Merge tag 'usb-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt / PHY driver updates from Greg KH:
 "Here is the big set of USB, Thunderbolt, and PHY driver updates for
  6.6-rc1. Included in here are:

   - PHY driver additions and cleanups

   - Thunderbolt minor additions and fixes

   - USB MIDI 2 gadget support added

   - dwc3 driver updates and additions

   - Removal of some old USB wireless code that was missed when that
     codebase was originally removed a few years ago, cleaning up some
     core USB code paths

   - USB core potential use-after-free fixes that syzbot from different
     people/groups keeps tripping over

   - typec updates and additions

   - gadget fixes and cleanups

   - loads of smaller USB core and driver cleanups all over the place

  Full details are in the shortlog. All of these have been in linux-next
  for a while with no reported problems"

* tag 'usb-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits)
  platform/chrome: cros_ec_typec: Configure Retimer cable type
  tcpm: Avoid soft reset when partner does not support get_status
  usb: typec: tcpm: reset counter when enter into unattached state after try role
  usb: typec: tcpm: set initial svdm version based on pd revision
  USB: serial: option: add FOXCONN T99W368/T99W373 product
  USB: serial: option: add Quectel EM05G variant (0x030e)
  usb: dwc2: add pci_device_id driver_data parse support
  usb: gadget: remove max support speed info in bind operation
  usb: gadget: composite: cleanup function config_ep_by_speed_and_alt()
  usb: gadget: config: remove max speed check in usb_assign_descriptors()
  usb: gadget: unconditionally allocate hs/ss descriptor in bind operation
  usb: gadget: f_uvc: change endpoint allocation in uvc_function_bind()
  usb: gadget: add a inline function gether_bitrate()
  usb: gadget: use working speed to calcaulate network bitrate and qlen
  dt-bindings: usb: samsung,exynos-dwc3: Add Exynos850 support
  usb: dwc3: exynos: Add support for Exynos850 variant
  usb: gadget: udc-xilinx: fix incorrect type in assignment warning
  usb: gadget: udc-xilinx: fix cast from restricted __le16 warning
  usb: gadget: udc-xilinx: fix restricted __le16 degrades to integer warning
  USB: dwc2: hande irq on dead controller correctly
  ...

6 files changed, 2130 insertions, 0 deletions

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 8dba9596408f..aac670b90589 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -87,6 +87,7 @@ source "drivers/phy/motorola/Kconfig"
 source "drivers/phy/mscc/Kconfig"
 source "drivers/phy/qualcomm/Kconfig"
 source "drivers/phy/ralink/Kconfig"
+source "drivers/phy/realtek/Kconfig"
 source "drivers/phy/renesas/Kconfig"
 source "drivers/phy/rockchip/Kconfig"
 source "drivers/phy/samsung/Kconfig"
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 54f312c10a40..ba7c100b14fc 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -26,6 +26,7 @@ obj-y					+= allwinner/	\
 					   mscc/	\
 					   qualcomm/	\
 					   ralink/	\
+					   realtek/	\
 					   renesas/	\
 					   rockchip/	\
 					   samsung/	\
diff --git a/drivers/phy/realtek/Kconfig b/drivers/phy/realtek/Kconfig
new file mode 100644
index 000000000000..650e20ed69af
--- /dev/null
+++ b/drivers/phy/realtek/Kconfig
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Phy drivers for Realtek platforms
+#
+config PHY_RTK_RTD_USB2PHY
+	tristate "Realtek RTD USB2 PHY Transceiver Driver"
+	depends on USB_SUPPORT
+	select GENERIC_PHY
+	select USB_PHY
+	select USB_COMMON
+	help
+	  Enable this to support Realtek SoC USB2 phy transceiver.
+	  The DHC (digital home center) RTD series SoCs used the Synopsys
+	  DWC3 USB IP. This driver will do the PHY initialization
+	  of the parameters.
+
+config PHY_RTK_RTD_USB3PHY
+	tristate "Realtek RTD USB3 PHY Transceiver Driver"
+	depends on USB_SUPPORT
+	select GENERIC_PHY
+	select USB_PHY
+	select USB_COMMON
+	help
+	  Enable this to support Realtek SoC USB3 phy transceiver.
+	  The DHC (digital home center) RTD series SoCs used the Synopsys
+	  DWC3 USB IP. This driver will do the PHY initialization
+	  of the parameters.
diff --git a/drivers/phy/realtek/Makefile b/drivers/phy/realtek/Makefile
new file mode 100644
index 000000000000..ed7b47ff8a26
--- /dev/null
+++ b/drivers/phy/realtek/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PHY_RTK_RTD_USB2PHY)	+= phy-rtk-usb2.o
+obj-$(CONFIG_PHY_RTK_RTD_USB3PHY)	+= phy-rtk-usb3.o
diff --git a/drivers/phy/realtek/phy-rtk-usb2.c b/drivers/phy/realtek/phy-rtk-usb2.c
new file mode 100644
index 000000000000..5e7ee060b404
--- /dev/null
+++ b/drivers/phy/realtek/phy-rtk-usb2.c
@@ -0,0 +1,1331 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  phy-rtk-usb2.c RTK usb2.0 PHY driver
+ *
+ * Copyright (C) 2023 Realtek Semiconductor Corporation
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/regmap.h>
+#include <linux/sys_soc.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/usb.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/hcd.h>
+
+/* GUSB2PHYACCn register */
+#define PHY_NEW_REG_REQ BIT(25)
+#define PHY_VSTS_BUSY   BIT(23)
+#define PHY_VCTRL_SHIFT 8
+#define PHY_REG_DATA_MASK 0xff
+
+#define GET_LOW_NIBBLE(addr) ((addr) & 0x0f)
+#define GET_HIGH_NIBBLE(addr) (((addr) & 0xf0) >> 4)
+
+#define EFUS_USB_DC_CAL_RATE 2
+#define EFUS_USB_DC_CAL_MAX 7
+
+#define EFUS_USB_DC_DIS_RATE 1
+#define EFUS_USB_DC_DIS_MAX 7
+
+#define MAX_PHY_DATA_SIZE 20
+#define OFFEST_PHY_READ 0x20
+
+#define MAX_USB_PHY_NUM 4
+#define MAX_USB_PHY_PAGE0_DATA_SIZE 16
+#define MAX_USB_PHY_PAGE1_DATA_SIZE 16
+#define MAX_USB_PHY_PAGE2_DATA_SIZE 8
+
+#define SET_PAGE_OFFSET 0xf4
+#define SET_PAGE_0 0x9b
+#define SET_PAGE_1 0xbb
+#define SET_PAGE_2 0xdb
+
+#define PAGE_START 0xe0
+#define PAGE0_0XE4 0xe4
+#define PAGE0_0XE6 0xe6
+#define PAGE0_0XE7 0xe7
+#define PAGE1_0XE0 0xe0
+#define PAGE1_0XE2 0xe2
+
+#define SENSITIVITY_CTRL (BIT(4) | BIT(5) | BIT(6))
+#define ENABLE_AUTO_SENSITIVITY_CALIBRATION BIT(2)
+#define DEFAULT_DC_DRIVING_VALUE (0x8)
+#define DEFAULT_DC_DISCONNECTION_VALUE (0x6)
+#define HS_CLK_SELECT BIT(6)
+
+struct phy_reg {
+	void __iomem *reg_wrap_vstatus;
+	void __iomem *reg_gusb2phyacc0;
+	int vstatus_index;
+};
+
+struct phy_data {
+	u8 addr;
+	u8 data;
+};
+
+struct phy_cfg {
+	int page0_size;
+	struct phy_data page0[MAX_USB_PHY_PAGE0_DATA_SIZE];
+	int page1_size;
+	struct phy_data page1[MAX_USB_PHY_PAGE1_DATA_SIZE];
+	int page2_size;
+	struct phy_data page2[MAX_USB_PHY_PAGE2_DATA_SIZE];
+
+	int num_phy;
+
+	bool check_efuse;
+	int check_efuse_version;
+#define CHECK_EFUSE_V1 1
+#define CHECK_EFUSE_V2 2
+	int efuse_dc_driving_rate;
+	int efuse_dc_disconnect_rate;
+	int dc_driving_mask;
+	int dc_disconnect_mask;
+	bool usb_dc_disconnect_at_page0;
+	int driving_updated_for_dev_dis;
+
+	bool do_toggle;
+	bool do_toggle_driving;
+	bool use_default_parameter;
+	bool is_double_sensitivity_mode;
+};
+
+struct phy_parameter {
+	struct phy_reg phy_reg;
+
+	/* Get from efuse */
+	s8 efuse_usb_dc_cal;
+	s8 efuse_usb_dc_dis;
+
+	/* Get from dts */
+	bool inverse_hstx_sync_clock;
+	u32 driving_level;
+	s32 driving_level_compensate;
+	s32 disconnection_compensate;
+};
+
+struct rtk_phy {
+	struct usb_phy phy;
+	struct device *dev;
+
+	struct phy_cfg *phy_cfg;
+	int num_phy;
+	struct phy_parameter *phy_parameter;
+
+	struct dentry *debug_dir;
+};
+
