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-rw-r--r--drivers/amba/bus.c14
-rw-r--r--drivers/bus/Kconfig11
-rw-r--r--drivers/bus/Makefile2
-rw-r--r--drivers/bus/arm-integrator-lm.c128
-rw-r--r--drivers/bus/ti-sysc.c25
-rw-r--r--drivers/bus/vexpress-config.c354
-rw-r--r--drivers/clk/Makefile2
-rw-r--r--drivers/clk/ti/clk-816x.c1
-rw-r--r--drivers/clk/versatile/Kconfig21
-rw-r--r--drivers/clk/versatile/clk-impd1.c121
-rw-r--r--drivers/clk/versatile/clk-vexpress-osc.c20
-rw-r--r--drivers/firmware/tegra/bpmp.c9
-rw-r--r--drivers/firmware/trusted_foundations.c21
-rw-r--r--drivers/mfd/Kconfig5
-rw-r--r--drivers/mfd/vexpress-sysreg.c99
-rw-r--r--drivers/misc/Kconfig9
-rw-r--r--drivers/misc/Makefile1
-rw-r--r--drivers/misc/vexpress-syscfg.c280
-rw-r--r--drivers/power/reset/Kconfig2
-rw-r--r--drivers/power/reset/vexpress-poweroff.c8
-rw-r--r--drivers/soc/imx/Makefile3
-rw-r--r--drivers/soc/imx/soc-imx.c192
22 files changed, 703 insertions, 625 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index 8558b629880b..ecc304149067 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -505,7 +505,7 @@ static DECLARE_DELAYED_WORK(deferred_retry_work, amba_deferred_retry_func);
#define DEFERRED_DEVICE_TIMEOUT (msecs_to_jiffies(5 * 1000))
-static void amba_deferred_retry_func(struct work_struct *dummy)
+static int amba_deferred_retry(void)
{
struct deferred_device *ddev, *tmp;
@@ -521,11 +521,19 @@ static void amba_deferred_retry_func(struct work_struct *dummy)
kfree(ddev);
}
+ mutex_unlock(&deferred_devices_lock);
+
+ return 0;
+}
+late_initcall(amba_deferred_retry);
+
+static void amba_deferred_retry_func(struct work_struct *dummy)
+{
+ amba_deferred_retry();
+
if (!list_empty(&deferred_devices))
schedule_delayed_work(&deferred_retry_work,
DEFERRED_DEVICE_TIMEOUT);
-
- mutex_unlock(&deferred_devices_lock);
}
/**
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index 6d4e4497b59b..2d73d4b6c9a6 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -20,6 +20,15 @@ config ARM_CCI400_PORT_CTRL
Low level power management driver for CCI400 cache coherent
interconnect for ARM platforms.
+config ARM_INTEGRATOR_LM
+ bool "ARM Integrator Logic Module bus"
+ depends on HAS_IOMEM
+ depends on ARCH_INTEGRATOR || COMPILE_TEST
+ default ARCH_INTEGRATOR
+ help
+ Say y here to enable support for the ARM Logic Module bus
+ found on the ARM Integrator AP (Application Platform)
+
config BRCMSTB_GISB_ARB
bool "Broadcom STB GISB bus arbiter"
depends on ARM || ARM64 || MIPS
@@ -183,7 +192,7 @@ config UNIPHIER_SYSTEM_BUS
needed to use on-board devices connected to UniPhier SoCs.
config VEXPRESS_CONFIG
- bool "Versatile Express configuration bus"
+ tristate "Versatile Express configuration bus"
default y if ARCH_VEXPRESS
depends on ARM || ARM64
depends on OF
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
index 05f32cd694a4..97552b427f12 100644
--- a/drivers/bus/Makefile
+++ b/drivers/bus/Makefile
@@ -5,7 +5,7 @@
# Interconnect bus drivers for ARM platforms
obj-$(CONFIG_ARM_CCI) += arm-cci.o
-
+obj-$(CONFIG_ARM_INTEGRATOR_LM) += arm-integrator-lm.o
obj-$(CONFIG_HISILICON_LPC) += hisi_lpc.o
obj-$(CONFIG_BRCMSTB_GISB_ARB) += brcmstb_gisb.o
obj-$(CONFIG_MOXTET) += moxtet.o
diff --git a/drivers/bus/arm-integrator-lm.c b/drivers/bus/arm-integrator-lm.c
new file mode 100644
index 000000000000..845b6c43fef8
--- /dev/null
+++ b/drivers/bus/arm-integrator-lm.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ARM Integrator Logical Module bus driver
+ * Copyright (C) 2020 Linaro Ltd.
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * See the device tree bindings for this block for more details on the
+ * hardware.
