include <linux/phy/pcie.h>
 #include <linux/phy/phy.h>
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
@@ -54,9 +55,9 @@
 #define IMX95_PE0_GEN_CTRL_3			0x1058
 #define IMX95_PCIE_LTSSM_EN			BIT(0)
 
-#define to_imx6_pcie(x)	dev_get_drvdata((x)->dev)
+#define to_imx_pcie(x)	dev_get_drvdata((x)->dev)
 
-enum imx6_pcie_variants {
+enum imx_pcie_variants {
 	IMX6Q,
 	IMX6SX,
 	IMX6QP,
@@ -64,6 +65,7 @@ enum imx6_pcie_variants {
 	IMX8MQ,
 	IMX8MM,
 	IMX8MP,
+	IMX8Q,
 	IMX95,
 	IMX8MQ_EP,
 	IMX8MM_EP,
@@ -71,25 +73,25 @@ enum imx6_pcie_variants {
 	IMX95_EP,
 };
 
-#define IMX6_PCIE_FLAG_IMX6_PHY			BIT(0)
-#define IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE	BIT(1)
-#define IMX6_PCIE_FLAG_SUPPORTS_SUSPEND		BIT(2)
-#define IMX6_PCIE_FLAG_HAS_PHYDRV			BIT(3)
-#define IMX6_PCIE_FLAG_HAS_APP_RESET		BIT(4)
-#define IMX6_PCIE_FLAG_HAS_PHY_RESET		BIT(5)
-#define IMX6_PCIE_FLAG_HAS_SERDES		BIT(6)
-#define IMX6_PCIE_FLAG_SUPPORT_64BIT		BIT(7)
+#define IMX_PCIE_FLAG_IMX_PHY			BIT(0)
+#define IMX_PCIE_FLAG_IMX_SPEED_CHANGE		BIT(1)
+#define IMX_PCIE_FLAG_SUPPORTS_SUSPEND		BIT(2)
+#define IMX_PCIE_FLAG_HAS_PHYDRV		BIT(3)
+#define IMX_PCIE_FLAG_HAS_APP_RESET		BIT(4)
+#define IMX_PCIE_FLAG_HAS_PHY_RESET		BIT(5)
+#define IMX_PCIE_FLAG_HAS_SERDES		BIT(6)
+#define IMX_PCIE_FLAG_SUPPORT_64BIT		BIT(7)
+#define IMX_PCIE_FLAG_CPU_ADDR_FIXUP		BIT(8)
 
-#define imx6_check_flag(pci, val)     (pci->drvdata->flags & val)
+#define imx_check_flag(pci, val)	(pci->drvdata->flags & val)
 
-#define IMX6_PCIE_MAX_CLKS       6
+#define IMX_PCIE_MAX_CLKS	6
+#define IMX_PCIE_MAX_INSTANCES	2
 
-#define IMX6_PCIE_MAX_INSTANCES			2
+struct imx_pcie;
 
-struct imx6_pcie;
-
-struct imx6_pcie_drvdata {
-	enum imx6_pcie_variants variant;
+struct imx_pcie_drvdata {
+	enum imx_pcie_variants variant;
 	enum dw_pcie_device_mode mode;
 	u32 flags;
 	int dbi_length;
@@ -98,17 +100,19 @@ struct imx6_pcie_drvdata {
 	const u32 clks_cnt;
 	const u32 ltssm_off;
 	const u32 ltssm_mask;
-	const u32 mode_off[IMX6_PCIE_MAX_INSTANCES];
-	const u32 mode_mask[IMX6_PCIE_MAX_INSTANCES];
+	const u32 mode_off[IMX_PCIE_MAX_INSTANCES];
+	const u32 mode_mask[IMX_PCIE_MAX_INSTANCES];
 	const struct pci_epc_features *epc_features;
-	int (*init_phy)(struct imx6_pcie *pcie);
+	int (*init_phy)(struct imx_pcie *pcie);
+	int (*enable_ref_clk)(struct imx_pcie *pcie, bool enable);
+	int (*core_reset)(struct imx_pcie *pcie, bool assert);
 };
 
-struct imx6_pcie {
+struct imx_pcie {
 	struct dw_pcie		*pci;
 	struct gpio_desc	*reset_gpiod;
 	bool			link_is_up;
-	struct clk_bulk_data	clks[IMX6_PCIE_MAX_CLKS];
+	struct clk_bulk_data	clks[IMX_PCIE_MAX_CLKS];
 	struct regmap		*iomuxc_gpr;
 	u16			msi_ctrl;
 	u32			controller_id;
@@ -129,7 +133,7 @@ struct imx6_pcie {
 	/* power domain for pcie phy */
 	struct device		*pd_pcie_phy;
 	struct phy		*phy;
-	const struct imx6_pcie_drvdata *drvdata;
+	const struct imx_pcie_drvdata *drvdata;
 };
 
 /* Parameters for the waiting for PCIe PHY PLL to lock on i.MX7 */
@@ -184,28 +188,28 @@ struct imx6_pcie {
 #define PHY_RX_OVRD_IN_LO_RX_DATA_EN		BIT(5)
 #define PHY_RX_OVRD_IN_LO_RX_PLL_EN		BIT(3)
 
-static unsigned int imx6_pcie_grp_offset(const struct imx6_pcie *imx6_pcie)
+static unsigned int imx_pcie_grp_offset(const struct imx_pcie *imx_pcie)
 {
-	WARN_ON(imx6_pcie->drvdata->variant != IMX8MQ &&
-		imx6_pcie->drvdata->variant != IMX8MQ_EP &&
-		imx6_pcie->drvdata->variant != IMX8MM &&
-		imx6_pcie->drvdata->variant != IMX8MM_EP &&
-		imx6_pcie->drvdata->variant != IMX8MP &&
-		imx6_pcie->drvdata->variant != IMX8MP_EP);
-	return imx6_pcie->controller_id == 1 ? IOMUXC_GPR16 : IOMUXC_GPR14;
+	WARN_ON(imx_pcie->drvdata->variant != IMX8MQ &&
+		imx_pcie->drvdata->variant != IMX8MQ_EP &&
+		imx_pcie->drvdata->variant != IMX8MM &&
+		imx_pcie->drvdata->variant != IMX8MM_EP &&
+		imx_pcie->drvdata->variant != IMX8MP &&
+		imx_pcie->drvdata->variant != IMX8MP_EP);
+	return imx_pcie->controller_id == 1 ? IOMUXC_GPR16 : IOMUXC_GPR14;
 }
 
-static int imx95_pcie_init_phy(struct imx6_pcie *imx6_pcie)
+static int imx95_pcie_init_phy(struct imx_pcie *imx_pcie)
 {
-	regmap_update_bits(imx6_pcie->iomuxc_gpr,
+	regmap_update_bits(imx_pcie->iomuxc_gpr,
 			IMX95_PCIE_SS_RW_REG_0,
 			IMX95_PCIE_PHY_CR_PARA_SEL,
 			IMX95_PCIE_PHY_CR_PARA_SEL);
 
-	regmap_update_bits(imx6_pcie->iomuxc_gpr,
+	regmap_update_bits(imx_pcie->iomuxc_gpr,
 			   IMX95_PCIE_PHY_GEN_CTRL,
 			   IMX95_PCIE_REF_USE_PAD, 0);
-	regmap_update_bits(imx6_pcie->iomuxc_gpr,
+	regmap_update_bits(imx_pcie->iomuxc_gpr,
 			   IMX95_PCIE_SS_RW_REG_0,
 			   IMX95_PCIE_REF_CLKEN,
 			   IMX95_PCIE_REF_CLKEN);
@@ -213,9 +217,9 @@ static int imx95_pcie_init_phy(struct imx6_pcie *imx6_pcie)
 	return 0;
 }
 
-static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie)
+static void imx_pcie_configure_type(struct imx_pcie *imx_pcie)
 {
-	const struct imx6_pcie_drvdata *drvdata = imx6_pcie->drvdata;
+	const struct imx_pcie_drvdata *drvdata = imx_pcie->drvdata;
 	unsigned int mask, val, mode, id;
 
 	if (drvdata->mode == DW_PCIE_EP_TYPE)
@@ -223,7 +227,11 @@ static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie)
 	else
 		mode = PCI_EXP_TYPE_ROOT_PORT;
 
-	id = imx6_pcie->controller_id;
+	id = imx_pcie->controller_id;
+
+	/* If mode_mask is 0, then generic PHY driver is used to set the mode */
+	if (!drvdata->mode_mask[0])
+		return;
 
 	/* If mode_mask[id] is zero, means each controller have its individual gpr */
 	if (!drvdata->mode_mask[id])
@@ -232,12 +240,12 @@ static void imx6_pcie_configure_type(struct imx6_pcie *imx6_pcie)
 	mask = drvdata->mode_mask[id];
 	val = mode << (ffs(mask) - 1);
 
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, drvdata->mode_off[id], mask, val);
+	regmap_update_bits(imx_pcie->iomuxc_gpr, drvdata->mode_off[id], mask, val);
 }
 
-static int pcie_phy_poll_ack(struct imx6_pcie *imx6_pcie, bool exp_val)
+static int pcie_phy_poll_ack(struct imx_pcie *imx_pcie, bool exp_val)
 {
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 	bool val;
 	u32 max_iterations = 10;
 	u32 wait_counter = 0;
@@ -256,9 +264,9 @@ static int pcie_phy_poll_ack(struct imx6_pcie *imx6_pcie, bool exp_val)
 	return -ETIMEDOUT;
 }
 
-static int pcie_phy_wait_ack(struct imx6_pcie *imx6_pcie, int addr)
+static int pcie_phy_wait_ack(struct imx_pcie *imx_pcie, int addr)
 {
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 	u32 val;
 	int ret;
 
@@ -268,24 +276,24 @@ static int pcie_phy_wait_ack(struct imx6_pcie *imx6_pcie, int addr)
 	val |= PCIE_PHY_CTRL_CAP_ADR;
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, val);
 
-	ret = pcie_phy_poll_ack(imx6_pcie, true);
+	ret = pcie_phy_poll_ack(imx_pcie, true);
 	if (ret)
 		return ret;
 
 	val = PCIE_PHY_CTRL_DATA(addr);
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, val);
 
-	return pcie_phy_poll_ack(imx6_pcie, false);
+	return pcie_phy_poll_ack(imx_pcie, false);
 }
 
 /* Read from the 16-bit PCIe PHY control registers (not memory-mapped) */
-static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, u16 *data)
+static int pcie_phy_read(struct imx_pcie *imx_pcie, int addr, u16 *data)
 {
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 	u32 phy_ctl;
 	int ret;
 
-	ret = pcie_phy_wait_ack(imx6_pcie, addr);
+	ret = pcie_phy_wait_ack(imx_pcie, addr);
 	if (ret)
 		return ret;
 
@@ -293,7 +301,7 @@ static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, u16 *data)
 	phy_ctl = PCIE_PHY_CTRL_RD;
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, phy_ctl);
 
-	ret = pcie_phy_poll_ack(imx6_pcie, true);
+	ret = pcie_phy_poll_ack(imx_pcie, true);
 	if (ret)
 		return ret;
 
@@ -302,18 +310,18 @@ static int pcie_phy_read(struct imx6_pcie *imx6_pcie, int addr, u16 *data)
 	/* deassert Read signal */
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, 0x00);
 
-	return pcie_phy_poll_ack(imx6_pcie, false);
+	return pcie_phy_poll_ack(imx_pcie, false);
 }
 
-static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
+static int pcie_phy_write(struct imx_pcie *imx_pcie, int addr, u16 data)
 {
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 	u32 var;
 	int ret;
 
 	/* write addr */
 	/* cap addr */
-	ret = pcie_phy_wait_ack(imx6_pcie, addr);
+	ret = pcie_phy_wait_ack(imx_pcie, addr);
 	if (ret)
 		return ret;
 
@@ -324,7 +332,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 	var |= PCIE_PHY_CTRL_CAP_DAT;
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var);
 
-	ret = pcie_phy_poll_ack(imx6_pcie, true);
+	ret = pcie_phy_poll_ack(imx_pcie, true);
 	if (ret)
 		return ret;
 
@@ -333,7 +341,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var);
 
 	/* wait for ack de-assertion */
-	ret = pcie_phy_poll_ack(imx6_pcie, false);
+	ret = pcie_phy_poll_ack(imx_pcie, false);
 	if (ret)
 		return ret;
 
@@ -342,7 +350,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var);
 
 	/* wait for ack */
-	ret = pcie_phy_poll_ack(imx6_pcie, true);
+	ret = pcie_phy_poll_ack(imx_pcie, true);
 	if (ret)
 		return ret;
 
@@ -351,7 +359,7 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 	dw_pcie_writel_dbi(pci, PCIE_PHY_CTRL, var);
 
 	/* wait for ack de-assertion */
-	ret = pcie_phy_poll_ack(imx6_pcie, false);
+	ret = pcie_phy_poll_ack(imx_pcie, false);
 	if (ret)
 		return ret;
 
@@ -360,74 +368,74 @@ static int pcie_phy_write(struct imx6_pcie *imx6_pcie, int addr, u16 data)
 	return 0;
 }
 
-static int imx8mq_pcie_init_phy(struct imx6_pcie *imx6_pcie)
+static int imx8mq_pcie_init_phy(struct imx_pcie *imx_pcie)
 {
 	/* TODO: Currently this code assumes external oscillator is being used */
-	regmap_update_bits(imx6_pcie->iomuxc_gpr,
-			   imx6_pcie_grp_offset(imx6_pcie),
+	regmap_update_bits(imx_pcie->iomuxc_gpr,
+			   imx_pcie_grp_offset(imx_pcie),
 			   IMX8MQ_GPR_PCIE_REF_USE_PAD,
 			   IMX8MQ_GPR_PCIE_REF_USE_PAD);
 	/*
 	 * Regarding the datasheet, the PCIE_VPH is suggested to be 1.8V. If the PCIE_VPH is
 	 * supplied by 3.3V, the VREG_BYPASS should be cleared to zero.
 	 */
-	if (imx6_pcie->vph && regulator_get_voltage(imx6_pcie->vph) > 3000000)
-		regmap_update_bits(imx6_pcie->iomuxc_gpr,
-				   imx6_pcie_grp_offset(imx6_pcie),
+	if (imx_pcie->vph && regulator_get_voltage(imx_pcie->vph) > 3000000)
+		regmap_update_bits(imx_pcie->iomuxc_gpr,
+				   imx_pcie_grp_offset(imx_pcie),
 				   IMX8MQ_GPR_PCIE_VREG_BYPASS,
 				   0);
 
 	return 0;
 }
 
-static int imx7d_pcie_init_phy(struct imx6_pcie *imx6_pcie)
+static int imx7d_pcie_init_phy(struct imx_pcie *imx_pcie)
 {
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12, IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, 0);
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12, IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, 0);
 
 	return 0;
 }
 
-static int imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie)
+static int imx_pcie_init_phy(struct imx_pcie *imx_pcie)
 {
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
 				   IMX6Q_GPR12_PCIE_CTL_2, 0 << 10);
 
 	/* configure constant input signal to the pcie ctrl and phy */
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
 			   IMX6Q_GPR12_LOS_LEVEL, 9 << 4);
 
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR8,
 			   IMX6Q_GPR8_TX_DEEMPH_GEN1,
-			   imx6_pcie->tx_deemph_gen1 << 0);
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			   imx_pcie->tx_deemph_gen1 << 0);
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR8,
 			   IMX6Q_GPR8_TX_DEEMPH_GEN2_3P5DB,
-			   imx6_pcie->tx_deemph_gen2_3p5db << 6);
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			   imx_pcie->tx_deemph_gen2_3p5db << 6);
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR8,
 			   IMX6Q_GPR8_TX_DEEMPH_GEN2_6DB,
-			   imx6_pcie->tx_deemph_gen2_6db << 12);
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			   imx_pcie->tx_deemph_gen2_6db << 12);
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR8,
 			   IMX6Q_GPR8_TX_SWING_FULL,
-			   imx6_pcie->tx_swing_full << 18);
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			   imx_pcie->tx_swing_full << 18);
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR8,
 			   IMX6Q_GPR8_TX_SWING_LOW,
-			   imx6_pcie->tx_swing_low << 25);
+			   imx_pcie->tx_swing_low << 25);
 	return 0;
 }
 
-static int imx6sx_pcie_init_phy(struct imx6_pcie *imx6_pcie)
+static int imx6sx_pcie_init_phy(struct imx_pcie *imx_pcie)
 {
-	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
 			   IMX6SX_GPR12_PCIE_RX_EQ_MASK, IMX6SX_GPR12_PCIE_RX_EQ_2);
 
-	return imx6_pcie_init_phy(imx6_pcie);
+	return imx_pcie_init_phy(imx_pcie);
 }
 
-static void imx7d_pcie_wait_for_phy_pll_lock(struct imx6_pcie *imx6_pcie)
+static void imx7d_pcie_wait_for_phy_pll_lock(struct imx_pcie *imx_pcie)
 {
 	u32 val;
-	struct device *dev = imx6_pcie->pci->dev;
+	struct device *dev = imx_pcie->pci->dev;
 
-	if (regmap_read_poll_timeout(imx6_pcie->iomuxc_gpr,
+	if (regmap_read_poll_timeout(imx_pcie->iomuxc_gpr,
 				     IOMUXC_GPR22, val,
 				     val & IMX7D_GPR22_PCIE_PHY_PLL_LOCKED,
 				     PHY_PLL_LOCK_WAIT_USLEEP_MAX,
@@ -435,19 +443,19 @@ static void imx7d_pcie_wait_for_phy_pll_lock(struct imx6_pcie *imx6_pcie)
 		dev_err(dev, "PCIe PLL lock timeout\n");
 }
 
-static int imx6_setup_phy_mpll(struct imx6_pcie *imx6_pcie)
+static int imx_setup_phy_mpll(struct imx_pcie *imx_pcie)
 {
 	unsigned long phy_rate = 0;
 	int mult, div;
 	u16 val;
 	int i;
 
-	if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
+	if (!(imx_pcie->drvdata->flags & IMX_PCIE_FLAG_IMX_PHY))
 		return 0;
 
-	for (i = 0; i < imx6_pcie->drvdata->clks_cnt; i++)
-		if (strncmp(imx6_pcie->clks[i].id, "pcie_phy", 8) == 0)
-			phy_rate = clk_get_rate(imx6_pcie->clks[i].clk);
+	for (i = 0; i < imx_pcie->drvdata->clks_cnt; i++)
+		if (strncmp(imx_pcie->clks[i].id, "pcie_phy", 8) == 0)
+			phy_rate = clk_get_rate(imx_pcie->clks[i].clk);
 
 	switch (phy_rate) {
 	case 125000000:
@@ -465,46 +473,46 @@ static int imx6_setup_phy_mpll(struct imx6_pcie *imx6_pcie)
 		div = 1;
 		break;
 	default:
-		dev_err(imx6_pcie->pci->dev,
+		dev_err(imx_pcie->pci->dev,
 			"Unsupported PHY reference clock rate %lu\n", phy_rate);
 		return -EINVAL;
 	}
 
-	pcie_phy_read(imx6_pcie, PCIE_PHY_MPLL_OVRD_IN_LO, &val);
+	pcie_phy_read(imx_pcie, PCIE_PHY_MPLL_OVRD_IN_LO, &val);
 	val &= ~(PCIE_PHY_MPLL_MULTIPLIER_MASK <<
 		 PCIE_PHY_MPLL_MULTIPLIER_SHIFT);
 	val |= mult << PCIE_PHY_MPLL_MULTIPLIER_SHIFT;
 	val |= PCIE_PHY_MPLL_MULTIPLIER_OVRD;
-	pcie_phy_write(imx6_pcie, PCIE_PHY_MPLL_OVRD_IN_LO, val);
+	pcie_phy_write(imx_pcie, PCIE_PHY_MPLL_OVRD_IN_LO, val);
 
-	pcie_phy_read(imx6_pcie, PCIE_PHY_ATEOVRD, &val);
+	pcie_phy_read(imx_pcie, PCIE_PHY_ATEOVRD, &val);
 	val &= ~(PCIE_PHY_ATEOVRD_REF_CLKDIV_MASK <<
 		 PCIE_PHY_ATEOVRD_REF_CLKDIV_SHIFT);
 	val |= div << PCIE_PHY_ATEOVRD_REF_CLKDIV_SHIFT;
 	val |= PCIE_PHY_ATEOVRD_EN;
-	pcie_phy_write(imx6_pcie, PCIE_PHY_ATEOVRD, val);
+	pcie_phy_write(imx_pcie, PCIE_PHY_ATEOVRD, val);
 
 	return 0;
 }
 
-static void imx6_pcie_reset_phy(struct imx6_pcie *imx6_pcie)
+static void imx_pcie_reset_phy(struct imx_pcie *imx_pcie)
 {
 	u16 tmp;
 
-	if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_IMX6_PHY))
+	if (!(imx_pcie->drvdata->flags & IMX_PCIE_FLAG_IMX_PHY))
 		return;
 
-	pcie_phy_read(imx6_pcie, PHY_RX_OVRD_IN_LO, &tmp);
+	pcie_phy_read(imx_pcie, PHY_RX_OVRD_IN_LO, &tmp);
 	tmp |= (PHY_RX_OVRD_IN_LO_RX_DATA_EN |
 		PHY_RX_OVRD_IN_LO_RX_PLL_EN);
-	pcie_phy_write(imx6_pcie, PHY_RX_OVRD_IN_LO, tmp);
+	pcie_phy_write(imx_pcie, PHY_RX_OVRD_IN_LO, tmp);
 
 	usleep_range(2000, 3000);
 
-	pcie_phy_read(imx6_pcie, PHY_RX_OVRD_IN_LO, &tmp);
+	pcie_phy_read(imx_pcie, PHY_RX_OVRD_IN_LO, &tmp);
 	tmp &= ~(PHY_RX_OVRD_IN_LO_RX_DATA_EN |
 		  PHY_RX_OVRD_IN_LO_RX_PLL_EN);
-	pcie_phy_write(imx6_pcie, PHY_RX_OVRD_IN_LO, tmp);
+	pcie_phy_write(imx_pcie, PHY_RX_OVRD_IN_LO, tmp);
 }
 
 #ifdef CONFIG_ARM
@@ -543,22 +551,22 @@ static int imx6q_pcie_abort_handler(unsigned long addr,
 }
 #endif
 
-static int imx6_pcie_attach_pd(struct device *dev)
+static int imx_pcie_attach_pd(struct device *dev)
 {
-	struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
+	struct imx_pcie *imx_pcie = dev_get_drvdata(dev);
 	struct device_link *link;
 
 	/* Do nothing when in a single power domain */
 	if (dev->pm_domain)
 		return 0;
 
-	imx6_pcie->pd_pcie = dev_pm_domain_attach_by_name(dev, "pcie");
-	if (IS_ERR(imx6_pcie->pd_pcie))
-		return PTR_ERR(imx6_pcie->pd_pcie);
+	imx_pcie->pd_pcie = dev_pm_domain_attach_by_name(dev, "pcie");
+	if (IS_ERR(imx_pcie->pd_pcie))
+		return PTR_ERR(imx_pcie->pd_pcie);
 	/* Do nothing when power domain missing */
-	if (!imx6_pcie->pd_pcie)
+	if (!imx_pcie->pd_pcie)
 		return 0;
-	link = device_link_add(dev, imx6_pcie->pd_pcie,
+	link = device_link_add(dev, imx_pcie->pd_pcie,
 			DL_FLAG_STATELESS |
 			DL_FLAG_PM_RUNTIME |
 			DL_FLAG_RPM_ACTIVE);
@@ -567,11 +575,11 @@ static int imx6_pcie_attach_pd(struct device *dev)
 		return -EINVAL;
 	}
 
-	imx6_pcie->pd_pcie_phy = dev_pm_domain_attach_by_name(dev, "pcie_phy");
-	if (IS_ERR(imx6_pcie->pd_pcie_phy))
-		return PTR_ERR(imx6_pcie->pd_pcie_phy);
+	imx_pcie->pd_pcie_phy = dev_pm_domain_attach_by_name(dev, "pcie_phy");
+	if (IS_ERR(imx_pcie->pd_pcie_phy))
+		return PTR_ERR(imx_pcie->pd_pcie_phy);
 
-	link = device_link_add(dev, imx6_pcie->pd_pcie_phy,
+	link = device_link_add(dev, imx_pcie->pd_pcie_phy,
 			DL_FLAG_STATELESS |
 			DL_FLAG_PM_RUNTIME |
 			DL_FLAG_RPM_ACTIVE);
@@ -583,21 +591,20 @@ static int imx6_pcie_attach_pd(struct device *dev)
 	return 0;
 }
 
-static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie)
+static int imx6sx_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable)
 {
-	unsigned int offset;
-	int ret = 0;
+	if (enable)
+		regmap_clear_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
+				  IMX6SX_GPR12_PCIE_TEST_POWERDOWN);
 
-	switch (imx6_pcie->drvdata->variant) {
-	case IMX6SX:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
-				   IMX6SX_GPR12_PCIE_TEST_POWERDOWN, 0);
-		break;
-	case IMX6QP:
-	case IMX6Q:
+	return 0;
+}
+
+static int imx6q_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable)
+{
+	if (enable) {
 		/* power up core phy and enable ref clock */
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				   IMX6Q_GPR1_PCIE_TEST_PD, 0 << 18);
+		regmap_clear_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR1, IMX6Q_GPR1_PCIE_TEST_PD);
 		/*
 		 * the async reset input need ref clock to sync internally,
 		 * when the ref clock comes after reset, internal synced
@@ -605,71 +612,51 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie)
 		 * add one ~10us delay here.
 		 */
 		usleep_range(10, 100);
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				   IMX6Q_GPR1_PCIE_REF_CLK_EN, 1 << 16);
-		break;
-	case IMX7D:
-	case IMX95:
-	case IMX95_EP:
-		break;
-	case IMX8MM:
-	case IMX8MM_EP:
-	case IMX8MQ:
-	case IMX8MQ_EP:
-	case IMX8MP:
-	case IMX8MP_EP:
-		offset = imx6_pcie_grp_offset(imx6_pcie);
-		/*
-		 * Set the over ride low and enabled
-		 * make sure that REF_CLK is turned on.
-		 */
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, offset,
-				   IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE,
-				   0);
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, offset,
-				   IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN,
-				   IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN);
-		break;
+		regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR1, IMX6Q_GPR1_PCIE_REF_CLK_EN);
+	} else {
+		regmap_clear_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR1, IMX6Q_GPR1_PCIE_REF_CLK_EN);
+		regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR1, IMX6Q_GPR1_PCIE_TEST_PD);
 	}
 
-	return ret;
+	return 0;
 }
 
-static void imx6_pcie_disable_ref_clk(struct imx6_pcie *imx6_pcie)
+static int imx8mm_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable)
 {
-	switch (imx6_pcie->drvdata->variant) {
-	case IMX6QP:
-	case IMX6Q:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				IMX6Q_GPR1_PCIE_REF_CLK_EN, 0);
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				IMX6Q_GPR1_PCIE_TEST_PD,
-				IMX6Q_GPR1_PCIE_TEST_PD);
-		break;
-	case IMX7D:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
-				   IMX7D_GPR12_PCIE_PHY_REFCLK_SEL,
-				   IMX7D_GPR12_PCIE_PHY_REFCLK_SEL);
-		break;
-	default:
-		break;
+	int offset = imx_pcie_grp_offset(imx_pcie);
+
+	if (enable) {
+		regmap_clear_bits(imx_pcie->iomuxc_gpr, offset, IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE);
+		regmap_set_bits(imx_pcie->iomuxc_gpr, offset, IMX8MQ_GPR_PCIE_CLK_REQ_OVERRIDE_EN);
 	}
+
+	return 0;
+}
+
+static int imx7d_pcie_enable_ref_clk(struct imx_pcie *imx_pcie, bool enable)
+{
+	if (!enable)
+		regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
+				IMX7D_GPR12_PCIE_PHY_REFCLK_SEL);
+	return 0;
 }
 
-static int imx6_pcie_clk_enable(struct imx6_pcie *imx6_pcie)
+static int imx_pcie_clk_enable(struct imx_pcie *imx_pcie)
 {
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 	struct device *dev = pci->dev;
 	int ret;
 
-	ret = clk_bulk_prepare_enable(imx6_pcie->drvdata->clks_cnt, imx6_pcie->clks);
+	ret = clk_bulk_prepare_enable(imx_pcie->drvdata->clks_cnt, imx_pcie->clks);
 	if (ret)
 		return ret;
 
-	ret = imx6_pcie_enable_ref_clk(imx6_pcie);
-	if (ret) {
-		dev_err(dev, "unable to enable pcie ref clock\n");
-		goto err_ref_clk;
+	if (imx_pcie->drvdata->enable_ref_clk) {
+		ret = imx_pcie->drvdata->enable_ref_clk(imx_pcie, true);
+		if (ret) {
+			dev_err(dev, "Failed to enable PCIe REFCLK\n");
+			goto err_ref_clk;
+		}
 	}
 
 	/* allow the clocks to stabilize */
@@ -677,99 +664,120 @@ static int imx6_pcie_clk_enable(struct imx6_pcie *imx6_pcie)
 	return 0;
 
 err_ref_clk:
-	clk_bulk_disable_unprepare(imx6_pcie->drvdata->clks_cnt, imx6_pcie->clks);
+	clk_bulk_disable_unprepare(imx_pcie->drvdata->clks_cnt, imx_pcie->clks);
 
 	return ret;
 }
 
-static void imx6_pcie_clk_disable(struct imx6_pcie *imx6_pcie)
+static void imx_pcie_clk_disable(struct imx_pcie *imx_pcie)
 {
-	imx6_pcie_disable_ref_clk(imx6_pcie);
-	clk_bulk_disable_unprepare(imx6_pcie->drvdata->clks_cnt, imx6_pcie->clks);
+	if (imx_pcie->drvdata->enable_ref_clk)
+		imx_pcie->drvdata->enable_ref_clk(imx_pcie, false);
+	clk_bulk_disable_unprepare(imx_pcie->drvdata->clks_cnt, imx_pcie->clks);
 }
 
-static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie)
+static int imx6sx_pcie_core_reset(struct imx_pcie *imx_pcie, bool assert)
 {
-	reset_control_assert(imx6_pcie->pciephy_reset);
-	reset_control_assert(imx6_pcie->apps_reset);
+	if (assert)
+		regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
+				IMX6SX_GPR12_PCIE_TEST_POWERDOWN);
 
-	switch (imx6_pcie->drvdata->variant) {
-	case IMX6SX:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
-				   IMX6SX_GPR12_PCIE_TEST_POWERDOWN,
-				   IMX6SX_GPR12_PCIE_TEST_POWERDOWN);
-		/* Force PCIe PHY reset */
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR5,
-				   IMX6SX_GPR5_PCIE_BTNRST_RESET,
-				   IMX6SX_GPR5_PCIE_BTNRST_RESET);
-		break;
-	case IMX6QP:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				   IMX6Q_GPR1_PCIE_SW_RST,
-				   IMX6Q_GPR1_PCIE_SW_RST);
-		break;
-	case IMX6Q:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				   IMX6Q_GPR1_PCIE_TEST_PD, 1 << 18);
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				   IMX6Q_GPR1_PCIE_REF_CLK_EN, 0 << 16);
-		break;
-	default:
-		break;
-	}
+	/* Force PCIe PHY reset */
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR5, IMX6SX_GPR5_PCIE_BTNRST_RESET,
+			   assert ? IMX6SX_GPR5_PCIE_BTNRST_RESET : 0);
+	return 0;
+}
 
-	/* Some boards don't have PCIe reset GPIO. */
-	gpiod_set_value_cansleep(imx6_pcie->reset_gpiod, 1);
+static int imx6qp_pcie_core_reset(struct imx_pcie *imx_pcie, bool assert)
+{
+	regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR1, IMX6Q_GPR1_PCIE_SW_RST,
+			   assert ? IMX6Q_GPR1_PCIE_SW_RST : 0);
+	if (!assert)
+		usleep_range(200, 500);
+
+	return 0;
 }
 
-static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie)
+static int imx6q_pcie_core_reset(struct imx_pcie *imx_pcie, bool assert)
 {
-	struct dw_pcie *pci = imx6_pcie->pci;
-	struct device *dev = pci->dev;
+	if (!assert)
+		return 0;
 
-	reset_control_deassert(imx6_pcie->pciephy_reset);
+	regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR1, IMX6Q_GPR1_PCIE_TEST_PD);
+	regmap_set_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR1, IMX6Q_GPR1_PCIE_REF_CLK_EN);
 
-	switch (imx6_pcie->drvdata->variant) {
-	case IMX7D:
-		/* Workaround for ERR010728, failure of PCI-e PLL VCO to
-		 * oscillate, especially when cold.  This turns off "Duty-cycle
-		 * Corrector" and other mysterious undocumented things.
-		 */
-		if (likely(imx6_pcie->phy_base)) {
-			/* De-assert DCC_FB_EN */
-			writel(PCIE_PHY_CMN_REG4_DCC_FB_EN,
-			       imx6_pcie->phy_base + PCIE_PHY_CMN_REG4);
-			/* Assert RX_EQS and RX_EQS_SEL */
-			writel(PCIE_PHY_CMN_REG24_RX_EQ_SEL
-				| PCIE_PHY_CMN_REG24_RX_EQ,
-			       imx6_pcie->phy_base + PCIE_PHY_CMN_REG24);
-			/* Assert ATT_MODE */
-			writel(PCIE_PHY_CMN_REG26_ATT_MODE,
-			       imx6_pcie->phy_base + PCIE_PHY_CMN_REG26);
-		} else {
-			dev_warn(dev, "Unable to apply ERR010728 workaround. DT missing fsl,imx7d-pcie-phy phandle ?\n");
-		}
+	return 0;
+}
 
-		imx7d_pcie_wait_for_phy_pll_lock(imx6_pcie);
-		break;
-	case IMX6SX:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR5,
-				   IMX6SX_GPR5_PCIE_BTNRST_RESET, 0);
-		break;
-	case IMX6QP:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
-				   IMX6Q_GPR1_PCIE_SW_RST, 0);
+static int imx7d_pcie_core_reset(struct imx_pcie *imx_pcie, bool assert)
+{
+	struct dw_pcie *pci = imx_pcie->pci;
+	struct device *dev = pci->dev;
 
-		usleep_range(200, 500);
-		break;
-	default:
-		break;
+	if (assert)
+		return 0;
+
+	/*
+	 * Workaround for ERR010728 (IMX7DS_2N09P, Rev. 1.1, 4/2023):
+	 *
+	 * PCIe: PLL may fail to lock under corner conditions.
+	 *
+	 * Initial VCO oscillation may fail under corner conditions such as
+	 * cold temperature which will cause the PCIe PLL fail to lock in the
+	 * initialization phase.
+	 *
+	 * The Duty-cycle Corrector calibration must be disabled.
+	 *
+	 * 1. De-assert the G_RST signal by clearing
+	 *    SRC_PCIEPHY_RCR[PCIEPHY_G_RST].
+	 * 2. De-assert DCC_FB_EN by writing data “0x29” to the register
+	 *    address 0x306d0014 (PCIE_PHY_CMN_REG4).
+	 * 3. Assert RX_EQS, RX_EQ_SEL by writing data “0x48” to the register
+	 *    address 0x306d0090 (PCIE_PHY_CMN_REG24).
+	 * 4. Assert ATT_MODE by writing data “0xbc” to the register
+	 *    address 0x306d0098 (PCIE_PHY_CMN_REG26).
+	 * 5. De-assert the CMN_RST signal by clearing register bit
+	 *    SRC_PCIEPHY_RCR[PCIEPHY_BTN]
+	 */
+
+	if (likely(imx_pcie->phy_base)) {
+		/* De-assert DCC_FB_EN */
+		writel(PCIE_PHY_CMN_REG4_DCC_FB_EN, imx_pcie->phy_base + PCIE_PHY_CMN_REG4);
+		/* Assert RX_EQS and RX_EQS_SEL */
+		writel(PCIE_PHY_CMN_REG24_RX_EQ_SEL | PCIE_PHY_CMN_REG24_RX_EQ,
+		       imx_pcie->phy_base + PCIE_PHY_CMN_REG24);
+		/* Assert ATT_MODE */
+		writel(PCIE_PHY_CMN_REG26_ATT_MODE, imx_pcie->phy_base + PCIE_PHY_CMN_REG26);
+	} else {
+		dev_warn(dev, "Unable to apply ERR010728 workaround. DT missing fsl,imx7d-pcie-phy phandle ?\n");
 	}
+	imx7d_pcie_wait_for_phy_pll_lock(imx_pcie);
+	return 0;
+}
+
+static void imx_pcie_assert_core_reset(struct imx_pcie *imx_pcie)
+{
+	reset_control_assert(imx_pcie->pciephy_reset);
+	reset_control_assert(imx_pcie->apps_reset);
+
+	if (imx_pcie->drvdata->core_reset)
+		imx_pcie->drvdata->core_reset(imx_pcie, true);
+
+	/* Some boards don't have PCIe reset GPIO. */
+	gpiod_set_value_cansleep(imx_pcie->reset_gpiod, 1);
+}
+
+static int imx_pcie_deassert_core_reset(struct imx_pcie *imx_pcie)
+{
+	reset_control_deassert(imx_pcie->pciephy_reset);
+
+	if (imx_pcie->drvdata->core_reset)
+		imx_pcie->drvdata->core_reset(imx_pcie, false);
 
 	/* Some boards don't have PCIe reset GPIO. */
-	if (imx6_pcie->reset_gpiod) {
+	if (imx_pcie->reset_gpiod) {
 		msleep(100);
-		gpiod_set_value_cansleep(imx6_pcie->reset_gpiod, 0);
+		gpiod_set_value_cansleep(imx_pcie->reset_gpiod, 0);
 		/* Wait for 100ms after PERST# deassertion (PCIe r5.0, 6.6.1) */
 		msleep(100);
 	}
@@ -777,9 +785,9 @@ static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie)
 	return 0;
 }
 
-static int imx6_pcie_wait_for_speed_change(struct imx6_pcie *imx6_pcie)
+static int imx_pcie_wait_for_speed_change(struct imx_pcie *imx_pcie)
 {
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 	struct device *dev = pci->dev;
 	u32 tmp;
 	unsigned int retries;
@@ -796,33 +804,38 @@ static int imx6_pcie_wait_for_speed_change(struct imx6_pcie *imx6_pcie)
 	return -ETIMEDOUT;
 }
 
-static void imx6_pcie_ltssm_enable(struct device *dev)
+static void imx_pcie_ltssm_enable(struct device *dev)
 {
-	struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
-	const struct imx6_pcie_drvdata *drvdata = imx6_pcie->drvdata;
+	struct imx_pcie *imx_pcie = dev_get_drvdata(dev);
+	const struct imx_pcie_drvdata *drvdata = imx_pcie->drvdata;
+	u8 offset = dw_pcie_find_capability(imx_pcie->pci, PCI_CAP_ID_EXP);
+	u32 tmp;
 