+/* mapping 0xE0 to 0 ... 0xE7 to 7, 0xF0 to 8 ,,, 0xF7 to 15 */
+static inline int page_addr_to_array_index(u8 addr)
+{
+	return (int)((((addr) - PAGE_START) & 0x7) +
+		((((addr) - PAGE_START) & 0x10) >> 1));
+}
+
+static inline u8 array_index_to_page_addr(int index)
+{
+	return ((((index) + PAGE_START) & 0x7) +
+		((((index) & 0x8) << 1) + PAGE_START));
+}
+
+#define PHY_IO_TIMEOUT_USEC		(50000)
+#define PHY_IO_DELAY_US			(100)
+
+static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result)
+{
+	int ret;
+	unsigned int val;
+
+	ret = read_poll_timeout(readl, val, ((val & mask) == result),
+				PHY_IO_DELAY_US, PHY_IO_TIMEOUT_USEC, false, reg);
+	if (ret) {
+		pr_err("%s can't program USB phy\n", __func__);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static char rtk_phy_read(struct phy_reg *phy_reg, char addr)
+{
+	void __iomem *reg_gusb2phyacc0 = phy_reg->reg_gusb2phyacc0;
+	unsigned int val;
+	int ret = 0;
+
+	addr -= OFFEST_PHY_READ;
+
+	/* polling until VBusy == 0 */
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return (char)ret;
+
+	/* VCtrl = low nibble of addr, and set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return (char)ret;
+
+	/* VCtrl = high nibble of addr, and set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return (char)ret;
+
+	val = readl(reg_gusb2phyacc0);
+
+	return (char)(val & PHY_REG_DATA_MASK);
+}
+
+static int rtk_phy_write(struct phy_reg *phy_reg, char addr, char data)
+{
+	unsigned int val;
+	void __iomem *reg_wrap_vstatus = phy_reg->reg_wrap_vstatus;
+	void __iomem *reg_gusb2phyacc0 = phy_reg->reg_gusb2phyacc0;
+	int shift_bits = phy_reg->vstatus_index * 8;
+	int ret = 0;
+
+	/* write data to VStatusOut2 (data output to phy) */
+	writel((u32)data << shift_bits, reg_wrap_vstatus);
+
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return ret;
+
+	/* VCtrl = low nibble of addr, set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return ret;
+
+	/* VCtrl = high nibble of addr, set PHY_NEW_REG_REQ */
+	val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+
+	writel(val, reg_gusb2phyacc0);
+	ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int rtk_phy_set_page(struct phy_reg *phy_reg, int page)
+{
+	switch (page) {
+	case 0:
+		return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_0);
+	case 1:
+		return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_1);
+	case 2:
+		return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_2);
+	default:
+		pr_err("%s error page=%d\n", __func__, page);
+	}
+
+	return -EINVAL;
+}
+
+static u8 __updated_dc_disconnect_level_page0_0xe4(struct phy_cfg *phy_cfg,
+						   struct phy_parameter *phy_parameter, u8 data)
+{
+	u8 ret;
+	s32 val;
+	s32 dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+	int offset = 4;
+
+	val = (s32)((data >> offset) & dc_disconnect_mask)
+		     + phy_parameter->efuse_usb_dc_dis
+		     + phy_parameter->disconnection_compensate;
+
+	if (val > dc_disconnect_mask)
+		val = dc_disconnect_mask;
+	else if (val < 0)
+		val = 0;
+
+	ret = (data & (~(dc_disconnect_mask << offset))) |
+		    (val & dc_disconnect_mask) << offset;
+
+	return ret;
+}
+
+/* updated disconnect level at page0 */
+static void update_dc_disconnect_level_at_page0(struct rtk_phy *rtk_phy,
+						struct phy_parameter *phy_parameter, bool update)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_data *phy_data_page;
+	struct phy_data *phy_data;
+	u8 addr, data;
+	int offset = 4;
+	s32 dc_disconnect_mask;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_reg = &phy_parameter->phy_reg;
+
+	/* Set page 0 */
+	phy_data_page = phy_cfg->page0;
+	rtk_phy_set_page(phy_reg, 0);
+
+	i = page_addr_to_array_index(PAGE0_0XE4);
+	phy_data = phy_data_page + i;
+	if (!phy_data->addr) {
+		phy_data->addr = PAGE0_0XE4;
+		phy_data->data = rtk_phy_read(phy_reg, PAGE0_0XE4);
+	}
+
+	addr = phy_data->addr;
+	data = phy_data->data;
+	dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+	if (update)
+		data = __updated_dc_disconnect_level_page0_0xe4(phy_cfg, phy_parameter, data);
+	else
+		data = (data & ~(dc_disconnect_mask << offset)) |
+			(DEFAULT_DC_DISCONNECTION_VALUE << offset);
+
+	if (rtk_phy_write(phy_reg, addr, data))
+		dev_err(rtk_phy->dev,
+			"%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+			__func__, addr, data);
+}
+
+static u8 __updated_dc_disconnect_level_page1_0xe2(struct phy_cfg *phy_cfg,
+						   struct phy_parameter *phy_parameter, u8 data)
+{
+	u8 ret;
+	s32 val;
+	s32 dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		val = (s32)(data & dc_disconnect_mask)
+			    + phy_parameter->efuse_usb_dc_dis
+			    + phy_parameter->disconnection_compensate;
+	} else { /* for CHECK_EFUSE_V2 or no efuse */
+		if (phy_parameter->efuse_usb_dc_dis)
+			val = (s32)(phy_parameter->efuse_usb_dc_dis +
+				    phy_parameter->disconnection_compensate);
+		else
+			val = (s32)((data & dc_disconnect_mask) +
+				    phy_parameter->disconnection_compensate);
+	}
+
+	if (val > dc_disconnect_mask)
+		val = dc_disconnect_mask;
+	else if (val < 0)
+		val = 0;
+
+	ret = (data & (~dc_disconnect_mask)) | (val & dc_disconnect_mask);
+
+	return ret;
+}
+
+/* updated disconnect level at page1 */
+static void update_dc_disconnect_level_at_page1(struct rtk_phy *rtk_phy,
+						struct phy_parameter *phy_parameter, bool update)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_data *phy_data_page;
+	struct phy_data *phy_data;
+	struct phy_reg *phy_reg;
+	u8 addr, data;
+	s32 dc_disconnect_mask;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_reg = &phy_parameter->phy_reg;
+
+	/* Set page 1 */
+	phy_data_page = phy_cfg->page1;
+	rtk_phy_set_page(phy_reg, 1);
+
+	i = page_addr_to_array_index(PAGE1_0XE2);
+	phy_data = phy_data_page + i;
+	if (!phy_data->addr) {
+		phy_data->addr = PAGE1_0XE2;
+		phy_data->data = rtk_phy_read(phy_reg, PAGE1_0XE2);
+	}
+
+	addr = phy_data->addr;
+	data = phy_data->data;
+	dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+	if (update)
+		data = __updated_dc_disconnect_level_page1_0xe2(phy_cfg, phy_parameter, data);
+	else
+		data = (data & ~dc_disconnect_mask) | DEFAULT_DC_DISCONNECTION_VALUE;
+
+	if (rtk_phy_write(phy_reg, addr, data))
+		dev_err(rtk_phy->dev,
+			"%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+			__func__, addr, data);
+}
+
+static void update_dc_disconnect_level(struct rtk_phy *rtk_phy,
+				       struct phy_parameter *phy_parameter, bool update)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+
+	if (phy_cfg->usb_dc_disconnect_at_page0)
+		update_dc_disconnect_level_at_page0(rtk_phy, phy_parameter, update);
+	else
+		update_dc_disconnect_level_at_page1(rtk_phy, phy_parameter, update);
+}
+
+static u8 __update_dc_driving_page0_0xe4(struct phy_cfg *phy_cfg,
+					 struct phy_parameter *phy_parameter, u8 data)
+{
+	s32 driving_level_compensate = phy_parameter->driving_level_compensate;
+	s32 dc_driving_mask = phy_cfg->dc_driving_mask;
+	s32 val;
+	u8 ret;
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		val = (s32)(data & dc_driving_mask) + driving_level_compensate
+			    + phy_parameter->efuse_usb_dc_cal;
+	} else { /* for CHECK_EFUSE_V2 or no efuse */
+		if (phy_parameter->efuse_usb_dc_cal)
+			val = (s32)((phy_parameter->efuse_usb_dc_cal & dc_driving_mask)
+				    + driving_level_compensate);
+		else
+			val = (s32)(data & dc_driving_mask);
+	}
+
+	if (val > dc_driving_mask)
+		val = dc_driving_mask;