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/platform_device.h>
+#include <linux/bitops.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+
+/* All information about the connected logic modules are in here */
+#define INTEGRATOR_SC_DEC_OFFSET 0x10
+
+/* Base address for the expansion modules */
+#define INTEGRATOR_AP_EXP_BASE 0xc0000000
+#define INTEGRATOR_AP_EXP_STRIDE 0x10000000
+
+static int integrator_lm_populate(int num, struct device *dev)
+{
+ struct device_node *np = dev->of_node;
+ struct device_node *child;
+ u32 base;
+ int ret;
+
+ base = INTEGRATOR_AP_EXP_BASE + (num * INTEGRATOR_AP_EXP_STRIDE);
+
+ /* Walk over the child nodes and see what chipselects we use */
+ for_each_available_child_of_node(np, child) {
+ struct resource res;
+
+ ret = of_address_to_resource(child, 0, &res);
+ if (ret) {
+ dev_info(dev, "no valid address on child\n");
+ continue;
+ }
+
+ /* First populate the syscon then any devices */
+ if (res.start == base) {
+ dev_info(dev, "populate module @0x%08x from DT\n",
+ base);
+ ret = of_platform_default_populate(child, NULL, dev);
+ if (ret) {
+ dev_err(dev, "failed to populate module\n");
+ return ret;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static const struct of_device_id integrator_ap_syscon_match[] = {
+ { .compatible = "arm,integrator-ap-syscon"},
+ { },
+};
+
+static int integrator_ap_lm_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *syscon;
+ static struct regmap *map;
+ u32 val;
+ int ret;
+ int i;
+
+ /* Look up the system controller */
+ syscon = of_find_matching_node(NULL, integrator_ap_syscon_match);
+ if (!syscon) {
+ dev_err(dev,
+ "could not find Integrator/AP system controller\n");
+ return -ENODEV;
+ }
+ map = syscon_node_to_regmap(syscon);
+ if (IS_ERR(map)) {
+ dev_err(dev,
+ "could not find Integrator/AP system controller\n");
+ return PTR_ERR(map);
+ }
+
+ ret = regmap_read(map, INTEGRATOR_SC_DEC_OFFSET, &val);
+ if (ret) {
+ dev_err(dev, "could not read from Integrator/AP syscon\n");
+ return ret;
+ }
+
+ /* Loop over the connected modules */
+ for (i = 0; i < 4; i++) {
+ if (!(val & BIT(4 + i)))
+ continue;
+
+ dev_info(dev, "detected module in slot %d\n", i);
+ ret = integrator_lm_populate(i, dev);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id integrator_ap_lm_match[] = {
+ { .compatible = "arm,integrator-ap-lm"},
+ { },
+};
+
+static struct platform_driver integrator_ap_lm_driver = {
+ .probe = integrator_ap_lm_probe,
+ .driver = {
+ .name = "integratorap-lm",
+ .of_match_table = integrator_ap_lm_match,
+ },
+};
+module_platform_driver(integrator_ap_lm_driver);
+MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>");
+MODULE_DESCRIPTION("Integrator AP Logical Module driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
index e5f5f48d69d2..3affd180baac 100644
--- a/drivers/bus/ti-sysc.c
+++ b/drivers/bus/ti-sysc.c
@@ -1275,13 +1275,6 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
SYSC_QUIRK_LEGACY_IDLE),
SYSC_QUIRK("smartreflex", 0, -ENODEV, 0x38, -ENODEV, 0x00000000, 0xffffffff,
SYSC_QUIRK_LEGACY_IDLE),
- SYSC_QUIRK("timer", 0, 0, 0x10, 0x14, 0x00000015, 0xffffffff,
- 0),
- /* Some timers on omap4 and later */
- SYSC_QUIRK("timer", 0, 0, 0x10, -ENODEV, 0x50002100, 0xffffffff,
- 0),
- SYSC_QUIRK("timer", 0, 0, 0x10, -ENODEV, 0x4fff1301, 0xffff00ff,
- 0),
SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000046, 0xffffffff,
SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_LEGACY_IDLE),
SYSC_QUIRK("uart", 0, 0x50, 0x54, 0x58, 0x00000052, 0xffffffff,
@@ -1404,6 +1397,13 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = {
SYSC_QUIRK("slimbus", 0, 0, 0x10, -ENODEV, 0x40002903, 0xffffffff, 0),
SYSC_QUIRK("spinlock", 0, 0, 0x10, -ENODEV, 0x50020000, 0xffffffff, 0),
SYSC_QUIRK("rng", 0, 0x1fe0, 0x1fe4, -ENODEV, 0x00000020, 0xffffffff, 0),