+	tmp = dw_pcie_readl_dbi(imx_pcie->pci, offset + PCI_EXP_LNKCAP);
+	phy_set_speed(imx_pcie->phy, FIELD_GET(PCI_EXP_LNKCAP_SLS, tmp));
 	if (drvdata->ltssm_mask)
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, drvdata->ltssm_off, drvdata->ltssm_mask,
+		regmap_update_bits(imx_pcie->iomuxc_gpr, drvdata->ltssm_off, drvdata->ltssm_mask,
 				   drvdata->ltssm_mask);
 
-	reset_control_deassert(imx6_pcie->apps_reset);
+	reset_control_deassert(imx_pcie->apps_reset);
 }
 
-static void imx6_pcie_ltssm_disable(struct device *dev)
+static void imx_pcie_ltssm_disable(struct device *dev)
 {
-	struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
-	const struct imx6_pcie_drvdata *drvdata = imx6_pcie->drvdata;
+	struct imx_pcie *imx_pcie = dev_get_drvdata(dev);
+	const struct imx_pcie_drvdata *drvdata = imx_pcie->drvdata;
 
+	phy_set_speed(imx_pcie->phy, 0);
 	if (drvdata->ltssm_mask)
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, drvdata->ltssm_off,
+		regmap_update_bits(imx_pcie->iomuxc_gpr, drvdata->ltssm_off,
 				   drvdata->ltssm_mask, 0);
 
-	reset_control_assert(imx6_pcie->apps_reset);
+	reset_control_assert(imx_pcie->apps_reset);
 }
 
-static int imx6_pcie_start_link(struct dw_pcie *pci)
+static int imx_pcie_start_link(struct dw_pcie *pci)
 {
-	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci);
+	struct imx_pcie *imx_pcie = to_imx_pcie(pci);
 	struct device *dev = pci->dev;
 	u8 offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
 	u32 tmp;
@@ -841,18 +854,18 @@ static int imx6_pcie_start_link(struct dw_pcie *pci)
 	dw_pcie_dbi_ro_wr_dis(pci);
 
 	/* Start LTSSM. */
-	imx6_pcie_ltssm_enable(dev);
+	imx_pcie_ltssm_enable(dev);
 
 	ret = dw_pcie_wait_for_link(pci);
 	if (ret)
 		goto err_reset_phy;
 
-	if (pci->link_gen > 1) {
+	if (pci->max_link_speed > 1) {
 		/* Allow faster modes after the link is up */
 		dw_pcie_dbi_ro_wr_en(pci);
 		tmp = dw_pcie_readl_dbi(pci, offset + PCI_EXP_LNKCAP);
 		tmp &= ~PCI_EXP_LNKCAP_SLS;
-		tmp |= pci->link_gen;
+		tmp |= pci->max_link_speed;
 		dw_pcie_writel_dbi(pci, offset + PCI_EXP_LNKCAP, tmp);
 
 		/*
@@ -864,8 +877,8 @@ static int imx6_pcie_start_link(struct dw_pcie *pci)
 		dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, tmp);
 		dw_pcie_dbi_ro_wr_dis(pci);
 
-		if (imx6_pcie->drvdata->flags &
-		    IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE) {
+		if (imx_pcie->drvdata->flags &
+		    IMX_PCIE_FLAG_IMX_SPEED_CHANGE) {
 			/*
 			 * On i.MX7, DIRECT_SPEED_CHANGE behaves differently
 			 * from i.MX6 family when no link speed transition
@@ -875,7 +888,7 @@ static int imx6_pcie_start_link(struct dw_pcie *pci)
 			 * failure.
 			 */
 
-			ret = imx6_pcie_wait_for_speed_change(imx6_pcie);
+			ret = imx_pcie_wait_for_speed_change(imx_pcie);
 			if (ret) {
 				dev_err(dev, "Failed to bring link up!\n");
 				goto err_reset_phy;
@@ -890,37 +903,37 @@ static int imx6_pcie_start_link(struct dw_pcie *pci)
 		dev_info(dev, "Link: Only Gen1 is enabled\n");
 	}
 
-	imx6_pcie->link_is_up = true;
+	imx_pcie->link_is_up = true;
 	tmp = dw_pcie_readw_dbi(pci, offset + PCI_EXP_LNKSTA);
 	dev_info(dev, "Link up, Gen%i\n", tmp & PCI_EXP_LNKSTA_CLS);
 	return 0;
 
 err_reset_phy:
-	imx6_pcie->link_is_up = false;
+	imx_pcie->link_is_up = false;
 	dev_dbg(dev, "PHY DEBUG_R0=0x%08x DEBUG_R1=0x%08x\n",
 		dw_pcie_readl_dbi(pci, PCIE_PORT_DEBUG0),
 		dw_pcie_readl_dbi(pci, PCIE_PORT_DEBUG1));
-	imx6_pcie_reset_phy(imx6_pcie);
+	imx_pcie_reset_phy(imx_pcie);
 	return 0;
 }
 
-static void imx6_pcie_stop_link(struct dw_pcie *pci)
+static void imx_pcie_stop_link(struct dw_pcie *pci)
 {
 	struct device *dev = pci->dev;
 
 	/* Turn off PCIe LTSSM */
-	imx6_pcie_ltssm_disable(dev);
+	imx_pcie_ltssm_disable(dev);
 }
 
-static int imx6_pcie_host_init(struct dw_pcie_rp *pp)
+static int imx_pcie_host_init(struct dw_pcie_rp *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
 	struct device *dev = pci->dev;
-	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci);
+	struct imx_pcie *imx_pcie = to_imx_pcie(pci);
 	int ret;
 
-	if (imx6_pcie->vpcie) {
-		ret = regulator_enable(imx6_pcie->vpcie);
+	if (imx_pcie->vpcie) {
+		ret = regulator_enable(imx_pcie->vpcie);
 		if (ret) {
 			dev_err(dev, "failed to enable vpcie regulator: %d\n",
 				ret);
@@ -928,83 +941,105 @@ static int imx6_pcie_host_init(struct dw_pcie_rp *pp)
 		}
 	}
 
-	imx6_pcie_assert_core_reset(imx6_pcie);
+	imx_pcie_assert_core_reset(imx_pcie);
 
-	if (imx6_pcie->drvdata->init_phy)
-		imx6_pcie->drvdata->init_phy(imx6_pcie);
+	if (imx_pcie->drvdata->init_phy)
+		imx_pcie->drvdata->init_phy(imx_pcie);
 
-	imx6_pcie_configure_type(imx6_pcie);
+	imx_pcie_configure_type(imx_pcie);
 
-	ret = imx6_pcie_clk_enable(imx6_pcie);
+	ret = imx_pcie_clk_enable(imx_pcie);
 	if (ret) {
 		dev_err(dev, "unable to enable pcie clocks: %d\n", ret);
 		goto err_reg_disable;
 	}
 
-	if (imx6_pcie->phy) {
-		ret = phy_init(imx6_pcie->phy);
+	if (imx_pcie->phy) {
+		ret = phy_init(imx_pcie->phy);
 		if (ret) {
 			dev_err(dev, "pcie PHY power up failed\n");
 			goto err_clk_disable;
 		}
-	}
 
-	if (imx6_pcie->phy) {
-		ret = phy_power_on(imx6_pcie->phy);
+		ret = phy_set_mode_ext(imx_pcie->phy, PHY_MODE_PCIE, PHY_MODE_PCIE_RC);
+		if (ret) {
+			dev_err(dev, "unable to set PCIe PHY mode\n");
+			goto err_phy_exit;
+		}
+
+		ret = phy_power_on(imx_pcie->phy);
 		if (ret) {
 			dev_err(dev, "waiting for PHY ready timeout!\n");
-			goto err_phy_off;
+			goto err_phy_exit;
 		}
 	}
 
-	ret = imx6_pcie_deassert_core_reset(imx6_pcie);
+	ret = imx_pcie_deassert_core_reset(imx_pcie);
 	if (ret < 0) {
 		dev_err(dev, "pcie deassert core reset failed: %d\n", ret);
 		goto err_phy_off;
 	}
 
-	imx6_setup_phy_mpll(imx6_pcie);
+	imx_setup_phy_mpll(imx_pcie);
 
 	return 0;
 
 err_phy_off:
-	if (imx6_pcie->phy)
-		phy_exit(imx6_pcie->phy);
+	phy_power_off(imx_pcie->phy);
+err_phy_exit:
+	phy_exit(imx_pcie->phy);
 err_clk_disable:
-	imx6_pcie_clk_disable(imx6_pcie);
+	imx_pcie_clk_disable(imx_pcie);
 err_reg_disable:
-	if (imx6_pcie->vpcie)
-		regulator_disable(imx6_pcie->vpcie);
+	if (imx_pcie->vpcie)
+		regulator_disable(imx_pcie->vpcie);
 	return ret;
 }
 
-static void imx6_pcie_host_exit(struct dw_pcie_rp *pp)
+static void imx_pcie_host_exit(struct dw_pcie_rp *pp)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
-	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci);
+	struct imx_pcie *imx_pcie = to_imx_pcie(pci);
 
-	if (imx6_pcie->phy) {
-		if (phy_power_off(imx6_pcie->phy))
+	if (imx_pcie->phy) {
+		if (phy_power_off(imx_pcie->phy))
 			dev_err(pci->dev, "unable to power off PHY\n");
-		phy_exit(imx6_pcie->phy);
+		phy_exit(imx_pcie->phy);
 	}
-	imx6_pcie_clk_disable(imx6_pcie);
+	imx_pcie_clk_disable(imx_pcie);
 
-	if (imx6_pcie->vpcie)
-		regulator_disable(imx6_pcie->vpcie);
+	if (imx_pcie->vpcie)
+		regulator_disable(imx_pcie->vpcie);
 }
 
-static const struct dw_pcie_host_ops imx6_pcie_host_ops = {
-	.init = imx6_pcie_host_init,
-	.deinit = imx6_pcie_host_exit,
+static u64 imx_pcie_cpu_addr_fixup(struct dw_pcie *pcie, u64 cpu_addr)
+{
+	struct imx_pcie *imx_pcie = to_imx_pcie(pcie);
+	struct dw_pcie_rp *pp = &pcie->pp;
+	struct resource_entry *entry;
+
+	if (!(imx_pcie->drvdata->flags & IMX_PCIE_FLAG_CPU_ADDR_FIXUP))
+		return cpu_addr;
+
+	entry = resource_list_first_type(&pp->bridge->windows, IORESOURCE_MEM);
+	if (!entry)
+		return cpu_addr;
+
+	return cpu_addr - entry->offset;
+}
+
+static const struct dw_pcie_host_ops imx_pcie_host_ops = {
+	.init = imx_pcie_host_init,
+	.deinit = imx_pcie_host_exit,
 };
 
 static const struct dw_pcie_ops dw_pcie_ops = {
-	.start_link = imx6_pcie_start_link,
-	.stop_link = imx6_pcie_stop_link,
+	.start_link = imx_pcie_start_link,
+	.stop_link = imx_pcie_stop_link,
+	.cpu_addr_fixup = imx_pcie_cpu_addr_fixup,
 };
 
-static void imx6_pcie_ep_init(struct dw_pcie_ep *ep)
+static void imx_pcie_ep_init(struct dw_pcie_ep *ep)
 {
 	enum pci_barno bar;
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
@@ -1013,7 +1048,7 @@ static void imx6_pcie_ep_init(struct dw_pcie_ep *ep)
 		dw_pcie_ep_reset_bar(pci, bar);
 }
 
-static int imx6_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
+static int imx_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no,
 				  unsigned int type, u16 interrupt_num)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
@@ -1060,35 +1095,35 @@ static const struct pci_epc_features imx95_pcie_epc_features = {
 };
 
 static const struct pci_epc_features*
-imx6_pcie_ep_get_features(struct dw_pcie_ep *ep)
+imx_pcie_ep_get_features(struct dw_pcie_ep *ep)
 {
 	struct dw_pcie *pci = to_dw_pcie_from_ep(ep);
-	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci);
+	struct imx_pcie *imx_pcie = to_imx_pcie(pci);
 
-	return imx6_pcie->drvdata->epc_features;
+	return imx_pcie->drvdata->epc_features;
 }
 
 static const struct dw_pcie_ep_ops pcie_ep_ops = {
-	.init = imx6_pcie_ep_init,
-	.raise_irq = imx6_pcie_ep_raise_irq,
-	.get_features = imx6_pcie_ep_get_features,
+	.init = imx_pcie_ep_init,
+	.raise_irq = imx_pcie_ep_raise_irq,
+	.get_features = imx_pcie_ep_get_features,
 };
 
-static int imx6_add_pcie_ep(struct imx6_pcie *imx6_pcie,
+static int imx_add_pcie_ep(struct imx_pcie *imx_pcie,
 			   struct platform_device *pdev)
 {
 	int ret;
 	unsigned int pcie_dbi2_offset;
 	struct dw_pcie_ep *ep;
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 	struct dw_pcie_rp *pp = &pci->pp;
 	struct device *dev = pci->dev;
 
-	imx6_pcie_host_init(pp);
+	imx_pcie_host_init(pp);
 	ep = &pci->ep;
 	ep->ops = &pcie_ep_ops;
 
-	switch (imx6_pcie->drvdata->variant) {
+	switch (imx_pcie->drvdata->variant) {
 	case IMX8MQ_EP:
 	case IMX8MM_EP:
 	case IMX8MP_EP:
@@ -1110,9 +1145,11 @@ static int imx6_add_pcie_ep(struct imx6_pcie *imx6_pcie,
 	if (device_property_match_string(dev, "reg-names", "dbi2") >= 0)
 		pci->dbi_base2 = NULL;
 
-	if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_SUPPORT_64BIT))
+	if (imx_check_flag(imx_pcie, IMX_PCIE_FLAG_SUPPORT_64BIT))
 		dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64));
 
+	ep->page_size = imx_pcie->drvdata->epc_features->align;
+
 	ret = dw_pcie_ep_init(ep);
 	if (ret) {
 		dev_err(dev, "failed to initialize endpoint\n");
@@ -1129,30 +1166,30 @@ static int imx6_add_pcie_ep(struct imx6_pcie *imx6_pcie,
 	pci_epc_init_notify(ep->epc);
 
 	/* Start LTSSM. */
-	imx6_pcie_ltssm_enable(dev);
+	imx_pcie_ltssm_enable(dev);
 
 	return 0;
 }
 
-static void imx6_pcie_pm_turnoff(struct imx6_pcie *imx6_pcie)
+static void imx_pcie_pm_turnoff(struct imx_pcie *imx_pcie)
 {
-	struct device *dev = imx6_pcie->pci->dev;
+	struct device *dev = imx_pcie->pci->dev;
 
 	/* Some variants have a turnoff reset in DT */
-	if (imx6_pcie->turnoff_reset) {
-		reset_control_assert(imx6_pcie->turnoff_reset);
-		reset_control_deassert(imx6_pcie->turnoff_reset);
+	if (imx_pcie->turnoff_reset) {
+		reset_control_assert(imx_pcie->turnoff_reset);
+		reset_control_deassert(imx_pcie->turnoff_reset);
 		goto pm_turnoff_sleep;
 	}
 
 	/* Others poke directly at IOMUXC registers */
-	switch (imx6_pcie->drvdata->variant) {
+	switch (imx_pcie->drvdata->variant) {
 	case IMX6SX:
 	case IMX6QP:
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+		regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
 				IMX6SX_GPR12_PCIE_PM_TURN_OFF,
 				IMX6SX_GPR12_PCIE_PM_TURN_OFF);
-		regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+		regmap_update_bits(imx_pcie->iomuxc_gpr, IOMUXC_GPR12,
 				IMX6SX_GPR12_PCIE_PM_TURN_OFF, 0);
 		break;
 	default:
@@ -1171,73 +1208,73 @@ pm_turnoff_sleep:
 	usleep_range(1000, 10000);
 }
 
-static void imx6_pcie_msi_save_restore(struct imx6_pcie *imx6_pcie, bool save)
+static void imx_pcie_msi_save_restore(struct imx_pcie *imx_pcie, bool save)
 {
 	u8 offset;
 	u16 val;
-	struct dw_pcie *pci = imx6_pcie->pci;
+	struct dw_pcie *pci = imx_pcie->pci;
 
 	if (pci_msi_enabled()) {
 		offset = dw_pcie_find_capability(pci, PCI_CAP_ID_MSI);
 		if (save) {
 			val = dw_pcie_readw_dbi(pci, offset + PCI_MSI_FLAGS);
-			imx6_pcie->msi_ctrl = val;
+			imx_pcie->msi_ctrl = val;
 		} else {
 			dw_pcie_dbi_ro_wr_en(pci);
-			val = imx6_pcie->msi_ctrl;
+			val = imx_pcie->msi_ctrl;
 			dw_pcie_writew_dbi(pci, offset + PCI_MSI_FLAGS, val);
 			dw_pcie_dbi_ro_wr_dis(pci);
 		}
 	}
 }
 
-static int imx6_pcie_suspend_noirq(struct device *dev)
+static int imx_pcie_suspend_noirq(struct device *dev)
 {
-	struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
-	struct dw_pcie_rp *pp = &imx6_pcie->pci->pp;
+	struct imx_pcie *imx_pcie = dev_get_drvdata(dev);
+	struct dw_pcie_rp *pp = &imx_pcie->pci->pp;
 
-	if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_SUPPORTS_SUSPEND))
+	if (!(imx_pcie->drvdata->flags & IMX_PCIE_FLAG_SUPPORTS_SUSPEND))
 		return 0;
 
-	imx6_pcie_msi_save_restore(imx6_pcie, true);
-	imx6_pcie_pm_turnoff(imx6_pcie);
-	imx6_pcie_stop_link(imx6_pcie->pci);
-	imx6_pcie_host_exit(pp);
+	imx_pcie_msi_save_restore(imx_pcie, true);
+	imx_pcie_pm_turnoff(imx_pcie);
+	imx_pcie_stop_link(imx_pcie->pci);
+	imx_pcie_host_exit(pp);
 
 	return 0;
 }
 
-static int imx6_pcie_resume_noirq(struct device *dev)
+static int imx_pcie_resume_noirq(struct device *dev)
 {
 	int ret;
-	struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
-	struct dw_pcie_rp *pp = &imx6_pcie->pci->pp;
+	struct imx_pcie *imx_pcie = dev_get_drvdata(dev);
+	struct dw_pcie_rp *pp = &imx_pcie->pci->pp;
 
-	if (!(imx6_pcie->drvdata->flags & IMX6_PCIE_FLAG_SUPPORTS_SUSPEND))
+	if (!(imx_pcie->drvdata->flags & IMX_PCIE_FLAG_SUPPORTS_SUSPEND))
 		return 0;
 
-	ret = imx6_pcie_host_init(pp);
+	ret = imx_pcie_host_init(pp);
 	if (ret)
 		return ret;
-	imx6_pcie_msi_save_restore(imx6_pcie, false);
+	imx_pcie_msi_save_restore(imx_pcie, false);
 	dw_pcie_setup_rc(pp);
 
-	if (imx6_pcie->link_is_up)
-		imx6_pcie_start_link(imx6_pcie->pci);
+	if (imx_pcie->link_is_up)
+		imx_pcie_start_link(imx_pcie->pci);
 
 	return 0;
 }
 
-static const struct dev_pm_ops imx6_pcie_pm_ops = {
-	NOIRQ_SYSTEM_SLEEP_PM_OPS(imx6_pcie_suspend_noirq,
-				  imx6_pcie_resume_noirq)
+static const struct dev_pm_ops imx_pcie_pm_ops = {
+	NOIRQ_SYSTEM_SLEEP_PM_OPS(imx_pcie_suspend_noirq,
+				  imx_pcie_resume_noirq)
 };
 
-static int imx6_pcie_probe(struct platform_device *pdev)
+static int imx_pcie_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct dw_pcie *pci;
-	struct imx6_pcie *imx6_pcie;
+	struct imx_pcie *imx_pcie;
 	struct device_node *np;
 	struct resource *dbi_base;
 	struct device_node *node = dev->of_node;
@@ -1245,8 +1282,8 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 	u16 val;
 	int i;
 
-	imx6_pcie = devm_kzalloc(dev, sizeof(*imx6_pcie), GFP_KERNEL);
-	if (!imx6_pcie)
+	imx_pcie = devm_kzalloc(dev, sizeof(*imx_pcie), GFP_KERNEL);
+	if (!imx_pcie)
 		return -ENOMEM;
 
 	pci = devm_kzalloc(dev, sizeof(*pci), GFP_KERNEL);
@@ -1255,10 +1292,10 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 
 	pci->dev = dev;
 	pci->ops = &dw_pcie_ops;
-	pci->pp.ops = &imx6_pcie_host_ops;
+	pci->pp.ops = &imx_pcie_host_ops;
 
-	imx6_pcie->pci = pci;
-	imx6_pcie->drvdata = of_device_get_match_data(dev);
+	imx_pcie->pci = pci;
+	imx_pcie->drvdata = of_device_get_match_data(dev);
 
 	/* Find the PHY if one is defined, only imx7d uses it */
 	np = of_parse_phandle(node, "fsl,imx7d-pcie-phy", 0);
@@ -1270,9 +1307,9 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 			dev_err(dev, "Unable to map PCIe PHY\n");
 			return ret;
 		}
-		imx6_pcie->phy_base = devm_ioremap_resource(dev, &res);
-		if (IS_ERR(imx6_pcie->phy_base))
-			return PTR_ERR(imx6_pcie->phy_base);
+		imx_pcie->phy_base = devm_ioremap_resource(dev, &res);
+		if (IS_ERR(imx_pcie->phy_base))
+			return PTR_ERR(imx_pcie->phy_base);
 	}
 
 	pci->dbi_base = devm_platform_get_and_ioremap_resource(pdev, 0, &dbi_base);
@@ -1280,72 +1317,72 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 		return PTR_ERR(pci->dbi_base);
 
 	/* Fetch GPIOs */
-	imx6_pcie->reset_gpiod = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
-	if (IS_ERR(imx6_pcie->reset_gpiod))
-		return dev_err_probe(dev, PTR_ERR(imx6_pcie->reset_gpiod),
+	imx_pcie->reset_gpiod = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
+	if (IS_ERR(imx_pcie->reset_gpiod))
+		return dev_err_probe(dev, PTR_ERR(imx_pcie->reset_gpiod),
 				     "unable to get reset gpio\n");
-	gpiod_set_consumer_name(imx6_pcie->reset_gpiod, "PCIe reset");
+	gpiod_set_consumer_name(imx_pcie->reset_gpiod, "PCIe reset");
 
-	if (imx6_pcie->drvdata->clks_cnt >= IMX6_PCIE_MAX_CLKS)
+	if (imx_pcie->drvdata->clks_cnt >= IMX_PCIE_MAX_CLKS)
 		return dev_err_probe(dev, -ENOMEM, "clks_cnt is too big\n");
 
-	for (i = 0; i < imx6_pcie->drvdata->clks_cnt; i++)
-		imx6_pcie->clks[i].id = imx6_pcie->drvdata->clk_names[i];
+	for (i = 0; i < imx_pcie->drvdata->clks_cnt; i++)
+		imx_pcie->clks[i].id = imx_pcie->drvdata->clk_names[i];
 
 	/* Fetch clocks */
-	ret = devm_clk_bulk_get(dev, imx6_pcie->drvdata->clks_cnt, imx6_pcie->clks);
+	ret = devm_clk_bulk_get(dev, imx_pcie->drvdata->clks_cnt, imx_pcie->clks);
 	if (ret)
 		return ret;
 
-	if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_HAS_PHYDRV)) {
-		imx6_pcie->phy = devm_phy_get(dev, "pcie-phy");
-		if (IS_ERR(imx6_pcie->phy))
-			return dev_err_probe(dev, PTR_ERR(imx6_pcie->phy),
+	if (imx_check_flag(imx_pcie, IMX_PCIE_FLAG_HAS_PHYDRV)) {
+		imx_pcie->phy = devm_phy_get(dev, "pcie-phy");
+		if (IS_ERR(imx_pcie->phy))
+			return dev_err_probe(dev, PTR_ERR(imx_pcie->phy),
 					     "failed to get pcie phy\n");
 	}
 
-	if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_HAS_APP_RESET)) {
-		imx6_pcie->apps_reset = devm_reset_control_get_exclusive(dev, "apps");
-		if (IS_ERR(imx6_pcie->apps_reset))
-			return dev_err_probe(dev, PTR_ERR(imx6_pcie->apps_reset),
+	if (imx_check_flag(imx_pcie, IMX_PCIE_FLAG_HAS_APP_RESET)) {
+		imx_pcie->apps_reset = devm_reset_control_get_exclusive(dev, "apps");
+		if (IS_ERR(imx_pcie->apps_reset))
+			return dev_err_probe(dev, PTR_ERR(imx_pcie->apps_reset),
 					     "failed to get pcie apps reset control\n");
 	}
 
-	if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_HAS_PHY_RESET)) {
-		imx6_pcie->pciephy_reset = devm_reset_control_get_exclusive(dev, "pciephy");
-		if (IS_ERR(imx6_pcie->pciephy_reset))
-			return dev_err_probe(dev, PTR_ERR(imx6_pcie->pciephy_reset),
+	if (imx_check_flag(imx_pcie, IMX_PCIE_FLAG_HAS_PHY_RESET)) {
+		imx_pcie->pciephy_reset = devm_reset_control_get_exclusive(dev, "pciephy");
+		if (IS_ERR(imx_pcie->pciephy_reset))
+			return dev_err_probe(dev, PTR_ERR(imx_pcie->pciephy_reset),
 					     "Failed to get PCIEPHY reset control\n");
 	}
 
-	switch (imx6_pcie->drvdata->variant) {
+	switch (imx_pcie->drvdata->variant) {
 	case IMX8MQ:
 	case IMX8MQ_EP:
 	case IMX7D:
 		if (dbi_base->start == IMX8MQ_PCIE2_BASE_ADDR)
-			imx6_pcie->controller_id = 1;
+			imx_pcie->controller_id = 1;
 		break;
 	default:
 		break;
 	}
 
 	/* Grab turnoff reset */
-	imx6_pcie->turnoff_reset = devm_reset_control_get_optional_exclusive(dev, "turnoff");
-	if (IS_ERR(imx6_pcie->turnoff_reset)) {
+	imx_pcie->turnoff_reset = devm_reset_control_get_optional_exclusive(dev, "turnoff");
+	if (IS_ERR(imx_pcie->turnoff_reset)) {
 		dev_err(dev, "Failed to get TURNOFF reset control\n");
-		return PTR_ERR(imx6_pcie->turnoff_reset);
+		return PTR_ERR(imx_pcie->turnoff_reset);
 	}
 
-	if (imx6_pcie->drvdata->gpr) {
+	if (imx_pcie->drvdata->gpr) {
 	/* Grab GPR config register range */
-		imx6_pcie->iomuxc_gpr =
-			 syscon_regmap_lookup_by_compatible(imx6_pcie->drvdata->gpr);
-		if (IS_ERR(imx6_pcie->iomuxc_gpr))
-			return dev_err_probe(dev, PTR_ERR(imx6_pcie->iomuxc_gpr),
+		imx_pcie->iomuxc_gpr =
+			 syscon_regmap_lookup_by_compatible(imx_pcie->drvdata->gpr);
+		if (IS_ERR(imx_pcie->iomuxc_gpr))
+			return dev_err_probe(dev, PTR_ERR(imx_pcie->iomuxc_gpr),
 					     "unable to find iomuxc registers\n");
 	}
 
-	if (imx6_check_flag(imx6_pcie, IMX6_PCIE_FLAG_HAS_SERDES)) {
+	if (imx_check_flag(imx_pcie, IMX_PCIE_FLAG_HAS_SERDES)) {
 		void __iomem *off = devm_platform_ioremap_resource_byname(pdev, "app");
 
 		if (IS_ERR(off))
@@ -1358,59 +1395,59 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 			.reg_stride = 4,
 		};
 
-		imx6_pcie->iomuxc_gpr = devm_regmap_init_mmio(dev, off, &regmap_config);
-		if (IS_ERR(imx6_pcie->iomuxc_gpr))
-			return dev_err_probe(dev, PTR_ERR(imx6_pcie->iomuxc_gpr),
+		imx_pcie->iomuxc_gpr = devm_regmap_init_mmio(dev, off, &regmap_config);
+		if (IS_ERR(imx_pcie->iomuxc_gpr))
+			return dev_err_probe(dev, PTR_ERR(imx_pcie->iomuxc_gpr),
 					     "unable to find iomuxc registers\n");
 	}
 
 	/* Grab PCIe PHY Tx Settings */
 	if (of_property_read_u32(node, "fsl,tx-deemph-gen1",
-				 &imx6_pcie->tx_deemph_gen1))
-		imx6_pcie->tx_deemph_gen1 = 0;
+				 &imx_pcie->tx_deemph_gen1))
+		imx_pcie->tx_deemph_gen1 = 0;
 
 	if (of_property_read_u32(node, "fsl,tx-deemph-gen2-3p5db",
-				 &imx6_pcie->tx_deemph_gen2_3p5db))
-		imx6_pcie->tx_deemph_gen2_3p5db = 0;
+				 &imx_pcie->tx_deemph_gen2_3p5db))
+		imx_pcie->tx_deemph_gen2_3p5db = 0;
 
 	if (of_property_read_u32(node, "fsl,tx-deemph-gen2-6db",
-				 &imx6_pcie->tx_deemph_gen2_6db))
-		imx6_pcie->tx_deemph_gen2_6db = 20;
+				 &imx_pcie->tx_deemph_gen2_6db))
+		imx_pcie->tx_deemph_gen2_6db = 20;
 
 	if (of_property_read_u32(node, "fsl,tx-swing-full",
-				 &imx6_pcie->tx_swing_full))
-		imx6_pcie->tx_swing_full = 127;
+				 &imx_pcie->tx_swing_full))
+		imx_pcie->tx_swing_full = 127;
 
 	if (of_property_read_u32(node, "fsl,tx-swing-low",
-				 &imx6_pcie->tx_swing_low))
-		imx6_pcie->tx_swing_low = 127;
+				 &imx_pcie->tx_swing_low))
+		imx_pcie->tx_swing_low = 127;
 
 	/* Limit link speed */
-	pci->link_gen = 1;
-	of_property_read_u32(node, "fsl,max-link-speed", &pci->link_gen);
-
-	imx6_pcie->vpcie = devm_regulator_get_optional(&pdev->dev, "vpcie");
-	if (IS_ERR(imx6_pcie->vpcie)) {
-		if (PTR_ERR(imx6_pcie->vpcie) != -ENODEV)
-			return PTR_ERR(imx6_pcie->vpcie);
-		imx6_pcie->vpcie = NULL;
+	pci->max_link_speed = 1;
+	of_property_read_u32(node, "fsl,max-link-speed", &pci->max_link_speed);
+
+	imx_pcie->vpcie = devm_regulator_get_optional(&pdev->dev, "vpcie");
+	if (IS_ERR(imx_pcie->vpcie)) {
+		if (PTR_ERR(imx_pcie->vpcie) != -ENODEV)
+			return PTR_ERR(imx_pcie->vpcie);
+		imx_pcie->vpcie = NULL;
 	}
 
-	imx6_pcie->vph = devm_regulator_get_optional(&pdev->dev, "vph");
-	if (IS_ERR(imx6_pcie->vph)) {
-		if (PTR_ERR(imx6_pcie->vph) != -ENODEV)
-			return PTR_ERR(imx6_pcie->vph);
-		imx6_pcie->vph = NULL;
+	imx_pcie->vph = devm_regulator_get_optional(&pdev->dev, "vph");
+	if (IS_ERR(imx_pcie->vph)) {
+		if (PTR_ERR(imx_pcie->vph) != -ENODEV)
+			return PTR_ERR(imx_pcie->vph);
+		imx_pcie->vph = NULL;
 	}
 
-	platform_set_drvdata(pdev, imx6_pcie);
+	platform_set_drvdata(pdev, imx_pcie);
 
-	ret = imx6_pcie_attach_pd(dev);
+	ret = imx_pcie_attach_pd(dev);
 	if (ret)
 		return ret;
 
-	if (imx6_pcie->drvdata->mode == DW_PCIE_EP_TYPE) {
-		ret = imx6_add_pcie_ep(imx6_pcie, pdev);
+	if (imx_pcie->drvdata->mode == DW_PCIE_EP_TYPE) {
+		ret = imx_add_pcie_ep(imx_pcie, pdev);
 		if (ret < 0)
 			return ret;
 	} else {
@@ -1430,24 +1467,25 @@ static int imx6_pcie_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static void imx6_pcie_shutdown(struct platform_device *pdev)
+static void imx_pcie_shutdown(struct platform_device *pdev)
 {
-	struct imx6_pcie *imx6_pcie = platform_get_drvdata(pdev);
+	struct imx_pcie *imx_pcie = platform_get_drvdata(pdev);
 
 	/* bring down link, so bootloader gets clean state in case of reboot */
-	imx6_pcie_assert_core_reset(imx6_pcie);
+	imx_pcie_assert_core_reset(imx_pcie);
 }
 
 static const char * const imx6q_clks[] = {"pcie_bus", "pcie", "pcie_phy"};
 static const char * const imx8mm_clks[] = {"pcie_bus", "pcie", "pcie_aux"};
 static const char * const imx8mq_clks[] = {"pcie_bus", "pcie", "pcie_phy", "pcie_aux"};
 static const char * const imx6sx_clks[] = {"pcie_bus", "pcie", "pcie_phy", "pcie_inbound_axi"};
+static const char * const imx8q_clks[] = {"mstr", "slv", "dbi"};
 
-static const struct imx6_pcie_drvdata drvdata[] = {
+static const struct imx_pcie_drvdata drvdata[] = {
 	[IMX6Q] = {
 		.variant = IMX6Q,
-		.flags = IMX6_PCIE_FLAG_IMX6_PHY |
-			 IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE,
+		.flags = IMX_PCIE_FLAG_IMX_PHY |
+			 IMX_PCIE_FLAG_IMX_SPEED_CHANGE,
 		.dbi_length = 0x200,
 		.gpr = "fsl,imx6q-iomuxc-gpr",
 		.clk_names = imx6q_clks,
@@ -1456,13 +1494,15 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 		.ltssm_mask = IMX6Q_GPR12_PCIE_CTL_2,
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
-		.init_phy = imx6_pcie_init_phy,
+		.init_phy = imx_pcie_init_phy,
+		.enable_ref_clk = imx6q_pcie_enable_ref_clk,
+		.core_reset = imx6q_pcie_core_reset,
 	},
 	[IMX6SX] = {
 		.variant = IMX6SX,
-		.flags = IMX6_PCIE_FLAG_IMX6_PHY |
-			 IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE |
-			 IMX6_PCIE_FLAG_SUPPORTS_SUSPEND,
+		.flags = IMX_PCIE_FLAG_IMX_PHY |
+			 IMX_PCIE_FLAG_IMX_SPEED_CHANGE |
+			 IMX_PCIE_FLAG_SUPPORTS_SUSPEND,
 		.gpr = "fsl,imx6q-iomuxc-gpr",
 		.clk_names = imx6sx_clks,
 		.clks_cnt = ARRAY_SIZE(imx6sx_clks),
@@ -1471,12 +1511,14 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
 		.init_phy = imx6sx_pcie_init_phy,
+		.enable_ref_clk = imx6sx_pcie_enable_ref_clk,
+		.core_reset = imx6sx_pcie_core_reset,
 	},
 	[IMX6QP] = {
 		.variant = IMX6QP,
-		.flags = IMX6_PCIE_FLAG_IMX6_PHY |
-			 IMX6_PCIE_FLAG_IMX6_SPEED_CHANGE |
-			 IMX6_PCIE_FLAG_SUPPORTS_SUSPEND,
+		.flags = IMX_PCIE_FLAG_IMX_PHY |
+			 IMX_PCIE_FLAG_IMX_SPEED_CHANGE |
+			 IMX_PCIE_FLAG_SUPPORTS_SUSPEND,
 		.dbi_length = 0x200,
 		.gpr = "fsl,imx6q-iomuxc-gpr",
 		.clk_names = imx6q_clks,
@@ -1485,24 +1527,28 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 		.ltssm_mask = IMX6Q_GPR12_PCIE_CTL_2,
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
-		.init_phy = imx6_pcie_init_phy,
+		.init_phy = imx_pcie_init_phy,
+		.enable_ref_clk = imx6q_pcie_enable_ref_clk,
+		.core_reset = imx6qp_pcie_core_reset,
 	},
 	[IMX7D] = {
 		.variant = IMX7D,
-		.flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND |
-			 IMX6_PCIE_FLAG_HAS_APP_RESET |
-			 IMX6_PCIE_FLAG_HAS_PHY_RESET,
+		.flags = IMX_PCIE_FLAG_SUPPORTS_SUSPEND |
+			 IMX_PCIE_FLAG_HAS_APP_RESET |
+			 IMX_PCIE_FLAG_HAS_PHY_RESET,
 		.gpr = "fsl,imx7d-iomuxc-gpr",
 		.clk_names = imx6q_clks,
 		.clks_cnt = ARRAY_SIZE(imx6q_clks),
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
 		.init_phy = imx7d_pcie_init_phy,
+		.enable_ref_clk = imx7d_pcie_enable_ref_clk,
+		.core_reset = imx7d_pcie_core_reset,
 	},
 	[IMX8MQ] = {
 		.variant = IMX8MQ,
-		.flags = IMX6_PCIE_FLAG_HAS_APP_RESET |
-			 IMX6_PCIE_FLAG_HAS_PHY_RESET,
+		.flags = IMX_PCIE_FLAG_HAS_APP_RESET |
+			 IMX_PCIE_FLAG_HAS_PHY_RESET,
 		.gpr = "fsl,imx8mq-iomuxc-gpr",
 		.clk_names = imx8mq_clks,
 		.clks_cnt = ARRAY_SIZE(imx8mq_clks),
@@ -1511,32 +1557,42 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 		.mode_off[1] = IOMUXC_GPR12,
 		.mode_mask[1] = IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE,
 		.init_phy = imx8mq_pcie_init_phy,
+		.enable_ref_clk = imx8mm_pcie_enable_ref_clk,
 	},
 	[IMX8MM] = {
 		.variant = IMX8MM,
-		.flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND |
-			 IMX6_PCIE_FLAG_HAS_PHYDRV |
-			 IMX6_PCIE_FLAG_HAS_APP_RESET,
+		.flags = IMX_PCIE_FLAG_SUPPORTS_SUSPEND |
+			 IMX_PCIE_FLAG_HAS_PHYDRV |
+			 IMX_PCIE_FLAG_HAS_APP_RESET,
 		.gpr = "fsl,imx8mm-iomuxc-gpr",
 		.clk_names = imx8mm_clks,
 		.clks_cnt = ARRAY_SIZE(imx8mm_clks),
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
+		.enable_ref_clk = imx8mm_pcie_enable_ref_clk,
 	},
 	[IMX8MP] = {
 		.variant = IMX8MP,
-		.flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND |
-			 IMX6_PCIE_FLAG_HAS_PHYDRV |
-			 IMX6_PCIE_FLAG_HAS_APP_RESET,
+		.flags = IMX_PCIE_FLAG_SUPPORTS_SUSPEND |
+			 IMX_PCIE_FLAG_HAS_PHYDRV |
+			 IMX_PCIE_FLAG_HAS_APP_RESET,
 		.gpr = "fsl,imx8mp-iomuxc-gpr",
 		.clk_names = imx8mm_clks,
 		.clks_cnt = ARRAY_SIZE(imx8mm_clks),
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
+		.enable_ref_clk = imx8mm_pcie_enable_ref_clk,
+	},
+	[IMX8Q] = {
+		.variant = IMX8Q,
+		.flags = IMX_PCIE_FLAG_HAS_PHYDRV |
+			 IMX_PCIE_FLAG_CPU_ADDR_FIXUP,
+		.clk_names = imx8q_clks,
+		.clks_cnt = ARRAY_SIZE(imx8q_clks),
 	},
 	[IMX95] = {
 		.variant = IMX95,
-		.flags = IMX6_PCIE_FLAG_HAS_SERDES,
+		.flags = IMX_PCIE_FLAG_HAS_SERDES,
 		.clk_names = imx8mq_clks,
 		.clks_cnt = ARRAY_SIZE(imx8mq_clks),
 		.ltssm_off = IMX95_PE0_GEN_CTRL_3,
@@ -1547,8 +1603,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 	},
 	[IMX8MQ_EP] = {
 		.variant = IMX8MQ_EP,
-		.flags = IMX6_PCIE_FLAG_HAS_APP_RESET |
-			 IMX6_PCIE_FLAG_HAS_PHY_RESET,
+		.flags = IMX_PCIE_FLAG_HAS_APP_RESET |
+			 IMX_PCIE_FLAG_HAS_PHY_RESET,
 		.mode = DW_PCIE_EP_TYPE,
 		.gpr = "fsl,imx8mq-iomuxc-gpr",
 		.clk_names = imx8mq_clks,
@@ -1559,10 +1615,12 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 		.mode_mask[1] = IMX8MQ_GPR12_PCIE2_CTRL_DEVICE_TYPE,
 		.epc_features = &imx8m_pcie_epc_features,
 		.init_phy = imx8mq_pcie_init_phy,
+		.enable_ref_clk = imx8mm_pcie_enable_ref_clk,
 	},
 	[IMX8MM_EP] = {
 		.variant = IMX8MM_EP,
-		.flags = IMX6_PCIE_FLAG_HAS_PHYDRV,
+		.flags = IMX_PCIE_FLAG_HAS_APP_RESET |
+			 IMX_PCIE_FLAG_HAS_PHYDRV,
 		.mode = DW_PCIE_EP_TYPE,
 		.gpr = "fsl,imx8mm-iomuxc-gpr",
 		.clk_names = imx8mm_clks,
@@ -1570,10 +1628,12 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
 		.epc_features = &imx8m_pcie_epc_features,
+		.enable_ref_clk = imx8mm_pcie_enable_ref_clk,
 	},
 	[IMX8MP_EP] = {
 		.variant = IMX8MP_EP,
-		.flags = IMX6_PCIE_FLAG_HAS_PHYDRV,
+		.flags = IMX_PCIE_FLAG_HAS_APP_RESET |
+			 IMX_PCIE_FLAG_HAS_PHYDRV,
 		.mode = DW_PCIE_EP_TYPE,
 		.gpr = "fsl,imx8mp-iomuxc-gpr",
 		.clk_names = imx8mm_clks,
@@ -1581,11 +1641,12 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 		.mode_off[0] = IOMUXC_GPR12,
 		.mode_mask[0] = IMX6Q_GPR12_DEVICE_TYPE,
 		.epc_features = &imx8m_pcie_epc_features,
+		.enable_ref_clk = imx8mm_pcie_enable_ref_clk,
 	},
 	[IMX95_EP] = {
 		.variant = IMX95_EP,
-		.flags = IMX6_PCIE_FLAG_HAS_SERDES |
-			 IMX6_PCIE_FLAG_SUPPORT_64BIT,
+		.flags = IMX_PCIE_FLAG_HAS_SERDES |
+			 IMX_PCIE_FLAG_SUPPORT_64BIT,
 		.clk_names = imx8mq_clks,
 		.clks_cnt = ARRAY_SIZE(imx8mq_clks),
 		.ltssm_off = IMX95_PE0_GEN_CTRL_3,
@@ -1598,7 +1659,7 @@ static const struct imx6_pcie_drvdata drvdata[] = {
 	},
 };
 