+	else if (val < 0)
+		val = 0;
+
+	ret = (data & (~dc_driving_mask)) | (val & dc_driving_mask);
+
+	return ret;
+}
+
+static void update_dc_driving_level(struct rtk_phy *rtk_phy,
+				    struct phy_parameter *phy_parameter)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+
+	phy_reg = &phy_parameter->phy_reg;
+	phy_cfg = rtk_phy->phy_cfg;
+	if (!phy_cfg->page0[4].addr) {
+		rtk_phy_set_page(phy_reg, 0);
+		phy_cfg->page0[4].addr = PAGE0_0XE4;
+		phy_cfg->page0[4].data = rtk_phy_read(phy_reg, PAGE0_0XE4);
+	}
+
+	if (phy_parameter->driving_level != DEFAULT_DC_DRIVING_VALUE) {
+		u32 dc_driving_mask;
+		u8 driving_level;
+		u8 data;
+
+		data = phy_cfg->page0[4].data;
+		dc_driving_mask = phy_cfg->dc_driving_mask;
+		driving_level = data & dc_driving_mask;
+
+		dev_dbg(rtk_phy->dev, "%s driving_level=%d => dts driving_level=%d\n",
+			__func__, driving_level, phy_parameter->driving_level);
+
+		phy_cfg->page0[4].data = (data & (~dc_driving_mask)) |
+			    (phy_parameter->driving_level & dc_driving_mask);
+	}
+
+	phy_cfg->page0[4].data = __update_dc_driving_page0_0xe4(phy_cfg,
+								phy_parameter,
+								phy_cfg->page0[4].data);
+}
+
+static void update_hs_clk_select(struct rtk_phy *rtk_phy,
+				 struct phy_parameter *phy_parameter)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (phy_parameter->inverse_hstx_sync_clock) {
+		if (!phy_cfg->page0[6].addr) {
+			rtk_phy_set_page(phy_reg, 0);
+			phy_cfg->page0[6].addr = PAGE0_0XE6;
+			phy_cfg->page0[6].data = rtk_phy_read(phy_reg, PAGE0_0XE6);
+		}
+
+		phy_cfg->page0[6].data = phy_cfg->page0[6].data | HS_CLK_SELECT;
+	}
+}
+
+static void do_rtk_phy_toggle(struct rtk_phy *rtk_phy,
+			      int index, bool connect)
+{
+	struct phy_parameter *phy_parameter;
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_data *phy_data_page;
+	u8 addr, data;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (!phy_cfg->do_toggle)
+		goto out;
+
+	if (phy_cfg->is_double_sensitivity_mode)
+		goto do_toggle_driving;
+
+	/* Set page 0 */
+	rtk_phy_set_page(phy_reg, 0);
+
+	addr = PAGE0_0XE7;
+	data = rtk_phy_read(phy_reg, addr);
+
+	if (connect)
+		rtk_phy_write(phy_reg, addr, data & (~SENSITIVITY_CTRL));
+	else
+		rtk_phy_write(phy_reg, addr, data | (SENSITIVITY_CTRL));
+
+do_toggle_driving:
+
+	if (!phy_cfg->do_toggle_driving)
+		goto do_toggle;
+
+	/* Page 0 addr 0xE4 driving capability */
+
+	/* Set page 0 */
+	phy_data_page = phy_cfg->page0;
+	rtk_phy_set_page(phy_reg, 0);
+
+	i = page_addr_to_array_index(PAGE0_0XE4);
+	addr = phy_data_page[i].addr;
+	data = phy_data_page[i].data;
+
+	if (connect) {
+		rtk_phy_write(phy_reg, addr, data);
+	} else {
+		u8 value;
+		s32 tmp;
+		s32 driving_updated =
+			    phy_cfg->driving_updated_for_dev_dis;
+		s32 dc_driving_mask = phy_cfg->dc_driving_mask;
+
+		tmp = (s32)(data & dc_driving_mask) + driving_updated;
+
+		if (tmp > dc_driving_mask)
+			tmp = dc_driving_mask;
+		else if (tmp < 0)
+			tmp = 0;
+
+		value = (data & (~dc_driving_mask)) | (tmp & dc_driving_mask);
+
+		rtk_phy_write(phy_reg, addr, value);
+	}
+
+do_toggle:
+	/* restore dc disconnect level before toggle */
+	update_dc_disconnect_level(rtk_phy, phy_parameter, false);
+
+	/* Set page 1 */
+	rtk_phy_set_page(phy_reg, 1);
+
+	addr = PAGE1_0XE0;
+	data = rtk_phy_read(phy_reg, addr);
+
+	rtk_phy_write(phy_reg, addr, data &
+		      (~ENABLE_AUTO_SENSITIVITY_CALIBRATION));
+	mdelay(1);
+	rtk_phy_write(phy_reg, addr, data |
+		      (ENABLE_AUTO_SENSITIVITY_CALIBRATION));
+
+	/* update dc disconnect level after toggle */
+	update_dc_disconnect_level(rtk_phy, phy_parameter, true);
+
+out:
+	return;
+}
+
+static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index)
+{
+	struct phy_parameter *phy_parameter;
+	struct phy_cfg *phy_cfg;
+	struct phy_data *phy_data_page;
+	struct phy_reg *phy_reg;
+	int i;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (phy_cfg->use_default_parameter) {
+		dev_dbg(rtk_phy->dev, "%s phy#%d use default parameter\n",
+			__func__, index);
+		goto do_toggle;
+	}
+
+	/* Set page 0 */
+	phy_data_page = phy_cfg->page0;
+	rtk_phy_set_page(phy_reg, 0);
+
+	for (i = 0; i < phy_cfg->page0_size; i++) {
+		struct phy_data *phy_data = phy_data_page + i;
+		u8 addr = phy_data->addr;
+		u8 data = phy_data->data;
+
+		if (!addr)
+			continue;
+
+		if (rtk_phy_write(phy_reg, addr, data)) {
+			dev_err(rtk_phy->dev,
+				"%s: Error to set page0 parameter addr=0x%x value=0x%x\n",
+				__func__, addr, data);
+			return -EINVAL;
+		}
+	}
+
+	/* Set page 1 */
+	phy_data_page = phy_cfg->page1;
+	rtk_phy_set_page(phy_reg, 1);
+
+	for (i = 0; i < phy_cfg->page1_size; i++) {
+		struct phy_data *phy_data = phy_data_page + i;
+		u8 addr = phy_data->addr;
+		u8 data = phy_data->data;
+
+		if (!addr)
+			continue;
+
+		if (rtk_phy_write(phy_reg, addr, data)) {
+			dev_err(rtk_phy->dev,
+				"%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+				__func__, addr, data);
+			return -EINVAL;
+		}
+	}
+
+	if (phy_cfg->page2_size == 0)
+		goto do_toggle;
+
+	/* Set page 2 */
+	phy_data_page = phy_cfg->page2;
+	rtk_phy_set_page(phy_reg, 2);
+
+	for (i = 0; i < phy_cfg->page2_size; i++) {
+		struct phy_data *phy_data = phy_data_page + i;
+		u8 addr = phy_data->addr;
+		u8 data = phy_data->data;
+
+		if (!addr)
+			continue;
+
+		if (rtk_phy_write(phy_reg, addr, data)) {
+			dev_err(rtk_phy->dev,
+				"%s: Error to set page2 parameter addr=0x%x value=0x%x\n",
+				__func__, addr, data);
+			return -EINVAL;
+		}
+	}
+
+do_toggle:
+	do_rtk_phy_toggle(rtk_phy, index, false);
+
+	return 0;
+}
+
+static int rtk_phy_init(struct phy *phy)
+{
+	struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+	unsigned long phy_init_time = jiffies;
+	int i, ret = 0;
+
+	if (!rtk_phy)
+		return -EINVAL;
+
+	for (i = 0; i < rtk_phy->num_phy; i++)
+		ret = do_rtk_phy_init(rtk_phy, i);
+
+	dev_dbg(rtk_phy->dev, "Initialized RTK USB 2.0 PHY (take %dms)\n",
+		jiffies_to_msecs(jiffies - phy_init_time));
+	return ret;
+}
+
+static int rtk_phy_exit(struct phy *phy)
+{
+	return 0;
+}
+
+static const struct phy_ops ops = {
+	.init		= rtk_phy_init,
+	.exit		= rtk_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static void rtk_phy_toggle(struct usb_phy *usb2_phy, bool connect, int port)
+{
+	int index = port;
+	struct rtk_phy *rtk_phy = NULL;
+
+	rtk_phy = dev_get_drvdata(usb2_phy->dev);
+
+	if (index > rtk_phy->num_phy) {
+		dev_err(rtk_phy->dev, "%s: The port=%d is not in usb phy (num_phy=%d)\n",
+			__func__, index, rtk_phy->num_phy);
+		return;
+	}
+
+	do_rtk_phy_toggle(rtk_phy, index, connect);
+}
+
+static int rtk_phy_notify_port_status(struct usb_phy *x, int port,
+				      u16 portstatus, u16 portchange)
+{
+	bool connect = false;
+
+	pr_debug("%s port=%d portstatus=0x%x portchange=0x%x\n",
+		 __func__, port, (int)portstatus, (int)portchange);
+	if (portstatus & USB_PORT_STAT_CONNECTION)
+		connect = true;
+
+	if (portchange & USB_PORT_STAT_C_CONNECTION)
+		rtk_phy_toggle(x, connect, port);
+
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *create_phy_debug_root(void)
+{
+	struct dentry *phy_debug_root;
+
+	phy_debug_root = debugfs_lookup("phy", usb_debug_root);
+	if (!phy_debug_root)
+		phy_debug_root = debugfs_create_dir("phy", usb_debug_root);
+
+	return phy_debug_root;
+}
+
+static int rtk_usb2_parameter_show(struct seq_file *s, void *unused)
+{
+	struct rtk_phy *rtk_phy = s->private;