+ SYSC_QUIRK("timer", 0, 0, 0x10, 0x14, 0x00000013, 0xffffffff, 0),
+ SYSC_QUIRK("timer", 0, 0, 0x10, 0x14, 0x00000015, 0xffffffff, 0),
+ /* Some timers on omap4 and later */
+ SYSC_QUIRK("timer", 0, 0, 0x10, -ENODEV, 0x50002100, 0xffffffff, 0),
+ SYSC_QUIRK("timer", 0, 0, 0x10, -ENODEV, 0x4fff1301, 0xffff00ff, 0),
+ SYSC_QUIRK("timer32k", 0, 0, 0x4, -ENODEV, 0x00000040, 0xffffffff, 0),
+ SYSC_QUIRK("timer32k", 0, 0, 0x4, -ENODEV, 0x00000011, 0xffffffff, 0),
SYSC_QUIRK("timer32k", 0, 0, 0x4, -ENODEV, 0x00000060, 0xffffffff, 0),
SYSC_QUIRK("tpcc", 0, 0, -ENODEV, -ENODEV, 0x40014c00, 0xffffffff, 0),
SYSC_QUIRK("usbhstll", 0, 0, 0x10, 0x14, 0x00000004, 0xffffffff, 0),
@@ -2744,6 +2744,17 @@ static int sysc_init_soc(struct sysc *ddata)
if (match && match->data)
sysc_soc->soc = (int)match->data;
+ /* Ignore devices that are not available on HS and EMU SoCs */
+ if (!sysc_soc->general_purpose) {
+ switch (sysc_soc->soc) {
+ case SOC_3430 ... SOC_3630:
+ sysc_add_disabled(0x48304000); /* timer12 */
+ break;
+ default:
+ break;
+ };
+ }
+
match = soc_device_match(sysc_soc_feat_match);
if (!match)
return 0;
diff --git a/drivers/bus/vexpress-config.c b/drivers/bus/vexpress-config.c
index ff70575b2db6..a58ac0c8e282 100644
--- a/drivers/bus/vexpress-config.c
+++ b/drivers/bus/vexpress-config.c
@@ -6,10 +6,61 @@
#include <linux/err.h>
#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
#include <linux/of.h>
+#include <linux/platform_device.h>
#include <linux/of_device.h>
+#include <linux/sched/signal.h>
+#include <linux/slab.h>
#include <linux/vexpress.h>
+#define SYS_MISC 0x0
+#define SYS_MISC_MASTERSITE (1 << 14)
+
+#define SYS_PROCID0 0x24
+#define SYS_PROCID1 0x28
+#define SYS_HBI_MASK 0xfff
+#define SYS_PROCIDx_HBI_SHIFT 0
+
+#define SYS_CFGDATA 0x40
+
+#define SYS_CFGCTRL 0x44
+#define SYS_CFGCTRL_START (1 << 31)
+#define SYS_CFGCTRL_WRITE (1 << 30)
+#define SYS_CFGCTRL_DCC(n) (((n) & 0xf) << 26)
+#define SYS_CFGCTRL_FUNC(n) (((n) & 0x3f) << 20)
+#define SYS_CFGCTRL_SITE(n) (((n) & 0x3) << 16)
+#define SYS_CFGCTRL_POSITION(n) (((n) & 0xf) << 12)
+#define SYS_CFGCTRL_DEVICE(n) (((n) & 0xfff) << 0)
+
+#define SYS_CFGSTAT 0x48
+#define SYS_CFGSTAT_ERR (1 << 1)
+#define SYS_CFGSTAT_COMPLETE (1 << 0)
+
+#define VEXPRESS_SITE_MB 0
+#define VEXPRESS_SITE_DB1 1
+#define VEXPRESS_SITE_DB2 2
+#define VEXPRESS_SITE_MASTER 0xf
+
+struct vexpress_syscfg {
+ struct device *dev;
+ void __iomem *base;
+ struct list_head funcs;
+};
+
+struct vexpress_syscfg_func {
+ struct list_head list;
+ struct vexpress_syscfg *syscfg;
+ struct regmap *regmap;
+ int num_templates;
+ u32 template[]; /* Keep it last! */
+};
+
+struct vexpress_config_bridge_ops {
+ struct regmap * (*regmap_init)(struct device *dev, void *context);
+ void (*regmap_exit)(struct regmap *regmap, void *context);
+};
struct vexpress_config_bridge {
struct vexpress_config_bridge_ops *ops;
@@ -18,26 +69,20 @@ struct vexpress_config_bridge {
static DEFINE_MUTEX(vexpress_config_mutex);
-static struct class *vexpress_config_class;
static u32 vexpress_config_site_master = VEXPRESS_SITE_MASTER;
-void vexpress_config_set_master(u32 site)
+static void vexpress_config_set_master(u32 site)
{
vexpress_config_site_master = site;
}
-u32 vexpress_config_get_master(void)
-{
- return vexpress_config_site_master;
-}
-
-void vexpress_config_lock(void *arg)
+static void vexpress_config_lock(void *arg)
{
mutex_lock(&vexpress_config_mutex);
}
-void vexpress_config_unlock(void *arg)
+static void vexpress_config_unlock(void *arg)
{
mutex_unlock(&vexpress_config_mutex);
}
@@ -59,7 +104,7 @@ static void vexpress_config_find_prop(struct device_node *node,
}
}
-int vexpress_config_get_topo(struct device_node *node, u32 *site,
+static int vexpress_config_get_topo(struct device_node *node, u32 *site,
u32 *position, u32 *dcc)
{
vexpress_config_find_prop(node, "arm,vexpress,site", site);