-static const struct of_device_id imx6_pcie_of_match[] = {
+static const struct of_device_id imx_pcie_of_match[] = {
 	{ .compatible = "fsl,imx6q-pcie",  .data = &drvdata[IMX6Q],  },
 	{ .compatible = "fsl,imx6sx-pcie", .data = &drvdata[IMX6SX], },
 	{ .compatible = "fsl,imx6qp-pcie", .data = &drvdata[IMX6QP], },
@@ -1606,6 +1667,7 @@ static const struct of_device_id imx6_pcie_of_match[] = {
 	{ .compatible = "fsl,imx8mq-pcie", .data = &drvdata[IMX8MQ], },
 	{ .compatible = "fsl,imx8mm-pcie", .data = &drvdata[IMX8MM], },
 	{ .compatible = "fsl,imx8mp-pcie", .data = &drvdata[IMX8MP], },
+	{ .compatible = "fsl,imx8q-pcie", .data = &drvdata[IMX8Q], },
 	{ .compatible = "fsl,imx95-pcie", .data = &drvdata[IMX95], },
 	{ .compatible = "fsl,imx8mq-pcie-ep", .data = &drvdata[IMX8MQ_EP], },
 	{ .compatible = "fsl,imx8mm-pcie-ep", .data = &drvdata[IMX8MM_EP], },
@@ -1614,19 +1676,19 @@ static const struct of_device_id imx6_pcie_of_match[] = {
 	{},
 };
 
-static struct platform_driver imx6_pcie_driver = {
+static struct platform_driver imx_pcie_driver = {
 	.driver = {
 		.name	= "imx6q-pcie",
-		.of_match_table = imx6_pcie_of_match,
+		.of_match_table = imx_pcie_of_match,
 		.suppress_bind_attrs = true,
-		.pm = &imx6_pcie_pm_ops,
+		.pm = &imx_pcie_pm_ops,
 		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 	},
-	.probe    = imx6_pcie_probe,
-	.shutdown = imx6_pcie_shutdown,
+	.probe    = imx_pcie_probe,
+	.shutdown = imx_pcie_shutdown,
 };
 
-static void imx6_pcie_quirk(struct pci_dev *dev)
+static void imx_pcie_quirk(struct pci_dev *dev)
 {
 	struct pci_bus *bus = dev->bus;
 	struct dw_pcie_rp *pp = bus->sysdata;
@@ -1636,33 +1698,33 @@ static void imx6_pcie_quirk(struct pci_dev *dev)
 		return;
 
 	/* Make sure we only quirk devices associated with this driver */
-	if (bus->dev.parent->parent->driver != &imx6_pcie_driver.driver)
+	if (bus->dev.parent->parent->driver != &imx_pcie_driver.driver)
 		return;
 
 	if (pci_is_root_bus(bus)) {
 		struct dw_pcie *pci = to_dw_pcie_from_pp(pp);
-		struct imx6_pcie *imx6_pcie = to_imx6_pcie(pci);
+		struct imx_pcie *imx_pcie = to_imx_pcie(pci);
 
 		/*
 		 * Limit config length to avoid the kernel reading beyond
 		 * the register set and causing an abort on i.MX 6Quad
 		 */
-		if (imx6_pcie->drvdata->dbi_length) {
-			dev->cfg_size = imx6_pcie->drvdata->dbi_length;
+		if (imx_pcie->drvdata->dbi_length) {
+			dev->cfg_size = imx_pcie->drvdata->dbi_length;
 			dev_info(&dev->dev, "Limiting cfg_size to %d\n",
 					dev->cfg_size);
 		}
 	}
 }
 DECLARE_PCI_FIXUP_CLASS_HEADER(PCI_VENDOR_ID_SYNOPSYS, 0xabcd,
-			PCI_CLASS_BRIDGE_PCI, 8, imx6_pcie_quirk);
+			PCI_CLASS_BRIDGE_PCI, 8, imx_pcie_quirk);
 
-static int __init imx6_pcie_init(void)
+static int __init imx_pcie_init(void)
 {
 #ifdef CONFIG_ARM
 	struct device_node *np;
 
-	np = of_find_matching_node(NULL, imx6_pcie_of_match);
+	np = of_find_matching_node(NULL, imx_pcie_of_match);
 	if (!np)
 		return -ENODEV;
 	of_node_put(np);
@@ -1678,6 +1740,6 @@ static int __init imx6_pcie_init(void)
 			"external abort on non-linefetch");
 #endif
 
-	return platform_driver_register(&imx6_pcie_driver);
+	return platform_driver_register(&imx_pcie_driver);
 }
-device_initcall(imx6_pcie_init);
+device_initcall(imx_pcie_init);
diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
index 52c6420ae200..2219b1a866fa 100644
--- a/drivers/pci/controller/dwc/pci-keystone.c
+++ b/drivers/pci/controller/dwc/pci-keystone.c
@@ -189,12 +189,6 @@ static void ks_pcie_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 		(int)data->hwirq, msg->address_hi, msg->address_lo);
 }
 
-static int ks_pcie_msi_set_affinity(struct irq_data *irq_data,
-				    const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void ks_pcie_msi_mask(struct irq_data *data)
 {
 	struct dw_pcie_rp *pp = irq_data_get_irq_chip_data(data);
@@ -247,7 +241,6 @@ static struct irq_chip ks_pcie_msi_irq_chip = {
 	.name = "KEYSTONE-PCI-MSI",
 	.irq_ack = ks_pcie_msi_irq_ack,
 	.irq_compose_msi_msg = ks_pcie_compose_msi_msg,
-	.irq_set_affinity = ks_pcie_msi_set_affinity,
 	.irq_mask = ks_pcie_msi_mask,
 	.irq_unmask = ks_pcie_msi_unmask,
 };
@@ -577,7 +570,7 @@ static void ks_pcie_quirk(struct pci_dev *dev)
 	 */
 	if (pci_match_id(am6_pci_devids, bridge)) {
 		bridge_dev = pci_get_host_bridge_device(dev);
-		if (!bridge_dev && !bridge_dev->parent)
+		if (!bridge_dev || !bridge_dev->parent)
 			return;
 
 		ks_pcie = dev_get_drvdata(bridge_dev->parent);
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index a0822d5371bc..3e41865c7290 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -48,8 +48,9 @@ static struct irq_chip dw_pcie_msi_irq_chip = {
 };
 
 static struct msi_domain_info dw_pcie_msi_domain_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_PCI_MSIX | MSI_FLAG_MULTI_PCI_MSI),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX |
+		  MSI_FLAG_MULTI_PCI_MSI,
 	.chip	= &dw_pcie_msi_irq_chip,
 };
 
@@ -116,12 +117,6 @@ static void dw_pci_setup_msi_msg(struct irq_data *d, struct msi_msg *msg)
 		(int)d->hwirq, msg->address_hi, msg->address_lo);
 }
 
-static int dw_pci_msi_set_affinity(struct irq_data *d,
-				   const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void dw_pci_bottom_mask(struct irq_data *d)
 {
 	struct dw_pcie_rp *pp = irq_data_get_irq_chip_data(d);
@@ -177,7 +172,6 @@ static struct irq_chip dw_pci_msi_bottom_irq_chip = {
 	.name = "DWPCI-MSI",
 	.irq_ack = dw_pci_bottom_ack,
 	.irq_compose_msi_msg = dw_pci_setup_msi_msg,
-	.irq_set_affinity = dw_pci_msi_set_affinity,
 	.irq_mask = dw_pci_bottom_mask,
 	.irq_unmask = dw_pci_bottom_unmask,
 };
diff --git a/drivers/pci/controller/dwc/pcie-designware.c b/drivers/pci/controller/dwc/pcie-designware.c
index 1b5aba1f0c92..6d6cbc8b5b2c 100644
--- a/drivers/pci/controller/dwc/pcie-designware.c
+++ b/drivers/pci/controller/dwc/pcie-designware.c
@@ -112,6 +112,7 @@ int dw_pcie_get_resources(struct dw_pcie *pci)
 		pci->dbi_base = devm_pci_remap_cfg_resource(pci->dev, res);
 		if (IS_ERR(pci->dbi_base))
 			return PTR_ERR(pci->dbi_base);
+		pci->dbi_phys_addr = res->start;
 	}
 
 	/* DBI2 is mainly useful for the endpoint controller */
@@ -134,6 +135,7 @@ int dw_pcie_get_resources(struct dw_pcie *pci)
 			pci->atu_base = devm_ioremap_resource(pci->dev, res);
 			if (IS_ERR(pci->atu_base))
 				return PTR_ERR(pci->atu_base);
+			pci->atu_phys_addr = res->start;
 		} else {
 			pci->atu_base = pci->dbi_base + DEFAULT_DBI_ATU_OFFSET;
 		}
@@ -166,8 +168,8 @@ int dw_pcie_get_resources(struct dw_pcie *pci)
 			return ret;
 	}
 
-	if (pci->link_gen < 1)
-		pci->link_gen = of_pci_get_max_link_speed(np);
+	if (pci->max_link_speed < 1)
+		pci->max_link_speed = of_pci_get_max_link_speed(np);
 
 	of_property_read_u32(np, "num-lanes", &pci->num_lanes);
 
@@ -687,16 +689,27 @@ void dw_pcie_upconfig_setup(struct dw_pcie *pci)
 }
 EXPORT_SYMBOL_GPL(dw_pcie_upconfig_setup);
 
-static void dw_pcie_link_set_max_speed(struct dw_pcie *pci, u32 link_gen)
+static void dw_pcie_link_set_max_speed(struct dw_pcie *pci)
 {
 	u32 cap, ctrl2, link_speed;
 	u8 offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
 
 	cap = dw_pcie_readl_dbi(pci, offset + PCI_EXP_LNKCAP);
+
+	/*
+	 * Even if the platform doesn't want to limit the maximum link speed,
+	 * just cache the hardware default value so that the vendor drivers can
+	 * use it to do any link specific configuration.
+	 */
+	if (pci->max_link_speed < 1) {
+		pci->max_link_speed = FIELD_GET(PCI_EXP_LNKCAP_SLS, cap);
+		return;
+	}
+
 	ctrl2 = dw_pcie_readl_dbi(pci, offset + PCI_EXP_LNKCTL2);
 	ctrl2 &= ~PCI_EXP_LNKCTL2_TLS;
 
-	switch (pcie_link_speed[link_gen]) {
+	switch (pcie_link_speed[pci->max_link_speed]) {
 	case PCIE_SPEED_2_5GT:
 		link_speed = PCI_EXP_LNKCTL2_TLS_2_5GT;
 		break;
@@ -1058,8 +1071,7 @@ void dw_pcie_setup(struct dw_pcie *pci)
 {
 	u32 val;
 
-	if (pci->link_gen > 0)
-		dw_pcie_link_set_max_speed(pci, pci->link_gen);
+	dw_pcie_link_set_max_speed(pci);
 
 	/* Configure Gen1 N_FTS */
 	if (pci->n_fts[0]) {
diff --git a/drivers/pci/controller/dwc/pcie-designware.h b/drivers/pci/controller/dwc/pcie-designware.h
index 53c4c8f399c8..347ab74ac35a 100644
--- a/drivers/pci/controller/dwc/pcie-designware.h
+++ b/drivers/pci/controller/dwc/pcie-designware.h
@@ -125,6 +125,19 @@
 #define GEN3_RELATED_OFF_GEN3_EQ_DISABLE	BIT(16)
 #define GEN3_RELATED_OFF_RATE_SHADOW_SEL_SHIFT	24
 #define GEN3_RELATED_OFF_RATE_SHADOW_SEL_MASK	GENMASK(25, 24)
+#define GEN3_RELATED_OFF_RATE_SHADOW_SEL_16_0GT	0x1
+
+#define GEN3_EQ_CONTROL_OFF			0x8A8
+#define GEN3_EQ_CONTROL_OFF_FB_MODE		GENMASK(3, 0)
+#define GEN3_EQ_CONTROL_OFF_PHASE23_EXIT_MODE	BIT(4)
+#define GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC	GENMASK(23, 8)
+#define GEN3_EQ_CONTROL_OFF_FOM_INC_INITIAL_EVAL	BIT(24)
+
+#define GEN3_EQ_FB_MODE_DIR_CHANGE_OFF		0x8AC
+#define GEN3_EQ_FMDC_T_MIN_PHASE23		GENMASK(4, 0)
+#define GEN3_EQ_FMDC_N_EVALS			GENMASK(9, 5)
+#define GEN3_EQ_FMDC_MAX_PRE_CUSROR_DELTA	GENMASK(13, 10)
+#define GEN3_EQ_FMDC_MAX_POST_CUSROR_DELTA	GENMASK(17, 14)
 
 #define PCIE_PORT_MULTI_LANE_CTRL	0x8C0
 #define PORT_MLTI_UPCFG_SUPPORT		BIT(7)
@@ -198,6 +211,24 @@
 #define PCIE_PL_CHK_REG_ERR_ADDR			0xB28
 
 /*
+ * 16.0 GT/s (Gen 4) lane margining register definitions
+ */
+#define GEN4_LANE_MARGINING_1_OFF		0xB80
+#define MARGINING_MAX_VOLTAGE_OFFSET		GENMASK(29, 24)
+#define MARGINING_NUM_VOLTAGE_STEPS		GENMASK(22, 16)
+#define MARGINING_MAX_TIMING_OFFSET		GENMASK(13, 8)
+#define MARGINING_NUM_TIMING_STEPS		GENMASK(5, 0)
+
+#define GEN4_LANE_MARGINING_2_OFF		0xB84
+#define MARGINING_IND_ERROR_SAMPLER		BIT(28)
+#define MARGINING_SAMPLE_REPORTING_METHOD	BIT(27)
+#define MARGINING_IND_LEFT_RIGHT_TIMING		BIT(26)
+#define MARGINING_IND_UP_DOWN_VOLTAGE		BIT(25)
+#define MARGINING_VOLTAGE_SUPPORTED		BIT(24)
+#define MARGINING_MAXLANES			GENMASK(20, 16)
+#define MARGINING_SAMPLE_RATE_TIMING		GENMASK(13, 8)
+#define MARGINING_SAMPLE_RATE_VOLTAGE		GENMASK(5, 0)
+/*
  * iATU Unroll-specific register definitions
  * From 4.80 core version the address translation will be made by unroll
  */
@@ -407,8 +438,10 @@ struct dw_pcie_ops {
 struct dw_pcie {
 	struct device		*dev;
 	void __iomem		*dbi_base;
+	resource_size_t		dbi_phys_addr;
 	void __iomem		*dbi_base2;
 	void __iomem		*atu_base;
+	resource_size_t		atu_phys_addr;
 	size_t			atu_size;
 	u32			num_ib_windows;
 	u32			num_ob_windows;
@@ -421,7 +454,7 @@ struct dw_pcie {
 	u32			type;
 	unsigned long		caps;
 	int			num_lanes;
-	int			link_gen;
+	int			max_link_speed;
 	u8			n_fts[2];
 	struct dw_edma_chip	edma;
 	struct clk_bulk_data	app_clks[DW_PCIE_NUM_APP_CLKS];
diff --git a/drivers/pci/controller/dwc/pcie-intel-gw.c b/drivers/pci/controller/dwc/pcie-intel-gw.c
index acbe4f6d3291..676d2aba4fbd 100644
--- a/drivers/pci/controller/dwc/pcie-intel-gw.c
+++ b/drivers/pci/controller/dwc/pcie-intel-gw.c
@@ -132,7 +132,7 @@ static void intel_pcie_link_setup(struct intel_pcie *pcie)
 
 static void intel_pcie_init_n_fts(struct dw_pcie *pci)
 {
-	switch (pci->link_gen) {
+	switch (pci->max_link_speed) {
 	case 3:
 		pci->n_fts[1] = PORT_AFR_N_FTS_GEN3;
 		break;
@@ -252,7 +252,7 @@ static int intel_pcie_wait_l2(struct intel_pcie *pcie)
 	int ret;
 	struct dw_pcie *pci = &pcie->pci;
 
-	if (pci->link_gen < 3)
+	if (pci->max_link_speed < 3)
 		return 0;
 
 	/* Send PME_TURN_OFF message */
diff --git a/drivers/pci/controller/dwc/pcie-kirin.c b/drivers/pci/controller/dwc/pcie-kirin.c
index 0a29136491b8..85a2c77b1835 100644
--- a/drivers/pci/controller/dwc/pcie-kirin.c
+++ b/drivers/pci/controller/dwc/pcie-kirin.c
@@ -420,11 +420,11 @@ static int kirin_pcie_parse_port(struct kirin_pcie *pcie,
 						     "unable to get a valid reset gpio\n");
 			}
 
-			pcie->num_slots++;
-			if (pcie->num_slots > MAX_PCI_SLOTS) {
+			if (pcie->num_slots + 1 >= MAX_PCI_SLOTS) {
 				dev_err(dev, "Too many PCI slots!\n");
 				return -EINVAL;
 			}
+			pcie->num_slots++;
 
 			ret = of_pci_get_devfn(child);
 			if (ret < 0) {
diff --git a/drivers/pci/controller/dwc/pcie-qcom-common.c b/drivers/pci/controller/dwc/pcie-qcom-common.c
new file mode 100644
index 000000000000..3aad19b56da8
--- /dev/null
+++ b/drivers/pci/controller/dwc/pcie-qcom-common.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/pci.h>
+
+#include "pcie-designware.h"
+#include "pcie-qcom-common.h"
+
+void qcom_pcie_common_set_16gt_equalization(struct dw_pcie *pci)
+{
+	u32 reg;
+
+	/*
+	 * GEN3_RELATED_OFF register is repurposed to apply equalization
+	 * settings at various data transmission rates through registers namely
+	 * GEN3_EQ_*. The RATE_SHADOW_SEL bit field of GEN3_RELATED_OFF
+	 * determines the data rate for which these equalization settings are
+	 * applied.
+	 */
+	reg = dw_pcie_readl_dbi(pci, GEN3_RELATED_OFF);
+	reg &= ~GEN3_RELATED_OFF_GEN3_ZRXDC_NONCOMPL;
+	reg &= ~GEN3_RELATED_OFF_RATE_SHADOW_SEL_MASK;
+	reg |= FIELD_PREP(GEN3_RELATED_OFF_RATE_SHADOW_SEL_MASK,
+			  GEN3_RELATED_OFF_RATE_SHADOW_SEL_16_0GT);
+	dw_pcie_writel_dbi(pci, GEN3_RELATED_OFF, reg);
+
+	reg = dw_pcie_readl_dbi(pci, GEN3_EQ_FB_MODE_DIR_CHANGE_OFF);
+	reg &= ~(GEN3_EQ_FMDC_T_MIN_PHASE23 |
+		GEN3_EQ_FMDC_N_EVALS |
+		GEN3_EQ_FMDC_MAX_PRE_CUSROR_DELTA |
+		GEN3_EQ_FMDC_MAX_POST_CUSROR_DELTA);
+	reg |= FIELD_PREP(GEN3_EQ_FMDC_T_MIN_PHASE23, 0x1) |
+		FIELD_PREP(GEN3_EQ_FMDC_N_EVALS, 0xd) |
+		FIELD_PREP(GEN3_EQ_FMDC_MAX_PRE_CUSROR_DELTA, 0x5) |
+		FIELD_PREP(GEN3_EQ_FMDC_MAX_POST_CUSROR_DELTA, 0x5);
+	dw_pcie_writel_dbi(pci, GEN3_EQ_FB_MODE_DIR_CHANGE_OFF, reg);
+
+	reg = dw_pcie_readl_dbi(pci, GEN3_EQ_CONTROL_OFF);
+	reg &= ~(GEN3_EQ_CONTROL_OFF_FB_MODE |
+		GEN3_EQ_CONTROL_OFF_PHASE23_EXIT_MODE |
+		GEN3_EQ_CONTROL_OFF_FOM_INC_INITIAL_EVAL |
+		GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC);
+	dw_pcie_writel_dbi(pci, GEN3_EQ_CONTROL_OFF, reg);
+}
+EXPORT_SYMBOL_GPL(qcom_pcie_common_set_16gt_equalization);
+
+void qcom_pcie_common_set_16gt_lane_margining(struct dw_pcie *pci)
+{
+	u32 reg;
+
+	reg = dw_pcie_readl_dbi(pci, GEN4_LANE_MARGINING_1_OFF);
+	reg &= ~(MARGINING_MAX_VOLTAGE_OFFSET |
+		MARGINING_NUM_VOLTAGE_STEPS |
+		MARGINING_MAX_TIMING_OFFSET |
+		MARGINING_NUM_TIMING_STEPS);
+	reg |= FIELD_PREP(MARGINING_MAX_VOLTAGE_OFFSET, 0x24) |
+		FIELD_PREP(MARGINING_NUM_VOLTAGE_STEPS, 0x78) |
+		FIELD_PREP(MARGINING_MAX_TIMING_OFFSET, 0x32) |
+		FIELD_PREP(MARGINING_NUM_TIMING_STEPS, 0x10);
+	dw_pcie_writel_dbi(pci, GEN4_LANE_MARGINING_1_OFF, reg);
+
+	reg = dw_pcie_readl_dbi(pci, GEN4_LANE_MARGINING_2_OFF);
+	reg |= MARGINING_IND_ERROR_SAMPLER |
+		MARGINING_SAMPLE_REPORTING_METHOD |
+		MARGINING_IND_LEFT_RIGHT_TIMING |
+		MARGINING_VOLTAGE_SUPPORTED;
+	reg &= ~(MARGINING_IND_UP_DOWN_VOLTAGE |
+		MARGINING_MAXLANES |
+		MARGINING_SAMPLE_RATE_TIMING |
+		MARGINING_SAMPLE_RATE_VOLTAGE);
+	reg |= FIELD_PREP(MARGINING_MAXLANES, pci->num_lanes) |
+		FIELD_PREP(MARGINING_SAMPLE_RATE_TIMING, 0x3f) |
+		FIELD_PREP(MARGINING_SAMPLE_RATE_VOLTAGE, 0x3f);
+	dw_pcie_writel_dbi(pci, GEN4_LANE_MARGINING_2_OFF, reg);
+}
+EXPORT_SYMBOL_GPL(qcom_pcie_common_set_16gt_lane_margining);
diff --git a/drivers/pci/controller/dwc/pcie-qcom-common.h b/drivers/pci/controller/dwc/pcie-qcom-common.h
new file mode 100644
index 000000000000..7d88d29e4766
--- /dev/null
+++ b/drivers/pci/controller/dwc/pcie-qcom-common.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _PCIE_QCOM_COMMON_H
+#define _PCIE_QCOM_COMMON_H
+
+struct dw_pcie;
+
+void qcom_pcie_common_set_16gt_equalization(struct dw_pcie *pci);
+void qcom_pcie_common_set_16gt_lane_margining(struct dw_pcie *pci);
+
+#endif
diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c
index a9b263f749b6..e588fcc54589 100644
--- a/drivers/pci/controller/dwc/pcie-qcom-ep.c
+++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c
@@ -25,6 +25,7 @@
 
 #include "../../pci.h"
 #include "pcie-designware.h"
+#include "pcie-qcom-common.h"
 
 /* PARF registers */
 #define PARF_SYS_CTRL				0x00
@@ -498,6 +499,11 @@ static int qcom_pcie_perst_deassert(struct dw_pcie *pci)
 		goto err_disable_resources;
 	}
 
+	if (pcie_link_speed[pci->max_link_speed] == PCIE_SPEED_16_0GT) {
+		qcom_pcie_common_set_16gt_equalization(pci);
+		qcom_pcie_common_set_16gt_lane_margining(pci);
+	}
+
 	/*
 	 * The physical address of the MMIO region which is exposed as the BAR
 	 * should be written to MHI BASE registers.
@@ -659,11 +665,9 @@ static irqreturn_t qcom_pcie_ep_global_irq_thread(int irq, void *data)
 	struct dw_pcie *pci = &pcie_ep->pci;
 	struct device *dev = pci->dev;
 	u32 status = readl_relaxed(pcie_ep->parf + PARF_INT_ALL_STATUS);
-	u32 mask = readl_relaxed(pcie_ep->parf + PARF_INT_ALL_MASK);
 	u32 dstate, val;
 
 	writel_relaxed(status, pcie_ep->parf + PARF_INT_ALL_CLEAR);
-	status &= mask;
 
 	if (FIELD_GET(PARF_INT_ALL_LINK_DOWN, status)) {
 		dev_dbg(dev, "Received Linkdown event\n");
@@ -693,7 +697,8 @@ static irqreturn_t qcom_pcie_ep_global_irq_thread(int irq, void *data)
 		dw_pcie_ep_linkup(&pci->ep);
 		pcie_ep->link_status = QCOM_PCIE_EP_LINK_UP;
 	} else {
-		dev_err(dev, "Received unknown event: %d\n", status);
+		dev_WARN_ONCE(dev, 1, "Received unknown event. INT_STATUS: 0x%08x\n",
+			      status);
 	}
 
 	return IRQ_HANDLED;
@@ -724,8 +729,15 @@ static irqreturn_t qcom_pcie_ep_perst_irq_thread(int irq, void *data)
 static int qcom_pcie_ep_enable_irq_resources(struct platform_device *pdev,
 					     struct qcom_pcie_ep *pcie_ep)
 {
+	struct device *dev = pcie_ep->pci.dev;
+	char *name;
 	int ret;
 
+	name = devm_kasprintf(dev, GFP_KERNEL, "qcom_pcie_ep_global_irq%d",
+			      pcie_ep->pci.ep.epc->domain_nr);
+	if (!name)
+		return -ENOMEM;
+
 	pcie_ep->global_irq = platform_get_irq_byname(pdev, "global");
 	if (pcie_ep->global_irq < 0)
 		return pcie_ep->global_irq;
@@ -733,18 +745,23 @@ static int qcom_pcie_ep_enable_irq_resources(struct platform_device *pdev,
 	ret = devm_request_threaded_irq(&pdev->dev, pcie_ep->global_irq, NULL,
 					qcom_pcie_ep_global_irq_thread,
 					IRQF_ONESHOT,
-					"global_irq", pcie_ep);
+					name, pcie_ep);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to request Global IRQ\n");
 		return ret;
 	}
 
+	name = devm_kasprintf(dev, GFP_KERNEL, "qcom_pcie_ep_perst_irq%d",
+			      pcie_ep->pci.ep.epc->domain_nr);
+	if (!name)
+		return -ENOMEM;
+
 	pcie_ep->perst_irq = gpiod_to_irq(pcie_ep->reset);
 	irq_set_status_flags(pcie_ep->perst_irq, IRQ_NOAUTOEN);
 	ret = devm_request_threaded_irq(&pdev->dev, pcie_ep->perst_irq, NULL,
 					qcom_pcie_ep_perst_irq_thread,
 					IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
-					"perst_irq", pcie_ep);
+					name, pcie_ep);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to request PERST IRQ\n");
 		disable_irq(pcie_ep->global_irq);
@@ -858,21 +875,15 @@ static int qcom_pcie_ep_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	ret = qcom_pcie_enable_resources(pcie_ep);
-	if (ret) {
-		dev_err(dev, "Failed to enable resources: %d\n", ret);
-		return ret;
-	}
-
 	ret = dw_pcie_ep_init(&pcie_ep->pci.ep);
 	if (ret) {
 		dev_err(dev, "Failed to initialize endpoint: %d\n", ret);
-		goto err_disable_resources;
+		return ret;
 	}
 
 	ret = qcom_pcie_ep_enable_irq_resources(pdev, pcie_ep);
 	if (ret)
-		goto err_disable_resources;
+		goto err_ep_deinit;
 
 	name = devm_kasprintf(dev, GFP_KERNEL, "%pOFP", dev->of_node);
 	if (!name) {
@@ -889,8 +900,8 @@ err_disable_irqs:
 	disable_irq(pcie_ep->global_irq);
 	disable_irq(pcie_ep->perst_irq);
 
-err_disable_resources:
-	qcom_pcie_disable_resources(pcie_ep);
+err_ep_deinit:
+	dw_pcie_ep_deinit(&pcie_ep->pci.ep);
 
 	return ret;
 }
diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 6f953e32d990..ef44a82be058 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -35,6 +35,7 @@
 
 #include "../../pci.h"
 #include "pcie-designware.h"
+#include "pcie-qcom-common.h"
 
 /* PARF registers */
 #define PARF_SYS_CTRL				0x00
@@ -45,15 +46,24 @@
 #define PARF_PHY_REFCLK				0x4c
 #define PARF_CONFIG_BITS			0x50
 #define PARF_DBI_BASE_ADDR			0x168
+#define PARF_SLV_ADDR_SPACE_SIZE		0x16c
 #define PARF_MHI_CLOCK_RESET_CTRL		0x174
 #define PARF_AXI_MSTR_WR_ADDR_HALT		0x178
 #define PARF_AXI_MSTR_WR_ADDR_HALT_V2		0x1a8
 #define PARF_Q2A_FLUSH				0x1ac
 #define PARF_LTSSM				0x1b0
+#define PARF_INT_ALL_STATUS			0x224
+#define PARF_INT_ALL_CLEAR			0x228
+#define PARF_INT_ALL_MASK			0x22c
 #define PARF_SID_OFFSET				0x234
 #define PARF_BDF_TRANSLATE_CFG			0x24c
-#define PARF_SLV_ADDR_SPACE_SIZE		0x358
+#define PARF_DBI_BASE_ADDR_V2			0x350
+#define PARF_DBI_BASE_ADDR_V2_HI		0x354
+#define PARF_SLV_ADDR_SPACE_SIZE_V2		0x358
+#define PARF_SLV_ADDR_SPACE_SIZE_V2_HI		0x35c
 #define PARF_NO_SNOOP_OVERIDE			0x3d4
+#define PARF_ATU_BASE_ADDR			0x634
+#define PARF_ATU_BASE_ADDR_HI			0x638
 #define PARF_DEVICE_TYPE			0x1000
 #define PARF_BDF_TO_SID_TABLE_N			0x2000
 #define PARF_BDF_TO_SID_CFG			0x2c00
@@ -108,7 +118,7 @@
 #define PHY_RX0_EQ(x)				FIELD_PREP(GENMASK(26, 24), x)
 
 /* PARF_SLV_ADDR_SPACE_SIZE register value */
-#define SLV_ADDR_SPACE_SZ			0x10000000
+#define SLV_ADDR_SPACE_SZ			0x80000000
 
 /* PARF_MHI_CLOCK_RESET_CTRL register fields */
 #define AHB_CLK_EN				BIT(0)
@@ -121,6 +131,9 @@
 /* PARF_LTSSM register fields */
 #define LTSSM_EN				BIT(8)
 
+/* PARF_INT_ALL_{STATUS/CLEAR/MASK} register fields */
+#define PARF_INT_ALL_LINK_UP			BIT(13)
+
 /* PARF_NO_SNOOP_OVERIDE register fields */
 #define WR_NO_SNOOP_OVERIDE_EN			BIT(1)
 #define RD_NO_SNOOP_OVERIDE_EN			BIT(3)
@@ -284,6 +297,11 @@ static int qcom_pcie_start_link(struct dw_pcie *pci)
 {
 	struct qcom_pcie *pcie = to_qcom_pcie(pci);
 
+	if (pcie_link_speed[pci->max_link_speed] == PCIE_SPEED_16_0GT) {
+		qcom_pcie_common_set_16gt_equalization(pci);
+		qcom_pcie_common_set_16gt_lane_margining(pci);
+	}
+
 	/* Enable Link Training state machine */
 	if (pcie->cfg->ops->ltssm_enable)
 		pcie->cfg->ops->ltssm_enable(pcie);
@@ -325,6 +343,50 @@ static void qcom_pcie_clear_hpc(struct dw_pcie *pci)
 	dw_pcie_dbi_ro_wr_dis(pci);
 }
 
+static void qcom_pcie_configure_dbi_base(struct qcom_pcie *pcie)
+{
+	struct dw_pcie *pci = pcie->pci;
+
+	if (pci->dbi_phys_addr) {
+		/*
+		 * PARF_DBI_BASE_ADDR register is in CPU domain and require to
+		 * be programmed with CPU physical address.
+		 */
+		writel(lower_32_bits(pci->dbi_phys_addr), pcie->parf +
+							PARF_DBI_BASE_ADDR);
+		writel(SLV_ADDR_SPACE_SZ, pcie->parf +
+						PARF_SLV_ADDR_SPACE_SIZE);
+	}
+}
+
+static void qcom_pcie_configure_dbi_atu_base(struct qcom_pcie *pcie)
+{
+	struct dw_pcie *pci = pcie->pci;
+
+	if (pci->dbi_phys_addr) {
+		/*
+		 * PARF_DBI_BASE_ADDR_V2 and PARF_ATU_BASE_ADDR registers are
+		 * in CPU domain and require to be programmed with CPU
+		 * physical addresses.
+		 */
+		writel(lower_32_bits(pci->dbi_phys_addr), pcie->parf +
+							PARF_DBI_BASE_ADDR_V2);
+		writel(upper_32_bits(pci->dbi_phys_addr), pcie->parf +
+						PARF_DBI_BASE_ADDR_V2_HI);
+
+		if (pci->atu_phys_addr) {
+			writel(lower_32_bits(pci->atu_phys_addr), pcie->parf +
+							PARF_ATU_BASE_ADDR);
+			writel(upper_32_bits(pci->atu_phys_addr), pcie->parf +
+							PARF_ATU_BASE_ADDR_HI);
+		}
+
+		writel(0x0, pcie->parf + PARF_SLV_ADDR_SPACE_SIZE_V2);
+		writel(SLV_ADDR_SPACE_SZ, pcie->parf +
+					PARF_SLV_ADDR_SPACE_SIZE_V2_HI);
+	}
+}
+
 static void qcom_pcie_2_1_0_ltssm_enable(struct qcom_pcie *pcie)
 {
 	u32 val;
@@ -541,8 +603,7 @@ err_assert_reset:
 
 static int qcom_pcie_post_init_1_0_0(struct qcom_pcie *pcie)
 {
-	/* change DBI base address */
-	writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
+	qcom_pcie_configure_dbi_base(pcie);
 
 	if (IS_ENABLED(CONFIG_PCI_MSI)) {
 		u32 val = readl(pcie->parf + PARF_AXI_MSTR_WR_ADDR_HALT);
@@ -629,8 +690,7 @@ static int qcom_pcie_post_init_2_3_2(struct qcom_pcie *pcie)
 	val &= ~PHY_TEST_PWR_DOWN;
 	writel(val, pcie->parf + PARF_PHY_CTRL);
 
-	/* change DBI base address */
-	writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
+	qcom_pcie_configure_dbi_base(pcie);
 
 	/* MAC PHY_POWERDOWN MUX DISABLE  */
 	val = readl(pcie->parf + PARF_SYS_CTRL);
@@ -812,13 +872,11 @@ static int qcom_pcie_post_init_2_3_3(struct qcom_pcie *pcie)
 	u16 offset = dw_pcie_find_capability(pci, PCI_CAP_ID_EXP);
 	u32 val;
 