+	struct phy_cfg *phy_cfg;
+	int i, index;
+
+	phy_cfg = rtk_phy->phy_cfg;
+
+	seq_puts(s, "Property:\n");
+	seq_printf(s, "  check_efuse: %s\n",
+		   phy_cfg->check_efuse ? "Enable" : "Disable");
+	seq_printf(s, "  check_efuse_version: %d\n",
+		   phy_cfg->check_efuse_version);
+	seq_printf(s, "  efuse_dc_driving_rate: %d\n",
+		   phy_cfg->efuse_dc_driving_rate);
+	seq_printf(s, "  dc_driving_mask: 0x%x\n",
+		   phy_cfg->dc_driving_mask);
+	seq_printf(s, "  efuse_dc_disconnect_rate: %d\n",
+		   phy_cfg->efuse_dc_disconnect_rate);
+	seq_printf(s, "  dc_disconnect_mask: 0x%x\n",
+		   phy_cfg->dc_disconnect_mask);
+	seq_printf(s, "  usb_dc_disconnect_at_page0: %s\n",
+		   phy_cfg->usb_dc_disconnect_at_page0 ? "true" : "false");
+	seq_printf(s, "  do_toggle: %s\n",
+		   phy_cfg->do_toggle ? "Enable" : "Disable");
+	seq_printf(s, "  do_toggle_driving: %s\n",
+		   phy_cfg->do_toggle_driving ? "Enable" : "Disable");
+	seq_printf(s, "  driving_updated_for_dev_dis: 0x%x\n",
+		   phy_cfg->driving_updated_for_dev_dis);
+	seq_printf(s, "  use_default_parameter: %s\n",
+		   phy_cfg->use_default_parameter ? "Enable" : "Disable");
+	seq_printf(s, "  is_double_sensitivity_mode: %s\n",
+		   phy_cfg->is_double_sensitivity_mode ? "Enable" : "Disable");
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		struct phy_parameter *phy_parameter;
+		struct phy_reg *phy_reg;
+		struct phy_data *phy_data_page;
+
+		phy_parameter =  &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+		phy_reg = &phy_parameter->phy_reg;
+
+		seq_printf(s, "PHY %d:\n", index);
+
+		seq_puts(s, "Page 0:\n");
+		/* Set page 0 */
+		phy_data_page = phy_cfg->page0;
+		rtk_phy_set_page(phy_reg, 0);
+
+		for (i = 0; i < phy_cfg->page0_size; i++) {
+			struct phy_data *phy_data = phy_data_page + i;
+			u8 addr = array_index_to_page_addr(i);
+			u8 data = phy_data->data;
+			u8 value = rtk_phy_read(phy_reg, addr);
+
+			if (phy_data->addr)
+				seq_printf(s, "  Page 0: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+					   addr, data, value);
+			else
+				seq_printf(s, "  Page 0: addr=0x%x data=none ==> read value=0x%02x\n",
+					   addr, value);
+		}
+
+		seq_puts(s, "Page 1:\n");
+		/* Set page 1 */
+		phy_data_page = phy_cfg->page1;
+		rtk_phy_set_page(phy_reg, 1);
+
+		for (i = 0; i < phy_cfg->page1_size; i++) {
+			struct phy_data *phy_data = phy_data_page + i;
+			u8 addr = array_index_to_page_addr(i);
+			u8 data = phy_data->data;
+			u8 value = rtk_phy_read(phy_reg, addr);
+
+			if (phy_data->addr)
+				seq_printf(s, "  Page 1: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+					   addr, data, value);
+			else
+				seq_printf(s, "  Page 1: addr=0x%x data=none ==> read value=0x%02x\n",
+					   addr, value);
+		}
+
+		if (phy_cfg->page2_size == 0)
+			goto out;
+
+		seq_puts(s, "Page 2:\n");
+		/* Set page 2 */
+		phy_data_page = phy_cfg->page2;
+		rtk_phy_set_page(phy_reg, 2);
+
+		for (i = 0; i < phy_cfg->page2_size; i++) {
+			struct phy_data *phy_data = phy_data_page + i;
+			u8 addr = array_index_to_page_addr(i);
+			u8 data = phy_data->data;
+			u8 value = rtk_phy_read(phy_reg, addr);
+
+			if (phy_data->addr)
+				seq_printf(s, "  Page 2: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+					   addr, data, value);
+			else
+				seq_printf(s, "  Page 2: addr=0x%x data=none ==> read value=0x%02x\n",
+					   addr, value);
+		}
+
+out:
+		seq_puts(s, "PHY Property:\n");
+		seq_printf(s, "  efuse_usb_dc_cal: %d\n",
+			   (int)phy_parameter->efuse_usb_dc_cal);
+		seq_printf(s, "  efuse_usb_dc_dis: %d\n",
+			   (int)phy_parameter->efuse_usb_dc_dis);
+		seq_printf(s, "  inverse_hstx_sync_clock: %s\n",
+			   phy_parameter->inverse_hstx_sync_clock ? "Enable" : "Disable");
+		seq_printf(s, "  driving_level: %d\n",
+			   phy_parameter->driving_level);
+		seq_printf(s, "  driving_level_compensate: %d\n",
+			   phy_parameter->driving_level_compensate);
+		seq_printf(s, "  disconnection_compensate: %d\n",
+			   phy_parameter->disconnection_compensate);
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(rtk_usb2_parameter);
+
+static inline void create_debug_files(struct rtk_phy *rtk_phy)
+{
+	struct dentry *phy_debug_root = NULL;
+
+	phy_debug_root = create_phy_debug_root();
+	if (!phy_debug_root)
+		return;
+
+	rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy->dev),
+						phy_debug_root);
+	if (!rtk_phy->debug_dir)
+		return;
+
+	if (!debugfs_create_file("parameter", 0444, rtk_phy->debug_dir, rtk_phy,
+				 &rtk_usb2_parameter_fops))
+		goto file_error;
+
+	return;
+
+file_error:
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+
+static inline void remove_debug_files(struct rtk_phy *rtk_phy)
+{
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+#else
+static inline void create_debug_files(struct rtk_phy *rtk_phy) { }
+static inline void remove_debug_files(struct rtk_phy *rtk_phy) { }
+#endif /* CONFIG_DEBUG_FS */
+
+static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy,
+				 struct phy_parameter *phy_parameter, int index)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+	u8 value = 0;
+	struct nvmem_cell *cell;
+	struct soc_device_attribute rtk_soc_groot[] = {
+		    { .family = "Realtek Groot",},
+		    { /* empty */ } };
+
+	if (!phy_cfg->check_efuse)
+		goto out;
+
+	/* Read efuse for usb dc cal */
+	cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-cal");
+	if (IS_ERR(cell)) {
+		dev_dbg(rtk_phy->dev, "%s no usb-dc-cal: %ld\n",
+			__func__, PTR_ERR(cell));
+	} else {
+		unsigned char *buf;
+		size_t buf_size;
+
+		buf = nvmem_cell_read(cell, &buf_size);
+		if (!IS_ERR(buf)) {
+			value = buf[0] & phy_cfg->dc_driving_mask;
+			kfree(buf);
+		}
+		nvmem_cell_put(cell);
+	}
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		int rate = phy_cfg->efuse_dc_driving_rate;
+
+		if (value <= EFUS_USB_DC_CAL_MAX)
+			phy_parameter->efuse_usb_dc_cal = (int8_t)(value * rate);
+		else
+			phy_parameter->efuse_usb_dc_cal = -(int8_t)
+				    ((EFUS_USB_DC_CAL_MAX & value) * rate);
+
+		if (soc_device_match(rtk_soc_groot)) {
+			dev_dbg(rtk_phy->dev, "For groot IC we need a workaround to adjust efuse_usb_dc_cal\n");
+
+			/* We don't multiple dc_cal_rate=2 for positive dc cal compensate */
+			if (value <= EFUS_USB_DC_CAL_MAX)
+				phy_parameter->efuse_usb_dc_cal = (int8_t)(value);
+
+			/* We set max dc cal compensate is 0x8 if otp is 0x7 */
+			if (value == 0x7)
+				phy_parameter->efuse_usb_dc_cal = (int8_t)(value + 1);
+		}
+	} else { /* for CHECK_EFUSE_V2 */
+		phy_parameter->efuse_usb_dc_cal = value & phy_cfg->dc_driving_mask;
+	}
+
+	/* Read efuse for usb dc disconnect level */
+	value = 0;
+	cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-dis");
+	if (IS_ERR(cell)) {
+		dev_dbg(rtk_phy->dev, "%s no usb-dc-dis: %ld\n",
+			__func__, PTR_ERR(cell));
+	} else {
+		unsigned char *buf;
+		size_t buf_size;
+
+		buf = nvmem_cell_read(cell, &buf_size);
+		if (!IS_ERR(buf)) {
+			value = buf[0] & phy_cfg->dc_disconnect_mask;
+			kfree(buf);
+		}
+		nvmem_cell_put(cell);
+	}
+
+	if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+		int rate = phy_cfg->efuse_dc_disconnect_rate;
+
+		if (value <= EFUS_USB_DC_DIS_MAX)
+			phy_parameter->efuse_usb_dc_dis = (int8_t)(value * rate);
+		else
+			phy_parameter->efuse_usb_dc_dis = -(int8_t)
+				    ((EFUS_USB_DC_DIS_MAX & value) * rate);
+	} else { /* for CHECK_EFUSE_V2 */