@@ -88,9 +133,6 @@ struct regmap *devm_regmap_init_vexpress_config(struct device *dev)
struct regmap *regmap;
struct regmap **res;
- if (WARN_ON(dev->parent->class != vexpress_config_class))
- return ERR_PTR(-ENODEV);
-
bridge = dev_get_drvdata(dev->parent);
if (WARN_ON(!bridge))
return ERR_PTR(-EINVAL);
@@ -113,91 +155,265 @@ struct regmap *devm_regmap_init_vexpress_config(struct device *dev)
}
EXPORT_SYMBOL_GPL(devm_regmap_init_vexpress_config);
-struct device *vexpress_config_bridge_register(struct device *parent,
- struct vexpress_config_bridge_ops *ops, void *context)
+static int vexpress_syscfg_exec(struct vexpress_syscfg_func *func,
+ int index, bool write, u32 *data)
{
- struct device *dev;
- struct vexpress_config_bridge *bridge;
+ struct vexpress_syscfg *syscfg = func->syscfg;
+ u32 command, status;
+ int tries;
+ long timeout;
- if (!vexpress_config_class) {
- vexpress_config_class = class_create(THIS_MODULE,
- "vexpress-config");
- if (IS_ERR(vexpress_config_class))
- return (void *)vexpress_config_class;
+ if (WARN_ON(index >= func->num_templates))
+ return -EINVAL;
+
+ command = readl(syscfg->base + SYS_CFGCTRL);
+ if (WARN_ON(command & SYS_CFGCTRL_START))
+ return -EBUSY;
+
+ command = func->template[index];
+ command |= SYS_CFGCTRL_START;
+ command |= write ? SYS_CFGCTRL_WRITE : 0;
+
+ /* Use a canary for reads */
+ if (!write)
+ *data = 0xdeadbeef;
+
+ dev_dbg(syscfg->dev, "func %p, command %x, data %x\n",
+ func, command, *data);
+ writel(*data, syscfg->base + SYS_CFGDATA);
+ writel(0, syscfg->base + SYS_CFGSTAT);
+ writel(command, syscfg->base + SYS_CFGCTRL);
+ mb();
+
+ /* The operation can take ages... Go to sleep, 100us initially */
+ tries = 100;
+ timeout = 100;
+ do {
+ if (!irqs_disabled()) {
+ set_current_state(TASK_INTERRUPTIBLE);
+ schedule_timeout(usecs_to_jiffies(timeout));
+ if (signal_pending(current))
+ return -EINTR;
+ } else {
+ udelay(timeout);
+ }
+
+ status = readl(syscfg->base + SYS_CFGSTAT);
+ if (status & SYS_CFGSTAT_ERR)
+ return -EFAULT;
+
+ if (timeout > 20)
+ timeout -= 20;
+ } while (--tries && !(status & SYS_CFGSTAT_COMPLETE));
+ if (WARN_ON_ONCE(!tries))
+ return -ETIMEDOUT;
+
+ if (!write) {
+ *data = readl(syscfg->base + SYS_CFGDATA);
+ dev_dbg(syscfg->dev, "func %p, read data %x\n", func, *data);
}
- dev = device_create(vexpress_config_class, parent, 0,
- NULL, "%s.bridge", dev_name(parent));
+ return 0;
+}
+
+static int vexpress_syscfg_read(void *context, unsigned int index,
+ unsigned int *val)
+{
+ struct vexpress_syscfg_func *func = context;
+
+ return vexpress_syscfg_exec(func, index, false, val);
+}
+
+static int vexpress_syscfg_write(void *context, unsigned int index,
+ unsigned int val)
+{
+ struct vexpress_syscfg_func *func = context;
+
+ return vexpress_syscfg_exec(func, index, true, &val);
+}
+
+static struct regmap_config vexpress_syscfg_regmap_config = {
+ .lock = vexpress_config_lock,
+ .unlock = vexpress_config_unlock,
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_read = vexpress_syscfg_read,
+ .reg_write = vexpress_syscfg_write,
+ .reg_format_endian = REGMAP_ENDIAN_LITTLE,
+ .val_format_endian = REGMAP_ENDIAN_LITTLE,
+};
+
- if (IS_ERR(dev))
- return dev;
+static struct regmap *vexpress_syscfg_regmap_init(struct device *dev,
+ void *context)
+{
+ int err;
+ struct vexpress_syscfg *syscfg = context;
+ struct vexpress_syscfg_func *func;
+ struct property *prop;
+ const __be32 *val = NULL;
+ __be32 energy_quirk[4];
+ int num;
+ u32 site, position, dcc;
+ int i;
+
+ err = vexpress_config_get_topo(dev->of_node, &site,
+ &position, &dcc);
+ if (err)
+ return ERR_PTR(err);
+
+ prop = of_find_property(dev->of_node,
+ "arm,vexpress-sysreg,func", NULL);
+ if (!prop)
+ return ERR_PTR(-EINVAL);
- bridge = devm_kmalloc(dev, sizeof(*bridge), GFP_KERNEL);
- if (!bridge) {
- put_device(dev);
- device_unregister(dev);
+ num = prop->length / sizeof(u32) / 2;