-	writel(SLV_ADDR_SPACE_SZ, pcie->parf + PARF_SLV_ADDR_SPACE_SIZE);
-
 	val = readl(pcie->parf + PARF_PHY_CTRL);
 	val &= ~PHY_TEST_PWR_DOWN;
 	writel(val, pcie->parf + PARF_PHY_CTRL);
 
-	writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
+	qcom_pcie_configure_dbi_atu_base(pcie);
 
 	writel(MST_WAKEUP_EN | SLV_WAKEUP_EN | MSTR_ACLK_CGC_DIS
 		| SLV_ACLK_CGC_DIS | CORE_CLK_CGC_DIS |
@@ -914,8 +972,7 @@ static int qcom_pcie_init_2_7_0(struct qcom_pcie *pcie)
 	val &= ~PHY_TEST_PWR_DOWN;
 	writel(val, pcie->parf + PARF_PHY_CTRL);
 
-	/* change DBI base address */
-	writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
+	qcom_pcie_configure_dbi_atu_base(pcie);
 
 	/* MAC PHY_POWERDOWN MUX DISABLE  */
 	val = readl(pcie->parf + PARF_SYS_CTRL);
@@ -1124,14 +1181,11 @@ static int qcom_pcie_post_init_2_9_0(struct qcom_pcie *pcie)
 	u32 val;
 	int i;
 
-	writel(SLV_ADDR_SPACE_SZ,
-		pcie->parf + PARF_SLV_ADDR_SPACE_SIZE);
-
 	val = readl(pcie->parf + PARF_PHY_CTRL);
 	val &= ~PHY_TEST_PWR_DOWN;
 	writel(val, pcie->parf + PARF_PHY_CTRL);
 
-	writel(0, pcie->parf + PARF_DBI_BASE_ADDR);
+	qcom_pcie_configure_dbi_atu_base(pcie);
 
 	writel(DEVICE_TYPE_RC, pcie->parf + PARF_DEVICE_TYPE);
 	writel(BYPASS | MSTR_AXI_CLK_EN | AHB_CLK_EN,
@@ -1489,6 +1543,29 @@ static void qcom_pcie_init_debugfs(struct qcom_pcie *pcie)
 				    qcom_pcie_link_transition_count);
 }
 
+static irqreturn_t qcom_pcie_global_irq_thread(int irq, void *data)
+{
+	struct qcom_pcie *pcie = data;
+	struct dw_pcie_rp *pp = &pcie->pci->pp;
+	struct device *dev = pcie->pci->dev;
+	u32 status = readl_relaxed(pcie->parf + PARF_INT_ALL_STATUS);
+
+	writel_relaxed(status, pcie->parf + PARF_INT_ALL_CLEAR);
+
+	if (FIELD_GET(PARF_INT_ALL_LINK_UP, status)) {
+		dev_dbg(dev, "Received Link up event. Starting enumeration!\n");
+		/* Rescan the bus to enumerate endpoint devices */
+		pci_lock_rescan_remove();
+		pci_rescan_bus(pp->bridge->bus);
+		pci_unlock_rescan_remove();
+	} else {
+		dev_WARN_ONCE(dev, 1, "Received unknown event. INT_STATUS: 0x%08x\n",
+			      status);
+	}
+
+	return IRQ_HANDLED;
+}
+
 static int qcom_pcie_probe(struct platform_device *pdev)
 {
 	const struct qcom_pcie_cfg *pcie_cfg;
@@ -1499,7 +1576,8 @@ static int qcom_pcie_probe(struct platform_device *pdev)
 	struct dw_pcie_rp *pp;
 	struct resource *res;
 	struct dw_pcie *pci;
-	int ret;
+	int ret, irq;
+	char *name;
 
 	pcie_cfg = of_device_get_match_data(dev);
 	if (!pcie_cfg || !pcie_cfg->ops) {
@@ -1620,6 +1698,27 @@ static int qcom_pcie_probe(struct platform_device *pdev)
 		goto err_phy_exit;
 	}
 
+	name = devm_kasprintf(dev, GFP_KERNEL, "qcom_pcie_global_irq%d",
+			      pci_domain_nr(pp->bridge->bus));
+	if (!name) {
+		ret = -ENOMEM;
+		goto err_host_deinit;
+	}
+
+	irq = platform_get_irq_byname_optional(pdev, "global");
+	if (irq > 0) {
+		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+						qcom_pcie_global_irq_thread,
+						IRQF_ONESHOT, name, pcie);
+		if (ret) {
+			dev_err_probe(&pdev->dev, ret,
+				      "Failed to request Global IRQ\n");
+			goto err_host_deinit;
+		}
+
+		writel_relaxed(PARF_INT_ALL_LINK_UP, pcie->parf + PARF_INT_ALL_MASK);
+	}
+
 	qcom_pcie_icc_opp_update(pcie);
 
 	if (pcie->mhi)
@@ -1627,6 +1726,8 @@ static int qcom_pcie_probe(struct platform_device *pdev)
 
 	return 0;
 
+err_host_deinit:
+	dw_pcie_host_deinit(pp);
 err_phy_exit:
 	phy_exit(pcie->phy);
 err_pm_runtime_put:
diff --git a/drivers/pci/controller/dwc/pcie-rcar-gen4.c b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
index f0f3ebd1a033..3a5511c3f7d9 100644
--- a/drivers/pci/controller/dwc/pcie-rcar-gen4.c
+++ b/drivers/pci/controller/dwc/pcie-rcar-gen4.c
@@ -141,10 +141,10 @@ static int rcar_gen4_pcie_start_link(struct dw_pcie *dw)
 	}
 
 	/*
-	 * Require direct speed change with retrying here if the link_gen is
-	 * PCIe Gen2 or higher.
+	 * Require direct speed change with retrying here if the max_link_speed
+	 * is PCIe Gen2 or higher.
 	 */
-	changes = min_not_zero(dw->link_gen, RCAR_MAX_LINK_SPEED) - 1;
+	changes = min_not_zero(dw->max_link_speed, RCAR_MAX_LINK_SPEED) - 1;
 
 	/*
 	 * Since dw_pcie_setup_rc() sets it once, PCIe Gen2 will be trained.
@@ -606,7 +606,12 @@ static int rcar_gen4_pcie_reg_test_bit(struct rcar_gen4_pcie *rcar,
 static int rcar_gen4_pcie_download_phy_firmware(struct rcar_gen4_pcie *rcar)
 {
 	/* The check_addr values are magical numbers in the datasheet */
-	const u32 check_addr[] = { 0x00101018, 0x00101118, 0x00101021, 0x00101121};
+	static const u32 check_addr[] = {
+		0x00101018,
+		0x00101118,
+		0x00101021,
+		0x00101121,
+	};
 	struct dw_pcie *dw = &rcar->dw;
 	const struct firmware *fw;
 	unsigned int i, timeout;
diff --git a/drivers/pci/controller/dwc/pcie-spear13xx.c b/drivers/pci/controller/dwc/pcie-spear13xx.c
index 201dced209f0..ff986ced56b2 100644
--- a/drivers/pci/controller/dwc/pcie-spear13xx.c
+++ b/drivers/pci/controller/dwc/pcie-spear13xx.c
@@ -233,7 +233,7 @@ static int spear13xx_pcie_probe(struct platform_device *pdev)
 	}
 
 	if (of_property_read_bool(np, "st,pcie-is-gen1"))
-		pci->link_gen = 1;
+		pci->max_link_speed = 1;
 
 	platform_set_drvdata(pdev, spear13xx_pcie);
 
diff --git a/drivers/pci/controller/dwc/pcie-tegra194.c b/drivers/pci/controller/dwc/pcie-tegra194.c
index 4bf7b433417a..c1394f2ab63f 100644
--- a/drivers/pci/controller/dwc/pcie-tegra194.c
+++ b/drivers/pci/controller/dwc/pcie-tegra194.c
@@ -177,17 +177,12 @@
 #define N_FTS_VAL					52
 #define FTS_VAL						52
 
-#define GEN3_EQ_CONTROL_OFF			0x8a8
-#define GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC_SHIFT	8
-#define GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC_MASK	GENMASK(23, 8)
-#define GEN3_EQ_CONTROL_OFF_FB_MODE_MASK	GENMASK(3, 0)
-
 #define PORT_LOGIC_AMBA_ERROR_RESPONSE_DEFAULT	0x8D0
-#define AMBA_ERROR_RESPONSE_CRS_SHIFT		3
-#define AMBA_ERROR_RESPONSE_CRS_MASK		GENMASK(1, 0)
-#define AMBA_ERROR_RESPONSE_CRS_OKAY		0
-#define AMBA_ERROR_RESPONSE_CRS_OKAY_FFFFFFFF	1
-#define AMBA_ERROR_RESPONSE_CRS_OKAY_FFFF0001	2
+#define AMBA_ERROR_RESPONSE_RRS_SHIFT		3
+#define AMBA_ERROR_RESPONSE_RRS_MASK		GENMASK(1, 0)
+#define AMBA_ERROR_RESPONSE_RRS_OKAY		0
+#define AMBA_ERROR_RESPONSE_RRS_OKAY_FFFFFFFF	1
+#define AMBA_ERROR_RESPONSE_RRS_OKAY_FFFF0001	2
 
 #define MSIX_ADDR_MATCH_LOW_OFF			0x940
 #define MSIX_ADDR_MATCH_LOW_OFF_EN		BIT(0)
@@ -861,9 +856,9 @@ static void config_gen3_gen4_eq_presets(struct tegra_pcie_dw *pcie)
 	dw_pcie_writel_dbi(pci, GEN3_RELATED_OFF, val);
 
 	val = dw_pcie_readl_dbi(pci, GEN3_EQ_CONTROL_OFF);
-	val &= ~GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC_MASK;
-	val |= (0x3ff << GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC_SHIFT);
-	val &= ~GEN3_EQ_CONTROL_OFF_FB_MODE_MASK;
+	val &= ~GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC;
+	val |= FIELD_PREP(GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC, 0x3ff);
+	val &= ~GEN3_EQ_CONTROL_OFF_FB_MODE;
 	dw_pcie_writel_dbi(pci, GEN3_EQ_CONTROL_OFF, val);
 
 	val = dw_pcie_readl_dbi(pci, GEN3_RELATED_OFF);
@@ -872,10 +867,10 @@ static void config_gen3_gen4_eq_presets(struct tegra_pcie_dw *pcie)
 	dw_pcie_writel_dbi(pci, GEN3_RELATED_OFF, val);
 
 	val = dw_pcie_readl_dbi(pci, GEN3_EQ_CONTROL_OFF);
-	val &= ~GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC_MASK;
-	val |= (pcie->of_data->gen4_preset_vec <<
-		GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC_SHIFT);
-	val &= ~GEN3_EQ_CONTROL_OFF_FB_MODE_MASK;
+	val &= ~GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC;
+	val |= FIELD_PREP(GEN3_EQ_CONTROL_OFF_PSET_REQ_VEC,
+			  pcie->of_data->gen4_preset_vec);
+	val &= ~GEN3_EQ_CONTROL_OFF_FB_MODE;
 	dw_pcie_writel_dbi(pci, GEN3_EQ_CONTROL_OFF, val);
 
 	val = dw_pcie_readl_dbi(pci, GEN3_RELATED_OFF);
@@ -907,11 +902,11 @@ static int tegra_pcie_dw_host_init(struct dw_pcie_rp *pp)
 
 	dw_pcie_writel_dbi(pci, PCI_BASE_ADDRESS_0, 0);
 
-	/* Enable as 0xFFFF0001 response for CRS */
+	/* Enable as 0xFFFF0001 response for RRS */
 	val = dw_pcie_readl_dbi(pci, PORT_LOGIC_AMBA_ERROR_RESPONSE_DEFAULT);
-	val &= ~(AMBA_ERROR_RESPONSE_CRS_MASK << AMBA_ERROR_RESPONSE_CRS_SHIFT);
-	val |= (AMBA_ERROR_RESPONSE_CRS_OKAY_FFFF0001 <<
-		AMBA_ERROR_RESPONSE_CRS_SHIFT);
+	val &= ~(AMBA_ERROR_RESPONSE_RRS_MASK << AMBA_ERROR_RESPONSE_RRS_SHIFT);
+	val |= (AMBA_ERROR_RESPONSE_RRS_OKAY_FFFF0001 <<
+		AMBA_ERROR_RESPONSE_RRS_SHIFT);
 	dw_pcie_writel_dbi(pci, PORT_LOGIC_AMBA_ERROR_RESPONSE_DEFAULT, val);
 
 	/* Clear Slot Clock Configuration bit if SRNS configuration */
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
index 32951f7d6d6d..0e088e74155d 100644
--- a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
+++ b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c
@@ -360,8 +360,8 @@ static struct irq_chip mobiveil_msi_irq_chip = {
 };
 
 static struct msi_domain_info mobiveil_msi_domain_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_PCI_MSIX),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX,
 	.chip	= &mobiveil_msi_irq_chip,
 };
 
@@ -378,16 +378,9 @@ static void mobiveil_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 		(int)data->hwirq, msg->address_hi, msg->address_lo);
 }
 
-static int mobiveil_msi_set_affinity(struct irq_data *irq_data,
-				     const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static struct irq_chip mobiveil_msi_bottom_irq_chip = {
 	.name			= "Mobiveil MSI",
 	.irq_compose_msi_msg	= mobiveil_compose_msi_msg,
-	.irq_set_affinity	= mobiveil_msi_set_affinity,
 };
 
 static int mobiveil_irq_msi_domain_alloc(struct irq_domain *domain,
diff --git a/drivers/pci/controller/pci-aardvark.c b/drivers/pci/controller/pci-aardvark.c
index 8b3e1a079cf3..a598a98247ce 100644
--- a/drivers/pci/controller/pci-aardvark.c
+++ b/drivers/pci/controller/pci-aardvark.c
@@ -50,7 +50,7 @@
 #define   PIO_COMPLETION_STATUS_MASK		GENMASK(9, 7)
 #define   PIO_COMPLETION_STATUS_OK		0
 #define   PIO_COMPLETION_STATUS_UR		1
-#define   PIO_COMPLETION_STATUS_CRS		2
+#define   PIO_COMPLETION_STATUS_RRS		2
 #define   PIO_COMPLETION_STATUS_CA		4
 #define   PIO_NON_POSTED_REQ			BIT(10)
 #define   PIO_ERR_STATUS			BIT(11)
@@ -262,7 +262,7 @@ enum {
 
 #define MSI_IRQ_NUM			32
 
-#define CFG_RD_CRS_VAL			0xffff0001
+#define CFG_RD_RRS_VAL			0xffff0001
 
 struct advk_pcie {
 	struct platform_device *pdev;
@@ -649,7 +649,7 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
 	advk_pcie_train_link(pcie);
 }
 
-static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u32 *val)
+static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_rrs, u32 *val)
 {
 	struct device *dev = &pcie->pdev->dev;
 	u32 reg;
@@ -669,7 +669,7 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 	 * 2) value Unsupported Request(1) of COMPLETION_STATUS(bit9:7) only
 	 *    means a PIO write error, and for PIO read it is successful with
 	 *    a read value of 0xFFFFFFFF.
-	 * 3) value Completion Retry Status(CRS) of COMPLETION_STATUS(bit9:7)
+	 * 3) value Config Request Retry Status(RRS) of COMPLETION_STATUS(bit9:7)
 	 *    only means a PIO write error, and for PIO read it is successful
 	 *    with a read value of 0xFFFF0001.
 	 * 4) value Completer Abort (CA) of COMPLETION_STATUS(bit9:7) means
@@ -694,10 +694,10 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 		strcomp_status = "UR";
 		ret = -EOPNOTSUPP;
 		break;
-	case PIO_COMPLETION_STATUS_CRS:
-		if (allow_crs && val) {
-			/* PCIe r4.0, sec 2.3.2, says:
-			 * If CRS Software Visibility is enabled:
+	case PIO_COMPLETION_STATUS_RRS:
+		if (allow_rrs && val) {
+			/* PCIe r6.0, sec 2.3.2, says:
+			 * If Configuration RRS Software Visibility is enabled:
 			 * For a Configuration Read Request that includes both
 			 * bytes of the Vendor ID field of a device Function's
 			 * Configuration Space Header, the Root Complex must
@@ -706,22 +706,22 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 			 * all '1's for any additional bytes included in the
 			 * request.
 			 *
-			 * So CRS in this case is not an error status.
+			 * So RRS in this case is not an error status.
 			 */
-			*val = CFG_RD_CRS_VAL;
+			*val = CFG_RD_RRS_VAL;
 			strcomp_status = NULL;
 			ret = 0;
 			break;
 		}
-		/* PCIe r4.0, sec 2.3.2, says:
-		 * If CRS Software Visibility is not enabled, the Root Complex
+		/* PCIe r6.0, sec 2.3.2, says:
+		 * If RRS Software Visibility is not enabled, the Root Complex
 		 * must re-issue the Configuration Request as a new Request.
-		 * If CRS Software Visibility is enabled: For a Configuration
+		 * If RRS Software Visibility is enabled: For a Configuration
 		 * Write Request or for any other Configuration Read Request,
 		 * the Root Complex must re-issue the Configuration Request as
 		 * a new Request.
 		 * A Root Complex implementation may choose to limit the number
-		 * of Configuration Request/CRS Completion Status loops before
+		 * of Configuration Request/RRS Completion Status loops before
 		 * determining that something is wrong with the target of the
 		 * Request and taking appropriate action, e.g., complete the
 		 * Request to the host as a failed transaction.
@@ -729,7 +729,7 @@ static int advk_pcie_check_pio_status(struct advk_pcie *pcie, bool allow_crs, u3
 		 * So return -EAGAIN and caller (pci-aardvark.c driver) will
 		 * re-issue request again up to the PIO_RETRY_CNT retries.
 		 */
-		strcomp_status = "CRS";
+		strcomp_status = "RRS";
 		ret = -EAGAIN;
 		break;
 	case PIO_COMPLETION_STATUS_CA:
@@ -920,8 +920,8 @@ advk_pci_bridge_emul_pcie_conf_write(struct pci_bridge_emul *bridge,
 
 	case PCI_EXP_RTCTL: {
 		u16 rootctl = le16_to_cpu(bridge->pcie_conf.rootctl);
-		/* Only emulation of PMEIE and CRSSVE bits is provided */
-		rootctl &= PCI_EXP_RTCTL_PMEIE | PCI_EXP_RTCTL_CRSSVE;
+		/* Only emulation of PMEIE and RRS_SVE bits is provided */
+		rootctl &= PCI_EXP_RTCTL_PMEIE | PCI_EXP_RTCTL_RRS_SVE;
 		bridge->pcie_conf.rootctl = cpu_to_le16(rootctl);
 		break;
 	}
@@ -1075,7 +1075,7 @@ static int advk_sw_pci_bridge_init(struct advk_pcie *pcie)
 	bridge->pcie_conf.slotsta = cpu_to_le16(PCI_EXP_SLTSTA_PDS);
 
 	/* Indicates supports for Completion Retry Status */
-	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_CRSVIS);
+	bridge->pcie_conf.rootcap = cpu_to_le16(PCI_EXP_RTCAP_RRS_SV);
 
 	bridge->subsystem_vendor_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) & 0xffff;
 	bridge->subsystem_id = advk_readl(pcie, PCIE_CORE_SSDEV_ID_REG) >> 16;
@@ -1141,7 +1141,7 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 {
 	struct advk_pcie *pcie = bus->sysdata;
 	int retry_count;
-	bool allow_crs;
+	bool allow_rrs;
 	u32 reg;
 	int ret;
 
@@ -1153,16 +1153,16 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 						 size, val);
 
 	/*
-	 * Completion Retry Status is possible to return only when reading all
-	 * 4 bytes from PCI_VENDOR_ID and PCI_DEVICE_ID registers at once and
-	 * CRSSVE flag on Root Bridge is enabled.
+	 * Configuration Request Retry Status (RRS) is possible to return
+	 * only when reading both bytes from PCI_VENDOR_ID at once and
+	 * RRS_SVE flag on Root Port is enabled.
 	 */
-	allow_crs = (where == PCI_VENDOR_ID) && (size == 4) &&
+	allow_rrs = (where == PCI_VENDOR_ID) && (size >= 2) &&
 		    (le16_to_cpu(pcie->bridge.pcie_conf.rootctl) &
-		     PCI_EXP_RTCTL_CRSSVE);
+		     PCI_EXP_RTCTL_RRS_SVE);
 
 	if (advk_pcie_pio_is_running(pcie))
-		goto try_crs;
+		goto try_rrs;
 
 	/* Program the control register */
 	reg = advk_readl(pcie, PIO_CTRL);
@@ -1189,12 +1189,12 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 
 		ret = advk_pcie_wait_pio(pcie);
 		if (ret < 0)
-			goto try_crs;
+			goto try_rrs;
 
 		retry_count += ret;
 
 		/* Check PIO status and get the read result */
-		ret = advk_pcie_check_pio_status(pcie, allow_crs, val);
+		ret = advk_pcie_check_pio_status(pcie, allow_rrs, val);
 	} while (ret == -EAGAIN && retry_count < PIO_RETRY_CNT);
 
 	if (ret < 0)
@@ -1207,13 +1207,13 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
 
 	return PCIBIOS_SUCCESSFUL;
 
-try_crs:
+try_rrs:
 	/*
-	 * If it is possible, return Completion Retry Status so that caller
-	 * tries to issue the request again instead of failing.
+	 * If it is possible, return Configuration Request Retry Status so
+	 * that caller tries to issue the request again instead of failing.
 	 */
-	if (allow_crs) {
-		*val = CFG_RD_CRS_VAL;
+	if (allow_rrs) {
+		*val = CFG_RD_RRS_VAL;
 		return PCIBIOS_SUCCESSFUL;
 	}
 
@@ -1304,12 +1304,6 @@ static void advk_msi_irq_compose_msi_msg(struct irq_data *data,
 	msg->data = data->hwirq;
 }
 
-static int advk_msi_set_affinity(struct irq_data *irq_data,
-				 const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void advk_msi_irq_mask(struct irq_data *d)
 {
 	struct advk_pcie *pcie = d->domain->host_data;
@@ -1353,7 +1347,6 @@ static void advk_msi_top_irq_unmask(struct irq_data *d)
 static struct irq_chip advk_msi_bottom_irq_chip = {
 	.name			= "MSI",
 	.irq_compose_msi_msg	= advk_msi_irq_compose_msi_msg,
-	.irq_set_affinity	= advk_msi_set_affinity,
 	.irq_mask		= advk_msi_irq_mask,
 	.irq_unmask		= advk_msi_irq_unmask,
 };
@@ -1451,7 +1444,8 @@ static struct irq_chip advk_msi_irq_chip = {
 
 static struct msi_domain_info advk_msi_domain_info = {
 	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		  MSI_FLAG_MULTI_PCI_MSI | MSI_FLAG_PCI_MSIX,
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_MULTI_PCI_MSI |
+		  MSI_FLAG_PCI_MSIX,
 	.chip	= &advk_msi_irq_chip,
 };
 
diff --git a/drivers/pci/controller/pci-tegra.c b/drivers/pci/controller/pci-tegra.c
index 038d974a318e..d7517c3976e7 100644
--- a/drivers/pci/controller/pci-tegra.c
+++ b/drivers/pci/controller/pci-tegra.c
@@ -1629,11 +1629,6 @@ static void tegra_msi_irq_unmask(struct irq_data *d)
 	spin_unlock_irqrestore(&msi->mask_lock, flags);
 }
 
-static int tegra_msi_set_affinity(struct irq_data *d, const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void tegra_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 {
 	struct tegra_msi *msi = irq_data_get_irq_chip_data(data);
@@ -1648,7 +1643,6 @@ static struct irq_chip tegra_msi_bottom_chip = {
 	.irq_ack		= tegra_msi_irq_ack,
 	.irq_mask		= tegra_msi_irq_mask,
 	.irq_unmask		= tegra_msi_irq_unmask,
-	.irq_set_affinity 	= tegra_msi_set_affinity,
 	.irq_compose_msi_msg	= tegra_compose_msi_msg,
 };
 
@@ -1697,8 +1691,8 @@ static const struct irq_domain_ops tegra_msi_domain_ops = {
 };
 
 static struct msi_domain_info tegra_msi_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_PCI_MSIX),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX,
 	.chip	= &tegra_msi_top_chip,
 };
 
diff --git a/drivers/pci/controller/pci-xgene.c b/drivers/pci/controller/pci-xgene.c
index 8e457fa450a2..1e2ebbfa36d1 100644
--- a/drivers/pci/controller/pci-xgene.c
+++ b/drivers/pci/controller/pci-xgene.c
@@ -171,17 +171,17 @@ static int xgene_pcie_config_read32(struct pci_bus *bus, unsigned int devfn,
 
 	/*
 	 * The v1 controller has a bug in its Configuration Request Retry
-	 * Status (CRS) logic: when CRS Software Visibility is enabled and
+	 * Status (RRS) logic: when RRS Software Visibility is enabled and
 	 * we read the Vendor and Device ID of a non-existent device, the
 	 * controller fabricates return data of 0xFFFF0001 ("device exists
 	 * but is not ready") instead of 0xFFFFFFFF (PCI_ERROR_RESPONSE)
 	 * ("device does not exist").  This causes the PCI core to retry
 	 * the read until it times out.  Avoid this by not claiming to
-	 * support CRS SV.
+	 * support RRS SV.
 	 */
 	if (pci_is_root_bus(bus) && (port->version == XGENE_PCIE_IP_VER_1) &&
 	    ((where & ~0x3) == XGENE_V1_PCI_EXP_CAP + PCI_EXP_RTCTL))
-		*val &= ~(PCI_EXP_RTCAP_CRSVIS << 16);
+		*val &= ~(PCI_EXP_RTCAP_RRS_SV << 16);
 
 	if (size <= 2)
 		*val = (*val >> (8 * (where & 3))) & ((1 << (size * 8)) - 1);
diff --git a/drivers/pci/controller/pcie-altera-msi.c b/drivers/pci/controller/pcie-altera-msi.c
index 16336a525c16..e36a6e158d23 100644
--- a/drivers/pci/controller/pcie-altera-msi.c
+++ b/drivers/pci/controller/pcie-altera-msi.c
@@ -81,8 +81,8 @@ static struct irq_chip altera_msi_irq_chip = {
 };
 
 static struct msi_domain_info altera_msi_domain_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		     MSI_FLAG_PCI_MSIX),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX,
 	.chip	= &altera_msi_irq_chip,
 };
 
@@ -99,16 +99,9 @@ static void altera_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 		(int)data->hwirq, msg->address_hi, msg->address_lo);
 }
 
-static int altera_msi_set_affinity(struct irq_data *irq_data,
-				   const struct cpumask *mask, bool force)
-{
-	 return -EINVAL;
-}
-
 static struct irq_chip altera_msi_bottom_irq_chip = {
 	.name			= "Altera MSI",
 	.irq_compose_msi_msg	= altera_compose_msi_msg,
-	.irq_set_affinity	= altera_msi_set_affinity,
 };
 
 static int altera_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
diff --git a/drivers/pci/controller/pcie-altera.c b/drivers/pci/controller/pcie-altera.c
index ef73baefaeb9..650b2dd81c48 100644
--- a/drivers/pci/controller/pcie-altera.c
+++ b/drivers/pci/controller/pcie-altera.c
@@ -55,12 +55,11 @@
 #define TLP_READ_TAG			0x1d
 #define TLP_WRITE_TAG			0x10
 #define RP_DEVFN			0
-#define TLP_REQ_ID(bus, devfn)		(((bus) << 8) | (devfn))
 #define TLP_CFG_DW0(pcie, cfg)		\
 		(((cfg) << 24) |	\
 		  TLP_PAYLOAD_SIZE)
 #define TLP_CFG_DW1(pcie, tag, be)	\
-	(((TLP_REQ_ID(pcie->root_bus_nr,  RP_DEVFN)) << 16) | (tag << 8) | (be))
+	(((PCI_DEVID(pcie->root_bus_nr,  RP_DEVFN)) << 16) | (tag << 8) | (be))
 #define TLP_CFG_DW2(bus, devfn, offset)	\
 				(((bus) << 24) | ((devfn) << 16) | (offset))
 #define TLP_COMP_STATUS(s)		(((s) >> 13) & 7)
diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
index c08683febdd4..9321280f6edb 100644
--- a/drivers/pci/controller/pcie-brcmstb.c
+++ b/drivers/pci/controller/pcie-brcmstb.c
@@ -75,15 +75,19 @@
 #define PCIE_MEM_WIN0_HI(win)	\
 		PCIE_MISC_CPU_2_PCIE_MEM_WIN0_HI + ((win) * 8)
 
+/*
+ * NOTE: You may see the term "BAR" in a number of register names used by
+ *   this driver.  The term is an artifact of when the HW core was an
+ *   endpoint device (EP).  Now it is a root complex (RC) and anywhere a
+ *   register has the term "BAR" it is related to an inbound window.
+ */
+
+#define PCIE_BRCM_MAX_INBOUND_WINS			16
 #define PCIE_MISC_RC_BAR1_CONFIG_LO			0x402c
 #define  PCIE_MISC_RC_BAR1_CONFIG_LO_SIZE_MASK		0x1f
 
-#define PCIE_MISC_RC_BAR2_CONFIG_LO			0x4034
-#define  PCIE_MISC_RC_BAR2_CONFIG_LO_SIZE_MASK		0x1f
-#define PCIE_MISC_RC_BAR2_CONFIG_HI			0x4038
+#define PCIE_MISC_RC_BAR4_CONFIG_LO			0x40d4
 
-#define PCIE_MISC_RC_BAR3_CONFIG_LO			0x403c
-#define  PCIE_MISC_RC_BAR3_CONFIG_LO_SIZE_MASK		0x1f
 
 #define PCIE_MISC_MSI_BAR_CONFIG_LO			0x4044
 #define PCIE_MISC_MSI_BAR_CONFIG_HI			0x4048
@@ -122,7 +126,6 @@
 #define PCIE_MEM_WIN0_LIMIT_HI(win)	\
 		PCIE_MISC_CPU_2_PCIE_MEM_WIN0_LIMIT_HI + ((win) * 8)
 
-#define PCIE_MISC_HARD_PCIE_HARD_DEBUG					0x4204
 #define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_DEBUG_ENABLE_MASK	0x2
 #define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_L1SS_ENABLE_MASK		0x200000
 #define  PCIE_MISC_HARD_PCIE_HARD_DEBUG_SERDES_IDDQ_MASK		0x08000000
@@ -131,9 +134,13 @@
 	  (PCIE_MISC_HARD_PCIE_HARD_DEBUG_CLKREQ_DEBUG_ENABLE_MASK | \
 	   PCIE_MISC_HARD_PCIE_HARD_DEBUG_L1SS_ENABLE_MASK)
 
-#define PCIE_INTR2_CPU_BASE		0x4300
+#define PCIE_MISC_UBUS_BAR1_CONFIG_REMAP			0x40ac
+#define  PCIE_MISC_UBUS_BAR1_CONFIG_REMAP_ACCESS_EN_MASK	BIT(0)
+#define PCIE_MISC_UBUS_BAR4_CONFIG_REMAP			0x410c
+
 #define PCIE_MSI_INTR2_BASE		0x4500
-/* Offsets from PCIE_INTR2_CPU_BASE and PCIE_MSI_INTR2_BASE */
+
+/* Offsets from INTR2_CPU and MSI_INTR2 BASE offsets */
 #define  MSI_INT_STATUS			0x0
 #define  MSI_INT_CLR			0x8
 #define  MSI_INT_MASK_SET		0x10
@@ -184,9 +191,11 @@
 #define SSC_STATUS_PLL_LOCK_MASK	0x800
 #define PCIE_BRCM_MAX_MEMC		3
 
-#define IDX_ADDR(pcie)			(pcie->reg_offsets[EXT_CFG_INDEX])
-#define DATA_ADDR(pcie)			(pcie->reg_offsets[EXT_CFG_DATA])
-#define PCIE_RGR1_SW_INIT_1(pcie)	(pcie->reg_offsets[RGR1_SW_INIT_1])
+#define IDX_ADDR(pcie)			((pcie)->reg_offsets[EXT_CFG_INDEX])
+#define DATA_ADDR(pcie)			((pcie)->reg_offsets[EXT_CFG_DATA])
+#define PCIE_RGR1_SW_INIT_1(pcie)	((pcie)->reg_offsets[RGR1_SW_INIT_1])
+#define HARD_DEBUG(pcie)		((pcie)->reg_offsets[PCIE_HARD_DEBUG])
+#define INTR2_CPU_BASE(pcie)		((pcie)->reg_offsets[PCIE_INTR2_CPU_BASE])
 
 /* Rescal registers */
 #define PCIE_DVT_PMU_PCIE_PHY_CTRL				0xc700
@@ -205,27 +214,33 @@ enum {
 	RGR1_SW_INIT_1,
 	EXT_CFG_INDEX,
 	EXT_CFG_DATA,
+	PCIE_HARD_DEBUG,
+	PCIE_INTR2_CPU_BASE,
 };
 
-enum {
-	RGR1_SW_INIT_1_INIT_MASK,
-	RGR1_SW_INIT_1_INIT_SHIFT,
-};
-
-enum pcie_type {
+enum pcie_soc_base {
 	GENERIC,
-	BCM7425,
-	BCM7435,
+	BCM2711,
 	BCM4908,
 	BCM7278,
-	BCM2711,
+	BCM7425,
+	BCM7435,
+	BCM7712,
+};
+
+struct inbound_win {
+	u64 size;
+	u64 pci_offset;
+	u64 cpu_addr;
 };
 
 struct pcie_cfg_data {
 	const int *offsets;
-	const enum pcie_type type;
-	void (*perst_set)(struct brcm_pcie *pcie, u32 val);
-	void (*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val);
+	const enum pcie_soc_base soc_base;
+	const bool has_phy;
+	u8 num_inbound_wins;
+	int (*perst_set)(struct brcm_pcie *pcie, u32 val);
+	int (*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val);
 };
 
 struct subdev_regulators {
@@ -262,21 +277,25 @@ struct brcm_pcie {
 	u64			msi_target_addr;
 	struct brcm_msi		*msi;
 	const int		*reg_offsets;
-	enum pcie_type		type;
+	enum pcie_soc_base	soc_base;
 	struct reset_control	*rescal;
 	struct reset_control	*perst_reset;
+	struct reset_control	*bridge_reset;
+	struct reset_control	*swinit_reset;
 	int			num_memc;
 	u64			memc_size[PCIE_BRCM_MAX_MEMC];
 	u32			hw_rev;
-	void			(*perst_set)(struct brcm_pcie *pcie, u32 val);
-	void			(*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val);
+	int			(*perst_set)(struct brcm_pcie *pcie, u32 val);
+	int			(*bridge_sw_init_set)(struct brcm_pcie *pcie, u32 val);
 	struct subdev_regulators *sr;
 	bool			ep_wakeup_capable;
+	bool			has_phy;
+	u8			num_inbound_wins;
 };
 
 static inline bool is_bmips(const struct brcm_pcie *pcie)
 {
-	return pcie->type == BCM7435 || pcie->type == BCM7425;
+	return pcie->soc_base == BCM7435 || pcie->soc_base == BCM7425;
 }
 
 /*
@@ -394,7 +413,7 @@ static void brcm_pcie_set_gen(struct brcm_pcie *pcie, int gen)
 }
 
 static void brcm_pcie_set_outbound_win(struct brcm_pcie *pcie,
-				       unsigned int win, u64 cpu_addr,
+				       u8 win, u64 cpu_addr,
 				       u64 pcie_addr, u64 size)
 {
 	u32 cpu_addr_mb_high, limit_addr_mb_high;
@@ -445,8 +464,8 @@ static struct irq_chip brcm_msi_irq_chip = {
 };
 
 static struct msi_domain_info brcm_msi_domain_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_MULTI_PCI_MSI),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_MULTI_PCI_MSI,
 	.chip	= &brcm_msi_irq_chip,
 };
 
@@ -484,12 +503,6 @@ static void brcm_msi_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 	msg->data = (0xffff & PCIE_MISC_MSI_DATA_CONFIG_VAL_32) | data->hwirq;
 }
 
-static int brcm_msi_set_affinity(struct irq_data *irq_data,
-				 const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void brcm_msi_ack_irq(struct irq_data *data)
 {
 	struct brcm_msi *msi = irq_data_get_irq_chip_data(data);
@@ -502,7 +515,6 @@ static void brcm_msi_ack_irq(struct irq_data *data)
 static struct irq_chip brcm_msi_bottom_irq_chip = {
 	.name			= "BRCM STB MSI",
 	.irq_compose_msi_msg	= brcm_msi_compose_msi_msg,
-	.irq_set_affinity	= brcm_msi_set_affinity,
 	.irq_ack                = brcm_msi_ack_irq,
 };
 
@@ -649,7 +661,7 @@ static int brcm_pcie_enable_msi(struct brcm_pcie *pcie)
 	BUILD_BUG_ON(BRCM_INT_PCI_MSI_LEGACY_NR > BRCM_INT_PCI_MSI_NR);
 
 	if (msi->legacy) {
-		msi->intr_base = msi->base + PCIE_INTR2_CPU_BASE;
+		msi->intr_base = msi->base + INTR2_CPU_BASE(pcie);
 		msi->nr = BRCM_INT_PCI_MSI_LEGACY_NR;
 		msi->legacy_shift = 24;
 	} else {
@@ -730,17 +742,33 @@ static void __iomem *brcm7425_pcie_map_bus(struct pci_bus *bus,
 	return base + DATA_ADDR(pcie);
 }
 
-static void brcm_pcie_bridge_sw_init_set_generic(struct brcm_pcie *pcie, u32 val)
+static int brcm_pcie_bridge_sw_init_set_generic(struct brcm_pcie *pcie, u32 val)
 {
-	u32 tmp, mask =  RGR1_SW_INIT_1_INIT_GENERIC_MASK;
+	u32 tmp, mask = RGR1_SW_INIT_1_INIT_GENERIC_MASK;
 	u32 shift = RGR1_SW_INIT_1_INIT_GENERIC_SHIFT;
+	int ret = 0;
+
+	if (pcie->bridge_reset) {
+		if (val)
+			ret = reset_control_assert(pcie->bridge_reset);
+		else
+			ret = reset_control_deassert(pcie->bridge_reset);
+
+		if (ret)
+			dev_err(pcie->dev, "failed to %s 'bridge' reset, err=%d\n",
+				val ? "assert" : "deassert", ret);
+
+		return ret;
+	}
 
 	tmp = readl(pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
 	tmp = (tmp & ~mask) | ((val << shift) & mask);
 	writel(tmp, pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
+
+	return ret;
 }
 
-static void brcm_pcie_bridge_sw_init_set_7278(struct brcm_pcie *pcie, u32 val)
+static int brcm_pcie_bridge_sw_init_set_7278(struct brcm_pcie *pcie, u32 val)
 {
 	u32 tmp, mask =  RGR1_SW_INIT_1_INIT_7278_MASK;
 	u32 shift = RGR1_SW_INIT_1_INIT_7278_SHIFT;
@@ -748,20 +776,29 @@ static void brcm_pcie_bridge_sw_init_set_7278(struct brcm_pcie *pcie, u32 val)
 	tmp = readl(pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
 	tmp = (tmp & ~mask) | ((val << shift) & mask);
 	writel(tmp, pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
+
+	return 0;
 }
 