+		phy_parameter->efuse_usb_dc_dis = value & phy_cfg->dc_disconnect_mask;
+	}
+
+out:
+	return 0;
+}
+
+static int parse_phy_data(struct rtk_phy *rtk_phy)
+{
+	struct device *dev = rtk_phy->dev;
+	struct device_node *np = dev->of_node;
+	struct phy_parameter *phy_parameter;
+	int ret = 0;
+	int index;
+
+	rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) *
+						rtk_phy->num_phy, GFP_KERNEL);
+	if (!rtk_phy->phy_parameter)
+		return -ENOMEM;
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+
+		phy_parameter->phy_reg.reg_wrap_vstatus = of_iomap(np, 0);
+		phy_parameter->phy_reg.reg_gusb2phyacc0 = of_iomap(np, 1) + index;
+		phy_parameter->phy_reg.vstatus_index = index;
+
+		if (of_property_read_bool(np, "realtek,inverse-hstx-sync-clock"))
+			phy_parameter->inverse_hstx_sync_clock = true;
+		else
+			phy_parameter->inverse_hstx_sync_clock = false;
+
+		if (of_property_read_u32_index(np, "realtek,driving-level",
+					       index, &phy_parameter->driving_level))
+			phy_parameter->driving_level = DEFAULT_DC_DRIVING_VALUE;
+
+		if (of_property_read_u32_index(np, "realtek,driving-level-compensate",
+					       index, &phy_parameter->driving_level_compensate))
+			phy_parameter->driving_level_compensate = 0;
+
+		if (of_property_read_u32_index(np, "realtek,disconnection-compensate",
+					       index, &phy_parameter->disconnection_compensate))
+			phy_parameter->disconnection_compensate = 0;
+
+		get_phy_data_by_efuse(rtk_phy, phy_parameter, index);
+
+		update_dc_driving_level(rtk_phy, phy_parameter);
+
+		update_hs_clk_select(rtk_phy, phy_parameter);
+	}
+
+	return ret;
+}
+
+static int rtk_usb2phy_probe(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy;
+	struct device *dev = &pdev->dev;
+	struct phy *generic_phy;
+	struct phy_provider *phy_provider;
+	const struct phy_cfg *phy_cfg;
+	int ret = 0;
+
+	phy_cfg = of_device_get_match_data(dev);
+	if (!phy_cfg) {
+		dev_err(dev, "phy config are not assigned!\n");
+		return -EINVAL;
+	}
+
+	rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
+	if (!rtk_phy)
+		return -ENOMEM;
+
+	rtk_phy->dev			= &pdev->dev;
+	rtk_phy->phy.dev		= rtk_phy->dev;
+	rtk_phy->phy.label		= "rtk-usb2phy";
+	rtk_phy->phy.notify_port_status = rtk_phy_notify_port_status;
+
+	rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
+
+	memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
+
+	rtk_phy->num_phy = phy_cfg->num_phy;
+
+	ret = parse_phy_data(rtk_phy);
+	if (ret)
+		goto err;
+
+	platform_set_drvdata(pdev, rtk_phy);
+
+	generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops);
+	if (IS_ERR(generic_phy))
+		return PTR_ERR(generic_phy);
+
+	phy_set_drvdata(generic_phy, rtk_phy);
+
+	phy_provider = devm_of_phy_provider_register(rtk_phy->dev,
+						     of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	ret = usb_add_phy_dev(&rtk_phy->phy);
+	if (ret)
+		goto err;
+
+	create_debug_files(rtk_phy);
+
+err:
+	return ret;
+}
+
+static void rtk_usb2phy_remove(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy = platform_get_drvdata(pdev);
+
+	remove_debug_files(rtk_phy);
+
+	usb_remove_phy(&rtk_phy->phy);
+}
+
+static const struct phy_cfg rtd1295_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0x90},
+		   [3] = {0xe3, 0x3a},
+		   [4] = {0xe4, 0x68},
+		   [6] = {0xe6, 0x91},
+		  [13] = {0xf5, 0x81},
+		  [15] = {0xf7, 0x02}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 1,
+	.check_efuse = false,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1395_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [4] = {0xe4, 0xac},
+		  [13] = {0xf5, 0x00},
+		  [15] = {0xf7, 0x02}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 1,
+	.check_efuse = false,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1395_phy_cfg_2port = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [4] = {0xe4, 0xac},
+		  [13] = {0xf5, 0x00},
+		  [15] = {0xf7, 0x02}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 2,
+	.check_efuse = false,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1619_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [4] = {0xe4, 0x68}, },
+	.page1_size = 8,
+	.page1 = { /* default parameter */ },
+	.page2_size = 0,
+	.page2 = { /* no parameter */ },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1319_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0x18},
+		   [4] = {0xe4, 0x6a},
+		   [7] = {0xe7, 0x71},
+		  [13] = {0xf5, 0x15},
+		  [15] = {0xf7, 0x32}, },
+	.page1_size = 8,
+	.page1 = { [3] = {0xe3, 0x44}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [0] = {0xe0, 0x01}, },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = true,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1312c_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0x14},
+		   [4] = {0xe4, 0x67},
+		   [5] = {0xe5, 0x55}, },
+	.page1_size = 8,
+	.page1 = { [3] = {0xe3, 0x23},
+		   [6] = {0xe6, 0x58}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { /* default parameter */ },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = 1,
+	.dc_driving_mask = 0xf,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = true,
+	.do_toggle = true,
+	.do_toggle_driving = true,
+	.driving_updated_for_dev_dis = 0xf,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1619b_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0xa3},
+		   [4] = {0xe4, 0x88},
+		   [5] = {0xe5, 0x4f},
+		   [6] = {0xe6, 0x02}, },
+	.page1_size = 8,
+	.page1 = { [3] = {0xe3, 0x64}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [7] = {0xe7, 0x45}, },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+	.dc_driving_mask = 0x1f,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = false,
+	.do_toggle = true,
+	.do_toggle_driving = true,
+	.driving_updated_for_dev_dis = 0x8,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1319d_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0xa3},
+		   [4] = {0xe4, 0x8e},
+		   [5] = {0xe5, 0x4f},
+		   [6] = {0xe6, 0x02}, },
+	.page1_size = MAX_USB_PHY_PAGE1_DATA_SIZE,
+	.page1 = { [14] = {0xf5, 0x1}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [7] = {0xe7, 0x44}, },
+	.check_efuse = true,
+	.num_phy = 1,
+	.check_efuse_version = CHECK_EFUSE_V1,
+	.efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+	.dc_driving_mask = 0x1f,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = false,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0x8,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1315e_phy_cfg = {
+	.page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+	.page0 = { [0] = {0xe0, 0xa3},
+		   [4] = {0xe4, 0x8c},
+		   [5] = {0xe5, 0x4f},
+		   [6] = {0xe6, 0x02}, },
+	.page1_size = MAX_USB_PHY_PAGE1_DATA_SIZE,
+	.page1 = { [3] = {0xe3, 0x7f},
+		  [14] = {0xf5, 0x01}, },
+	.page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+	.page2 = { [7] = {0xe7, 0x44}, },
+	.num_phy = 1,
+	.check_efuse = true,
+	.check_efuse_version = CHECK_EFUSE_V2,
+	.efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+	.dc_driving_mask = 0x1f,
+	.efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+	.dc_disconnect_mask = 0xf,
+	.usb_dc_disconnect_at_page0 = false,
+	.do_toggle = true,
+	.do_toggle_driving = false,
+	.driving_updated_for_dev_dis = 0x8,
+	.use_default_parameter = false,
+	.is_double_sensitivity_mode = true,
+};
+
+static const struct of_device_id usbphy_rtk_dt_match[] = {
+	{ .compatible = "realtek,rtd1295-usb2phy", .data = &rtd1295_phy_cfg },