+ val = prop->value;
+
+ /*
+ * "arm,vexpress-energy" function used to be described
+ * by its first device only, now it requires both
+ */
+ if (num == 1 && of_device_is_compatible(dev->of_node,
+ "arm,vexpress-energy")) {
+ num = 2;
+ energy_quirk[0] = *val;
+ energy_quirk[2] = *val++;
+ energy_quirk[1] = *val;
+ energy_quirk[3] = cpu_to_be32(be32_to_cpup(val) + 1);
+ val = energy_quirk;
+ }
+
+ func = kzalloc(struct_size(func, template, num), GFP_KERNEL);
+ if (!func)
return ERR_PTR(-ENOMEM);
+
+ func->syscfg = syscfg;
+ func->num_templates = num;
+
+ for (i = 0; i < num; i++) {
+ u32 function, device;
+
+ function = be32_to_cpup(val++);
+ device = be32_to_cpup(val++);
+
+ dev_dbg(dev, "func %p: %u/%u/%u/%u/%u\n",
+ func, site, position, dcc,
+ function, device);
+
+ func->template[i] = SYS_CFGCTRL_DCC(dcc);
+ func->template[i] |= SYS_CFGCTRL_SITE(site);
+ func->template[i] |= SYS_CFGCTRL_POSITION(position);
+ func->template[i] |= SYS_CFGCTRL_FUNC(function);
+ func->template[i] |= SYS_CFGCTRL_DEVICE(device);
}
- bridge->ops = ops;
- bridge->context = context;
- dev_set_drvdata(dev, bridge);
+ vexpress_syscfg_regmap_config.max_register = num - 1;
- dev_dbg(parent, "Registered bridge '%s', parent node %p\n",
- dev_name(dev), parent->of_node);
+ func->regmap = regmap_init(dev, NULL, func,
+ &vexpress_syscfg_regmap_config);
- return dev;
-}
+ if (IS_ERR(func->regmap)) {
+ void *err = func->regmap;
+ kfree(func);
+ return err;
+ }
+
+ list_add(&func->list, &syscfg->funcs);
-static int vexpress_config_node_match(struct device *dev, const void *data)
+ return func->regmap;
+}
+
+static void vexpress_syscfg_regmap_exit(struct regmap *regmap, void *context)
{
- const struct device_node *node = data;
+ struct vexpress_syscfg *syscfg = context;
+ struct vexpress_syscfg_func *func, *tmp;
- dev_dbg(dev, "Parent node %p, looking for %p\n",
- dev->parent->of_node, node);
+ regmap_exit(regmap);
- return dev->parent->of_node == node;
+ list_for_each_entry_safe(func, tmp, &syscfg->funcs, list) {
+ if (func->regmap == regmap) {
+ list_del(&syscfg->funcs);
+ kfree(func);
+ break;
+ }
+ }
}
-static int vexpress_config_populate(struct device_node *node)
+static struct vexpress_config_bridge_ops vexpress_syscfg_bridge_ops = {
+ .regmap_init = vexpress_syscfg_regmap_init,
+ .regmap_exit = vexpress_syscfg_regmap_exit,
+};
+
+
+static int vexpress_syscfg_probe(struct platform_device *pdev)
{
- struct device_node *bridge;
- struct device *parent;
- int ret;
+ struct vexpress_syscfg *syscfg;
+ struct resource *res;
+ struct vexpress_config_bridge *bridge;
+ struct device_node *node;
+ int master;
+ u32 dt_hbi;
+
+ syscfg = devm_kzalloc(&pdev->dev, sizeof(*syscfg), GFP_KERNEL);
+ if (!syscfg)
+ return -ENOMEM;
+ syscfg->dev = &pdev->dev;
+ INIT_LIST_HEAD(&syscfg->funcs);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ syscfg->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(syscfg->base))
+ return PTR_ERR(syscfg->base);
- bridge = of_parse_phandle(node, "arm,vexpress,config-bridge", 0);
+ bridge = devm_kmalloc(&pdev->dev, sizeof(*bridge), GFP_KERNEL);
if (!bridge)
- return -EINVAL;
+ return -ENOMEM;
- parent = class_find_device(vexpress_config_class, NULL, bridge,
- vexpress_config_node_match);
- of_node_put(bridge);
- if (WARN_ON(!parent))
- return -ENODEV;
+ bridge->ops = &vexpress_syscfg_bridge_ops;
+ bridge->context = syscfg;
- ret = of_platform_populate(node, NULL, NULL, parent);
+ dev_set_drvdata(&pdev->dev, bridge);
- put_device(parent);
+ master = readl(syscfg->base + SYS_MISC) & SYS_MISC_MASTERSITE ?
+ VEXPRESS_SITE_DB2 : VEXPRESS_SITE_DB1;
+ vexpress_config_set_master(master);
- return ret;
-}
+ /* Confirm board type against DT property, if available */
+ if (of_property_read_u32(of_root, "arm,hbi", &dt_hbi) == 0) {
+ u32 id = readl(syscfg->base + (master == VEXPRESS_SITE_DB1 ?