-static void brcm_pcie_perst_set_4908(struct brcm_pcie *pcie, u32 val)
+static int brcm_pcie_perst_set_4908(struct brcm_pcie *pcie, u32 val)
 {
+	int ret;
+
 	if (WARN_ONCE(!pcie->perst_reset, "missing PERST# reset controller\n"))
-		return;
+		return -EINVAL;
 
 	if (val)
-		reset_control_assert(pcie->perst_reset);
+		ret = reset_control_assert(pcie->perst_reset);
 	else
-		reset_control_deassert(pcie->perst_reset);
+		ret = reset_control_deassert(pcie->perst_reset);
+
+	if (ret)
+		dev_err(pcie->dev, "failed to %s 'perst' reset, err=%d\n",
+			val ? "assert" : "deassert", ret);
+	return ret;
 }
 
-static void brcm_pcie_perst_set_7278(struct brcm_pcie *pcie, u32 val)
+static int brcm_pcie_perst_set_7278(struct brcm_pcie *pcie, u32 val)
 {
 	u32 tmp;
 
@@ -769,34 +806,77 @@ static void brcm_pcie_perst_set_7278(struct brcm_pcie *pcie, u32 val)
 	tmp = readl(pcie->base + PCIE_MISC_PCIE_CTRL);
 	u32p_replace_bits(&tmp, !val, PCIE_MISC_PCIE_CTRL_PCIE_PERSTB_MASK);
 	writel(tmp, pcie->base +  PCIE_MISC_PCIE_CTRL);
+
+	return 0;
 }
 
-static void brcm_pcie_perst_set_generic(struct brcm_pcie *pcie, u32 val)
+static int brcm_pcie_perst_set_generic(struct brcm_pcie *pcie, u32 val)
 {
 	u32 tmp;
 
 	tmp = readl(pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
 	u32p_replace_bits(&tmp, val, PCIE_RGR1_SW_INIT_1_PERST_MASK);
 	writel(tmp, pcie->base + PCIE_RGR1_SW_INIT_1(pcie));
+
+	return 0;
 }
 
-static int brcm_pcie_get_rc_bar2_size_and_offset(struct brcm_pcie *pcie,
-							u64 *rc_bar2_size,
-							u64 *rc_bar2_offset)
+static void add_inbound_win(struct inbound_win *b, u8 *count, u64 size,
+			    u64 cpu_addr, u64 pci_offset)
+{
+	b->size = size;
+	b->cpu_addr = cpu_addr;
+	b->pci_offset = pci_offset;
+	(*count)++;
+}
+
+static int brcm_pcie_get_inbound_wins(struct brcm_pcie *pcie,
+				      struct inbound_win inbound_wins[])
 {
 	struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie);
+	u64 pci_offset, cpu_addr, size = 0, tot_size = 0;
 	struct resource_entry *entry;
 	struct device *dev = pcie->dev;
 	u64 lowest_pcie_addr = ~(u64)0;
 	int ret, i = 0;
-	u64 size = 0;
+	u8 n = 0;
+
+	/*
+	 * The HW registers (and PCIe) use order-1 numbering for BARs.  As such,
+	 * we have inbound_wins[0] unused and BAR1 starts at inbound_wins[1].
+	 */
+	struct inbound_win *b_begin = &inbound_wins[1];
+	struct inbound_win *b = b_begin;
+
+	/*
+	 * STB chips beside 7712 disable the first inbound window default.
+	 * Rather being mapped to system memory it is mapped to the
+	 * internal registers of the SoC.  This feature is deprecated, has
+	 * security considerations, and is not implemented in our modern
+	 * SoCs.
+	 */
+	if (pcie->soc_base != BCM7712)
+		add_inbound_win(b++, &n, 0, 0, 0);
 
 	resource_list_for_each_entry(entry, &bridge->dma_ranges) {
-		u64 pcie_beg = entry->res->start - entry->offset;
+		u64 pcie_start = entry->res->start - entry->offset;
+		u64 cpu_start = entry->res->start;
+
+		size = resource_size(entry->res);
+		tot_size += size;
+		if (pcie_start < lowest_pcie_addr)
+			lowest_pcie_addr = pcie_start;
+		/*
+		 * 7712 and newer chips may have many BARs, with each
+		 * offering a non-overlapping viewport to system memory.
+		 * That being said, each BARs size must still be a power of
+		 * two.
+		 */
+		if (pcie->soc_base == BCM7712)
+			add_inbound_win(b++, &n, size, cpu_start, pcie_start);
 
-		size += entry->res->end - entry->res->start + 1;
-		if (pcie_beg < lowest_pcie_addr)
-			lowest_pcie_addr = pcie_beg;
+		if (n > pcie->num_inbound_wins)
+			break;
 	}
 
 	if (lowest_pcie_addr == ~(u64)0) {
@@ -804,13 +884,20 @@ static int brcm_pcie_get_rc_bar2_size_and_offset(struct brcm_pcie *pcie,
 		return -EINVAL;
 	}
 
+	/*
+	 * 7712 and newer chips do not have an internal memory mapping system
+	 * that enables multiple memory controllers.  As such, it can return
+	 * now w/o doing special configuration.
+	 */
+	if (pcie->soc_base == BCM7712)
+		return n;
+
 	ret = of_property_read_variable_u64_array(pcie->np, "brcm,scb-sizes", pcie->memc_size, 1,
 						  PCIE_BRCM_MAX_MEMC);
-
 	if (ret <= 0) {
 		/* Make an educated guess */
 		pcie->num_memc = 1;
-		pcie->memc_size[0] = 1ULL << fls64(size - 1);
+		pcie->memc_size[0] = 1ULL << fls64(tot_size - 1);
 	} else {
 		pcie->num_memc = ret;
 	}
@@ -819,10 +906,15 @@ static int brcm_pcie_get_rc_bar2_size_and_offset(struct brcm_pcie *pcie,
 	for (i = 0, size = 0; i < pcie->num_memc; i++)
 		size += pcie->memc_size[i];
 
-	/* System memory starts at this address in PCIe-space */
-	*rc_bar2_offset = lowest_pcie_addr;
-	/* The sum of all memc views must also be a power of 2 */
-	*rc_bar2_size = 1ULL << fls64(size - 1);
+	/* Our HW mandates that the window size must be a power of 2 */
+	size = 1ULL << fls64(size - 1);
+
+	/*
+	 * For STB chips, the BAR2 cpu_addr is hardwired to the start
+	 * of system memory, so we set it to 0.
+	 */
+	cpu_addr = 0;
+	pci_offset = lowest_pcie_addr;
 
 	/*
 	 * We validate the inbound memory view even though we should trust
@@ -857,44 +949,119 @@ static int brcm_pcie_get_rc_bar2_size_and_offset(struct brcm_pcie *pcie,
 	 *   outbound memory @ 3GB). So instead it will  start at the 1x
 	 *   multiple of its size
 	 */
-	if (!*rc_bar2_size || (*rc_bar2_offset & (*rc_bar2_size - 1)) ||
-	    (*rc_bar2_offset < SZ_4G && *rc_bar2_offset > SZ_2G)) {
-		dev_err(dev, "Invalid rc_bar2_offset/size: size 0x%llx, off 0x%llx\n",
-			*rc_bar2_size, *rc_bar2_offset);
+	if (!size || (pci_offset & (size - 1)) ||
+	    (pci_offset < SZ_4G && pci_offset > SZ_2G)) {
+		dev_err(dev, "Invalid inbound_win2_offset/size: size 0x%llx, off 0x%llx\n",
+			size, pci_offset);
 		return -EINVAL;
 	}
 
-	return 0;
+	/* Enable inbound window 2, the main inbound window for STB chips */
+	add_inbound_win(b++, &n, size, cpu_addr, pci_offset);
+
+	/*
+	 * Disable inbound window 3.  On some chips presents the same
+	 * window as #2 but the data appears in a settable endianness.
+	 */
+	add_inbound_win(b++, &n, 0, 0, 0);
+
+	return n;
+}
+
+static u32 brcm_bar_reg_offset(int bar)
+{
+	if (bar <= 3)
+		return PCIE_MISC_RC_BAR1_CONFIG_LO + 8 * (bar - 1);
+	else
+		return PCIE_MISC_RC_BAR4_CONFIG_LO + 8 * (bar - 4);
+}
+
+static u32 brcm_ubus_reg_offset(int bar)
+{
+	if (bar <= 3)
+		return PCIE_MISC_UBUS_BAR1_CONFIG_REMAP + 8 * (bar - 1);
+	else
+		return PCIE_MISC_UBUS_BAR4_CONFIG_REMAP + 8 * (bar - 4);
+}
+
+static void set_inbound_win_registers(struct brcm_pcie *pcie,
+				      const struct inbound_win *inbound_wins,
+				      u8 num_inbound_wins)
+{
+	void __iomem *base = pcie->base;
+	int i;
+
+	for (i = 1; i <= num_inbound_wins; i++) {
+		u64 pci_offset = inbound_wins[i].pci_offset;
+		u64 cpu_addr = inbound_wins[i].cpu_addr;
+		u64 size = inbound_wins[i].size;
+		u32 reg_offset = brcm_bar_reg_offset(i);
+		u32 tmp = lower_32_bits(pci_offset);
+
+		u32p_replace_bits(&tmp, brcm_pcie_encode_ibar_size(size),
+				  PCIE_MISC_RC_BAR1_CONFIG_LO_SIZE_MASK);
+
+		/* Write low */
+		writel_relaxed(tmp, base + reg_offset);
+		/* Write high */
+		writel_relaxed(upper_32_bits(pci_offset), base + reg_offset + 4);
+
+		/*
+		 * Most STB chips:
+		 *     Do nothing.
+		 * 7712:
+		 *     All of their BARs need to be set.
+		 */
+		if (pcie->soc_base == BCM7712) {
+			/* BUS remap register settings */
+			reg_offset = brcm_ubus_reg_offset(i);
+			tmp = lower_32_bits(cpu_addr) & ~0xfff;
+			tmp |= PCIE_MISC_UBUS_BAR1_CONFIG_REMAP_ACCESS_EN_MASK;
+			writel_relaxed(tmp, base + reg_offset);
+			tmp = upper_32_bits(cpu_addr);
+			writel_relaxed(tmp, base + reg_offset + 4);
+		}
+	}
 }
 
 static int brcm_pcie_setup(struct brcm_pcie *pcie)
 {
-	u64 rc_bar2_offset, rc_bar2_size;
+	struct inbound_win inbound_wins[PCIE_BRCM_MAX_INBOUND_WINS];
 	void __iomem *base = pcie->base;
 	struct pci_host_bridge *bridge;
 	struct resource_entry *entry;
 	u32 tmp, burst, aspm_support;
-	int num_out_wins = 0;
-	int ret, memc;
+	u8 num_out_wins = 0;
+	int num_inbound_wins = 0;
+	int memc, ret;
 
 	/* Reset the bridge */
-	pcie->bridge_sw_init_set(pcie, 1);
+	ret = pcie->bridge_sw_init_set(pcie, 1);
+	if (ret)
+		return ret;
 
 	/* Ensure that PERST# is asserted; some bootloaders may deassert it. */
-	if (pcie->type == BCM2711)
-		pcie->perst_set(pcie, 1);
+	if (pcie->soc_base == BCM2711) {
+		ret = pcie->perst_set(pcie, 1);
+		if (ret) {
+			pcie->bridge_sw_init_set(pcie, 0);
+			return ret;
+		}
+	}
 
 	usleep_range(100, 200);
 
 	/* Take the bridge out of reset */
-	pcie->bridge_sw_init_set(pcie, 0);
+	ret = pcie->bridge_sw_init_set(pcie, 0);
+	if (ret)
+		return ret;
 
-	tmp = readl(base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	tmp = readl(base + HARD_DEBUG(pcie));
 	if (is_bmips(pcie))
 		tmp &= ~PCIE_BMIPS_MISC_HARD_PCIE_HARD_DEBUG_SERDES_IDDQ_MASK;
 	else
 		tmp &= ~PCIE_MISC_HARD_PCIE_HARD_DEBUG_SERDES_IDDQ_MASK;
-	writel(tmp, base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	writel(tmp, base + HARD_DEBUG(pcie));
 	/* Wait for SerDes to be stable */
 	usleep_range(100, 200);
 
@@ -905,9 +1072,9 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie)
 	 */
 	if (is_bmips(pcie))
 		burst = 0x1; /* 256 bytes */
-	else if (pcie->type == BCM2711)
+	else if (pcie->soc_base == BCM2711)
 		burst = 0x0; /* 128 bytes */
-	else if (pcie->type == BCM7278)
+	else if (pcie->soc_base == BCM7278)
 		burst = 0x3; /* 512 bytes */
 	else
 		burst = 0x2; /* 512 bytes */
@@ -924,17 +1091,16 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie)
 	u32p_replace_bits(&tmp, 1, PCIE_MISC_MISC_CTRL_PCIE_RCB_64B_MODE_MASK);
 	writel(tmp, base + PCIE_MISC_MISC_CTRL);
 
-	ret = brcm_pcie_get_rc_bar2_size_and_offset(pcie, &rc_bar2_size,
-						    &rc_bar2_offset);
-	if (ret)
-		return ret;
+	num_inbound_wins = brcm_pcie_get_inbound_wins(pcie, inbound_wins);
+	if (num_inbound_wins < 0)
+		return num_inbound_wins;
 
-	tmp = lower_32_bits(rc_bar2_offset);
-	u32p_replace_bits(&tmp, brcm_pcie_encode_ibar_size(rc_bar2_size),
-			  PCIE_MISC_RC_BAR2_CONFIG_LO_SIZE_MASK);
-	writel(tmp, base + PCIE_MISC_RC_BAR2_CONFIG_LO);
-	writel(upper_32_bits(rc_bar2_offset),
-	       base + PCIE_MISC_RC_BAR2_CONFIG_HI);
+	set_inbound_win_registers(pcie, inbound_wins, num_inbound_wins);
+
+	if (!brcm_pcie_rc_mode(pcie)) {
+		dev_err(pcie->dev, "PCIe RC controller misconfigured as Endpoint\n");
+		return -EINVAL;
+	}
 
 	tmp = readl(base + PCIE_MISC_MISC_CTRL);
 	for (memc = 0; memc < pcie->num_memc; memc++) {
@@ -956,25 +1122,12 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie)
 	 * 4GB or when the inbound area is smaller than 4GB (taking into
 	 * account the rounding-up we're forced to perform).
 	 */
-	if (rc_bar2_offset >= SZ_4G || (rc_bar2_size + rc_bar2_offset) < SZ_4G)
+	if (inbound_wins[2].pci_offset >= SZ_4G ||
+	    (inbound_wins[2].size + inbound_wins[2].pci_offset) < SZ_4G)
 		pcie->msi_target_addr = BRCM_MSI_TARGET_ADDR_LT_4GB;
 	else
 		pcie->msi_target_addr = BRCM_MSI_TARGET_ADDR_GT_4GB;
 
-	if (!brcm_pcie_rc_mode(pcie)) {
-		dev_err(pcie->dev, "PCIe RC controller misconfigured as Endpoint\n");
-		return -EINVAL;
-	}
-
-	/* disable the PCIe->GISB memory window (RC_BAR1) */
-	tmp = readl(base + PCIE_MISC_RC_BAR1_CONFIG_LO);
-	tmp &= ~PCIE_MISC_RC_BAR1_CONFIG_LO_SIZE_MASK;
-	writel(tmp, base + PCIE_MISC_RC_BAR1_CONFIG_LO);
-
-	/* disable the PCIe->SCB memory window (RC_BAR3) */
-	tmp = readl(base + PCIE_MISC_RC_BAR3_CONFIG_LO);
-	tmp &= ~PCIE_MISC_RC_BAR3_CONFIG_LO_SIZE_MASK;
-	writel(tmp, base + PCIE_MISC_RC_BAR3_CONFIG_LO);
 
 	/* Don't advertise L0s capability if 'aspm-no-l0s' */
 	aspm_support = PCIE_LINK_STATE_L1;
@@ -1025,7 +1178,7 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie)
 		num_out_wins++;
 	}
 
-	/* PCIe->SCB endian mode for BAR */
+	/* PCIe->SCB endian mode for inbound window */
 	tmp = readl(base + PCIE_RC_CFG_VENDOR_VENDOR_SPECIFIC_REG1);
 	u32p_replace_bits(&tmp, PCIE_RC_CFG_VENDOR_SPCIFIC_REG1_LITTLE_ENDIAN,
 		PCIE_RC_CFG_VENDOR_VENDOR_SPECIFIC_REG1_ENDIAN_MODE_BAR2_MASK);
@@ -1045,6 +1198,10 @@ static void brcm_extend_rbus_timeout(struct brcm_pcie *pcie)
 	const unsigned int REG_OFFSET = PCIE_RGR1_SW_INIT_1(pcie) - 8;
 	u32 timeout_us = 4000000; /* 4 seconds, our setting for L1SS */
 
+	/* 7712 does not have this (RGR1) timer */
+	if (pcie->soc_base == BCM7712)
+		return;
+
 	/* Each unit in timeout register is 1/216,000,000 seconds */
 	writel(216 * timeout_us, pcie->base + REG_OFFSET);
 }
@@ -1063,7 +1220,7 @@ static void brcm_config_clkreq(struct brcm_pcie *pcie)
 	}
 
 	/* Start out assuming safe mode (both mode bits cleared) */
-	clkreq_cntl = readl(pcie->base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	clkreq_cntl = readl(pcie->base + HARD_DEBUG(pcie));
 	clkreq_cntl &= ~PCIE_CLKREQ_MASK;
 
 	if (strcmp(mode, "no-l1ss") == 0) {
@@ -1106,7 +1263,7 @@ static void brcm_config_clkreq(struct brcm_pcie *pcie)
 			dev_err(pcie->dev, err_msg);
 		mode = "safe";
 	}
-	writel(clkreq_cntl, pcie->base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	writel(clkreq_cntl, pcie->base + HARD_DEBUG(pcie));
 
 	dev_info(pcie->dev, "clkreq-mode set to %s\n", mode);
 }
@@ -1120,7 +1277,9 @@ static int brcm_pcie_start_link(struct brcm_pcie *pcie)
 	int ret, i;
 
 	/* Unassert the fundamental reset */
-	pcie->perst_set(pcie, 0);
+	ret = pcie->perst_set(pcie, 0);
+	if (ret)
+		return ret;
 
 	/*
 	 * Wait for 100ms after PERST# deassertion; see PCIe CEM specification
@@ -1304,23 +1463,25 @@ static int brcm_phy_cntl(struct brcm_pcie *pcie, const int start)
 
 static inline int brcm_phy_start(struct brcm_pcie *pcie)
 {
-	return pcie->rescal ? brcm_phy_cntl(pcie, 1) : 0;
+	return pcie->has_phy ? brcm_phy_cntl(pcie, 1) : 0;
 }
 
 static inline int brcm_phy_stop(struct brcm_pcie *pcie)
 {
-	return pcie->rescal ? brcm_phy_cntl(pcie, 0) : 0;
+	return pcie->has_phy ? brcm_phy_cntl(pcie, 0) : 0;
 }
 
-static void brcm_pcie_turn_off(struct brcm_pcie *pcie)
+static int brcm_pcie_turn_off(struct brcm_pcie *pcie)
 {
 	void __iomem *base = pcie->base;
-	int tmp;
+	int tmp, ret;
 
 	if (brcm_pcie_link_up(pcie))
 		brcm_pcie_enter_l23(pcie);
 	/* Assert fundamental reset */
-	pcie->perst_set(pcie, 1);
+	ret = pcie->perst_set(pcie, 1);
+	if (ret)
+		return ret;
 
 	/* Deassert request for L23 in case it was asserted */
 	tmp = readl(base + PCIE_MISC_PCIE_CTRL);
@@ -1328,12 +1489,14 @@ static void brcm_pcie_turn_off(struct brcm_pcie *pcie)
 	writel(tmp, base + PCIE_MISC_PCIE_CTRL);
 
 	/* Turn off SerDes */
-	tmp = readl(base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	tmp = readl(base + HARD_DEBUG(pcie));
 	u32p_replace_bits(&tmp, 1, PCIE_MISC_HARD_PCIE_HARD_DEBUG_SERDES_IDDQ_MASK);
-	writel(tmp, base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	writel(tmp, base + HARD_DEBUG(pcie));
 
 	/* Shutdown PCIe bridge */
-	pcie->bridge_sw_init_set(pcie, 1);
+	ret = pcie->bridge_sw_init_set(pcie, 1);
+
+	return ret;
 }
 
 static int pci_dev_may_wakeup(struct pci_dev *dev, void *data)
@@ -1351,9 +1514,12 @@ static int brcm_pcie_suspend_noirq(struct device *dev)
 {
 	struct brcm_pcie *pcie = dev_get_drvdata(dev);
 	struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie);
-	int ret;
+	int ret, rret;
+
+	ret = brcm_pcie_turn_off(pcie);
+	if (ret)
+		return ret;
 
-	brcm_pcie_turn_off(pcie);
 	/*
 	 * If brcm_phy_stop() returns an error, just dev_err(). If we
 	 * return the error it will cause the suspend to fail and this is a
@@ -1382,7 +1548,10 @@ static int brcm_pcie_suspend_noirq(struct device *dev)
 						     pcie->sr->supplies);
 			if (ret) {
 				dev_err(dev, "Could not turn off regulators\n");
-				reset_control_reset(pcie->rescal);
+				rret = reset_control_reset(pcie->rescal);
+				if (rret)
+					dev_err(dev, "failed to reset 'rascal' controller ret=%d\n",
+						rret);
 				return ret;
 			}
 		}
@@ -1397,7 +1566,7 @@ static int brcm_pcie_resume_noirq(struct device *dev)
 	struct brcm_pcie *pcie = dev_get_drvdata(dev);
 	void __iomem *base;
 	u32 tmp;
-	int ret;
+	int ret, rret;
 
 	base = pcie->base;
 	ret = clk_prepare_enable(pcie->clk);
@@ -1416,9 +1585,9 @@ static int brcm_pcie_resume_noirq(struct device *dev)
 	pcie->bridge_sw_init_set(pcie, 0);
 
 	/* SERDES_IDDQ = 0 */
-	tmp = readl(base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	tmp = readl(base + HARD_DEBUG(pcie));
 	u32p_replace_bits(&tmp, 0, PCIE_MISC_HARD_PCIE_HARD_DEBUG_SERDES_IDDQ_MASK);
-	writel(tmp, base + PCIE_MISC_HARD_PCIE_HARD_DEBUG);
+	writel(tmp, base + HARD_DEBUG(pcie));
 
 	/* wait for serdes to be stable */
 	udelay(100);
@@ -1459,7 +1628,9 @@ err_regulator:
 	if (pcie->sr)
 		regulator_bulk_disable(pcie->sr->num_supplies, pcie->sr->supplies);
 err_reset:
-	reset_control_rearm(pcie->rescal);
+	rret = reset_control_rearm(pcie->rescal);
+	if (rret)
+		dev_err(pcie->dev, "failed to rearm 'rescal' reset, err=%d\n", rret);
 err_disable_clk:
 	clk_disable_unprepare(pcie->clk);
 	return ret;
@@ -1487,74 +1658,111 @@ static void brcm_pcie_remove(struct platform_device *pdev)
 }
 
 static const int pcie_offsets[] = {
-	[RGR1_SW_INIT_1] = 0x9210,
-	[EXT_CFG_INDEX]  = 0x9000,
-	[EXT_CFG_DATA]   = 0x9004,
+	[RGR1_SW_INIT_1]	= 0x9210,
+	[EXT_CFG_INDEX]		= 0x9000,
+	[EXT_CFG_DATA]		= 0x9004,
+	[PCIE_HARD_DEBUG]	= 0x4204,
+	[PCIE_INTR2_CPU_BASE]	= 0x4300,
 };
 
-static const int pcie_offsets_bmips_7425[] = {
-	[RGR1_SW_INIT_1] = 0x8010,
-	[EXT_CFG_INDEX]  = 0x8300,
-	[EXT_CFG_DATA]   = 0x8304,
+static const int pcie_offsets_bcm7278[] = {
+	[RGR1_SW_INIT_1]	= 0xc010,
+	[EXT_CFG_INDEX]		= 0x9000,
+	[EXT_CFG_DATA]		= 0x9004,
+	[PCIE_HARD_DEBUG]	= 0x4204,
+	[PCIE_INTR2_CPU_BASE]	= 0x4300,
 };
 
-static const struct pcie_cfg_data generic_cfg = {
-	.offsets	= pcie_offsets,
-	.type		= GENERIC,
-	.perst_set	= brcm_pcie_perst_set_generic,
-	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
+static const int pcie_offsets_bcm7425[] = {
+	[RGR1_SW_INIT_1]	= 0x8010,
+	[EXT_CFG_INDEX]		= 0x8300,
+	[EXT_CFG_DATA]		= 0x8304,
+	[PCIE_HARD_DEBUG]	= 0x4204,
+	[PCIE_INTR2_CPU_BASE]	= 0x4300,
 };
 
-static const struct pcie_cfg_data bcm7425_cfg = {
-	.offsets	= pcie_offsets_bmips_7425,
-	.type		= BCM7425,
+static const int pcie_offsets_bcm7712[] = {
+	[EXT_CFG_INDEX]		= 0x9000,
+	[EXT_CFG_DATA]		= 0x9004,
+	[PCIE_HARD_DEBUG]	= 0x4304,
+	[PCIE_INTR2_CPU_BASE]	= 0x4400,
+};
+
+static const struct pcie_cfg_data generic_cfg = {
+	.offsets	= pcie_offsets,
+	.soc_base	= GENERIC,
 	.perst_set	= brcm_pcie_perst_set_generic,
 	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
+	.num_inbound_wins = 3,
 };
 
-static const struct pcie_cfg_data bcm7435_cfg = {
+static const struct pcie_cfg_data bcm2711_cfg = {
 	.offsets	= pcie_offsets,
-	.type		= BCM7435,
+	.soc_base	= BCM2711,
 	.perst_set	= brcm_pcie_perst_set_generic,
 	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
+	.num_inbound_wins = 3,
 };
 
 static const struct pcie_cfg_data bcm4908_cfg = {
 	.offsets	= pcie_offsets,
-	.type		= BCM4908,
+	.soc_base	= BCM4908,
 	.perst_set	= brcm_pcie_perst_set_4908,
 	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
-};
-
-static const int pcie_offset_bcm7278[] = {
-	[RGR1_SW_INIT_1] = 0xc010,
-	[EXT_CFG_INDEX] = 0x9000,
-	[EXT_CFG_DATA] = 0x9004,
+	.num_inbound_wins = 3,
 };
 
 static const struct pcie_cfg_data bcm7278_cfg = {
-	.offsets	= pcie_offset_bcm7278,
-	.type		= BCM7278,
+	.offsets	= pcie_offsets_bcm7278,
+	.soc_base	= BCM7278,
 	.perst_set	= brcm_pcie_perst_set_7278,
 	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_7278,
+	.num_inbound_wins = 3,
 };
 
-static const struct pcie_cfg_data bcm2711_cfg = {
+static const struct pcie_cfg_data bcm7425_cfg = {
+	.offsets	= pcie_offsets_bcm7425,
+	.soc_base	= BCM7425,
+	.perst_set	= brcm_pcie_perst_set_generic,
+	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
+	.num_inbound_wins = 3,
+};
+
+static const struct pcie_cfg_data bcm7435_cfg = {
 	.offsets	= pcie_offsets,
-	.type		= BCM2711,
+	.soc_base	= BCM7435,
 	.perst_set	= brcm_pcie_perst_set_generic,
 	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
+	.num_inbound_wins = 3,
+};
+
+static const struct pcie_cfg_data bcm7216_cfg = {
+	.offsets	= pcie_offsets_bcm7278,
+	.soc_base	= BCM7278,
+	.perst_set	= brcm_pcie_perst_set_7278,
+	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_7278,
+	.has_phy	= true,
+	.num_inbound_wins = 3,
+};
+
+static const struct pcie_cfg_data bcm7712_cfg = {
+	.offsets	= pcie_offsets_bcm7712,
+	.perst_set	= brcm_pcie_perst_set_7278,
+	.bridge_sw_init_set = brcm_pcie_bridge_sw_init_set_generic,
+	.soc_base	= BCM7712,
+	.num_inbound_wins = 10,
 };
 
 static const struct of_device_id brcm_pcie_match[] = {
 	{ .compatible = "brcm,bcm2711-pcie", .data = &bcm2711_cfg },
 	{ .compatible = "brcm,bcm4908-pcie", .data = &bcm4908_cfg },
 	{ .compatible = "brcm,bcm7211-pcie", .data = &generic_cfg },
+	{ .compatible = "brcm,bcm7216-pcie", .data = &bcm7216_cfg },
 	{ .compatible = "brcm,bcm7278-pcie", .data = &bcm7278_cfg },
-	{ .compatible = "brcm,bcm7216-pcie", .data = &bcm7278_cfg },
-	{ .compatible = "brcm,bcm7445-pcie", .data = &generic_cfg },
-	{ .compatible = "brcm,bcm7435-pcie", .data = &bcm7435_cfg },
 	{ .compatible = "brcm,bcm7425-pcie", .data = &bcm7425_cfg },
+	{ .compatible = "brcm,bcm7435-pcie", .data = &bcm7435_cfg },
+	{ .compatible = "brcm,bcm7445-pcie", .data = &generic_cfg },
+	{ .compatible = "brcm,bcm7712-pcie", .data = &bcm7712_cfg },
 	{},
 };
 
@@ -1596,9 +1804,11 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 	pcie->dev = &pdev->dev;
 	pcie->np = np;
 	pcie->reg_offsets = data->offsets;
-	pcie->type = data->type;
+	pcie->soc_base = data->soc_base;
 	pcie->perst_set = data->perst_set;
 	pcie->bridge_sw_init_set = data->bridge_sw_init_set;
+	pcie->has_phy = data->has_phy;
+	pcie->num_inbound_wins = data->num_inbound_wins;
 
 	pcie->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(pcie->base))
@@ -1613,25 +1823,52 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 
 	pcie->ssc = of_property_read_bool(np, "brcm,enable-ssc");
 
-	ret = clk_prepare_enable(pcie->clk);
-	if (ret) {
-		dev_err(&pdev->dev, "could not enable clock\n");
-		return ret;
-	}
 	pcie->rescal = devm_reset_control_get_optional_shared(&pdev->dev, "rescal");
-	if (IS_ERR(pcie->rescal)) {
-		clk_disable_unprepare(pcie->clk);
+	if (IS_ERR(pcie->rescal))
 		return PTR_ERR(pcie->rescal);
-	}
+
 	pcie->perst_reset = devm_reset_control_get_optional_exclusive(&pdev->dev, "perst");
-	if (IS_ERR(pcie->perst_reset)) {
-		clk_disable_unprepare(pcie->clk);
+	if (IS_ERR(pcie->perst_reset))
 		return PTR_ERR(pcie->perst_reset);
+
+	pcie->bridge_reset = devm_reset_control_get_optional_exclusive(&pdev->dev, "bridge");
+	if (IS_ERR(pcie->bridge_reset))
+		return PTR_ERR(pcie->bridge_reset);
+
+	pcie->swinit_reset = devm_reset_control_get_optional_exclusive(&pdev->dev, "swinit");
+	if (IS_ERR(pcie->swinit_reset))
+		return PTR_ERR(pcie->swinit_reset);
+
+	ret = clk_prepare_enable(pcie->clk);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "could not enable clock\n");
+
+	pcie->bridge_sw_init_set(pcie, 0);
+
+	if (pcie->swinit_reset) {
+		ret = reset_control_assert(pcie->swinit_reset);
+		if (ret) {
+			clk_disable_unprepare(pcie->clk);
+			return dev_err_probe(&pdev->dev, ret,
+					     "could not assert reset 'swinit'\n");
+		}
+
+		/* HW team recommends 1us for proper sync and propagation of reset */
+		udelay(1);
+
+		ret = reset_control_deassert(pcie->swinit_reset);
+		if (ret) {
+			clk_disable_unprepare(pcie->clk);
+			return dev_err_probe(&pdev->dev, ret,
+					     "could not de-assert reset 'swinit'\n");
+		}
 	}
 
 	ret = reset_control_reset(pcie->rescal);
-	if (ret)
-		dev_err(&pdev->dev, "failed to deassert 'rescal'\n");
+	if (ret) {
+		clk_disable_unprepare(pcie->clk);
+		return dev_err_probe(&pdev->dev, ret, "failed to deassert 'rescal'\n");
+	}
 
 	ret = brcm_phy_start(pcie);
 	if (ret) {
@@ -1645,7 +1882,7 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 		goto fail;
 
 	pcie->hw_rev = readl(pcie->base + PCIE_MISC_REVISION);
-	if (pcie->type == BCM4908 && pcie->hw_rev >= BRCM_PCIE_HW_REV_3_20) {
+	if (pcie->soc_base == BCM4908 && pcie->hw_rev >= BRCM_PCIE_HW_REV_3_20) {
 		dev_err(pcie->dev, "hardware revision with unsupported PERST# setup\n");
 		ret = -ENODEV;
 		goto fail;
@@ -1660,7 +1897,7 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 		}
 	}
 
-	bridge->ops = pcie->type == BCM7425 ? &brcm7425_pcie_ops : &brcm_pcie_ops;
+	bridge->ops = pcie->soc_base == BCM7425 ? &brcm7425_pcie_ops : &brcm_pcie_ops;
 	bridge->sysdata = pcie;
 
 	platform_set_drvdata(pdev, pcie);
@@ -1678,6 +1915,7 @@ static int brcm_pcie_probe(struct platform_device *pdev)
 
 fail:
 	__brcm_pcie_remove(pcie);
+
 	return ret;
 }
 
diff --git a/drivers/pci/controller/pcie-iproc.c b/drivers/pci/controller/pcie-iproc.c
index 97f739a2c9f8..22134e95574b 100644
--- a/drivers/pci/controller/pcie-iproc.c
+++ b/drivers/pci/controller/pcie-iproc.c
@@ -54,7 +54,7 @@
 
 #define CFG_RD_SUCCESS			0
 #define CFG_RD_UR			1
-#define CFG_RD_CRS			2
+#define CFG_RD_RRS			2
 #define CFG_RD_CA			3
 #define CFG_RETRY_STATUS		0xffff0001
 #define CFG_RETRY_STATUS_TIMEOUT_US	500000 /* 500 milliseconds */
@@ -485,31 +485,31 @@ static unsigned int iproc_pcie_cfg_retry(struct iproc_pcie *pcie,
 	u32 status;
 
 	/*
-	 * As per PCIe spec r3.1, sec 2.3.2, CRS Software Visibility only
+	 * As per PCIe r6.0, sec 2.3.2, Config RRS Software Visibility only
 	 * affects config reads of the Vendor ID.  For config writes or any
 	 * other config reads, the Root may automatically reissue the
 	 * configuration request again as a new request.
 	 *
 	 * For config reads, this hardware returns CFG_RETRY_STATUS data
-	 * when it receives a CRS completion, regardless of the address of
-	 * the read or the CRS Software Visibility Enable bit.  As a
+	 * when it receives a RRS completion, regardless of the address of
+	 * the read or the RRS Software Visibility Enable bit.  As a
 	 * partial workaround for this, we retry in software any read that
 	 * returns CFG_RETRY_STATUS.
 	 *
 	 * Note that a non-Vendor ID config register may have a value of
 	 * CFG_RETRY_STATUS.  If we read that, we can't distinguish it from
-	 * a CRS completion, so we will incorrectly retry the read and
+	 * a RRS completion, so we will incorrectly retry the read and
 	 * eventually return the wrong data (0xffffffff).
 	 */
 	data = readl(cfg_data_p);
 	while (data == CFG_RETRY_STATUS && timeout--) {
 		/*
-		 * CRS state is set in CFG_RD status register
+		 * RRS state is set in CFG_RD status register
 		 * This will handle the case where CFG_RETRY_STATUS is
 		 * valid config data.
 		 */
 		status = iproc_pcie_read_reg(pcie, IPROC_PCIE_CFG_RD_STATUS);
-		if (status != CFG_RD_CRS)
+		if (status != CFG_RD_RRS)
 			return data;
 
 		udelay(1);
@@ -556,8 +556,8 @@ static void iproc_pcie_fix_cap(struct iproc_pcie *pcie, int where, u32 *val)
 		break;
 
 	case IPROC_PCI_EXP_CAP + PCI_EXP_RTCTL:
-		/* Don't advertise CRS SV support */
-		*val &= ~(PCI_EXP_RTCAP_CRSVIS << 16);
+		/* Don't advertise RRS SV support */
+		*val &= ~(PCI_EXP_RTCAP_RRS_SV << 16);
 		break;
 
 	default:
diff --git a/drivers/pci/controller/pcie-mediatek-gen3.c b/drivers/pci/controller/pcie-mediatek-gen3.c
index b7e8e24f6a40..66ce4b5d309b 100644
--- a/drivers/pci/controller/pcie-mediatek-gen3.c
+++ b/drivers/pci/controller/pcie-mediatek-gen3.c
@@ -6,7 +6,9 @@
  * Author: Jianjun Wang <jianjun.wang@mediatek.com>
  */
 
+#include <linux/bitfield.h>
 #include <linux/clk.h>
+#include <linux/clk-provider.h>
 #include <linux/delay.h>
 #include <linux/iopoll.h>
 #include <linux/irq.h>
@@ -15,6 +17,8 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/msi.h>
+#include <linux/of_device.h>
+#include <linux/of_pci.h>
 #include <linux/pci.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
@@ -29,6 +33,12 @@
 #define PCI_CLASS(class)		(class << 8)
 #define PCIE_RC_MODE			BIT(0)
 
+#define PCIE_EQ_PRESET_01_REG		0x100
+#define PCIE_VAL_LN0_DOWNSTREAM		GENMASK(6, 0)
+#define PCIE_VAL_LN0_UPSTREAM		GENMASK(14, 8)
+#define PCIE_VAL_LN1_DOWNSTREAM		GENMASK(22, 16)
+#define PCIE_VAL_LN1_UPSTREAM		GENMASK(30, 24)
+
 #define PCIE_CFGNUM_REG			0x140
 #define PCIE_CFG_DEVFN(devfn)		((devfn) & GENMASK(7, 0))
 #define PCIE_CFG_BUS(bus)		(((bus) << 8) & GENMASK(15, 8))
@@ -68,6 +78,14 @@
 #define PCIE_MSI_SET_ENABLE_REG		0x190
 #define PCIE_MSI_SET_ENABLE		GENMASK(PCIE_MSI_SET_NUM - 1, 0)
 