+	{ .compatible = "realtek,rtd1312c-usb2phy", .data = &rtd1312c_phy_cfg },
+	{ .compatible = "realtek,rtd1315e-usb2phy", .data = &rtd1315e_phy_cfg },
+	{ .compatible = "realtek,rtd1319-usb2phy", .data = &rtd1319_phy_cfg },
+	{ .compatible = "realtek,rtd1319d-usb2phy", .data = &rtd1319d_phy_cfg },
+	{ .compatible = "realtek,rtd1395-usb2phy", .data = &rtd1395_phy_cfg },
+	{ .compatible = "realtek,rtd1395-usb2phy-2port", .data = &rtd1395_phy_cfg_2port },
+	{ .compatible = "realtek,rtd1619-usb2phy", .data = &rtd1619_phy_cfg },
+	{ .compatible = "realtek,rtd1619b-usb2phy", .data = &rtd1619b_phy_cfg },
+	{},
+};
+MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
+
+static struct platform_driver rtk_usb2phy_driver = {
+	.probe		= rtk_usb2phy_probe,
+	.remove_new	= rtk_usb2phy_remove,
+	.driver		= {
+		.name	= "rtk-usb2phy",
+		.of_match_table = usbphy_rtk_dt_match,
+	},
+};
+
+module_platform_driver(rtk_usb2phy_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform: rtk-usb2phy");
+MODULE_AUTHOR("Stanley Chang <stanley_chang@realtek.com>");
+MODULE_DESCRIPTION("Realtek usb 2.0 phy driver");
diff --git a/drivers/phy/realtek/phy-rtk-usb3.c b/drivers/phy/realtek/phy-rtk-usb3.c
new file mode 100644
index 000000000000..7881f908aade
--- /dev/null
+++ b/drivers/phy/realtek/phy-rtk-usb3.c
@@ -0,0 +1,767 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  phy-rtk-usb3.c RTK usb3.0 phy driver
+ *
+ * copyright (c) 2023 realtek semiconductor corporation
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/regmap.h>
+#include <linux/sys_soc.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/phy.h>
+
+#define USB_MDIO_CTRL_PHY_BUSY BIT(7)
+#define USB_MDIO_CTRL_PHY_WRITE BIT(0)
+#define USB_MDIO_CTRL_PHY_ADDR_SHIFT 8
+#define USB_MDIO_CTRL_PHY_DATA_SHIFT 16
+
+#define MAX_USB_PHY_DATA_SIZE 0x30
+#define PHY_ADDR_0X09 0x09
+#define PHY_ADDR_0X0B 0x0b
+#define PHY_ADDR_0X0D 0x0d
+#define PHY_ADDR_0X10 0x10
+#define PHY_ADDR_0X1F 0x1f
+#define PHY_ADDR_0X20 0x20
+#define PHY_ADDR_0X21 0x21
+#define PHY_ADDR_0X30 0x30
+
+#define REG_0X09_FORCE_CALIBRATION BIT(9)
+#define REG_0X0B_RX_OFFSET_RANGE_MASK 0xc
+#define REG_0X0D_RX_DEBUG_TEST_EN BIT(6)
+#define REG_0X10_DEBUG_MODE_SETTING 0x3c0
+#define REG_0X10_DEBUG_MODE_SETTING_MASK 0x3f8
+#define REG_0X1F_RX_OFFSET_CODE_MASK 0x1e
+
+#define USB_U3_TX_LFPS_SWING_TRIM_SHIFT 4
+#define USB_U3_TX_LFPS_SWING_TRIM_MASK 0xf
+#define AMPLITUDE_CONTROL_COARSE_MASK 0xff
+#define AMPLITUDE_CONTROL_FINE_MASK 0xffff
+#define AMPLITUDE_CONTROL_COARSE_DEFAULT 0xff
+#define AMPLITUDE_CONTROL_FINE_DEFAULT 0xffff
+
+#define PHY_ADDR_MAP_ARRAY_INDEX(addr) (addr)
+#define ARRAY_INDEX_MAP_PHY_ADDR(index) (index)
+
+struct phy_reg {
+	void __iomem *reg_mdio_ctl;
+};
+
+struct phy_data {
+	u8 addr;
+	u16 data;
+};
+
+struct phy_cfg {
+	int param_size;
+	struct phy_data param[MAX_USB_PHY_DATA_SIZE];
+
+	bool check_efuse;
+	bool do_toggle;
+	bool do_toggle_once;
+	bool use_default_parameter;
+	bool check_rx_front_end_offset;
+};
+
+struct phy_parameter {
+	struct phy_reg phy_reg;
+
+	/* Get from efuse */
+	u8 efuse_usb_u3_tx_lfps_swing_trim;
+
+	/* Get from dts */
+	u32 amplitude_control_coarse;
+	u32 amplitude_control_fine;
+};
+
+struct rtk_phy {
+	struct usb_phy phy;
+	struct device *dev;
+
+	struct phy_cfg *phy_cfg;
+	int num_phy;
+	struct phy_parameter *phy_parameter;
+
+	struct dentry *debug_dir;
+};
+
+#define PHY_IO_TIMEOUT_USEC		(50000)
+#define PHY_IO_DELAY_US			(100)
+
+static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result)
+{
+	int ret;
+	unsigned int val;
+
+	ret = read_poll_timeout(readl, val, ((val & mask) == result),
+				PHY_IO_DELAY_US, PHY_IO_TIMEOUT_USEC, false, reg);
+	if (ret) {
+		pr_err("%s can't program USB phy\n", __func__);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int rtk_phy3_wait_vbusy(struct phy_reg *phy_reg)
+{
+	return utmi_wait_register(phy_reg->reg_mdio_ctl, USB_MDIO_CTRL_PHY_BUSY, 0);
+}
+
+static u16 rtk_phy_read(struct phy_reg *phy_reg, char addr)
+{
+	unsigned int tmp;
+	u32 value;
+
+	tmp = (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT);
+
+	writel(tmp, phy_reg->reg_mdio_ctl);
+
+	rtk_phy3_wait_vbusy(phy_reg);
+
+	value = readl(phy_reg->reg_mdio_ctl);
+	value = value >> USB_MDIO_CTRL_PHY_DATA_SHIFT;
+
+	return (u16)value;
+}
+
+static int rtk_phy_write(struct phy_reg *phy_reg, char addr, u16 data)
+{
+	unsigned int val;
+
+	val = USB_MDIO_CTRL_PHY_WRITE |
+		    (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT) |
+		    (data << USB_MDIO_CTRL_PHY_DATA_SHIFT);
+
+	writel(val, phy_reg->reg_mdio_ctl);
+
+	rtk_phy3_wait_vbusy(phy_reg);
+
+	return 0;
+}
+
+static void do_rtk_usb3_phy_toggle(struct rtk_phy *rtk_phy, int index, bool connect)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_parameter *phy_parameter;
+	struct phy_data *phy_data;
+	u8 addr;
+	u16 data;
+	int i;
+
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (!phy_cfg->do_toggle)
+		return;
+
+	i = PHY_ADDR_MAP_ARRAY_INDEX(PHY_ADDR_0X09);
+	phy_data = phy_cfg->param + i;
+	addr = phy_data->addr;
+	data = phy_data->data;
+
+	if (!addr && !data) {
+		addr = PHY_ADDR_0X09;
+		data = rtk_phy_read(phy_reg, addr);
+		phy_data->addr = addr;
+		phy_data->data = data;
+	}
+
+	rtk_phy_write(phy_reg, addr, data & (~REG_0X09_FORCE_CALIBRATION));
+	mdelay(1);
+	rtk_phy_write(phy_reg, addr, data | REG_0X09_FORCE_CALIBRATION);
+}
+
+static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+	struct phy_parameter *phy_parameter;
+	int i = 0;
+
+	phy_cfg = rtk_phy->phy_cfg;
+	phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+	phy_reg = &phy_parameter->phy_reg;
+
+	if (phy_cfg->use_default_parameter)
+		goto do_toggle;
+
+	for (i = 0; i < phy_cfg->param_size; i++) {
+		struct phy_data *phy_data = phy_cfg->param + i;
+		u8 addr = phy_data->addr;
+		u16 data = phy_data->data;
+
+		if (!addr && !data)
+			continue;
+
+		rtk_phy_write(phy_reg, addr, data);
+	}
+
+do_toggle:
+	if (phy_cfg->do_toggle_once)
+		phy_cfg->do_toggle = true;
+
+	do_rtk_usb3_phy_toggle(rtk_phy, index, false);
+
+	if (phy_cfg->do_toggle_once) {
+		u16 check_value = 0;
+		int count = 10;
+		u16 value_0x0d, value_0x10;
+
+		/* Enable Debug mode by set 0x0D and 0x10 */
+		value_0x0d = rtk_phy_read(phy_reg, PHY_ADDR_0X0D);
+		value_0x10 = rtk_phy_read(phy_reg, PHY_ADDR_0X10);
+
+		rtk_phy_write(phy_reg, PHY_ADDR_0X0D,
+			      value_0x0d | REG_0X0D_RX_DEBUG_TEST_EN);
+		rtk_phy_write(phy_reg, PHY_ADDR_0X10,
+			      (value_0x10 & ~REG_0X10_DEBUG_MODE_SETTING_MASK) |
+			      REG_0X10_DEBUG_MODE_SETTING);
+
+		check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30);
+
+		while (!(check_value & BIT(15))) {
+			check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30);
+			mdelay(1);
+			if (count-- < 0)
+				break;
+		}
+
+		if (!(check_value & BIT(15)))
+			dev_info(rtk_phy->dev, "toggle fail addr=0x%02x, data=0x%04x\n",
+				 PHY_ADDR_0X30, check_value);
+
+		/* Disable Debug mode by set 0x0D and 0x10 to default*/
+		rtk_phy_write(phy_reg, PHY_ADDR_0X0D, value_0x0d);
+		rtk_phy_write(phy_reg, PHY_ADDR_0X10, value_0x10);
+
+		phy_cfg->do_toggle = false;
+	}
+
+	if (phy_cfg->check_rx_front_end_offset) {
+		u16 rx_offset_code, rx_offset_range;
+		u16 code_mask = REG_0X1F_RX_OFFSET_CODE_MASK;
+		u16 range_mask = REG_0X0B_RX_OFFSET_RANGE_MASK;
+		bool do_update = false;
+
+		rx_offset_code = rtk_phy_read(phy_reg, PHY_ADDR_0X1F);