+ SYS_PROCID0 : SYS_PROCID1));
+ u32 hbi = (id >> SYS_PROCIDx_HBI_SHIFT) & SYS_HBI_MASK;
-static int __init vexpress_config_init(void)
-{
- int err = 0;
- struct device_node *node;
+ if (WARN_ON(dt_hbi != hbi))
+ dev_warn(&pdev->dev, "DT HBI (%x) is not matching hardware (%x)!\n",
+ dt_hbi, hbi);
+ }
- /* Need the config devices early, before the "normal" devices... */
for_each_compatible_node(node, NULL, "arm,vexpress,config-bus") {
- err = vexpress_config_populate(node);
- if (err) {
- of_node_put(node);
- break;
- }
+ struct device_node *bridge_np;
+
+ bridge_np = of_parse_phandle(node, "arm,vexpress,config-bridge", 0);
+ if (bridge_np != pdev->dev.parent->of_node)
+ continue;
+
+ of_platform_populate(node, NULL, NULL, &pdev->dev);
}
- return err;
+ return 0;
}
-postcore_initcall(vexpress_config_init);
+static const struct platform_device_id vexpress_syscfg_id_table[] = {
+ { "vexpress-syscfg", },
+ {},
+};
+MODULE_DEVICE_TABLE(platform, vexpress_syscfg_id_table);
+
+static struct platform_driver vexpress_syscfg_driver = {
+ .driver.name = "vexpress-syscfg",
+ .id_table = vexpress_syscfg_id_table,
+ .probe = vexpress_syscfg_probe,
+};
+module_platform_driver(vexpress_syscfg_driver);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index f4169cc2fd31..fb30c16e1596 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -114,7 +114,7 @@ obj-$(CONFIG_ARCH_TEGRA) += tegra/
obj-y += ti/
obj-$(CONFIG_CLK_UNIPHIER) += uniphier/
obj-$(CONFIG_ARCH_U8500) += ux500/
-obj-$(CONFIG_COMMON_CLK_VERSATILE) += versatile/
+obj-y += versatile/
ifeq ($(CONFIG_COMMON_CLK), y)
obj-$(CONFIG_X86) += x86/
endif
diff --git a/drivers/clk/ti/clk-816x.c b/drivers/clk/ti/clk-816x.c
index 7d215cdf9dda..9daf3825f289 100644
--- a/drivers/clk/ti/clk-816x.c
+++ b/drivers/clk/ti/clk-816x.c
@@ -73,6 +73,7 @@ static const char *enable_init_clks[] = {
"ddr_pll_clk1",
"ddr_pll_clk2",
"ddr_pll_clk3",
+ "sysclk6_ck",
};
int __init dm816x_dt_clk_init(void)
diff --git a/drivers/clk/versatile/Kconfig b/drivers/clk/versatile/Kconfig
index c2618f1477a2..8c1b0e8e8d32 100644
--- a/drivers/clk/versatile/Kconfig
+++ b/drivers/clk/versatile/Kconfig
@@ -1,33 +1,32 @@
# SPDX-License-Identifier: GPL-2.0-only
-config ICST
- bool
-config COMMON_CLK_VERSATILE
- bool "Clock driver for ARM Reference designs"
+menu "Clock driver for ARM Reference designs"
depends on ARCH_INTEGRATOR || ARCH_REALVIEW || \
- ARCH_VERSATILE || ARCH_VEXPRESS || ARM64 || \
- COMPILE_TEST
+ ARCH_VERSATILE || ARCH_VEXPRESS || COMPILE_TEST
+
+config ICST
+ bool "Clock driver for ARM Reference designs ICST"
select REGMAP_MMIO
---help---
Supports clocking on ARM Reference designs:
- Integrator/AP and Integrator/CP
- RealView PB1176, EB, PB11MP and PBX
- - Versatile Express
config CLK_SP810
bool "Clock driver for ARM SP810 System Controller"
- depends on COMMON_CLK_VERSATILE
- default y if ARCH_VEXPRESS
+ default y if (ARCH_VEXPRESS && ARM)
---help---
Supports clock muxing (REFCLK/TIMCLK to TIMERCLKEN0-3) capabilities
of the ARM SP810 System Controller cell.
config CLK_VEXPRESS_OSC
- bool "Clock driver for Versatile Express OSC clock generators"
- depends on COMMON_CLK_VERSATILE
+ tristate "Clock driver for Versatile Express OSC clock generators"
depends on VEXPRESS_CONFIG
+ select REGMAP_MMIO
default y if ARCH_VEXPRESS
---help---
Simple regmap-based driver driving clock generators on Versatile
Express platforms hidden behind its configuration infrastructure,
commonly known as OSCs.
+
+endmenu
diff --git a/drivers/clk/versatile/clk-impd1.c b/drivers/clk/versatile/clk-impd1.c
index f9f4babe3ca6..ca798249544d 100644
--- a/drivers/clk/versatile/clk-impd1.c
+++ b/drivers/clk/versatile/clk-impd1.c
@@ -8,7 +8,6 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/platform_device.h>
-#include <linux/platform_data/clk-integrator.h>
#include <linux/module.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
@@ -20,26 +19,6 @@
#define IMPD1_OSC2 0x04
#define IMPD1_LOCK 0x08
-struct impd1_clk {
- char *pclkname;
- struct clk *pclk;
- char *vco1name;
- struct clk *vco1clk;
- char *vco2name;
- struct clk *vco2clk;
- struct clk *mmciclk;
- char *uartname;
- struct clk *uartclk;
- char *spiname;
- struct clk *spiclk;
- char *scname;
- struct clk *scclk;
- struct clk_lookup *clks[15];
-};
-
-/* One entry for each connected IM-PD1 LM */
-static struct impd1_clk impd1_clks[4];