+#define PCIE_PIPE4_PIE8_REG		0x338
+#define PCIE_K_FINETUNE_MAX		GENMASK(5, 0)
+#define PCIE_K_FINETUNE_ERR		GENMASK(7, 6)
+#define PCIE_K_PRESET_TO_USE		GENMASK(18, 8)
+#define PCIE_K_PHYPARAM_QUERY		BIT(19)
+#define PCIE_K_QUERY_TIMEOUT		BIT(20)
+#define PCIE_K_PRESET_TO_USE_16G	GENMASK(31, 21)
+
 #define PCIE_MSI_SET_BASE_REG		0xc00
 #define PCIE_MSI_SET_OFFSET		0x10
 #define PCIE_MSI_SET_STATUS_OFFSET	0x04
@@ -100,6 +118,26 @@
 #define PCIE_ATR_TLP_TYPE_MEM		PCIE_ATR_TLP_TYPE(0)
 #define PCIE_ATR_TLP_TYPE_IO		PCIE_ATR_TLP_TYPE(2)
 
+#define MAX_NUM_PHY_RESETS		3
+
+/* Time in ms needed to complete PCIe reset on EN7581 SoC */
+#define PCIE_EN7581_RESET_TIME_MS	100
+
+struct mtk_gen3_pcie;
+
+/**
+ * struct mtk_gen3_pcie_pdata - differentiate between host generations
+ * @power_up: pcie power_up callback
+ * @phy_resets: phy reset lines SoC data.
+ */
+struct mtk_gen3_pcie_pdata {
+	int (*power_up)(struct mtk_gen3_pcie *pcie);
+	struct {
+		const char *id[MAX_NUM_PHY_RESETS];
+		int num_resets;
+	} phy_resets;
+};
+
 /**
  * struct mtk_msi_set - MSI information for each set
  * @base: IO mapped register base
@@ -118,7 +156,7 @@ struct mtk_msi_set {
  * @base: IO mapped register base
  * @reg_base: physical register base
  * @mac_reset: MAC reset control
- * @phy_reset: PHY reset control
+ * @phy_resets: PHY reset controllers
  * @phy: PHY controller block
  * @clks: PCIe clocks
  * @num_clks: PCIe clocks count for this port
@@ -131,13 +169,14 @@ struct mtk_msi_set {
  * @msi_sets: MSI sets information
  * @lock: lock protecting IRQ bit map
  * @msi_irq_in_use: bit map for assigned MSI IRQ
+ * @soc: pointer to SoC-dependent operations
  */
 struct mtk_gen3_pcie {
 	struct device *dev;
 	void __iomem *base;
 	phys_addr_t reg_base;
 	struct reset_control *mac_reset;
-	struct reset_control *phy_reset;
+	struct reset_control_bulk_data phy_resets[MAX_NUM_PHY_RESETS];
 	struct phy *phy;
 	struct clk_bulk_data *clks;
 	int num_clks;
@@ -151,6 +190,8 @@ struct mtk_gen3_pcie {
 	struct mtk_msi_set msi_sets[PCIE_MSI_SET_NUM];
 	struct mutex lock;
 	DECLARE_BITMAP(msi_irq_in_use, PCIE_MSI_IRQS_NUM);
+
+	const struct mtk_gen3_pcie_pdata *soc;
 };
 
 /* LTSSM state in PCIE_LTSSM_STATUS_REG bit[28:24] */
@@ -424,12 +465,6 @@ static int mtk_pcie_startup_port(struct mtk_gen3_pcie *pcie)
 	return 0;
 }
 
-static int mtk_pcie_set_affinity(struct irq_data *data,
-				 const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void mtk_pcie_msi_irq_mask(struct irq_data *data)
 {
 	pci_msi_mask_irq(data);
@@ -450,8 +485,9 @@ static struct irq_chip mtk_msi_irq_chip = {
 };
 
 static struct msi_domain_info mtk_msi_domain_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_PCI_MSIX | MSI_FLAG_MULTI_PCI_MSI),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX |
+		  MSI_FLAG_MULTI_PCI_MSI,
 	.chip	= &mtk_msi_irq_chip,
 };
 
@@ -517,7 +553,6 @@ static struct irq_chip mtk_msi_bottom_irq_chip = {
 	.irq_mask		= mtk_msi_bottom_irq_mask,
 	.irq_unmask		= mtk_msi_bottom_irq_unmask,
 	.irq_compose_msi_msg	= mtk_compose_msi_msg,
-	.irq_set_affinity	= mtk_pcie_set_affinity,
 	.name			= "MSI",
 };
 
@@ -618,7 +653,6 @@ static struct irq_chip mtk_intx_irq_chip = {
 	.irq_mask		= mtk_intx_mask,
 	.irq_unmask		= mtk_intx_unmask,
 	.irq_eoi		= mtk_intx_eoi,
-	.irq_set_affinity	= mtk_pcie_set_affinity,
 	.name			= "INTx",
 };
 
@@ -775,10 +809,10 @@ static int mtk_pcie_setup_irq(struct mtk_gen3_pcie *pcie)
 
 static int mtk_pcie_parse_port(struct mtk_gen3_pcie *pcie)
 {
+	int i, ret, num_resets = pcie->soc->phy_resets.num_resets;
 	struct device *dev = pcie->dev;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct resource *regs;
-	int ret;
 
 	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcie-mac");
 	if (!regs)
@@ -791,12 +825,12 @@ static int mtk_pcie_parse_port(struct mtk_gen3_pcie *pcie)
 
 	pcie->reg_base = regs->start;
 
-	pcie->phy_reset = devm_reset_control_get_optional_exclusive(dev, "phy");
-	if (IS_ERR(pcie->phy_reset)) {
-		ret = PTR_ERR(pcie->phy_reset);
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "failed to get PHY reset\n");
+	for (i = 0; i < num_resets; i++)
+		pcie->phy_resets[i].id = pcie->soc->phy_resets.id[i];
 
+	ret = devm_reset_control_bulk_get_optional_shared(dev, num_resets, pcie->phy_resets);
+	if (ret) {
+		dev_err(dev, "failed to get PHY bulk reset\n");
 		return ret;
 	}
 
@@ -827,13 +861,96 @@ static int mtk_pcie_parse_port(struct mtk_gen3_pcie *pcie)
 	return 0;
 }
 
+static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie)
+{
+	struct device *dev = pcie->dev;
+	int err;
+	u32 val;
+
+	/*
+	 * Wait for the time needed to complete the bulk assert in
+	 * mtk_pcie_setup for EN7581 SoC.
+	 */
+	mdelay(PCIE_EN7581_RESET_TIME_MS);
+
+	err = phy_init(pcie->phy);
+	if (err) {
+		dev_err(dev, "failed to initialize PHY\n");
+		return err;
+	}
+
+	err = phy_power_on(pcie->phy);
+	if (err) {
+		dev_err(dev, "failed to power on PHY\n");
+		goto err_phy_on;
+	}
+
+	err = reset_control_bulk_deassert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
+	if (err) {
+		dev_err(dev, "failed to deassert PHYs\n");
+		goto err_phy_deassert;
+	}
+
+	/*
+	 * Wait for the time needed to complete the bulk de-assert above.
+	 * This time is specific for EN7581 SoC.
+	 */
+	mdelay(PCIE_EN7581_RESET_TIME_MS);
+
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+
+	err = clk_bulk_prepare(pcie->num_clks, pcie->clks);
+	if (err) {
+		dev_err(dev, "failed to prepare clock\n");
+		goto err_clk_prepare;
+	}
+
+	val = FIELD_PREP(PCIE_VAL_LN0_DOWNSTREAM, 0x47) |
+	      FIELD_PREP(PCIE_VAL_LN1_DOWNSTREAM, 0x47) |
+	      FIELD_PREP(PCIE_VAL_LN0_UPSTREAM, 0x41) |
+	      FIELD_PREP(PCIE_VAL_LN1_UPSTREAM, 0x41);
+	writel_relaxed(val, pcie->base + PCIE_EQ_PRESET_01_REG);
+
+	val = PCIE_K_PHYPARAM_QUERY | PCIE_K_QUERY_TIMEOUT |
+	      FIELD_PREP(PCIE_K_PRESET_TO_USE_16G, 0x80) |
+	      FIELD_PREP(PCIE_K_PRESET_TO_USE, 0x2) |
+	      FIELD_PREP(PCIE_K_FINETUNE_MAX, 0xf);
+	writel_relaxed(val, pcie->base + PCIE_PIPE4_PIE8_REG);
+
+	err = clk_bulk_enable(pcie->num_clks, pcie->clks);
+	if (err) {
+		dev_err(dev, "failed to prepare clock\n");
+		goto err_clk_enable;
+	}
+
+	return 0;
+
+err_clk_enable:
+	clk_bulk_unprepare(pcie->num_clks, pcie->clks);
+err_clk_prepare:
+	pm_runtime_put_sync(dev);
+	pm_runtime_disable(dev);
+	reset_control_bulk_assert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
+err_phy_deassert:
+	phy_power_off(pcie->phy);
+err_phy_on:
+	phy_exit(pcie->phy);
+
+	return err;
+}
+
 static int mtk_pcie_power_up(struct mtk_gen3_pcie *pcie)
 {
 	struct device *dev = pcie->dev;
 	int err;
 
 	/* PHY power on and enable pipe clock */
-	reset_control_deassert(pcie->phy_reset);
+	err = reset_control_bulk_deassert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
+	if (err) {
+		dev_err(dev, "failed to deassert PHYs\n");
+		return err;
+	}
 
 	err = phy_init(pcie->phy);
 	if (err) {
@@ -869,7 +986,7 @@ err_clk_init:
 err_phy_on:
 	phy_exit(pcie->phy);
 err_phy_init:
-	reset_control_assert(pcie->phy_reset);
+	reset_control_bulk_assert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
 
 	return err;
 }
@@ -884,7 +1001,7 @@ static void mtk_pcie_power_down(struct mtk_gen3_pcie *pcie)
 
 	phy_power_off(pcie->phy);
 	phy_exit(pcie->phy);
-	reset_control_assert(pcie->phy_reset);
+	reset_control_bulk_assert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
 }
 
 static int mtk_pcie_setup(struct mtk_gen3_pcie *pcie)
@@ -896,15 +1013,21 @@ static int mtk_pcie_setup(struct mtk_gen3_pcie *pcie)
 		return err;
 
 	/*
+	 * Deassert the line in order to avoid unbalance in deassert_count
+	 * counter since the bulk is shared.
+	 */
+	reset_control_bulk_deassert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
+	/*
 	 * The controller may have been left out of reset by the bootloader
 	 * so make sure that we get a clean start by asserting resets here.
 	 */
-	reset_control_assert(pcie->phy_reset);
+	reset_control_bulk_assert(pcie->soc->phy_resets.num_resets, pcie->phy_resets);
+
 	reset_control_assert(pcie->mac_reset);
 	usleep_range(10, 20);
 
 	/* Don't touch the hardware registers before power up */
-	err = mtk_pcie_power_up(pcie);
+	err = pcie->soc->power_up(pcie);
 	if (err)
 		return err;
 
@@ -939,6 +1062,7 @@ static int mtk_pcie_probe(struct platform_device *pdev)
 	pcie = pci_host_bridge_priv(host);
 
 	pcie->dev = dev;
+	pcie->soc = device_get_match_data(dev);
 	platform_set_drvdata(pdev, pcie);
 
 	err = mtk_pcie_setup(pcie);
@@ -1054,7 +1178,7 @@ static int mtk_pcie_resume_noirq(struct device *dev)
 	struct mtk_gen3_pcie *pcie = dev_get_drvdata(dev);
 	int err;
 
-	err = mtk_pcie_power_up(pcie);
+	err = pcie->soc->power_up(pcie);
 	if (err)
 		return err;
 
@@ -1074,8 +1198,27 @@ static const struct dev_pm_ops mtk_pcie_pm_ops = {
 				  mtk_pcie_resume_noirq)
 };
 
+static const struct mtk_gen3_pcie_pdata mtk_pcie_soc_mt8192 = {
+	.power_up = mtk_pcie_power_up,
+	.phy_resets = {
+		.id[0] = "phy",
+		.num_resets = 1,
+	},
+};
+
+static const struct mtk_gen3_pcie_pdata mtk_pcie_soc_en7581 = {
+	.power_up = mtk_pcie_en7581_power_up,
+	.phy_resets = {
+		.id[0] = "phy-lane0",
+		.id[1] = "phy-lane1",
+		.id[2] = "phy-lane2",
+		.num_resets = 3,
+	},
+};
+
 static const struct of_device_id mtk_pcie_of_match[] = {
-	{ .compatible = "mediatek,mt8192-pcie" },
+	{ .compatible = "airoha,en7581-pcie", .data = &mtk_pcie_soc_en7581 },
+	{ .compatible = "mediatek,mt8192-pcie", .data = &mtk_pcie_soc_mt8192 },
 	{},
 };
 MODULE_DEVICE_TABLE(of, mtk_pcie_of_match);
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 7fc0d7709b7f..7f7d04c2ea57 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -211,7 +211,6 @@ struct mtk_pcie_port {
  * @base: IO mapped register base
  * @cfg: IO mapped register map for PCIe config
  * @free_ck: free-run reference clock
- * @mem: non-prefetchable memory resource
  * @ports: pointer to PCIe port information
  * @soc: pointer to SoC-dependent operations
  */
@@ -407,12 +406,6 @@ static void mtk_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 		(int)data->hwirq, msg->address_hi, msg->address_lo);
 }
 
-static int mtk_msi_set_affinity(struct irq_data *irq_data,
-				const struct cpumask *mask, bool force)
-{
-	 return -EINVAL;
-}
-
 static void mtk_msi_ack_irq(struct irq_data *data)
 {
 	struct mtk_pcie_port *port = irq_data_get_irq_chip_data(data);
@@ -424,7 +417,6 @@ static void mtk_msi_ack_irq(struct irq_data *data)
 static struct irq_chip mtk_msi_bottom_irq_chip = {
 	.name			= "MTK MSI",
 	.irq_compose_msi_msg	= mtk_compose_msi_msg,
-	.irq_set_affinity	= mtk_msi_set_affinity,
 	.irq_ack		= mtk_msi_ack_irq,
 };
 
@@ -486,8 +478,8 @@ static struct irq_chip mtk_msi_irq_chip = {
 };
 
 static struct msi_domain_info mtk_msi_domain_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_PCI_MSIX),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX,
 	.chip	= &mtk_msi_irq_chip,
 };
 
diff --git a/drivers/pci/controller/pcie-rcar-host.c b/drivers/pci/controller/pcie-rcar-host.c
index c01efc6ea64f..3dd653f3d784 100644
--- a/drivers/pci/controller/pcie-rcar-host.c
+++ b/drivers/pci/controller/pcie-rcar-host.c
@@ -658,11 +658,6 @@ static void rcar_msi_irq_unmask(struct irq_data *d)
 	spin_unlock_irqrestore(&msi->mask_lock, flags);
 }
 
-static int rcar_msi_set_affinity(struct irq_data *d, const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void rcar_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 {
 	struct rcar_msi *msi = irq_data_get_irq_chip_data(data);
@@ -678,7 +673,6 @@ static struct irq_chip rcar_msi_bottom_chip = {
 	.irq_ack		= rcar_msi_irq_ack,
 	.irq_mask		= rcar_msi_irq_mask,
 	.irq_unmask		= rcar_msi_irq_unmask,
-	.irq_set_affinity 	= rcar_msi_set_affinity,
 	.irq_compose_msi_msg	= rcar_compose_msi_msg,
 };
 
@@ -725,8 +719,8 @@ static const struct irq_domain_ops rcar_msi_domain_ops = {
 };
 
 static struct msi_domain_info rcar_msi_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		   MSI_FLAG_MULTI_PCI_MSI),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY | MSI_FLAG_MULTI_PCI_MSI,
 	.chip	= &rcar_msi_top_chip,
 };
 
diff --git a/drivers/pci/controller/pcie-xilinx-dma-pl.c b/drivers/pci/controller/pcie-xilinx-dma-pl.c
index 5be5dfd8398f..dd117f07fc95 100644
--- a/drivers/pci/controller/pcie-xilinx-dma-pl.c
+++ b/drivers/pci/controller/pcie-xilinx-dma-pl.c
@@ -71,10 +71,24 @@
 
 /* Phy Status/Control Register definitions */
 #define XILINX_PCIE_DMA_REG_PSCR_LNKUP	BIT(11)
+#define QDMA_BRIDGE_BASE_OFF		0xcd8
 
 /* Number of MSI IRQs */
 #define XILINX_NUM_MSI_IRQS	64
 
+enum xilinx_pl_dma_version {
+	XDMA,
+	QDMA,
+};
+
+/**
+ * struct xilinx_pl_dma_variant - PL DMA PCIe variant information
+ * @version: DMA version
+ */
+struct xilinx_pl_dma_variant {
+	enum xilinx_pl_dma_version version;
+};
+
 struct xilinx_msi {
 	struct irq_domain	*msi_domain;
 	unsigned long		*bitmap;
@@ -88,6 +102,7 @@ struct xilinx_msi {
  * struct pl_dma_pcie - PCIe port information
  * @dev: Device pointer
  * @reg_base: IO Mapped Register Base
+ * @cfg_base: IO Mapped Configuration Base
  * @irq: Interrupt number
  * @cfg: Holds mappings of config space window
  * @phys_reg_base: Physical address of reg base
@@ -97,10 +112,12 @@ struct xilinx_msi {
  * @msi: MSI information
  * @intx_irq: INTx error interrupt number
  * @lock: Lock protecting shared register access
+ * @variant: PL DMA PCIe version check pointer
  */
 struct pl_dma_pcie {
 	struct device			*dev;
 	void __iomem			*reg_base;
+	void __iomem			*cfg_base;
 	int				irq;
 	struct pci_config_window	*cfg;
 	phys_addr_t			phys_reg_base;
@@ -110,16 +127,23 @@ struct pl_dma_pcie {
 	struct xilinx_msi		msi;
 	int				intx_irq;
 	raw_spinlock_t			lock;
+	const struct xilinx_pl_dma_variant   *variant;
 };
 
 static inline u32 pcie_read(struct pl_dma_pcie *port, u32 reg)
 {
+	if (port->variant->version == QDMA)
+		return readl(port->reg_base + reg + QDMA_BRIDGE_BASE_OFF);
+
 	return readl(port->reg_base + reg);
 }
 
 static inline void pcie_write(struct pl_dma_pcie *port, u32 val, u32 reg)
 {
-	writel(val, port->reg_base + reg);
+	if (port->variant->version == QDMA)
+		writel(val, port->reg_base + reg + QDMA_BRIDGE_BASE_OFF);
+	else
+		writel(val, port->reg_base + reg);
 }
 
 static inline bool xilinx_pl_dma_pcie_link_up(struct pl_dma_pcie *port)
@@ -173,6 +197,9 @@ static void __iomem *xilinx_pl_dma_pcie_map_bus(struct pci_bus *bus,
 	if (!xilinx_pl_dma_pcie_valid_device(bus, devfn))
 		return NULL;
 
+	if (port->variant->version == QDMA)
+		return port->cfg_base + PCIE_ECAM_OFFSET(bus->number, devfn, where);
+
 	return port->reg_base + PCIE_ECAM_OFFSET(bus->number, devfn, where);
 }
 
@@ -355,8 +382,8 @@ static struct irq_chip xilinx_msi_irq_chip = {
 };
 
 static struct msi_domain_info xilinx_msi_domain_info = {
-	.flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		MSI_FLAG_MULTI_PCI_MSI),
+	.flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		 MSI_FLAG_NO_AFFINITY | MSI_FLAG_MULTI_PCI_MSI,
 	.chip = &xilinx_msi_irq_chip,
 };
 
@@ -370,16 +397,9 @@ static void xilinx_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 	msg->data = data->hwirq;
 }
 
-static int xilinx_msi_set_affinity(struct irq_data *irq_data,
-				   const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static struct irq_chip xilinx_irq_chip = {
 	.name = "pl_dma:MSI",
 	.irq_compose_msi_msg = xilinx_compose_msi_msg,
-	.irq_set_affinity = xilinx_msi_set_affinity,
 };
 
 static int xilinx_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
@@ -731,6 +751,15 @@ static int xilinx_pl_dma_pcie_parse_dt(struct pl_dma_pcie *port,
 
 	port->reg_base = port->cfg->win;
 
+	if (port->variant->version == QDMA) {
+		port->cfg_base = port->cfg->win;
+		res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "breg");
+		port->reg_base = devm_ioremap_resource(dev, res);
+		if (IS_ERR(port->reg_base))
+			return PTR_ERR(port->reg_base);
+		port->phys_reg_base = res->start;
+	}
+
 	err = xilinx_request_msi_irq(port);
 	if (err) {
 		pci_ecam_free(port->cfg);
@@ -760,6 +789,8 @@ static int xilinx_pl_dma_pcie_probe(struct platform_device *pdev)
 	if (!bus)
 		return -ENODEV;
 
+	port->variant = of_device_get_match_data(dev);
+
 	err = xilinx_pl_dma_pcie_parse_dt(port, bus->res);
 	if (err) {
 		dev_err(dev, "Parsing DT failed\n");
@@ -791,9 +822,22 @@ err_irq_domain:
 	return err;
 }
 
+static const struct xilinx_pl_dma_variant xdma_host = {
+	.version = XDMA,
+};
+
+static const struct xilinx_pl_dma_variant qdma_host = {
+	.version = QDMA,
+};
+
 static const struct of_device_id xilinx_pl_dma_pcie_of_match[] = {
 	{
 		.compatible = "xlnx,xdma-host-3.00",
+		.data = &xdma_host,
+	},
+	{
+		.compatible = "xlnx,qdma-host-3.00",
+		.data = &qdma_host,
 	},
 	{}
 };
diff --git a/drivers/pci/controller/pcie-xilinx-nwl.c b/drivers/pci/controller/pcie-xilinx-nwl.c
index 0408f4d612b5..a8ae14474dd0 100644
--- a/drivers/pci/controller/pcie-xilinx-nwl.c
+++ b/drivers/pci/controller/pcie-xilinx-nwl.c
@@ -19,6 +19,7 @@
 #include <linux/of_platform.h>
 #include <linux/pci.h>
 #include <linux/pci-ecam.h>
+#include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/irqchip/chained_irq.h>
 
@@ -80,8 +81,8 @@
 #define MSGF_MISC_SR_NON_FATAL_DEV	BIT(22)
 #define MSGF_MISC_SR_FATAL_DEV		BIT(23)
 #define MSGF_MISC_SR_LINK_DOWN		BIT(24)
-#define MSGF_MSIC_SR_LINK_AUTO_BWIDTH	BIT(25)
-#define MSGF_MSIC_SR_LINK_BWIDTH	BIT(26)
+#define MSGF_MISC_SR_LINK_AUTO_BWIDTH	BIT(25)
+#define MSGF_MISC_SR_LINK_BWIDTH	BIT(26)
 
 #define MSGF_MISC_SR_MASKALL		(MSGF_MISC_SR_RXMSG_AVAIL | \
 					MSGF_MISC_SR_RXMSG_OVER | \
@@ -96,8 +97,8 @@
 					MSGF_MISC_SR_NON_FATAL_DEV | \
 					MSGF_MISC_SR_FATAL_DEV | \
 					MSGF_MISC_SR_LINK_DOWN | \
-					MSGF_MSIC_SR_LINK_AUTO_BWIDTH | \
-					MSGF_MSIC_SR_LINK_BWIDTH)
+					MSGF_MISC_SR_LINK_AUTO_BWIDTH | \
+					MSGF_MISC_SR_LINK_BWIDTH)
 
 /* Legacy interrupt status mask bits */
 #define MSGF_LEG_SR_INTA		BIT(0)
@@ -157,6 +158,7 @@ struct nwl_pcie {
 	void __iomem *breg_base;
 	void __iomem *pcireg_base;
 	void __iomem *ecam_base;
+	struct phy *phy[4];
 	phys_addr_t phys_breg_base;	/* Physical Bridge Register Base */
 	phys_addr_t phys_pcie_reg_base;	/* Physical PCIe Controller Base */
 	phys_addr_t phys_ecam_base;	/* Physical Configuration Base */
@@ -267,42 +269,42 @@ static irqreturn_t nwl_pcie_misc_handler(int irq, void *data)
 		return IRQ_NONE;
 
 	if (misc_stat & MSGF_MISC_SR_RXMSG_OVER)
-		dev_err(dev, "Received Message FIFO Overflow\n");
+		dev_err_ratelimited(dev, "Received Message FIFO Overflow\n");
 
 	if (misc_stat & MSGF_MISC_SR_SLAVE_ERR)
-		dev_err(dev, "Slave error\n");
+		dev_err_ratelimited(dev, "Slave error\n");
 
 	if (misc_stat & MSGF_MISC_SR_MASTER_ERR)
-		dev_err(dev, "Master error\n");
+		dev_err_ratelimited(dev, "Master error\n");
 
 	if (misc_stat & MSGF_MISC_SR_I_ADDR_ERR)
-		dev_err(dev, "In Misc Ingress address translation error\n");
+		dev_err_ratelimited(dev, "In Misc Ingress address translation error\n");
 
 	if (misc_stat & MSGF_MISC_SR_E_ADDR_ERR)
-		dev_err(dev, "In Misc Egress address translation error\n");
+		dev_err_ratelimited(dev, "In Misc Egress address translation error\n");
 
 	if (misc_stat & MSGF_MISC_SR_FATAL_AER)
-		dev_err(dev, "Fatal Error in AER Capability\n");
+		dev_err_ratelimited(dev, "Fatal Error in AER Capability\n");
 
 	if (misc_stat & MSGF_MISC_SR_NON_FATAL_AER)
-		dev_err(dev, "Non-Fatal Error in AER Capability\n");
+		dev_err_ratelimited(dev, "Non-Fatal Error in AER Capability\n");
 
 	if (misc_stat & MSGF_MISC_SR_CORR_AER)
-		dev_err(dev, "Correctable Error in AER Capability\n");
+		dev_err_ratelimited(dev, "Correctable Error in AER Capability\n");
 
 	if (misc_stat & MSGF_MISC_SR_UR_DETECT)
-		dev_err(dev, "Unsupported request Detected\n");
+		dev_err_ratelimited(dev, "Unsupported request Detected\n");
 
 	if (misc_stat & MSGF_MISC_SR_NON_FATAL_DEV)
-		dev_err(dev, "Non-Fatal Error Detected\n");
+		dev_err_ratelimited(dev, "Non-Fatal Error Detected\n");
 
 	if (misc_stat & MSGF_MISC_SR_FATAL_DEV)
-		dev_err(dev, "Fatal Error Detected\n");
+		dev_err_ratelimited(dev, "Fatal Error Detected\n");
 
-	if (misc_stat & MSGF_MSIC_SR_LINK_AUTO_BWIDTH)
+	if (misc_stat & MSGF_MISC_SR_LINK_AUTO_BWIDTH)
 		dev_info(dev, "Link Autonomous Bandwidth Management Status bit set\n");
 
-	if (misc_stat & MSGF_MSIC_SR_LINK_BWIDTH)
+	if (misc_stat & MSGF_MISC_SR_LINK_BWIDTH)
 		dev_info(dev, "Link Bandwidth Management Status bit set\n");
 
 	/* Clear misc interrupt status */
@@ -371,7 +373,7 @@ static void nwl_mask_intx_irq(struct irq_data *data)
 	u32 mask;
 	u32 val;
 
-	mask = 1 << (data->hwirq - 1);
+	mask = 1 << data->hwirq;
 	raw_spin_lock_irqsave(&pcie->leg_mask_lock, flags);
 	val = nwl_bridge_readl(pcie, MSGF_LEG_MASK);
 	nwl_bridge_writel(pcie, (val & (~mask)), MSGF_LEG_MASK);
@@ -385,7 +387,7 @@ static void nwl_unmask_intx_irq(struct irq_data *data)
 	u32 mask;
 	u32 val;
 
-	mask = 1 << (data->hwirq - 1);
+	mask = 1 << data->hwirq;
 	raw_spin_lock_irqsave(&pcie->leg_mask_lock, flags);
 	val = nwl_bridge_readl(pcie, MSGF_LEG_MASK);
 	nwl_bridge_writel(pcie, (val | mask), MSGF_LEG_MASK);
@@ -425,8 +427,8 @@ static struct irq_chip nwl_msi_irq_chip = {
 };
 
 static struct msi_domain_info nwl_msi_domain_info = {
-	.flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		  MSI_FLAG_MULTI_PCI_MSI),
+	.flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		 MSI_FLAG_NO_AFFINITY | MSI_FLAG_MULTI_PCI_MSI,
 	.chip = &nwl_msi_irq_chip,
 };
 #endif
@@ -441,16 +443,9 @@ static void nwl_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 	msg->data = data->hwirq;
 }
 
-static int nwl_msi_set_affinity(struct irq_data *irq_data,
-				const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static struct irq_chip nwl_irq_chip = {
 	.name = "Xilinx MSI",
 	.irq_compose_msi_msg = nwl_compose_msi_msg,
-	.irq_set_affinity = nwl_msi_set_affinity,
 };
 
 static int nwl_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
@@ -521,6 +516,60 @@ static int nwl_pcie_init_msi_irq_domain(struct nwl_pcie *pcie)
 	return 0;
 }
 
+static void nwl_pcie_phy_power_off(struct nwl_pcie *pcie, int i)
+{
+	int err = phy_power_off(pcie->phy[i]);
+
+	if (err)
+		dev_err(pcie->dev, "could not power off phy %d (err=%d)\n", i,
+			err);
+}
+
+static void nwl_pcie_phy_exit(struct nwl_pcie *pcie, int i)
+{
+	int err = phy_exit(pcie->phy[i]);
+
+	if (err)
+		dev_err(pcie->dev, "could not exit phy %d (err=%d)\n", i, err);
+}
+
+static int nwl_pcie_phy_enable(struct nwl_pcie *pcie)
+{
+	int i, ret;
+
+	for (i = 0; i < ARRAY_SIZE(pcie->phy); i++) {
+		ret = phy_init(pcie->phy[i]);
+		if (ret)
+			goto err;
+
+		ret = phy_power_on(pcie->phy[i]);
+		if (ret) {
+			nwl_pcie_phy_exit(pcie, i);
+			goto err;
+		}
+	}
+
+	return 0;
+
+err:
+	while (i--) {
+		nwl_pcie_phy_power_off(pcie, i);
+		nwl_pcie_phy_exit(pcie, i);
+	}
+
+	return ret;
+}
+
+static void nwl_pcie_phy_disable(struct nwl_pcie *pcie)
+{
+	int i;
+
+	for (i = ARRAY_SIZE(pcie->phy); i--;) {
+		nwl_pcie_phy_power_off(pcie, i);
+		nwl_pcie_phy_exit(pcie, i);
+	}
+}
+
 static int nwl_pcie_init_irq_domain(struct nwl_pcie *pcie)
 {
 	struct device *dev = pcie->dev;
@@ -732,6 +781,7 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
 {
 	struct device *dev = pcie->dev;
 	struct resource *res;
+	int i;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "breg");
 	pcie->breg_base = devm_ioremap_resource(dev, res);
@@ -759,6 +809,18 @@ static int nwl_pcie_parse_dt(struct nwl_pcie *pcie,
 	irq_set_chained_handler_and_data(pcie->irq_intx,
 					 nwl_pcie_leg_handler, pcie);
 
+
+	for (i = 0; i < ARRAY_SIZE(pcie->phy); i++) {
+		pcie->phy[i] = devm_of_phy_get_by_index(dev, dev->of_node, i);
+		if (PTR_ERR(pcie->phy[i]) == -ENODEV) {
+			pcie->phy[i] = NULL;
+			break;
+		}
+
+		if (IS_ERR(pcie->phy[i]))
+			return PTR_ERR(pcie->phy[i]);
+	}
+
 	return 0;
 }
 
@@ -779,6 +841,7 @@ static int nwl_pcie_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	pcie = pci_host_bridge_priv(bridge);
+	platform_set_drvdata(pdev, pcie);
 
 	pcie->dev = dev;
 
@@ -798,16 +861,22 @@ static int nwl_pcie_probe(struct platform_device *pdev)
 		return err;
 	}
 
+	err = nwl_pcie_phy_enable(pcie);
+	if (err) {
+		dev_err(dev, "could not enable PHYs\n");
+		goto err_clk;
+	}
+
 	err = nwl_pcie_bridge_init(pcie);
 	if (err) {
 		dev_err(dev, "HW Initialization failed\n");
-		return err;
+		goto err_phy;
 	}
 
 	err = nwl_pcie_init_irq_domain(pcie);
 	if (err) {
 		dev_err(dev, "Failed creating IRQ Domain\n");
-		return err;
+		goto err_phy;
 	}
 
 	bridge->sysdata = pcie;
@@ -817,11 +886,27 @@ static int nwl_pcie_probe(struct platform_device *pdev)
 		err = nwl_pcie_enable_msi(pcie);
 		if (err < 0) {
 			dev_err(dev, "failed to enable MSI support: %d\n", err);
-			return err;
+			goto err_phy;
 		}
 	}
 
-	return pci_host_probe(bridge);
+	err = pci_host_probe(bridge);
+	if (!err)
+		return 0;
+
+err_phy:
+	nwl_pcie_phy_disable(pcie);
+err_clk:
+	clk_disable_unprepare(pcie->clk);
+	return err;
+}
+
+static void nwl_pcie_remove(struct platform_device *pdev)
+{
+	struct nwl_pcie *pcie = platform_get_drvdata(pdev);
+
+	nwl_pcie_phy_disable(pcie);
+	clk_disable_unprepare(pcie->clk);
 }
 
 static struct platform_driver nwl_pcie_driver = {
@@ -831,5 +916,6 @@ static struct platform_driver nwl_pcie_driver = {
 		.of_match_table = nwl_pcie_of_match,
 	},
 	.probe = nwl_pcie_probe,
+	.remove_new = nwl_pcie_remove,
 };
 builtin_platform_driver(nwl_pcie_driver);
diff --git a/drivers/pci/controller/pcie-xilinx.c b/drivers/pci/controller/pcie-xilinx.c
index cb6e9f7b0152..0b534f73a942 100644
--- a/drivers/pci/controller/pcie-xilinx.c
+++ b/drivers/pci/controller/pcie-xilinx.c
@@ -208,11 +208,6 @@ static struct irq_chip xilinx_msi_top_chip = {
 	.irq_ack	= xilinx_msi_top_irq_ack,
 };
 
-static int xilinx_msi_set_affinity(struct irq_data *d, const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static void xilinx_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 {
 	struct xilinx_pcie *pcie = irq_data_get_irq_chip_data(data);
@@ -225,7 +220,6 @@ static void xilinx_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 
 static struct irq_chip xilinx_msi_bottom_chip = {
 	.name			= "Xilinx MSI",
-	.irq_set_affinity 	= xilinx_msi_set_affinity,
 	.irq_compose_msi_msg	= xilinx_compose_msi_msg,
 };
 
@@ -271,7 +265,8 @@ static const struct irq_domain_ops xilinx_msi_domain_ops = {
 };
 
 static struct msi_domain_info xilinx_msi_info = {
-	.flags	= (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS),
+	.flags	= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		  MSI_FLAG_NO_AFFINITY,
 	.chip	= &xilinx_msi_top_chip,
 };
 
diff --git a/drivers/pci/controller/plda/pcie-plda-host.c b/drivers/pci/controller/plda/pcie-plda-host.c
index a18923d7cea6..8533dc618d45 100644
--- a/drivers/pci/controller/plda/pcie-plda-host.c
+++ b/drivers/pci/controller/plda/pcie-plda-host.c
@@ -76,17 +76,10 @@ static void plda_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
 		(int)data->hwirq, msg->address_hi, msg->address_lo);
 }
 
-static int plda_msi_set_affinity(struct irq_data *irq_data,
-				 const struct cpumask *mask, bool force)
-{
-	return -EINVAL;
-}
-
 static struct irq_chip plda_msi_bottom_irq_chip = {
 	.name = "PLDA MSI",
 	.irq_ack = plda_msi_bottom_irq_ack,
 	.irq_compose_msi_msg = plda_compose_msi_msg,
-	.irq_set_affinity = plda_msi_set_affinity,
 };
 
 static int plda_irq_msi_domain_alloc(struct irq_domain *domain,
@@ -146,8 +139,8 @@ static struct irq_chip plda_msi_irq_chip = {
 };
 
 static struct msi_domain_info plda_msi_domain_info = {
-	.flags = (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-		  MSI_FLAG_PCI_MSIX),
+	.flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+		 MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX,
 	.chip = &plda_msi_irq_chip,
 };
 
diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c
index a726de0af011..264a180403a0 100644
--- a/drivers/pci/controller/vmd.c
+++ b/drivers/pci/controller/vmd.c
@@ -204,22 +204,11 @@ static void vmd_irq_disable(struct irq_data *data)
 	raw_spin_unlock_irqrestore(&list_lock, flags);
 }
 
-/*
- * XXX: Stubbed until we develop acceptable way to not create conflicts with
- * other devices sharing the same vector.
- */
-static int vmd_irq_set_affinity(struct irq_data *data,
-				const struct cpumask *dest, bool force)
-{
-	return -EINVAL;
-}
-
 static struct irq_chip vmd_msi_controller = {
 	.name			= "VMD-MSI",
 	.irq_enable		= vmd_irq_enable,
 	.irq_disable		= vmd_irq_disable,
 	.irq_compose_msi_msg	= vmd_compose_msi_msg,
-	.irq_set_affinity	= vmd_irq_set_affinity,
 };
 
 static irq_hw_number_t vmd_get_hwirq(struct msi_domain_info *info,
@@ -326,7 +315,7 @@ static struct msi_domain_ops vmd_msi_domain_ops = {
 
 static struct msi_domain_info vmd_msi_domain_info = {
 	.flags		= MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
-			  MSI_FLAG_PCI_MSIX,
+			  MSI_FLAG_NO_AFFINITY | MSI_FLAG_PCI_MSIX,
 	.ops		= &vmd_msi_domain_ops,
 	.chip		= &vmd_msi_controller,
 };
@@ -1053,9 +1042,9 @@ static void vmd_remove(struct pci_dev *dev)
 
 static void vmd_shutdown(struct pci_dev *dev)
 {
-        struct vmd_dev *vmd = pci_get_drvdata(dev);
+	struct vmd_dev *vmd = pci_get_drvdata(dev);
 
-        vmd_remove_irq_domain(vmd);
+	vmd_remove_irq_domain(vmd);
 }
 
 #ifdef CONFIG_PM_SLEEP
diff --git a/drivers/pci/devres.c b/drivers/pci/devres.c
index c7affbbf73ab..b133967faef8 100644
--- a/drivers/pci/devres.c
+++ b/drivers/pci/devres.c
@@ -730,7 +730,7 @@ EXPORT_SYMBOL(pcim_iounmap);
  * Mapping and region will get automatically released on driver detach. If
  * desired, release manually only with pcim_iounmap_region().
  */
-static void __iomem *pcim_iomap_region(struct pci_dev *pdev, int bar,
+void __iomem *pcim_iomap_region(struct pci_dev *pdev, int bar,
 				       const char *name)
 {
 	int ret;
@@ -763,6 +763,7 @@ err_region:
 
 	return IOMEM_ERR_PTR(ret);
 }
+EXPORT_SYMBOL(pcim_iomap_region);
 