+		if (((rx_offset_code & code_mask) == 0x0) ||
+		    ((rx_offset_code & code_mask) == code_mask))
+			do_update = true;
+
+		rx_offset_range = rtk_phy_read(phy_reg, PHY_ADDR_0X0B);
+		if (((rx_offset_range & range_mask) == range_mask) && do_update) {
+			dev_warn(rtk_phy->dev, "Don't update rx_offset_range (rx_offset_code=0x%x, rx_offset_range=0x%x)\n",
+				 rx_offset_code, rx_offset_range);
+			do_update = false;
+		}
+
+		if (do_update) {
+			u16 tmp1, tmp2;
+
+			tmp1 = rx_offset_range & (~range_mask);
+			tmp2 = rx_offset_range & range_mask;
+			tmp2 += (1 << 2);
+			rx_offset_range = tmp1 | (tmp2 & range_mask);
+			rtk_phy_write(phy_reg, PHY_ADDR_0X0B, rx_offset_range);
+			goto do_toggle;
+		}
+	}
+
+	return 0;
+}
+
+static int rtk_phy_init(struct phy *phy)
+{
+	struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+	int ret = 0;
+	int i;
+	unsigned long phy_init_time = jiffies;
+
+	for (i = 0; i < rtk_phy->num_phy; i++)
+		ret = do_rtk_phy_init(rtk_phy, i);
+
+	dev_dbg(rtk_phy->dev, "Initialized RTK USB 3.0 PHY (take %dms)\n",
+		jiffies_to_msecs(jiffies - phy_init_time));
+
+	return ret;
+}
+
+static int rtk_phy_exit(struct phy *phy)
+{
+	return 0;
+}
+
+static const struct phy_ops ops = {
+	.init		= rtk_phy_init,
+	.exit		= rtk_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static void rtk_phy_toggle(struct usb_phy *usb3_phy, bool connect, int port)
+{
+	int index = port;
+	struct rtk_phy *rtk_phy = NULL;
+
+	rtk_phy = dev_get_drvdata(usb3_phy->dev);
+
+	if (index > rtk_phy->num_phy) {
+		dev_err(rtk_phy->dev, "%s: The port=%d is not in usb phy (num_phy=%d)\n",
+			__func__, index, rtk_phy->num_phy);
+		return;
+	}
+
+	do_rtk_usb3_phy_toggle(rtk_phy, index, connect);
+}
+
+static int rtk_phy_notify_port_status(struct usb_phy *x, int port,
+				      u16 portstatus, u16 portchange)
+{
+	bool connect = false;
+
+	pr_debug("%s port=%d portstatus=0x%x portchange=0x%x\n",
+		 __func__, port, (int)portstatus, (int)portchange);
+	if (portstatus & USB_PORT_STAT_CONNECTION)
+		connect = true;
+
+	if (portchange & USB_PORT_STAT_C_CONNECTION)
+		rtk_phy_toggle(x, connect, port);
+
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *create_phy_debug_root(void)
+{
+	struct dentry *phy_debug_root;
+
+	phy_debug_root = debugfs_lookup("phy", usb_debug_root);
+	if (!phy_debug_root)
+		phy_debug_root = debugfs_create_dir("phy", usb_debug_root);
+
+	return phy_debug_root;
+}
+
+static int rtk_usb3_parameter_show(struct seq_file *s, void *unused)
+{
+	struct rtk_phy *rtk_phy = s->private;
+	struct phy_cfg *phy_cfg;
+	int i, index;
+
+	phy_cfg = rtk_phy->phy_cfg;
+
+	seq_puts(s, "Property:\n");
+	seq_printf(s, "  check_efuse: %s\n",
+		   phy_cfg->check_efuse ? "Enable" : "Disable");
+	seq_printf(s, "  do_toggle: %s\n",
+		   phy_cfg->do_toggle ? "Enable" : "Disable");
+	seq_printf(s, "  do_toggle_once: %s\n",
+		   phy_cfg->do_toggle_once ? "Enable" : "Disable");
+	seq_printf(s, "  use_default_parameter: %s\n",
+		   phy_cfg->use_default_parameter ? "Enable" : "Disable");
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		struct phy_reg *phy_reg;
+		struct phy_parameter *phy_parameter;
+
+		phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+		phy_reg = &phy_parameter->phy_reg;
+
+		seq_printf(s, "PHY %d:\n", index);
+
+		for (i = 0; i < phy_cfg->param_size; i++) {
+			struct phy_data *phy_data = phy_cfg->param + i;
+			u8 addr = ARRAY_INDEX_MAP_PHY_ADDR(i);
+			u16 data = phy_data->data;
+
+			if (!phy_data->addr && !data)
+				seq_printf(s, "  addr = 0x%02x, data = none   ==> read value = 0x%04x\n",
+					   addr, rtk_phy_read(phy_reg, addr));
+			else
+				seq_printf(s, "  addr = 0x%02x, data = 0x%04x ==> read value = 0x%04x\n",
+					   addr, data, rtk_phy_read(phy_reg, addr));
+		}
+
+		seq_puts(s, "PHY Property:\n");
+		seq_printf(s, "  efuse_usb_u3_tx_lfps_swing_trim: 0x%x\n",
+			   (int)phy_parameter->efuse_usb_u3_tx_lfps_swing_trim);
+		seq_printf(s, "  amplitude_control_coarse: 0x%x\n",
+			   (int)phy_parameter->amplitude_control_coarse);
+		seq_printf(s, "  amplitude_control_fine: 0x%x\n",
+			   (int)phy_parameter->amplitude_control_fine);
+	}
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(rtk_usb3_parameter);
+
+static inline void create_debug_files(struct rtk_phy *rtk_phy)
+{
+	struct dentry *phy_debug_root = NULL;
+
+	phy_debug_root = create_phy_debug_root();
+
+	if (!phy_debug_root)
+		return;
+
+	rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy->dev), phy_debug_root);
+	if (!rtk_phy->debug_dir)
+		return;
+
+	if (!debugfs_create_file("parameter", 0444, rtk_phy->debug_dir, rtk_phy,
+				 &rtk_usb3_parameter_fops))
+		goto file_error;
+
+	return;
+
+file_error:
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+
+static inline void remove_debug_files(struct rtk_phy *rtk_phy)
+{
+	debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+#else
+static inline void create_debug_files(struct rtk_phy *rtk_phy) { }
+static inline void remove_debug_files(struct rtk_phy *rtk_phy) { }
+#endif /* CONFIG_DEBUG_FS */
+
+static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy,
+				 struct phy_parameter *phy_parameter, int index)
+{
+	struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+	u8 value = 0;
+	struct nvmem_cell *cell;
+
+	if (!phy_cfg->check_efuse)
+		goto out;
+
+	cell = nvmem_cell_get(rtk_phy->dev, "usb_u3_tx_lfps_swing_trim");
+	if (IS_ERR(cell)) {
+		dev_dbg(rtk_phy->dev, "%s no usb_u3_tx_lfps_swing_trim: %ld\n",
+			__func__, PTR_ERR(cell));
+	} else {
+		unsigned char *buf;
+		size_t buf_size;
+
+		buf = nvmem_cell_read(cell, &buf_size);
+		if (!IS_ERR(buf)) {
+			value = buf[0] & USB_U3_TX_LFPS_SWING_TRIM_MASK;
+			kfree(buf);
+		}
+		nvmem_cell_put(cell);
+	}
+
+	if (value > 0 && value < 0x8)
+		phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = 0x8;
+	else
+		phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = (u8)value;
+
+out:
+	return 0;
+}
+
+static void update_amplitude_control_value(struct rtk_phy *rtk_phy,
+					   struct phy_parameter *phy_parameter)
+{
+	struct phy_cfg *phy_cfg;
+	struct phy_reg *phy_reg;
+
+	phy_reg = &phy_parameter->phy_reg;
+	phy_cfg = rtk_phy->phy_cfg;
+
+	if (phy_parameter->amplitude_control_coarse != AMPLITUDE_CONTROL_COARSE_DEFAULT) {
+		u16 val_mask = AMPLITUDE_CONTROL_COARSE_MASK;
+		u16 data;
+
+		if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) {
+			phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20;
+			data = rtk_phy_read(phy_reg, PHY_ADDR_0X20);
+		} else {
+			data = phy_cfg->param[PHY_ADDR_0X20].data;
+		}
+
+		data &= (~val_mask);
+		data |= (phy_parameter->amplitude_control_coarse & val_mask);
+
+		phy_cfg->param[PHY_ADDR_0X20].data = data;
+	}
+
+	if (phy_parameter->efuse_usb_u3_tx_lfps_swing_trim) {
+		u8 efuse_val = phy_parameter->efuse_usb_u3_tx_lfps_swing_trim;
+		u16 val_mask = USB_U3_TX_LFPS_SWING_TRIM_MASK;
+		int val_shift = USB_U3_TX_LFPS_SWING_TRIM_SHIFT;
+		u16 data;
+
+		if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) {
+			phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20;
+			data = rtk_phy_read(phy_reg, PHY_ADDR_0X20);
+		} else {
+			data = phy_cfg->param[PHY_ADDR_0X20].data;
+		}
+
+		data &= ~(val_mask << val_shift);
+		data |= ((efuse_val & val_mask) << val_shift);
+
+		phy_cfg->param[PHY_ADDR_0X20].data = data;
+	}
+
+	if (phy_parameter->amplitude_control_fine != AMPLITUDE_CONTROL_FINE_DEFAULT) {