-
/*
* There are two VCO's on the IM-PD1
*/
@@ -80,106 +59,6 @@ static const struct clk_icst_desc impd1_icst2_desc = {
.lock_offset = IMPD1_LOCK,
};
-/**
- * integrator_impd1_clk_init() - set up the integrator clock tree
- * @base: base address of the logic module (LM)
- * @id: the ID of this LM
- */
-void integrator_impd1_clk_init(void __iomem *base, unsigned int id)
-{
- struct impd1_clk *imc;
- struct clk *clk;
- struct clk *pclk;
- int i;
-
- if (id > 3) {
- pr_crit("no more than 4 LMs can be attached\n");
- return;
- }
- imc = &impd1_clks[id];
-
- /* Register the fixed rate PCLK */
- imc->pclkname = kasprintf(GFP_KERNEL, "lm%x-pclk", id);
- pclk = clk_register_fixed_rate(NULL, imc->pclkname, NULL, 0, 0);
- imc->pclk = pclk;
-
- imc->vco1name = kasprintf(GFP_KERNEL, "lm%x-vco1", id);
- clk = icst_clk_register(NULL, &impd1_icst1_desc, imc->vco1name, NULL,
- base);
- imc->vco1clk = clk;
- imc->clks[0] = clkdev_alloc(pclk, "apb_pclk", "lm%x:01000", id);
- imc->clks[1] = clkdev_alloc(clk, NULL, "lm%x:01000", id);
-
- /* VCO2 is also called "CLK2" */
- imc->vco2name = kasprintf(GFP_KERNEL, "lm%x-vco2", id);
- clk = icst_clk_register(NULL, &impd1_icst2_desc, imc->vco2name, NULL,
- base);
- imc->vco2clk = clk;
-
- /* MMCI uses CLK2 right off */
- imc->clks[2] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00700", id);
- imc->clks[3] = clkdev_alloc(clk, NULL, "lm%x:00700", id);
-
- /* UART reference clock divides CLK2 by a fixed factor 4 */
- imc->uartname = kasprintf(GFP_KERNEL, "lm%x-uartclk", id);
- clk = clk_register_fixed_factor(NULL, imc->uartname, imc->vco2name,
- CLK_IGNORE_UNUSED, 1, 4);
- imc->uartclk = clk;
- imc->clks[4] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00100", id);
- imc->clks[5] = clkdev_alloc(clk, NULL, "lm%x:00100", id);
- imc->clks[6] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00200", id);
- imc->clks[7] = clkdev_alloc(clk, NULL, "lm%x:00200", id);
-
- /* SPI PL022 clock divides CLK2 by a fixed factor 64 */
- imc->spiname = kasprintf(GFP_KERNEL, "lm%x-spiclk", id);
- clk = clk_register_fixed_factor(NULL, imc->spiname, imc->vco2name,
- CLK_IGNORE_UNUSED, 1, 64);
- imc->clks[8] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00300", id);
- imc->clks[9] = clkdev_alloc(clk, NULL, "lm%x:00300", id);
-
- /* The GPIO blocks and AACI have only PCLK */
- imc->clks[10] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00400", id);
- imc->clks[11] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00500", id);
- imc->clks[12] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00800", id);
-
- /* Smart Card clock divides CLK2 by a fixed factor 4 */
- imc->scname = kasprintf(GFP_KERNEL, "lm%x-scclk", id);
- clk = clk_register_fixed_factor(NULL, imc->scname, imc->vco2name,
- CLK_IGNORE_UNUSED, 1, 4);
- imc->scclk = clk;
- imc->clks[13] = clkdev_alloc(pclk, "apb_pclk", "lm%x:00600", id);
- imc->clks[14] = clkdev_alloc(clk, NULL, "lm%x:00600", id);
-
- for (i = 0; i < ARRAY_SIZE(imc->clks); i++)
- clkdev_add(imc->clks[i]);
-}
-EXPORT_SYMBOL_GPL(integrator_impd1_clk_init);
-
-void integrator_impd1_clk_exit(unsigned int id)
-{
- int i;
- struct impd1_clk *imc;
-
- if (id > 3)
- return;
- imc = &impd1_clks[id];
-
- for (i = 0; i < ARRAY_SIZE(imc->clks); i++)
- clkdev_drop(imc->clks[i]);
- clk_unregister(imc->spiclk);
- clk_unregister(imc->uartclk);
- clk_unregister(imc->vco2clk);
- clk_unregister(imc->vco1clk);
- clk_unregister(imc->pclk);
- kfree(imc->scname);
- kfree(imc->spiname);
- kfree(imc->uartname);
- kfree(imc->vco2name);
- kfree(imc->vco1name);
- kfree(imc->pclkname);
-}
-EXPORT_SYMBOL_GPL(integrator_impd1_clk_exit);
-
static int integrator_impd1_clk_spawn(struct device *dev,
struct device_node *parent,
struct device_node *np)
diff --git a/drivers/clk/versatile/clk-vexpress-osc.c b/drivers/clk/versatile/clk-vexpress-osc.c
index 7ade146a3ea9..b2b32fa2d7c3 100644
--- a/drivers/clk/versatile/clk-vexpress-osc.c
+++ b/drivers/clk/versatile/clk-vexpress-osc.c
@@ -7,6 +7,7 @@
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/err.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@@ -65,8 +66,8 @@ static int vexpress_osc_probe(struct platform_device *pdev)
{
struct clk_init_data init;
struct vexpress_osc *osc;
- struct clk *clk;
u32 range[2];
+ int ret;
osc = devm_kzalloc(&pdev->dev, sizeof(*osc), GFP_KERNEL);