 /**
  * pcim_iounmap_region - Unmap and release a PCI BAR
@@ -785,7 +786,7 @@ static void pcim_iounmap_region(struct pci_dev *pdev, int bar)
 }
 
 /**
- * pcim_iomap_regions - Request and iomap PCI BARs
+ * pcim_iomap_regions - Request and iomap PCI BARs (DEPRECATED)
  * @pdev: PCI device to map IO resources for
  * @mask: Mask of BARs to request and iomap
  * @name: Name associated with the requests
@@ -793,6 +794,9 @@ static void pcim_iounmap_region(struct pci_dev *pdev, int bar)
  * Returns: 0 on success, negative error code on failure.
  *
  * Request and iomap regions specified by @mask.
+ *
+ * This function is DEPRECATED. Do not use it in new code.
+ * Use pcim_iomap_region() instead.
  */
 int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name)
 {
@@ -865,6 +869,7 @@ int pcim_request_region(struct pci_dev *pdev, int bar, const char *name)
 {
 	return _pcim_request_region(pdev, bar, name, 0);
 }
+EXPORT_SYMBOL(pcim_request_region);
 
 /**
  * pcim_request_region_exclusive - Request a PCI BAR exclusively
diff --git a/drivers/pci/endpoint/pci-epc-core.c b/drivers/pci/endpoint/pci-epc-core.c
index 84309dfe0c68..17f007109255 100644
--- a/drivers/pci/endpoint/pci-epc-core.c
+++ b/drivers/pci/endpoint/pci-epc-core.c
@@ -838,6 +838,10 @@ void pci_epc_destroy(struct pci_epc *epc)
 {
 	pci_ep_cfs_remove_epc_group(epc->group);
 	device_unregister(&epc->dev);
+
+#ifdef CONFIG_PCI_DOMAINS_GENERIC
+	pci_bus_release_domain_nr(&epc->dev, epc->domain_nr);
+#endif
 }
 EXPORT_SYMBOL_GPL(pci_epc_destroy);
 
@@ -900,6 +904,16 @@ __pci_epc_create(struct device *dev, const struct pci_epc_ops *ops,
 	epc->dev.release = pci_epc_release;
 	epc->ops = ops;
 
+#ifdef CONFIG_PCI_DOMAINS_GENERIC
+	epc->domain_nr = pci_bus_find_domain_nr(NULL, dev);
+#else
+	/*
+	 * TODO: If the architecture doesn't support generic PCI
+	 * domains, then a custom implementation has to be used.
+	 */
+	WARN_ONCE(1, "This architecture doesn't support generic PCI domains\n");
+#endif
+
 	ret = dev_set_name(&epc->dev, "%s", dev_name(dev));
 	if (ret)
 		goto put_dev;
diff --git a/drivers/pci/hotplug/TODO b/drivers/pci/hotplug/TODO
index 9d428b0ea524..92e6e20e8595 100644
--- a/drivers/pci/hotplug/TODO
+++ b/drivers/pci/hotplug/TODO
@@ -51,11 +51,6 @@ ibmphp:
 
 shpchp:
 
-* There is only a single implementation of struct hpc_ops.  Can the struct be
-  removed and its functions invoked directly?  This has already been done in
-  pciehp with commit 82a9e79ef132 ("PCI: pciehp: remove hpc_ops").  Clarify
-  if there was a specific reason not to apply the same change to shpchp.
-
 * The hardirq handler shpc_isr() queues events on a workqueue.  It can be
   simplified by converting it to threaded IRQ handling.  Use pciehp as a
   template.
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index c94b40e64baf..47a3ed16159a 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -328,7 +328,7 @@ get_slot_mapping(struct pci_bus *bus, u8 bus_num, u8 dev_num, u8 *slot)
 		} else {
 			/* Did not get a match on the target PCI device. Check
 			 * if the current IRQ table entry is a PCI-to-PCI
-			 * bridge device.  If so, and it's secondary bus
+			 * bridge device.  If so, and its secondary bus
 			 * matches the bus number for the target device, I need
 			 * to save the bridge's slot number.  If I can not find
 			 * an entry for the target device, I will have to
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index e9f1fb333a71..718bc6cf12cb 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -138,7 +138,7 @@ static int PCI_RefinedAccessConfig(struct pci_bus *bus, unsigned int devfn, u8 o
 
 	if (pci_bus_read_config_dword(bus, devfn, PCI_VENDOR_ID, &vendID) == -1)
 		return -1;
-	if (vendID == 0xffffffff)
+	if (PCI_POSSIBLE_ERROR(vendID))
 		return -1;
 	return pci_bus_read_config_dword(bus, devfn, offset, value);
 }
@@ -253,7 +253,7 @@ static int PCI_GetBusDevHelper(struct controller *ctrl, u8 *bus_num, u8 *dev_num
 			*dev_num = tdevice;
 			ctrl->pci_bus->number = tbus;
 			pci_bus_read_config_dword(ctrl->pci_bus, *dev_num, PCI_VENDOR_ID, &work);
-			if (!nobridge || (work == 0xffffffff))
+			if (!nobridge || PCI_POSSIBLE_ERROR(work))
 				return 0;
 
 			dbg("bus_num %d devfn %d\n", *bus_num, *dev_num);
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index 7333b305f2a5..055518ee354d 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -112,7 +112,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 
 static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
-	/* if the slot exits it always contains a function */
+	/* if the slot exists it always contains a function */
 	*value = 1;
 	return 0;
 }
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index 3a97f455336e..f0e2d2d54d71 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -72,7 +72,6 @@ struct slot {
 	u8 latch_save;
 	u8 pwr_save;
 	struct controller *ctrl;
-	const struct hpc_ops *hpc_ops;
 	struct hotplug_slot hotplug_slot;
 	struct list_head	slot_list;
 	struct delayed_work work;	/* work for button event */
@@ -94,7 +93,6 @@ struct controller {
 	int slot_num_inc;		/* 1 or -1 */
 	struct pci_dev *pci_dev;
 	struct list_head slot_list;
-	const struct hpc_ops *hpc_ops;
 	wait_queue_head_t queue;	/* sleep & wake process */
 	u8 slot_device_offset;
 	u32 pcix_misc2_reg;	/* for amd pogo errata */
@@ -300,24 +298,22 @@ static inline void amd_pogo_errata_restore_misc_reg(struct slot *p_slot)
 	pci_write_config_dword(p_slot->ctrl->pci_dev, PCIX_MISCII_OFFSET, pcix_misc2_temp);
 }
 
-struct hpc_ops {
-	int (*power_on_slot)(struct slot *slot);
-	int (*slot_enable)(struct slot *slot);
-	int (*slot_disable)(struct slot *slot);
-	int (*set_bus_speed_mode)(struct slot *slot, enum pci_bus_speed speed);
-	int (*get_power_status)(struct slot *slot, u8 *status);
-	int (*get_attention_status)(struct slot *slot, u8 *status);
-	int (*set_attention_status)(struct slot *slot, u8 status);
-	int (*get_latch_status)(struct slot *slot, u8 *status);
-	int (*get_adapter_status)(struct slot *slot, u8 *status);
-	int (*get_adapter_speed)(struct slot *slot, enum pci_bus_speed *speed);
-	int (*get_prog_int)(struct slot *slot, u8 *prog_int);
-	int (*query_power_fault)(struct slot *slot);
-	void (*green_led_on)(struct slot *slot);
-	void (*green_led_off)(struct slot *slot);
-	void (*green_led_blink)(struct slot *slot);
-	void (*release_ctlr)(struct controller *ctrl);
-	int (*check_cmd_status)(struct controller *ctrl);
-};
+int shpchp_power_on_slot(struct slot *slot);
+int shpchp_slot_enable(struct slot *slot);
+int shpchp_slot_disable(struct slot *slot);
+int shpchp_set_bus_speed_mode(struct slot *slot, enum pci_bus_speed speed);
+int shpchp_get_power_status(struct slot *slot, u8 *status);
+int shpchp_get_attention_status(struct slot *slot, u8 *status);
+int shpchp_set_attention_status(struct slot *slot, u8 status);
+int shpchp_get_latch_status(struct slot *slot, u8 *status);
+int shpchp_get_adapter_status(struct slot *slot, u8 *status);
+int shpchp_get_adapter_speed(struct slot *slot, enum pci_bus_speed *speed);
+int shpchp_get_prog_int(struct slot *slot, u8 *prog_int);
+int shpchp_query_power_fault(struct slot *slot);
+void shpchp_green_led_on(struct slot *slot);
+void shpchp_green_led_off(struct slot *slot);
+void shpchp_green_led_blink(struct slot *slot);
+void shpchp_release_ctlr(struct controller *ctrl);
+int shpchp_check_cmd_status(struct controller *ctrl);
 
 #endif				/* _SHPCHP_H */
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index 56c7795ed890..a92e28b72908 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -81,7 +81,6 @@ static int init_slots(struct controller *ctrl)
 		slot->ctrl = ctrl;
 		slot->bus = ctrl->pci_dev->subordinate->number;
 		slot->device = ctrl->slot_device_offset + i;
-		slot->hpc_ops = ctrl->hpc_ops;
 		slot->number = ctrl->first_slot + (ctrl->slot_num_inc * i);
 
 		slot->wq = alloc_workqueue("shpchp-%d", 0, 0, slot->number);
@@ -150,7 +149,7 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
 		 __func__, slot_name(slot));
 
 	slot->attention_save = status;
-	slot->hpc_ops->set_attention_status(slot, status);
+	shpchp_set_attention_status(slot, status);
 
 	return 0;
 }
@@ -183,7 +182,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
 		 __func__, slot_name(slot));
 
-	retval = slot->hpc_ops->get_power_status(slot, value);
+	retval = shpchp_get_power_status(slot, value);
 	if (retval < 0)
 		*value = slot->pwr_save;
 
@@ -198,7 +197,7 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
 		 __func__, slot_name(slot));
 
-	retval = slot->hpc_ops->get_attention_status(slot, value);
+	retval = shpchp_get_attention_status(slot, value);
 	if (retval < 0)
 		*value = slot->attention_save;
 
@@ -213,7 +212,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
 		 __func__, slot_name(slot));
 
-	retval = slot->hpc_ops->get_latch_status(slot, value);
+	retval = shpchp_get_latch_status(slot, value);
 	if (retval < 0)
 		*value = slot->latch_save;
 
@@ -228,7 +227,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	ctrl_dbg(slot->ctrl, "%s: physical_slot = %s\n",
 		 __func__, slot_name(slot));
 
-	retval = slot->hpc_ops->get_adapter_status(slot, value);
+	retval = shpchp_get_adapter_status(slot, value);
 	if (retval < 0)
 		*value = slot->presence_save;
 
@@ -293,7 +292,7 @@ static int shpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 err_cleanup_slots:
 	cleanup_slots(ctrl);
 err_out_release_ctlr:
-	ctrl->hpc_ops->release_ctlr(ctrl);
+	shpchp_release_ctlr(ctrl);
 err_out_free_ctrl:
 	kfree(ctrl);
 err_out_none:
@@ -306,7 +305,7 @@ static void shpc_remove(struct pci_dev *dev)
 
 	dev->shpc_managed = 0;
 	shpchp_remove_ctrl_files(ctrl);
-	ctrl->hpc_ops->release_ctlr(ctrl);
+	shpchp_release_ctlr(ctrl);
 	kfree(ctrl);
 }
 
diff --git a/drivers/pci/hotplug/shpchp_ctrl.c b/drivers/pci/hotplug/shpchp_ctrl.c
index 6a6705e0cf17..e6c6f23bae27 100644
--- a/drivers/pci/hotplug/shpchp_ctrl.c
+++ b/drivers/pci/hotplug/shpchp_ctrl.c
@@ -51,7 +51,7 @@ u8 shpchp_handle_attention_button(u8 hp_slot, struct controller *ctrl)
 	ctrl_dbg(ctrl, "Attention button interrupt received\n");
 
 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
-	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
+	shpchp_get_adapter_status(p_slot, &p_slot->presence_save);
 
 	/*
 	 *  Button pressed - See if need to TAKE ACTION!!!
@@ -75,8 +75,8 @@ u8 shpchp_handle_switch_change(u8 hp_slot, struct controller *ctrl)
 	ctrl_dbg(ctrl, "Switch interrupt received\n");
 
 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
-	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
-	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
+	shpchp_get_adapter_status(p_slot, &p_slot->presence_save);
+	shpchp_get_latch_status(p_slot, &getstatus);
 	ctrl_dbg(ctrl, "Card present %x Power status %x\n",
 		 p_slot->presence_save, p_slot->pwr_save);
 
@@ -116,7 +116,7 @@ u8 shpchp_handle_presence_change(u8 hp_slot, struct controller *ctrl)
 	/*
 	 * Save the presence state
 	 */
-	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
+	shpchp_get_adapter_status(p_slot, &p_slot->presence_save);
 	if (p_slot->presence_save) {
 		/*
 		 * Card Present
@@ -148,7 +148,7 @@ u8 shpchp_handle_power_fault(u8 hp_slot, struct controller *ctrl)
 
 	p_slot = shpchp_find_slot(ctrl, hp_slot + ctrl->slot_device_offset);
 
-	if (!(p_slot->hpc_ops->query_power_fault(p_slot))) {
+	if (!(shpchp_query_power_fault(p_slot))) {
 		/*
 		 * Power fault Cleared
 		 */
@@ -181,7 +181,7 @@ static int change_bus_speed(struct controller *ctrl, struct slot *p_slot,
 	int rc = 0;
 
 	ctrl_dbg(ctrl, "Change speed to %d\n", speed);
-	rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, speed);
+	rc = shpchp_set_bus_speed_mode(p_slot, speed);
 	if (rc) {
 		ctrl_err(ctrl, "%s: Issue of set bus speed mode command failed\n",
 			 __func__);
@@ -241,14 +241,14 @@ static int board_added(struct slot *p_slot)
 		 __func__, p_slot->device, ctrl->slot_device_offset, hp_slot);
 
 	/* Power on slot without connecting to bus */
-	rc = p_slot->hpc_ops->power_on_slot(p_slot);
+	rc = shpchp_power_on_slot(p_slot);
 	if (rc) {
 		ctrl_err(ctrl, "Failed to power on slot\n");
 		return -1;
 	}
 
 	if ((ctrl->pci_dev->vendor == 0x8086) && (ctrl->pci_dev->device == 0x0332)) {
-		rc = p_slot->hpc_ops->set_bus_speed_mode(p_slot, PCI_SPEED_33MHz);
+		rc = shpchp_set_bus_speed_mode(p_slot, PCI_SPEED_33MHz);
 		if (rc) {
 			ctrl_err(ctrl, "%s: Issue of set bus speed mode command failed\n",
 				 __func__);
@@ -256,14 +256,14 @@ static int board_added(struct slot *p_slot)
 		}
 
 		/* turn on board, blink green LED, turn off Amber LED */
-		rc = p_slot->hpc_ops->slot_enable(p_slot);
+		rc = shpchp_slot_enable(p_slot);
 		if (rc) {
 			ctrl_err(ctrl, "Issue of Slot Enable command failed\n");
 			return rc;
 		}
 	}
 
-	rc = p_slot->hpc_ops->get_adapter_speed(p_slot, &asp);
+	rc = shpchp_get_adapter_speed(p_slot, &asp);
 	if (rc) {
 		ctrl_err(ctrl, "Can't get adapter speed or bus mode mismatch\n");
 		return WRONG_BUS_FREQUENCY;
@@ -285,7 +285,7 @@ static int board_added(struct slot *p_slot)
 		return rc;
 
 	/* turn on board, blink green LED, turn off Amber LED */
-	rc = p_slot->hpc_ops->slot_enable(p_slot);
+	rc = shpchp_slot_enable(p_slot);
 	if (rc) {
 		ctrl_err(ctrl, "Issue of Slot Enable command failed\n");
 		return rc;
@@ -313,13 +313,13 @@ static int board_added(struct slot *p_slot)
 	p_slot->is_a_board = 0x01;
 	p_slot->pwr_save = 1;
 
-	p_slot->hpc_ops->green_led_on(p_slot);
+	shpchp_green_led_on(p_slot);
 
 	return 0;
 
 err_exit:
 	/* turn off slot, turn on Amber LED, turn off Green LED */
-	rc = p_slot->hpc_ops->slot_disable(p_slot);
+	rc = shpchp_slot_disable(p_slot);
 	if (rc) {
 		ctrl_err(ctrl, "%s: Issue of Slot Disable command failed\n",
 			 __func__);
@@ -352,14 +352,14 @@ static int remove_board(struct slot *p_slot)
 		p_slot->status = 0x01;
 
 	/* turn off slot, turn on Amber LED, turn off Green LED */
-	rc = p_slot->hpc_ops->slot_disable(p_slot);
+	rc = shpchp_slot_disable(p_slot);
 	if (rc) {
 		ctrl_err(ctrl, "%s: Issue of Slot Disable command failed\n",
 			 __func__);
 		return rc;
 	}
 
-	rc = p_slot->hpc_ops->set_attention_status(p_slot, 0);
+	rc = shpchp_set_attention_status(p_slot, 0);
 	if (rc) {
 		ctrl_err(ctrl, "Issue of Set Attention command failed\n");
 		return rc;
@@ -401,7 +401,7 @@ static void shpchp_pushbutton_thread(struct work_struct *work)
 	case POWERON_STATE:
 		mutex_unlock(&p_slot->lock);
 		if (shpchp_enable_slot(p_slot))
-			p_slot->hpc_ops->green_led_off(p_slot);
+			shpchp_green_led_off(p_slot);
 		mutex_lock(&p_slot->lock);
 		p_slot->state = STATIC_STATE;
 		break;
@@ -446,10 +446,10 @@ void shpchp_queue_pushbutton_work(struct work_struct *work)
 
 static void update_slot_info(struct slot *slot)
 {
-	slot->hpc_ops->get_power_status(slot, &slot->pwr_save);
-	slot->hpc_ops->get_attention_status(slot, &slot->attention_save);
-	slot->hpc_ops->get_latch_status(slot, &slot->latch_save);
-	slot->hpc_ops->get_adapter_status(slot, &slot->presence_save);
+	shpchp_get_power_status(slot, &slot->pwr_save);
+	shpchp_get_attention_status(slot, &slot->attention_save);
+	shpchp_get_latch_status(slot, &slot->latch_save);
+	shpchp_get_adapter_status(slot, &slot->presence_save);
 }
 
 /*
@@ -462,7 +462,7 @@ static void handle_button_press_event(struct slot *p_slot)
 
 	switch (p_slot->state) {
 	case STATIC_STATE:
-		p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
+		shpchp_get_power_status(p_slot, &getstatus);
 		if (getstatus) {
 			p_slot->state = BLINKINGOFF_STATE;
 			ctrl_info(ctrl, "PCI slot #%s - powering off due to button press\n",
@@ -473,8 +473,8 @@ static void handle_button_press_event(struct slot *p_slot)
 				  slot_name(p_slot));
 		}
 		/* blink green LED and turn off amber */
-		p_slot->hpc_ops->green_led_blink(p_slot);
-		p_slot->hpc_ops->set_attention_status(p_slot, 0);
+		shpchp_green_led_blink(p_slot);
+		shpchp_set_attention_status(p_slot, 0);
 
 		queue_delayed_work(p_slot->wq, &p_slot->work, 5*HZ);
 		break;
@@ -489,10 +489,10 @@ static void handle_button_press_event(struct slot *p_slot)
 			  slot_name(p_slot));
 		cancel_delayed_work(&p_slot->work);
 		if (p_slot->state == BLINKINGOFF_STATE)
-			p_slot->hpc_ops->green_led_on(p_slot);
+			shpchp_green_led_on(p_slot);
 		else
-			p_slot->hpc_ops->green_led_off(p_slot);
-		p_slot->hpc_ops->set_attention_status(p_slot, 0);
+			shpchp_green_led_off(p_slot);
+		shpchp_set_attention_status(p_slot, 0);
 		ctrl_info(ctrl, "PCI slot #%s - action canceled due to button press\n",
 			  slot_name(p_slot));
 		p_slot->state = STATIC_STATE;
@@ -526,8 +526,8 @@ static void interrupt_event_handler(struct work_struct *work)
 		break;
 	case INT_POWER_FAULT:
 		ctrl_dbg(p_slot->ctrl, "%s: Power fault\n", __func__);
-		p_slot->hpc_ops->set_attention_status(p_slot, 1);
-		p_slot->hpc_ops->green_led_off(p_slot);
+		shpchp_set_attention_status(p_slot, 1);
+		shpchp_green_led_off(p_slot);
 		break;
 	default:
 		update_slot_info(p_slot);
@@ -547,17 +547,17 @@ static int shpchp_enable_slot (struct slot *p_slot)
 
 	/* Check to see if (latch closed, card present, power off) */
 	mutex_lock(&p_slot->ctrl->crit_sect);
-	rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
+	rc = shpchp_get_adapter_status(p_slot, &getstatus);
 	if (rc || !getstatus) {
 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));
 		goto out;
 	}
-	rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
+	rc = shpchp_get_latch_status(p_slot, &getstatus);
 	if (rc || getstatus) {
 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));
 		goto out;
 	}
-	rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
+	rc = shpchp_get_power_status(p_slot, &getstatus);
 	if (rc || getstatus) {
 		ctrl_info(ctrl, "Already enabled on slot(%s)\n",
 			  slot_name(p_slot));
@@ -567,10 +567,10 @@ static int shpchp_enable_slot (struct slot *p_slot)
 	p_slot->is_a_board = 1;
 
 	/* We have to save the presence info for these slots */
-	p_slot->hpc_ops->get_adapter_status(p_slot, &(p_slot->presence_save));
-	p_slot->hpc_ops->get_power_status(p_slot, &(p_slot->pwr_save));
+	shpchp_get_adapter_status(p_slot, &p_slot->presence_save);
+	shpchp_get_power_status(p_slot, &p_slot->pwr_save);
 	ctrl_dbg(ctrl, "%s: p_slot->pwr_save %x\n", __func__, p_slot->pwr_save);
-	p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
+	shpchp_get_latch_status(p_slot, &getstatus);
 
 	if ((p_slot->ctrl->pci_dev->vendor == PCI_VENDOR_ID_AMD &&
 	     p_slot->ctrl->pci_dev->device == PCI_DEVICE_ID_AMD_POGO_7458)
@@ -584,9 +584,8 @@ static int shpchp_enable_slot (struct slot *p_slot)
 		retval = board_added(p_slot);
 
 	if (retval) {
-		p_slot->hpc_ops->get_adapter_status(p_slot,
-				&(p_slot->presence_save));
-		p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
+		shpchp_get_adapter_status(p_slot, &p_slot->presence_save);
+		shpchp_get_latch_status(p_slot, &getstatus);
 	}
 
 	update_slot_info(p_slot);
@@ -608,17 +607,17 @@ static int shpchp_disable_slot (struct slot *p_slot)
 	/* Check to see if (latch closed, card present, power on) */
 	mutex_lock(&p_slot->ctrl->crit_sect);
 
-	rc = p_slot->hpc_ops->get_adapter_status(p_slot, &getstatus);
+	rc = shpchp_get_adapter_status(p_slot, &getstatus);
 	if (rc || !getstatus) {
 		ctrl_info(ctrl, "No adapter on slot(%s)\n", slot_name(p_slot));
 		goto out;
 	}
-	rc = p_slot->hpc_ops->get_latch_status(p_slot, &getstatus);
+	rc = shpchp_get_latch_status(p_slot, &getstatus);
 	if (rc || getstatus) {
 		ctrl_info(ctrl, "Latch open on slot(%s)\n", slot_name(p_slot));
 		goto out;
 	}
-	rc = p_slot->hpc_ops->get_power_status(p_slot, &getstatus);
+	rc = shpchp_get_power_status(p_slot, &getstatus);
 	if (rc || !getstatus) {
 		ctrl_info(ctrl, "Already disabled on slot(%s)\n",
 			  slot_name(p_slot));
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 48e4daefc44a..012b9e3fe5b0 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -167,7 +167,6 @@
 
 static irqreturn_t shpc_isr(int irq, void *dev_id);
 static void start_int_poll_timer(struct controller *ctrl, int sec);
-static int hpc_check_cmd_status(struct controller *ctrl);
 
 static inline u8 shpc_readb(struct controller *ctrl, int reg)
 {
@@ -317,7 +316,7 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
 	if (retval)
 		goto out;
 
-	cmd_status = hpc_check_cmd_status(slot->ctrl);
+	cmd_status = shpchp_check_cmd_status(slot->ctrl);
 	if (cmd_status) {
 		ctrl_err(ctrl, "Failed to issued command 0x%x (error code = %d)\n",
 			 cmd, cmd_status);
@@ -328,7 +327,7 @@ static int shpc_write_cmd(struct slot *slot, u8 t_slot, u8 cmd)
 	return retval;
 }
 
-static int hpc_check_cmd_status(struct controller *ctrl)
+int shpchp_check_cmd_status(struct controller *ctrl)
 {
 	int retval = 0;
 	u16 cmd_status = shpc_readw(ctrl, CMD_STATUS) & 0x000F;
@@ -357,7 +356,7 @@ static int hpc_check_cmd_status(struct controller *ctrl)
 }
 
 
-static int hpc_get_attention_status(struct slot *slot, u8 *status)
+int shpchp_get_attention_status(struct slot *slot, u8 *status)
 {
 	struct controller *ctrl = slot->ctrl;
 	u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
@@ -381,7 +380,7 @@ static int hpc_get_attention_status(struct slot *slot, u8 *status)
 	return 0;
 }
 
-static int hpc_get_power_status(struct slot *slot, u8 *status)
+int shpchp_get_power_status(struct slot *slot, u8 *status)
 {
 	struct controller *ctrl = slot->ctrl;
 	u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
@@ -406,7 +405,7 @@ static int hpc_get_power_status(struct slot *slot, u8 *status)
 }
 
 
-static int hpc_get_latch_status(struct slot *slot, u8 *status)
+int shpchp_get_latch_status(struct slot *slot, u8 *status)
 {
 	struct controller *ctrl = slot->ctrl;
 	u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
@@ -416,7 +415,7 @@ static int hpc_get_latch_status(struct slot *slot, u8 *status)
 	return 0;
 }
 
-static int hpc_get_adapter_status(struct slot *slot, u8 *status)
+int shpchp_get_adapter_status(struct slot *slot, u8 *status)
 {
 	struct controller *ctrl = slot->ctrl;
 	u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
@@ -427,7 +426,7 @@ static int hpc_get_adapter_status(struct slot *slot, u8 *status)
 	return 0;
 }
 
-static int hpc_get_prog_int(struct slot *slot, u8 *prog_int)
+int shpchp_get_prog_int(struct slot *slot, u8 *prog_int)
 {
 	struct controller *ctrl = slot->ctrl;
 
@@ -436,7 +435,7 @@ static int hpc_get_prog_int(struct slot *slot, u8 *prog_int)
 	return 0;
 }
 
-static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
+int shpchp_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
 {
 	int retval = 0;
 	struct controller *ctrl = slot->ctrl;
@@ -444,7 +443,7 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
 	u8 m66_cap  = !!(slot_reg & MHZ66_CAP);
 	u8 pi, pcix_cap;
 
-	retval = hpc_get_prog_int(slot, &pi);
+	retval = shpchp_get_prog_int(slot, &pi);
 	if (retval)
 		return retval;
 
@@ -489,7 +488,7 @@ static int hpc_get_adapter_speed(struct slot *slot, enum pci_bus_speed *value)
 	return retval;
 }
 
-static int hpc_query_power_fault(struct slot *slot)
+int shpchp_query_power_fault(struct slot *slot)
 {
 	struct controller *ctrl = slot->ctrl;
 	u32 slot_reg = shpc_readl(ctrl, SLOT_REG(slot->hp_slot));
@@ -498,7 +497,7 @@ static int hpc_query_power_fault(struct slot *slot)
 	return !(slot_reg & POWER_FAULT);
 }
 
-static int hpc_set_attention_status(struct slot *slot, u8 value)
+int shpchp_set_attention_status(struct slot *slot, u8 value)
 {
 	u8 slot_cmd = 0;
 
@@ -520,22 +519,22 @@ static int hpc_set_attention_status(struct slot *slot, u8 value)
 }
 
 
-static void hpc_set_green_led_on(struct slot *slot)
+void shpchp_green_led_on(struct slot *slot)
 {
 	shpc_write_cmd(slot, slot->hp_slot, SET_PWR_ON);
 }
 
-static void hpc_set_green_led_off(struct slot *slot)
+void shpchp_green_led_off(struct slot *slot)
 {
 	shpc_write_cmd(slot, slot->hp_slot, SET_PWR_OFF);
 }
 
-static void hpc_set_green_led_blink(struct slot *slot)
+void shpchp_green_led_blink(struct slot *slot)
 {
 	shpc_write_cmd(slot, slot->hp_slot, SET_PWR_BLINK);
 }
 
-static void hpc_release_ctlr(struct controller *ctrl)
+void shpchp_release_ctlr(struct controller *ctrl)
 {
 	int i;
 	u32 slot_reg, serr_int;
@@ -575,7 +574,7 @@ static void hpc_release_ctlr(struct controller *ctrl)
 	release_mem_region(ctrl->mmio_base, ctrl->mmio_size);
 }
 
-static int hpc_power_on_slot(struct slot *slot)
+int shpchp_power_on_slot(struct slot *slot)
 {
 	int retval;
 
@@ -586,7 +585,7 @@ static int hpc_power_on_slot(struct slot *slot)
 	return retval;
 }
 
-static int hpc_slot_enable(struct slot *slot)
+int shpchp_slot_enable(struct slot *slot)
 {
 	int retval;
 
@@ -599,7 +598,7 @@ static int hpc_slot_enable(struct slot *slot)
 	return retval;
 }
 
-static int hpc_slot_disable(struct slot *slot)
+int shpchp_slot_disable(struct slot *slot)
 {
 	int retval;
 
@@ -681,7 +680,7 @@ static int shpc_get_cur_bus_speed(struct controller *ctrl)
 }
 
 
-static int hpc_set_bus_speed_mode(struct slot *slot, enum pci_bus_speed value)
+int shpchp_set_bus_speed_mode(struct slot *slot, enum pci_bus_speed value)
 {
 	int retval;
 	struct controller *ctrl = slot->ctrl;
@@ -871,28 +870,6 @@ static int shpc_get_max_bus_speed(struct controller *ctrl)
 	return retval;
 }
 
-static const struct hpc_ops shpchp_hpc_ops = {
-	.power_on_slot			= hpc_power_on_slot,
-	.slot_enable			= hpc_slot_enable,
-	.slot_disable			= hpc_slot_disable,
-	.set_bus_speed_mode		= hpc_set_bus_speed_mode,
-	.set_attention_status	= hpc_set_attention_status,
-	.get_power_status		= hpc_get_power_status,
-	.get_attention_status	= hpc_get_attention_status,
-	.get_latch_status		= hpc_get_latch_status,
-	.get_adapter_status		= hpc_get_adapter_status,
-
-	.get_adapter_speed		= hpc_get_adapter_speed,
-	.get_prog_int			= hpc_get_prog_int,
-
-	.query_power_fault		= hpc_query_power_fault,
-	.green_led_on			= hpc_set_green_led_on,
-	.green_led_off			= hpc_set_green_led_off,
-	.green_led_blink		= hpc_set_green_led_blink,
-
-	.release_ctlr			= hpc_release_ctlr,
-};
-
 int shpc_init(struct controller *ctrl, struct pci_dev *pdev)
 {
 	int rc = -1, num_slots = 0;
@@ -978,8 +955,6 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev)
 	/* Setup wait queue */
 	init_waitqueue_head(&ctrl->queue);
 