+		u16 val_mask = AMPLITUDE_CONTROL_FINE_MASK;
+
+		if (!phy_cfg->param[PHY_ADDR_0X21].addr && !phy_cfg->param[PHY_ADDR_0X21].data)
+			phy_cfg->param[PHY_ADDR_0X21].addr = PHY_ADDR_0X21;
+
+		phy_cfg->param[PHY_ADDR_0X21].data =
+			    phy_parameter->amplitude_control_fine & val_mask;
+	}
+}
+
+static int parse_phy_data(struct rtk_phy *rtk_phy)
+{
+	struct device *dev = rtk_phy->dev;
+	struct phy_parameter *phy_parameter;
+	int ret = 0;
+	int index;
+
+	rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) *
+					      rtk_phy->num_phy, GFP_KERNEL);
+	if (!rtk_phy->phy_parameter)
+		return -ENOMEM;
+
+	for (index = 0; index < rtk_phy->num_phy; index++) {
+		phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+
+		phy_parameter->phy_reg.reg_mdio_ctl = of_iomap(dev->of_node, 0) + index;
+
+		/* Amplitude control address 0x20 bit 0 to bit 7 */
+		if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-coarse-tuning",
+					 &phy_parameter->amplitude_control_coarse))
+			phy_parameter->amplitude_control_coarse = AMPLITUDE_CONTROL_COARSE_DEFAULT;
+
+		/* Amplitude control address 0x21 bit 0 to bit 16 */
+		if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-fine-tuning",
+					 &phy_parameter->amplitude_control_fine))
+			phy_parameter->amplitude_control_fine = AMPLITUDE_CONTROL_FINE_DEFAULT;
+
+		get_phy_data_by_efuse(rtk_phy, phy_parameter, index);
+
+		update_amplitude_control_value(rtk_phy, phy_parameter);
+	}
+
+	return ret;
+}
+
+static int rtk_usb3phy_probe(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy;
+	struct device *dev = &pdev->dev;
+	struct phy *generic_phy;
+	struct phy_provider *phy_provider;
+	const struct phy_cfg *phy_cfg;
+	int ret;
+
+	phy_cfg = of_device_get_match_data(dev);
+	if (!phy_cfg) {
+		dev_err(dev, "phy config are not assigned!\n");
+		return -EINVAL;
+	}
+
+	rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
+	if (!rtk_phy)
+		return -ENOMEM;
+
+	rtk_phy->dev			= &pdev->dev;
+	rtk_phy->phy.dev		= rtk_phy->dev;
+	rtk_phy->phy.label		= "rtk-usb3phy";
+	rtk_phy->phy.notify_port_status = rtk_phy_notify_port_status;
+
+	rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
+
+	memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
+
+	rtk_phy->num_phy = 1;
+
+	ret = parse_phy_data(rtk_phy);
+	if (ret)
+		goto err;
+
+	platform_set_drvdata(pdev, rtk_phy);
+
+	generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops);
+	if (IS_ERR(generic_phy))
+		return PTR_ERR(generic_phy);
+
+	phy_set_drvdata(generic_phy, rtk_phy);
+
+	phy_provider = devm_of_phy_provider_register(rtk_phy->dev, of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	ret = usb_add_phy_dev(&rtk_phy->phy);
+	if (ret)
+		goto err;
+
+	create_debug_files(rtk_phy);
+
+err:
+	return ret;
+}
+
+static void rtk_usb3phy_remove(struct platform_device *pdev)
+{
+	struct rtk_phy *rtk_phy = platform_get_drvdata(pdev);
+
+	remove_debug_files(rtk_phy);
+
+	usb_remove_phy(&rtk_phy->phy);
+}
+
+static const struct phy_cfg rtd1295_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [0] = {0x01, 0x4008},  [1] = {0x01, 0xe046},
+		    [2] = {0x02, 0x6046},  [3] = {0x03, 0x2779},
+		    [4] = {0x04, 0x72f5},  [5] = {0x05, 0x2ad3},
+		    [6] = {0x06, 0x000e},  [7] = {0x07, 0x2e00},
+		    [8] = {0x08, 0x3591},  [9] = {0x09, 0x525c},
+		   [10] = {0x0a, 0xa600}, [11] = {0x0b, 0xa904},
+		   [12] = {0x0c, 0xc000}, [13] = {0x0d, 0xef1c},
+		   [14] = {0x0e, 0x2000}, [15] = {0x0f, 0x0000},
+		   [16] = {0x10, 0x000c}, [17] = {0x11, 0x4c00},
+		   [18] = {0x12, 0xfc00}, [19] = {0x13, 0x0c81},
+		   [20] = {0x14, 0xde01}, [21] = {0x15, 0x0000},
+		   [22] = {0x16, 0x0000}, [23] = {0x17, 0x0000},
+		   [24] = {0x18, 0x0000}, [25] = {0x19, 0x4004},
+		   [26] = {0x1a, 0x1260}, [27] = {0x1b, 0xff00},
+		   [28] = {0x1c, 0xcb00}, [29] = {0x1d, 0xa03f},
+		   [30] = {0x1e, 0xc2e0}, [31] = {0x1f, 0x2807},
+		   [32] = {0x20, 0x947a}, [33] = {0x21, 0x88aa},
+		   [34] = {0x22, 0x0057}, [35] = {0x23, 0xab66},
+		   [36] = {0x24, 0x0800}, [37] = {0x25, 0x0000},
+		   [38] = {0x26, 0x040a}, [39] = {0x27, 0x01d6},
+		   [40] = {0x28, 0xf8c2}, [41] = {0x29, 0x3080},
+		   [42] = {0x2a, 0x3082}, [43] = {0x2b, 0x2078},
+		   [44] = {0x2c, 0xffff}, [45] = {0x2d, 0xffff},
+		   [46] = {0x2e, 0x0000}, [47] = {0x2f, 0x0040}, },
+	.check_efuse = false,
+	.do_toggle = true,
+	.do_toggle_once = false,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1619_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [8] = {0x08, 0x3591},
+		   [38] = {0x26, 0x840b},
+		   [40] = {0x28, 0xf842}, },
+	.check_efuse = false,
+	.do_toggle = true,
+	.do_toggle_once = false,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1319_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [1] = {0x01, 0xac86},
+		    [6] = {0x06, 0x0003},
+		    [9] = {0x09, 0x924c},
+		   [10] = {0x0a, 0xa608},
+		   [11] = {0x0b, 0xb905},
+		   [14] = {0x0e, 0x2010},
+		   [32] = {0x20, 0x705a},
+		   [33] = {0x21, 0xf645},
+		   [34] = {0x22, 0x0013},
+		   [35] = {0x23, 0xcb66},
+		   [41] = {0x29, 0xff00}, },
+	.check_efuse = true,
+	.do_toggle = true,
+	.do_toggle_once = false,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1619b_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [1] = {0x01, 0xac8c},
+		    [6] = {0x06, 0x0017},
+		    [9] = {0x09, 0x724c},
+		   [10] = {0x0a, 0xb610},
+		   [11] = {0x0b, 0xb90d},
+		   [13] = {0x0d, 0xef2a},
+		   [15] = {0x0f, 0x9050},
+		   [16] = {0x10, 0x000c},
+		   [32] = {0x20, 0x70ff},
+		   [34] = {0x22, 0x0013},
+		   [35] = {0x23, 0xdb66},
+		   [38] = {0x26, 0x8609},
+		   [41] = {0x29, 0xff13},
+		   [42] = {0x2a, 0x3070}, },
+	.check_efuse = true,
+	.do_toggle = false,
+	.do_toggle_once = true,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = false,
+};
+
+static const  struct phy_cfg rtd1319d_phy_cfg = {
+	.param_size = MAX_USB_PHY_DATA_SIZE,
+	.param = {  [1] = {0x01, 0xac89},
+		    [4] = {0x04, 0xf2f5},
+		    [6] = {0x06, 0x0017},
+		    [9] = {0x09, 0x424c},
+		   [10] = {0x0a, 0x9610},
+		   [11] = {0x0b, 0x9901},
+		   [12] = {0x0c, 0xf000},
+		   [13] = {0x0d, 0xef2a},
+		   [14] = {0x0e, 0x1000},
+		   [15] = {0x0f, 0x9050},
+		   [32] = {0x20, 0x7077},
+		   [35] = {0x23, 0x0b62},
+		   [37] = {0x25, 0x10ec},
+		   [42] = {0x2a, 0x3070}, },
+	.check_efuse = true,
+	.do_toggle = false,
+	.do_toggle_once = true,
+	.use_default_parameter = false,
+	.check_rx_front_end_offset = true,
+};
+
+static const struct of_device_id usbphy_rtk_dt_match[] = {
+	{ .compatible = "realtek,rtd1295-usb3phy", .data = &rtd1295_phy_cfg },
+	{ .compatible = "realtek,rtd1319-usb3phy", .data = &rtd1319_phy_cfg },
+	{ .compatible = "realtek,rtd1319d-usb3phy", .data = &rtd1319d_phy_cfg },
+	{ .compatible = "realtek,rtd1619-usb3phy", .data = &rtd1619_phy_cfg },
+	{ .compatible = "realtek,rtd1619b-usb3phy", .data = &rtd1619b_phy_cfg },
+	{},
+};
+MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
+
+static struct platform_driver rtk_usb3phy_driver = {
+	.probe		= rtk_usb3phy_probe,
+	.remove_new	= rtk_usb3phy_remove,
+	.driver		= {
+		.name	= "rtk-usb3phy",
+		.of_match_table = usbphy_rtk_dt_match,
+	},
+};
+
+module_platform_driver(rtk_usb3phy_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform: rtk-usb3phy");
+MODULE_AUTHOR("Stanley Chang <stanley_chang@realtek.com>");
+MODULE_DESCRIPTION("Realtek usb 3.0 phy driver");