-	ctrl->hpc_ops = &shpchp_hpc_ops;
-
 	/* Return PCI Controller Info */
 	slot_config = shpc_readl(ctrl, SLOT_CONFIG);
 	ctrl->slot_device_offset = (slot_config & FIRST_DEV_NUM) >> 8;
diff --git a/drivers/pci/iomap.c b/drivers/pci/iomap.c
index a715a4803c95..9fb7cacc15cd 100644
--- a/drivers/pci/iomap.c
+++ b/drivers/pci/iomap.c
@@ -156,7 +156,7 @@ EXPORT_SYMBOL_GPL(pci_iomap_wc);
  * the different IOMAP ranges.
  *
  * But if the architecture does not use the generic iomap code, and if
- * it has _not_ defined it's own private pci_iounmap function, we define
+ * it has _not_ defined its own private pci_iounmap function, we define
  * it here.
  *
  * NOTE! This default implementation assumes that if the architecture
diff --git a/drivers/pci/npem.c b/drivers/pci/npem.c
new file mode 100644
index 000000000000..97507e0df769
--- /dev/null
+++ b/drivers/pci/npem.c
@@ -0,0 +1,595 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * PCIe Enclosure management driver created for LED interfaces based on
+ * indications. It says *what indications* blink but does not specify *how*
+ * they blink - it is hardware defined.
+ *
+ * The driver name refers to Native PCIe Enclosure Management. It is
+ * first indication oriented standard with specification.
+ *
+ * Native PCIe Enclosure Management (NPEM)
+ *	PCIe Base Specification r6.1 sec 6.28, 7.9.19
+ *
+ * _DSM Definitions for PCIe SSD Status LED
+ *	 PCI Firmware Specification, r3.3 sec 4.7
+ *
+ * Two backends are supported to manipulate indications: Direct NPEM register
+ * access (npem_ops) and indirect access through the ACPI _DSM (dsm_ops).
+ * _DSM is used if supported, else NPEM.
+ *
+ * Copyright (c) 2021-2022 Dell Inc.
+ * Copyright (c) 2023-2024 Intel Corporation
+ *	Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/bitops.h>
+#include <linux/errno.h>
+#include <linux/iopoll.h>
+#include <linux/leds.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/pci_regs.h>
+#include <linux/types.h>
+#include <linux/uleds.h>
+
+#include "pci.h"
+
+struct indication {
+	u32 bit;
+	const char *name;
+};
+
+static const struct indication npem_indications[] = {
+	{PCI_NPEM_IND_OK,	"enclosure:ok"},
+	{PCI_NPEM_IND_LOCATE,	"enclosure:locate"},
+	{PCI_NPEM_IND_FAIL,	"enclosure:fail"},
+	{PCI_NPEM_IND_REBUILD,	"enclosure:rebuild"},
+	{PCI_NPEM_IND_PFA,	"enclosure:pfa"},
+	{PCI_NPEM_IND_HOTSPARE,	"enclosure:hotspare"},
+	{PCI_NPEM_IND_ICA,	"enclosure:ica"},
+	{PCI_NPEM_IND_IFA,	"enclosure:ifa"},
+	{PCI_NPEM_IND_IDT,	"enclosure:idt"},
+	{PCI_NPEM_IND_DISABLED,	"enclosure:disabled"},
+	{PCI_NPEM_IND_SPEC_0,	"enclosure:specific_0"},
+	{PCI_NPEM_IND_SPEC_1,	"enclosure:specific_1"},
+	{PCI_NPEM_IND_SPEC_2,	"enclosure:specific_2"},
+	{PCI_NPEM_IND_SPEC_3,	"enclosure:specific_3"},
+	{PCI_NPEM_IND_SPEC_4,	"enclosure:specific_4"},
+	{PCI_NPEM_IND_SPEC_5,	"enclosure:specific_5"},
+	{PCI_NPEM_IND_SPEC_6,	"enclosure:specific_6"},
+	{PCI_NPEM_IND_SPEC_7,	"enclosure:specific_7"},
+	{0,			NULL}
+};
+
+/* _DSM PCIe SSD LED States correspond to NPEM register values */
+static const struct indication dsm_indications[] = {
+	{PCI_NPEM_IND_OK,	"enclosure:ok"},
+	{PCI_NPEM_IND_LOCATE,	"enclosure:locate"},
+	{PCI_NPEM_IND_FAIL,	"enclosure:fail"},
+	{PCI_NPEM_IND_REBUILD,	"enclosure:rebuild"},
+	{PCI_NPEM_IND_PFA,	"enclosure:pfa"},
+	{PCI_NPEM_IND_HOTSPARE,	"enclosure:hotspare"},
+	{PCI_NPEM_IND_ICA,	"enclosure:ica"},
+	{PCI_NPEM_IND_IFA,	"enclosure:ifa"},
+	{PCI_NPEM_IND_IDT,	"enclosure:idt"},
+	{PCI_NPEM_IND_DISABLED,	"enclosure:disabled"},
+	{0,			NULL}
+};
+
+#define for_each_indication(ind, inds) \
+	for (ind = inds; ind->bit; ind++)
+
+/*
+ * The driver has internal list of supported indications. Ideally, the driver
+ * should not touch bits that are not defined and for which LED devices are
+ * not exposed but in reality, it needs to turn them off.
+ *
+ * Otherwise, there will be no possibility to turn off indications turned on by
+ * other utilities or turned on by default and it leads to bad user experience.
+ *
+ * Additionally, it excludes NPEM commands like RESET or ENABLE.
+ */
+static u32 reg_to_indications(u32 caps, const struct indication *inds)
+{
+	const struct indication *ind;
+	u32 supported_indications = 0;
+
+	for_each_indication(ind, inds)
+		supported_indications |= ind->bit;
+
+	return caps & supported_indications;
+}
+
+/**
+ * struct npem_led - LED details
+ * @indication: indication details
+ * @npem: NPEM device
+ * @name: LED name
+ * @led: LED device
+ */
+struct npem_led {
+	const struct indication *indication;
+	struct npem *npem;
+	char name[LED_MAX_NAME_SIZE];
+	struct led_classdev led;
+};
+
+/**
+ * struct npem_ops - backend specific callbacks
+ * @get_active_indications: get active indications
+ *	npem: NPEM device
+ *	inds: response buffer
+ * @set_active_indications: set new indications
+ *	npem: npem device
+ *	inds: bit mask to set
+ * @inds: supported indications array, set of indications is backend specific
+ * @name: backend name
+ */
+struct npem_ops {
+	int (*get_active_indications)(struct npem *npem, u32 *inds);
+	int (*set_active_indications)(struct npem *npem, u32 inds);
+	const struct indication *inds;
+	const char *name;
+};
+
+/**
+ * struct npem - NPEM device properties
+ * @dev: PCI device this driver is attached to
+ * @ops: backend specific callbacks
+ * @lock: serializes concurrent access to NPEM device by multiple LED devices
+ * @pos: cached offset of NPEM Capability Register in Configuration Space;
+ *	only used if NPEM registers are accessed directly and not through _DSM
+ * @supported_indications: cached bit mask of supported indications;
+ *	non-indication and reserved bits in the NPEM Capability Register are
+ *	cleared in this bit mask
+ * @active_indications: cached bit mask of active indications;
+ *	non-indication and reserved bits in the NPEM Control Register are
+ *	cleared in this bit mask
+ * @active_inds_initialized: whether @active_indications has been initialized;
+ *	On Dell platforms, it is required that IPMI drivers are loaded before
+ *	the GET_STATE_DSM method is invoked: They use an IPMI OpRegion to
+ *	get/set the active LEDs. By initializing @active_indications lazily
+ *	(on first access to an LED), IPMI drivers are given a chance to load.
+ *	If they are not loaded in time, users will see various errors on LED
+ *	access in dmesg. Once they are loaded, the errors go away and LED
+ *	access becomes possible.
+ * @led_cnt: size of @leds array
+ * @leds: array containing LED class devices of all supported LEDs
+ */
+struct npem {
+	struct pci_dev *dev;
+	const struct npem_ops *ops;
+	struct mutex lock;
+	u16 pos;
+	u32 supported_indications;
+	u32 active_indications;
+	unsigned int active_inds_initialized:1;
+	int led_cnt;
+	struct npem_led leds[];
+};
+
+static int npem_read_reg(struct npem *npem, u16 reg, u32 *val)
+{
+	int ret = pci_read_config_dword(npem->dev, npem->pos + reg, val);
+
+	return pcibios_err_to_errno(ret);
+}
+
+static int npem_write_ctrl(struct npem *npem, u32 reg)
+{
+	int pos = npem->pos + PCI_NPEM_CTRL;
+	int ret = pci_write_config_dword(npem->dev, pos, reg);
+
+	return pcibios_err_to_errno(ret);
+}
+
+static int npem_get_active_indications(struct npem *npem, u32 *inds)
+{
+	u32 ctrl;
+	int ret;
+
+	ret = npem_read_reg(npem, PCI_NPEM_CTRL, &ctrl);
+	if (ret)
+		return ret;
+
+	/* If PCI_NPEM_CTRL_ENABLE is not set then no indication should blink */
+	if (!(ctrl & PCI_NPEM_CTRL_ENABLE)) {
+		*inds = 0;
+		return 0;
+	}
+
+	*inds = ctrl & npem->supported_indications;
+
+	return 0;
+}
+
+static int npem_set_active_indications(struct npem *npem, u32 inds)
+{
+	int ctrl, ret, ret_val;
+	u32 cc_status;
+
+	lockdep_assert_held(&npem->lock);
+
+	/* This bit is always required */
+	ctrl = inds | PCI_NPEM_CTRL_ENABLE;
+
+	ret = npem_write_ctrl(npem, ctrl);
+	if (ret)
+		return ret;
+
+	/*
+	 * For the case where a NPEM command has not completed immediately,
+	 * it is recommended that software not continuously "spin" on polling
+	 * the status register, but rather poll under interrupt at a reduced
+	 * rate; for example at 10 ms intervals.
+	 *
+	 * PCIe r6.1 sec 6.28 "Implementation Note: Software Polling of NPEM
+	 * Command Completed"
+	 */
+	ret = read_poll_timeout(npem_read_reg, ret_val,
+				ret_val || (cc_status & PCI_NPEM_STATUS_CC),
+				10 * USEC_PER_MSEC, USEC_PER_SEC, false, npem,
+				PCI_NPEM_STATUS, &cc_status);
+	if (ret)
+		return ret;
+	if (ret_val)
+		return ret_val;
+
+	/*
+	 * All writes to control register, including writes that do not change
+	 * the register value, are NPEM commands and should eventually result
+	 * in a command completion indication in the NPEM Status Register.
+	 *
+	 * PCIe Base Specification r6.1 sec 7.9.19.3
+	 *
+	 * Register may not be updated, or other conflicting bits may be
+	 * cleared. Spec is not strict here. Read NPEM Control register after
+	 * write to keep cache in-sync.
+	 */
+	return npem_get_active_indications(npem, &npem->active_indications);
+}
+
+static const struct npem_ops npem_ops = {
+	.get_active_indications = npem_get_active_indications,
+	.set_active_indications = npem_set_active_indications,
+	.name = "Native PCIe Enclosure Management",
+	.inds = npem_indications,
+};
+
+#define DSM_GUID GUID_INIT(0x5d524d9d, 0xfff9, 0x4d4b, 0x8c, 0xb7, 0x74, 0x7e,\
+			   0xd5, 0x1e, 0x19, 0x4d)
+#define GET_SUPPORTED_STATES_DSM	1
+#define GET_STATE_DSM			2
+#define SET_STATE_DSM			3
+
+static const guid_t dsm_guid = DSM_GUID;
+
+static bool npem_has_dsm(struct pci_dev *pdev)
+{
+	acpi_handle handle;
+
+	handle = ACPI_HANDLE(&pdev->dev);
+	if (!handle)
+		return false;
+
+	return acpi_check_dsm(handle, &dsm_guid, 0x1,
+			      BIT(GET_SUPPORTED_STATES_DSM) |
+			      BIT(GET_STATE_DSM) | BIT(SET_STATE_DSM));
+}
+
+struct dsm_output {
+	u16 status;
+	u8 function_specific_err;
+	u8 vendor_specific_err;
+	u32 state;
+};
+
+/**
+ * dsm_evaluate() - send DSM PCIe SSD Status LED command
+ * @pdev: PCI device
+ * @dsm_func: DSM LED Function
+ * @output: buffer to copy DSM Response
+ * @value_to_set: value for SET_STATE_DSM function
+ *
+ * To not bother caller with ACPI context, the returned _DSM Output Buffer is
+ * copied.
+ */
+static int dsm_evaluate(struct pci_dev *pdev, u64 dsm_func,
+			struct dsm_output *output, u32 value_to_set)
+{
+	acpi_handle handle = ACPI_HANDLE(&pdev->dev);
+	union acpi_object *out_obj, arg3[2];
+	union acpi_object *arg3_p = NULL;
+
+	if (dsm_func == SET_STATE_DSM) {
+		arg3[0].type = ACPI_TYPE_PACKAGE;
+		arg3[0].package.count = 1;
+		arg3[0].package.elements = &arg3[1];
+
+		arg3[1].type = ACPI_TYPE_BUFFER;
+		arg3[1].buffer.length = 4;
+		arg3[1].buffer.pointer = (u8 *)&value_to_set;
+
+		arg3_p = arg3;
+	}
+
+	out_obj = acpi_evaluate_dsm_typed(handle, &dsm_guid, 0x1, dsm_func,
+					  arg3_p, ACPI_TYPE_BUFFER);
+	if (!out_obj)
+		return -EIO;
+
+	if (out_obj->buffer.length < sizeof(struct dsm_output)) {
+		ACPI_FREE(out_obj);
+		return -EIO;
+	}
+
+	memcpy(output, out_obj->buffer.pointer, sizeof(struct dsm_output));
+
+	ACPI_FREE(out_obj);
+	return 0;
+}
+
+static int dsm_get(struct pci_dev *pdev, u64 dsm_func, u32 *buf)
+{
+	struct dsm_output output;
+	int ret = dsm_evaluate(pdev, dsm_func, &output, 0);
+
+	if (ret)
+		return ret;
+
+	if (output.status != 0)
+		return -EIO;
+
+	*buf = output.state;
+	return 0;
+}
+
+static int dsm_get_active_indications(struct npem *npem, u32 *buf)
+{
+	int ret = dsm_get(npem->dev, GET_STATE_DSM, buf);
+
+	/* Filter out not supported indications in response */
+	*buf &= npem->supported_indications;
+	return ret;
+}
+
+static int dsm_set_active_indications(struct npem *npem, u32 value)
+{
+	struct dsm_output output;
+	int ret = dsm_evaluate(npem->dev, SET_STATE_DSM, &output, value);
+
+	if (ret)
+		return ret;
+
+	switch (output.status) {
+	case 4:
+		/*
+		 * Not all bits are set. If this bit is set, the platform
+		 * disregarded some or all of the request state changes. OSPM
+		 * should check the resulting PCIe SSD Status LED States to see
+		 * what, if anything, has changed.
+		 *
+		 * PCI Firmware Specification, r3.3 Table 4-19.
+		 */
+		if (output.function_specific_err != 1)
+			return -EIO;
+		fallthrough;
+	case 0:
+		break;
+	default:
+		return -EIO;
+	}
+
+	npem->active_indications = output.state;
+
+	return 0;
+}
+
+static const struct npem_ops dsm_ops = {
+	.get_active_indications = dsm_get_active_indications,
+	.set_active_indications = dsm_set_active_indications,
+	.name = "_DSM PCIe SSD Status LED Management",
+	.inds = dsm_indications,
+};
+
+static int npem_initialize_active_indications(struct npem *npem)
+{
+	int ret;
+
+	lockdep_assert_held(&npem->lock);
+
+	if (npem->active_inds_initialized)
+		return 0;
+
+	ret = npem->ops->get_active_indications(npem,
+						&npem->active_indications);
+	if (ret)
+		return ret;
+
+	npem->active_inds_initialized = true;
+	return 0;
+}
+
+/*
+ * The status of each indicator is cached on first brightness_ get/set time
+ * and updated at write time.  brightness_get() is only responsible for
+ * reflecting the last written/cached value.
+ */
+static enum led_brightness brightness_get(struct led_classdev *led)
+{
+	struct npem_led *nled = container_of(led, struct npem_led, led);
+	struct npem *npem = nled->npem;
+	int ret, val = 0;
+
+	ret = mutex_lock_interruptible(&npem->lock);
+	if (ret)
+		return ret;
+
+	ret = npem_initialize_active_indications(npem);
+	if (ret)
+		goto out;
+
+	if (npem->active_indications & nled->indication->bit)
+		val = 1;
+
+out:
+	mutex_unlock(&npem->lock);
+	return val;
+}
+
+static int brightness_set(struct led_classdev *led,
+			  enum led_brightness brightness)
+{
+	struct npem_led *nled = container_of(led, struct npem_led, led);
+	struct npem *npem = nled->npem;
+	u32 indications;
+	int ret;
+
+	ret = mutex_lock_interruptible(&npem->lock);
+	if (ret)
+		return ret;
+
+	ret = npem_initialize_active_indications(npem);
+	if (ret)
+		goto out;
+
+	if (brightness == 0)
+		indications = npem->active_indications & ~(nled->indication->bit);
+	else
+		indications = npem->active_indications | nled->indication->bit;
+
+	ret = npem->ops->set_active_indications(npem, indications);
+
+out:
+	mutex_unlock(&npem->lock);
+	return ret;
+}
+
+static void npem_free(struct npem *npem)
+{
+	struct npem_led *nled;
+	int cnt;
+
+	if (!npem)
+		return;
+
+	for (cnt = 0; cnt < npem->led_cnt; cnt++) {
+		nled = &npem->leds[cnt];
+
+		if (nled->name[0])
+			led_classdev_unregister(&nled->led);
+	}
+
+	mutex_destroy(&npem->lock);
+	kfree(npem);
+}
+
+static int pci_npem_set_led_classdev(struct npem *npem, struct npem_led *nled)
+{
+	struct led_classdev *led = &nled->led;
+	struct led_init_data init_data = {};
+	char *name = nled->name;
+	int ret;
+
+	init_data.devicename = pci_name(npem->dev);
+	init_data.default_label = nled->indication->name;
+
+	ret = led_compose_name(&npem->dev->dev, &init_data, name);
+	if (ret)
+		return ret;
+
+	led->name = name;
+	led->brightness_set_blocking = brightness_set;
+	led->brightness_get = brightness_get;
+	led->max_brightness = 1;
+	led->default_trigger = "none";
+	led->flags = 0;
+
+	ret = led_classdev_register(&npem->dev->dev, led);
+	if (ret)
+		/* Clear the name to indicate that it is not registered. */
+		name[0] = 0;
+	return ret;
+}
+
+static int pci_npem_init(struct pci_dev *dev, const struct npem_ops *ops,
+			 int pos, u32 caps)
+{
+	u32 supported = reg_to_indications(caps, ops->inds);
+	int supported_cnt = hweight32(supported);
+	const struct indication *indication;
+	struct npem_led *nled;
+	struct npem *npem;
+	int led_idx = 0;
+	int ret;
+
+	npem = kzalloc(struct_size(npem, leds, supported_cnt), GFP_KERNEL);
+	if (!npem)
+		return -ENOMEM;
+
+	npem->supported_indications = supported;
+	npem->led_cnt = supported_cnt;
+	npem->pos = pos;
+	npem->dev = dev;
+	npem->ops = ops;
+
+	mutex_init(&npem->lock);
+
+	for_each_indication(indication, npem_indications) {
+		if (!(npem->supported_indications & indication->bit))
+			continue;
+
+		nled = &npem->leds[led_idx++];
+		nled->indication = indication;
+		nled->npem = npem;
+
+		ret = pci_npem_set_led_classdev(npem, nled);
+		if (ret) {
+			npem_free(npem);
+			return ret;
+		}
+	}
+
+	dev->npem = npem;
+	return 0;
+}
+
+void pci_npem_remove(struct pci_dev *dev)
+{
+	npem_free(dev->npem);
+}
+
+void pci_npem_create(struct pci_dev *dev)
+{
+	const struct npem_ops *ops = &npem_ops;
+	int pos = 0, ret;
+	u32 cap;
+
+	if (npem_has_dsm(dev)) {
+		/*
+		 * OS should use the DSM for LED control if it is available
+		 * PCI Firmware Spec r3.3 sec 4.7.
+		 */
+		ret = dsm_get(dev, GET_SUPPORTED_STATES_DSM, &cap);
+		if (ret)
+			return;
+
+		ops = &dsm_ops;
+	} else {
+		pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_NPEM);
+		if (pos == 0)
+			return;
+
+		if (pci_read_config_dword(dev, pos + PCI_NPEM_CAP, &cap) != 0 ||
+		    (cap & PCI_NPEM_CAP_CAPABLE) == 0)
+			return;
+	}
+
+	pci_info(dev, "Configuring %s\n", ops->name);
+
+	ret = pci_npem_init(dev, ops, pos, cap);
+	if (ret)
+		pci_err(dev, "Failed to register %s, err: %d\n", ops->name,
+			ret);
+}
diff --git a/drivers/pci/pci-bridge-emul.c b/drivers/pci/pci-bridge-emul.c
index 9334b2dd4764..6658c1edd464 100644
--- a/drivers/pci/pci-bridge-emul.c
+++ b/drivers/pci/pci-bridge-emul.c
@@ -257,8 +257,8 @@ struct pci_bridge_reg_behavior pcie_cap_regs_behavior[PCI_CAP_PCIE_SIZEOF / 4] =
 		 */
 		.rw = (PCI_EXP_RTCTL_SECEE | PCI_EXP_RTCTL_SENFEE |
 		       PCI_EXP_RTCTL_SEFEE | PCI_EXP_RTCTL_PMEIE |
-		       PCI_EXP_RTCTL_CRSSVE),
-		.ro = PCI_EXP_RTCAP_CRSVIS << 16,
+		       PCI_EXP_RTCTL_RRS_SVE),
+		.ro = PCI_EXP_RTCAP_RRS_SV << 16,
 	},
 
 	[PCI_EXP_RTSTA / 4] = {
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index f412ef73a6e4..35270172c833 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1670,7 +1670,7 @@ static void pci_dma_cleanup(struct device *dev)
 		iommu_device_unuse_default_domain(dev);
 }
 
-struct bus_type pci_bus_type = {
+const struct bus_type pci_bus_type = {
 	.name		= "pci",
 	.match		= pci_bus_match,
 	.uevent		= pci_uevent,
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 40cfa716392f..5d0f4db1cab7 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -31,6 +31,10 @@
 #include <linux/aperture.h>
 #include "pci.h"
 
+#ifndef ARCH_PCI_DEV_GROUPS
+#define ARCH_PCI_DEV_GROUPS
+#endif
+
 static int sysfs_initialized;	/* = 0 */
 
 /* show configuration fields */
@@ -1624,6 +1628,7 @@ const struct attribute_group *pci_dev_groups[] = {
 	&pci_dev_acpi_attr_group,
 #endif
 	&pci_dev_resource_resize_group,
+	ARCH_PCI_DEV_GROUPS
 	NULL,
 };
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index ffaaca0978cb..7d85c04fbba2 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1283,7 +1283,9 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
 {
 	int delay = 1;
 	bool retrain = false;
-	struct pci_dev *bridge;
+	struct pci_dev *root, *bridge;
+
+	root = pcie_find_root_port(dev);
 
 	if (pci_is_pcie(dev)) {
 		bridge = pci_upstream_bridge(dev);
@@ -1292,16 +1294,23 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
 	}
 
 	/*
-	 * After reset, the device should not silently discard config
-	 * requests, but it may still indicate that it needs more time by
-	 * responding to them with CRS completions.  The Root Port will
-	 * generally synthesize ~0 (PCI_ERROR_RESPONSE) data to complete
-	 * the read (except when CRS SV is enabled and the read was for the
-	 * Vendor ID; in that case it synthesizes 0x0001 data).
+	 * The caller has already waited long enough after a reset that the
+	 * device should respond to config requests, but it may respond
+	 * with Request Retry Status (RRS) if it needs more time to
+	 * initialize.
 	 *
-	 * Wait for the device to return a non-CRS completion.  Read the
-	 * Command register instead of Vendor ID so we don't have to
-	 * contend with the CRS SV value.
+	 * If the device is below a Root Port with Configuration RRS
+	 * Software Visibility enabled, reading the Vendor ID returns a
+	 * special data value if the device responded with RRS.  Read the
+	 * Vendor ID until we get non-RRS status.
+	 *
+	 * If there's no Root Port or Configuration RRS Software Visibility
+	 * is not enabled, the device may still respond with RRS, but
+	 * hardware may retry the config request.  If no retries receive
+	 * Successful Completion, hardware generally synthesizes ~0
+	 * (PCI_ERROR_RESPONSE) data to complete the read.  Reading Vendor
+	 * ID for VFs and non-existent devices also returns ~0, so read the
+	 * Command register until it returns something other than ~0.
 	 */
 	for (;;) {
 		u32 id;
@@ -1311,9 +1320,15 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
 			return -ENOTTY;
 		}
 
-		pci_read_config_dword(dev, PCI_COMMAND, &id);
-		if (!PCI_POSSIBLE_ERROR(id))
-			break;
+		if (root && root->config_rrs_sv) {
+			pci_read_config_dword(dev, PCI_VENDOR_ID, &id);
+			if (!pci_bus_rrs_vendor_id(id))
+				break;
+		} else {
+			pci_read_config_dword(dev, PCI_COMMAND, &id);
+			if (!PCI_POSSIBLE_ERROR(id))
+				break;
+		}
 
 		if (delay > timeout) {
 			pci_warn(dev, "not ready %dms after %s; giving up\n",
@@ -1324,7 +1339,7 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
 		if (delay > PCI_RESET_WAIT) {
 			if (retrain) {
 				retrain = false;
-				if (pcie_failed_link_retrain(bridge)) {
+				if (pcie_failed_link_retrain(bridge) == 0) {
 					delay = 1;
 					continue;
 				}
@@ -4718,7 +4733,15 @@ int pcie_retrain_link(struct pci_dev *pdev, bool use_lt)
 		pcie_capability_clear_word(pdev, PCI_EXP_LNKCTL, PCI_EXP_LNKCTL_RL);
 	}
 
-	return pcie_wait_for_link_status(pdev, use_lt, !use_lt);
+	rc = pcie_wait_for_link_status(pdev, use_lt, !use_lt);
+
+	/*
+	 * Clear LBMS after a manual retrain so that the bit can be used
+	 * to track link speed or width changes made by hardware itself
+	 * in attempt to correct unreliable link operation.
+	 */
+	pcie_capability_write_word(pdev, PCI_EXP_LNKSTA, PCI_EXP_LNKSTA_LBMS);
+	return rc;
 }
 
 /**
@@ -5672,8 +5695,10 @@ static void pci_bus_restore_locked(struct pci_bus *bus)
 
 	list_for_each_entry(dev, &bus->devices, bus_list) {
 		pci_dev_restore(dev);
-		if (dev->subordinate)
+		if (dev->subordinate) {
+			pci_bridge_wait_for_secondary_bus(dev, "bus reset");
 			pci_bus_restore_locked(dev->subordinate);
+		}
 	}
 }
 
@@ -5707,8 +5732,10 @@ static void pci_slot_restore_locked(struct pci_slot *slot)
 		if (!dev->slot || dev->slot != slot)
 			continue;
 		pci_dev_restore(dev);
-		if (dev->subordinate)
+		if (dev->subordinate) {
+			pci_bridge_wait_for_secondary_bus(dev, "slot reset");
 			pci_bus_restore_locked(dev->subordinate);
+		}
 	}
 }
 
@@ -6802,16 +6829,16 @@ static int of_pci_bus_find_domain_nr(struct device *parent)
 	return ida_alloc(&pci_domain_nr_dynamic_ida, GFP_KERNEL);
 }
 
-static void of_pci_bus_release_domain_nr(struct pci_bus *bus, struct device *parent)
+static void of_pci_bus_release_domain_nr(struct device *parent, int domain_nr)
 {
-	if (bus->domain_nr < 0)
+	if (domain_nr < 0)
 		return;
 
 	/* Release domain from IDA where it was allocated. */
-	if (of_get_pci_domain_nr(parent->of_node) == bus->domain_nr)
-		ida_free(&pci_domain_nr_static_ida, bus->domain_nr);
+	if (of_get_pci_domain_nr(parent->of_node) == domain_nr)
+		ida_free(&pci_domain_nr_static_ida, domain_nr);
 	else
-		ida_free(&pci_domain_nr_dynamic_ida, bus->domain_nr);
+		ida_free(&pci_domain_nr_dynamic_ida, domain_nr);
 }
 
 int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent)
@@ -6820,11 +6847,11 @@ int pci_bus_find_domain_nr(struct pci_bus *bus, struct device *parent)
 			       acpi_pci_bus_find_domain_nr(bus);
 }
 
-void pci_bus_release_domain_nr(struct pci_bus *bus, struct device *parent)
+void pci_bus_release_domain_nr(struct device *parent, int domain_nr)
 {
 	if (!acpi_disabled)
 		return;
-	of_pci_bus_release_domain_nr(bus, parent);
+	of_pci_bus_release_domain_nr(parent, domain_nr);
 }
 #endif
 
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 79c8398f3938..14d00ce45bfa 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -13,10 +13,25 @@
 
 #define PCIE_LINK_RETRAIN_TIMEOUT_MS	1000
 
-/* Power stable to PERST# inactive from PCIe card Electromechanical Spec */
+/*
+ * Power stable to PERST# inactive.
+ *
+ * See the "Power Sequencing and Reset Signal Timings" table of the PCI Express
+ * Card Electromechanical Specification, Revision 5.1, Section 2.9.2, Symbol
+ * "T_PVPERL".
+ */
 #define PCIE_T_PVPERL_MS		100
 
 /*
+ * REFCLK stable before PERST# inactive.
+ *
+ * See the "Power Sequencing and Reset Signal Timings" table of the PCI Express
+ * Card Electromechanical Specification, Revision 5.1, Section 2.9.2, Symbol
+ * "T_PERST-CLK".
+ */
+#define PCIE_T_PERST_CLK_US		100
+
+/*
  * End of conventional reset (PERST# de-asserted) to first configuration
  * request (device able to respond with a "Request Retry Status" completion),
  * from PCIe r6.0, sec 6.6.1.
@@ -124,7 +139,6 @@ void pcie_clear_device_status(struct pci_dev *dev);
 void pcie_clear_root_pme_status(struct pci_dev *dev);
 bool pci_check_pme_status(struct pci_dev *dev);
 void pci_pme_wakeup_bus(struct pci_bus *bus);
-int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
 void pci_pme_restore(struct pci_dev *dev);
 bool pci_dev_need_resume(struct pci_dev *dev);
 void pci_dev_adjust_pme(struct pci_dev *dev);
@@ -139,6 +153,11 @@ bool pci_bridge_d3_possible(struct pci_dev *dev);
 void pci_bridge_d3_update(struct pci_dev *dev);
 int pci_bridge_wait_for_secondary_bus(struct pci_dev *dev, char *reset_type);
 
+static inline bool pci_bus_rrs_vendor_id(u32 l)
+{
+	return (l & 0xffff) == PCI_VENDOR_ID_PCI_SIG;
+}
+
 static inline void pci_wakeup_event(struct pci_dev *dev)
 {
 	/* Wait 100 ms before the system can be put into a sleep state. */
@@ -169,7 +188,6 @@ static inline bool pcie_downstream_port(const struct pci_dev *dev)
 }
 
 void pci_vpd_init(struct pci_dev *dev);
-void pci_vpd_release(struct pci_dev *dev);
 extern const struct attribute_group pci_dev_vpd_attr_group;
 
 /* PCI Virtual Channel */
@@ -290,10 +308,10 @@ void pci_put_host_bridge_device(struct device *dev);
 
 int pci_configure_extended_tags(struct pci_dev *dev, void *ign);
 bool pci_bus_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
-				int crs_timeout);
+				int rrs_timeout);
 bool pci_bus_generic_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *pl,
-					int crs_timeout);
-int pci_idt_bus_quirk(struct pci_bus *bus, int devfn, u32 *pl, int crs_timeout);
+					int rrs_timeout);
+int pci_idt_bus_quirk(struct pci_bus *bus, int devfn, u32 *pl, int rrs_timeout);
 
 int pci_setup_device(struct pci_dev *dev);
 int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
@@ -398,6 +416,14 @@ static inline void pci_doe_destroy(struct pci_dev *pdev) { }
 static inline void pci_doe_disconnected(struct pci_dev *pdev) { }
 #endif
 
+#ifdef CONFIG_PCI_NPEM
+void pci_npem_create(struct pci_dev *dev);
+void pci_npem_remove(struct pci_dev *dev);
+#else
+static inline void pci_npem_create(struct pci_dev *dev) { }
+static inline void pci_npem_remove(struct pci_dev *dev) { }
+#endif
+
 /**
  * pci_dev_set_io_state - Set the new error state if possible.
  *
@@ -606,7 +632,7 @@ void pci_acs_init(struct pci_dev *dev);
 int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
 int pci_dev_specific_enable_acs(struct pci_dev *dev);
 int pci_dev_specific_disable_acs_redir(struct pci_dev *dev);
-bool pcie_failed_link_retrain(struct pci_dev *dev);
+int pcie_failed_link_retrain(struct pci_dev *dev);
 #else
 static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev,
 					       u16 acs_flags)
@@ -621,9 +647,9 @@ static inline int pci_dev_specific_disable_acs_redir(struct pci_dev *dev)
 {
 	return -ENOTTY;
 }
-static inline bool pcie_failed_link_retrain(struct pci_dev *dev)
+static inline int pcie_failed_link_retrain(struct pci_dev *dev)
 {
-	return false;
+	return -ENOTTY;
 }
 #endif
 
@@ -887,8 +913,6 @@ static inline pci_power_t mid_pci_get_power_state(struct pci_dev *pdev)
 #endif
 
 int pcim_intx(struct pci_dev *dev, int enable);
-
-int pcim_request_region(struct pci_dev *pdev, int bar, const char *name);
 int pcim_request_region_exclusive(struct pci_dev *pdev, int bar,
 				  const char *name);
 void pcim_release_region(struct pci_dev *pdev, int bar);
diff --git a/drivers/pci/pcie/aer_inject.c b/drivers/pci/pcie/aer_inject.c
index f81b2303bf6a..91acc7b17f68 100644
--- a/drivers/pci/pcie/aer_inject.c
+++ b/drivers/pci/pcie/aer_inject.c
@@ -430,7 +430,7 @@ static int aer_inject(struct aer_error_inj *einj)
 		else
 			rperr->root_status |= PCI_ERR_ROOT_COR_RCV;
 		rperr->source_id &= 0xffff0000;
-		rperr->source_id |= (einj->bus << 8) | devfn;
+		rperr->source_id |= PCI_DEVID(einj->bus, devfn);
 	}
 	if (einj->uncor_status) {
 		if (rperr->root_status & PCI_ERR_ROOT_UNCOR_RCV)
@@ -443,7 +443,7 @@ static int aer_inject(struct aer_error_inj *einj)
 			rperr->root_status |= PCI_ERR_ROOT_NONFATAL_RCV;
 		rperr->root_status |= PCI_ERR_ROOT_UNCOR_RCV;
 		rperr->source_id &= 0x0000ffff;
-		rperr->source_id |= ((einj->bus << 8) | devfn) << 16;
+		rperr->source_id |= PCI_DEVID(einj->bus, devfn) << 16;
 	}
 	spin_unlock_irqrestore(&inject_lock, flags);
 
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index b14b9876c030..4f68414c3086 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -1061,7 +1061,7 @@ unregister:
 
 free:
 #ifdef CONFIG_PCI_DOMAINS_GENERIC
-	pci_bus_release_domain_nr(bus, parent);
+	pci_bus_release_domain_nr(parent, bus->domain_nr);
 #endif
 	kfree(bus);
 	return err;
@@ -1203,15 +1203,17 @@ struct pci_bus *pci_add_new_bus(struct pci_bus *parent, struct pci_dev *dev,
 }
 EXPORT_SYMBOL(pci_add_new_bus);
 
-static void pci_enable_crs(struct pci_dev *pdev)
+static void pci_enable_rrs_sv(struct pci_dev *pdev)
 {
 	u16 root_cap = 0;
 
-	/* Enable CRS Software Visibility if supported */
+	/* Enable Configuration RRS Software Visibility if supported */
 	pcie_capability_read_word(pdev, PCI_EXP_RTCAP, &root_cap);
-	if (root_cap & PCI_EXP_RTCAP_CRSVIS)
+	if (root_cap & PCI_EXP_RTCAP_RRS_SV) {
 		pcie_capability_set_word(pdev, PCI_EXP_RTCTL,
-					 PCI_EXP_RTCTL_CRSSVE);
+					 PCI_EXP_RTCTL_RRS_SVE);
+		pdev->config_rrs_sv = 1;
+	}
 }
 
 static unsigned int pci_scan_child_bus_extend(struct pci_bus *bus,
@@ -1326,7 +1328,7 @@ static int pci_scan_bridge_extend(struct pci_bus *bus, struct pci_dev *dev,
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL,
 			      bctl & ~PCI_BRIDGE_CTL_MASTER_ABORT);
 
-	pci_enable_crs(dev);
+	pci_enable_rrs_sv(dev);
 
 	if ((secondary || subordinate) && !pcibios_assign_all_busses() &&
 	    !is_cardbus && !broken) {
@@ -2343,28 +2345,23 @@ struct pci_dev *pci_alloc_dev(struct pci_bus *bus)
 }
 EXPORT_SYMBOL(pci_alloc_dev);
 
-static bool pci_bus_crs_vendor_id(u32 l)
-{
-	return (l & 0xffff) == PCI_VENDOR_ID_PCI_SIG;
-}
-
-static bool pci_bus_wait_crs(struct pci_bus *bus, int devfn, u32 *l,
+static bool pci_bus_wait_rrs(struct pci_bus *bus, int devfn, u32 *l,
 			     int timeout)
 {
 	int delay = 1;
 
-	if (!pci_bus_crs_vendor_id(*l))
-		return true;	/* not a CRS completion */
+	if (!pci_bus_rrs_vendor_id(*l))
+		return true;	/* not a Configuration RRS completion */
 
 	if (!timeout)
-		return false;	/* CRS, but caller doesn't want to wait */
+		return false;	/* RRS, but caller doesn't want to wait */
 
 	/*
 	 * We got the reserved Vendor ID that indicates a completion with
-	 * Configuration Request Retry Status (CRS).  Retry until we get a
+	 * Configuration Request Retry Status (RRS).  Retry until we get a
 	 * valid Vendor ID or we time out.
 	 */
-	while (pci_bus_crs_vendor_id(*l)) {
+	while (pci_bus_rrs_vendor_id(*l)) {
 		if (delay > timeout) {
 			pr_warn("pci %04x:%02x:%02x.%d: not ready after %dms; giving up\n",
 				pci_domain_nr(bus), bus->number,
@@ -2403,8 +2400,8 @@ bool pci_bus_generic_read_dev_vendor_id(struct pci_bus *bus, int devfn, u32 *l,
 	    *l == 0x0000ffff || *l == 0xffff0000)
 		return false;
 
-	if (pci_bus_crs_vendor_id(*l))
-		return pci_bus_wait_crs(bus, devfn, l, timeout);
+	if (pci_bus_rrs_vendor_id(*l))
+		return pci_bus_wait_rrs(bus, devfn, l, timeout);
 
 	return true;
 }
@@ -2593,6 +2590,8 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
 	dev->match_driver = false;
 	ret = device_add(&dev->dev);
 	WARN_ON(ret < 0);
+
+	pci_npem_create(dev);
 }
 
 struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn)
diff --git a/drivers/pci/pwrctl/pci-pwrctl-pwrseq.c b/drivers/pci/pwrctl/pci-pwrctl-pwrseq.c
index f07758c9edad..a23a4312574b 100644
--- a/drivers/pci/pwrctl/pci-pwrctl-pwrseq.c
+++ b/drivers/pci/pwrctl/pci-pwrctl-pwrseq.c
@@ -67,6 +67,11 @@ static const struct of_device_id pci_pwrctl_pwrseq_of_match[] = {
 		.data = "wlan",
 	},
 	{
+		/* ATH11K in WCN6855 package. */
+		.compatible = "pci17cb,1103",
+		.data = "wlan",
+	},
+	{
 		/* ATH12K in WCN7850 package. */
 		.compatible = "pci17cb,1107",
 		.data = "wlan",
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index a2ce4e08edf5..dccb60c1d9cc 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -66,7 +66,7 @@
  * apply this erratum workaround to any downstream ports as long as they
  * support Link Active reporting and have the Link Control 2 register.
  * Restrict the speed to 2.5GT/s then with the Target Link Speed field,
- * request a retrain and wait 200ms for the data link to go up.
+ * request a retrain and check the result.
  *
  * If this turns out successful and we know by the Vendor:Device ID it is
  * safe to do so, then lift the restriction, letting the devices negotiate
@@ -74,33 +74,45 @@
  * firmware may have already arranged and lift it with ports that already
  * report their data link being up.
  *
- * Return TRUE if the link has been successfully retrained, otherwise FALSE.
+ * Otherwise revert the speed to the original setting and request a retrain
+ * again to remove any residual state, ignoring the result as it's supposed
+ * to fail anyway.
+ *
+ * Return 0 if the link has been successfully retrained.  Return an error
+ * if retraining was not needed or we attempted a retrain and it failed.
  */
-bool pcie_failed_link_retrain(struct pci_dev *dev)
+int pcie_failed_link_retrain(struct pci_dev *dev)
 {
 	static const struct pci_device_id ids[] = {
 		{ PCI_VDEVICE(ASMEDIA, 0x2824) }, /* ASMedia ASM2824 */
 		{}
 	};
 	u16 lnksta, lnkctl2;
+	int ret = -ENOTTY;
 
 	if (!pci_is_pcie(dev) || !pcie_downstream_port(dev) ||
 	    !pcie_cap_has_lnkctl2(dev) || !dev->link_active_reporting)
-		return false;
+		return ret;
 
 	pcie_capability_read_word(dev, PCI_EXP_LNKCTL2, &lnkctl2);
 	pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnksta);
 	if ((lnksta & (PCI_EXP_LNKSTA_LBMS | PCI_EXP_LNKSTA_DLLLA)) ==
 	    PCI_EXP_LNKSTA_LBMS) {
+		u16 oldlnkctl2 = lnkctl2;
+
 		pci_info(dev, "broken device, retraining non-functional downstream link at 2.5GT/s\n");
 
 		lnkctl2 &= ~PCI_EXP_LNKCTL2_TLS;
 		lnkctl2 |= PCI_EXP_LNKCTL2_TLS_2_5GT;
 		pcie_capability_write_word(dev, PCI_EXP_LNKCTL2, lnkctl2);
 
-		if (pcie_retrain_link(dev, false)) {
+		ret = pcie_retrain_link(dev, false);
+		if (ret) {
 			pci_info(dev, "retraining failed\n");
-			return false;
+			pcie_capability_write_word(dev, PCI_EXP_LNKCTL2,
+						   oldlnkctl2);
+			pcie_retrain_link(dev, true);
+			return ret;
 		}
 
 		pcie_capability_read_word(dev, PCI_EXP_LNKSTA, &lnksta);
@@ -117,13 +129,14 @@ bool pcie_failed_link_retrain(struct pci_dev *dev)
 		lnkctl2 |= lnkcap & PCI_EXP_LNKCAP_SLS;
 		pcie_capability_write_word(dev, PCI_EXP_LNKCTL2, lnkctl2);
 
-		if (pcie_retrain_link(dev, false)) {
+		ret = pcie_retrain_link(dev, false);
+		if (ret) {
 			pci_info(dev, "retraining failed\n");
-			return false;
+			return ret;
 		}
 	}
 
-	return true;
+	return ret;
 }
 
 static ktime_t fixup_debug_start(struct pci_dev *dev,
@@ -3608,6 +3621,8 @@ DECLARE_PCI_FIXUP_FINAL(0x1814, 0x0601, /* Ralink RT2800 802.11n PCI */
 			quirk_broken_intx_masking);
 DECLARE_PCI_FIXUP_FINAL(0x1b7c, 0x0004, /* Ceton InfiniTV4 */
 			quirk_broken_intx_masking);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_20K2,
+			quirk_broken_intx_masking);
 
 /*
  * Realtek RTL8169 PCI Gigabit Ethernet Controller (rev 10)
@@ -4246,6 +4261,10 @@ static void quirk_dma_func0_alias(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe832, quirk_dma_func0_alias);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_RICOH, 0xe476, quirk_dma_func0_alias);
 
+/* Some Glenfly chips use function 0 as the PCIe Requester ID for DMA */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_GLENFLY, 0x3d40, quirk_dma_func0_alias);
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_GLENFLY, 0x3d41, quirk_dma_func0_alias);
+
 static void quirk_dma_func1_alias(struct pci_dev *dev)
 {
 	if (PCI_FUNC(dev->devfn) != 1)
@@ -5070,6 +5089,8 @@ static const struct pci_dev_acs_enabled {
 	/* QCOM QDF2xxx root ports */
 	{ PCI_VENDOR_ID_QCOM, 0x0400, pci_quirk_qcom_rp_acs },
 	{ PCI_VENDOR_ID_QCOM, 0x0401, pci_quirk_qcom_rp_acs },
+	/* QCOM SA8775P root port */
+	{ PCI_VENDOR_ID_QCOM, 0x0115, pci_quirk_qcom_rp_acs },
 	/* HXT SD4800 root ports. The ACS design is same as QCOM QDF2xxx */
 	{ PCI_VENDOR_ID_HXT, 0x0401, pci_quirk_qcom_rp_acs },
 	/* Intel PCH root ports */
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 4770cb87e3f0..e4ce1145aa3e 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -50,6 +50,8 @@ static void pci_destroy_dev(struct pci_dev *dev)
 	if (!dev->dev.kobj.parent)
 		return;
 
+	pci_npem_remove(dev);
+
 	device_del(&dev->dev);
 
 	down_write(&pci_bus_sem);
@@ -179,7 +181,7 @@ void pci_remove_root_bus(struct pci_bus *bus)
 #ifdef CONFIG_PCI_DOMAINS_GENERIC
 	/* Release domain_nr if it was dynamically allocated */
 	if (host_bridge->domain_nr == PCI_DOMAIN_NR_NOT_SET)
-		pci_bus_release_domain_nr(bus, host_bridge->dev.parent);
+		pci_bus_release_domain_nr(host_bridge->dev.parent, bus->domain_nr);
 #endif
 
 	pci_remove_bus(bus);