if (!osc)
@@ -92,11 +93,11 @@ static int vexpress_osc_probe(struct platform_device *pdev)
osc->hw.init = &init;
- clk = clk_register(NULL, &osc->hw);
- if (IS_ERR(clk))
- return PTR_ERR(clk);
+ ret = devm_clk_hw_register(&pdev->dev, &osc->hw);
+ if (ret < 0)
+ return ret;
- of_clk_add_provider(pdev->dev.of_node, of_clk_src_simple_get, clk);
+ devm_of_clk_add_hw_provider(&pdev->dev, of_clk_hw_simple_get, &osc->hw);
clk_hw_set_rate_range(&osc->hw, osc->rate_min, osc->rate_max);
dev_dbg(&pdev->dev, "Registered clock '%s'\n", init.name);
@@ -108,6 +109,7 @@ static const struct of_device_id vexpress_osc_of_match[] = {
{ .compatible = "arm,vexpress-osc", },
{}
};
+MODULE_DEVICE_TABLE(of, vexpress_osc_of_match);
static struct platform_driver vexpress_osc_driver = {
.driver = {
@@ -116,9 +118,5 @@ static struct platform_driver vexpress_osc_driver = {
},
.probe = vexpress_osc_probe,
};
-
-static int __init vexpress_osc_init(void)
-{
- return platform_driver_register(&vexpress_osc_driver);
-}
-core_initcall(vexpress_osc_init);
+module_platform_driver(vexpress_osc_driver);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c
index 6741fcda0c37..fe6702df24bf 100644
--- a/drivers/firmware/tegra/bpmp.c
+++ b/drivers/firmware/tegra/bpmp.c
@@ -6,6 +6,7 @@
#include <linux/clk/tegra.h>
#include <linux/genalloc.h>
#include <linux/mailbox_client.h>
+#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_device.h>
@@ -869,12 +870,8 @@ static struct platform_driver tegra_bpmp_driver = {
.name = "tegra-bpmp",
.of_match_table = tegra_bpmp_match,
.pm = &tegra_bpmp_pm_ops,
+ .suppress_bind_attrs = true,
},
.probe = tegra_bpmp_probe,
};
-
-static int __init tegra_bpmp_init(void)
-{
- return platform_driver_register(&tegra_bpmp_driver);
-}
-core_initcall(tegra_bpmp_init);
+builtin_platform_driver(tegra_bpmp_driver);
diff --git a/drivers/firmware/trusted_foundations.c b/drivers/firmware/trusted_foundations.c
index fc544e19b0a1..1389fa9418a7 100644
--- a/drivers/firmware/trusted_foundations.c
+++ b/drivers/firmware/trusted_foundations.c
@@ -19,6 +19,7 @@
#define TF_CACHE_ENABLE 1
#define TF_CACHE_DISABLE 2
+#define TF_CACHE_REENABLE 4
#define TF_SET_CPU_BOOT_ADDR_SMC 0xfffff200
@@ -29,6 +30,7 @@
#define TF_CPU_PM_S1 0xffffffe4
#define TF_CPU_PM_S1_NOFLUSH_L2 0xffffffe7
+static unsigned long tf_idle_mode = TF_PM_MODE_NONE;
static unsigned long cpu_boot_addr;
static void tf_generic_smc(u32 type, u32 arg1, u32 arg2)
@@ -85,25 +87,40 @@ static int tf_prepare_idle(unsigned long mode)
cpu_boot_addr);
break;
+ case TF_PM_MODE_NONE:
+ break;
+
default:
return -EINVAL;
}
+ tf_idle_mode = mode;
+
return 0;
}
#ifdef CONFIG_CACHE_L2X0
static void tf_cache_write_sec(unsigned long val, unsigned int reg)
{
- u32 l2x0_way_mask = 0xff;
+ u32 enable_op, l2x0_way_mask = 0xff;
switch (reg) {
case L2X0_CTRL:
if (l2x0_saved_regs.aux_ctrl & L310_AUX_CTRL_ASSOCIATIVITY_16)
l2x0_way_mask = 0xffff;
+ switch (tf_idle_mode) {
+ case TF_PM_MODE_LP2:
+ enable_op = TF_CACHE_REENABLE;
+ break;
+
+ default:
+ enable_op = TF_CACHE_ENABLE;
+ break;
+ }
+
if (val == L2X0_CTRL_EN)
- tf_generic_smc(TF_CACHE_MAINT, TF_CACHE_ENABLE,
+ tf_generic_smc(TF_CACHE_MAINT, enable_op,
l2x0_saved_regs.aux_ctrl);
else
tf_generic_smc(TF_CACHE_MAINT, TF_CACHE_DISABLE,
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2df22de1e8d4..4f8b73d92df3 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -2078,10 +2078,9 @@ config MCP_UCB1200_TS
endmenu
config MFD_VEXPRESS_SYSREG
- bool "Versatile Express System Registers"
- depends on VEXPRESS_CONFIG && GPIOLIB && !ARCH_USES_GETTIMEOFFSET
+ tristate "Versatile Express System Registers"
+ depends on VEXPRESS_CONFIG && GPIOLIB
default y
- select CLKSRC_MMIO
select GPIO_GENERIC_PLATFORM
select MFD_CORE
select MFD_SYSCON
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
index c68ff56dbdb1..aaf24af287dd 100644
--- a/drivers/mfd/vexpress-sysreg.c
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -8,13 +8,12 @@
#include <linux/err.h>
#include <linux/io.h>
#include <linux/mfd/core.h>
-#include <linux/of_address.h>
+#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/platform_data/syscon.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/stat.h>
-#include <linux/vexpress.h>
#define SYS_ID 0x000
#define SYS_SW 0x004
@@ -37,35 +36,8 @@
#define SYS_CFGCTRL 0x0a4
#define SYS_CFGSTAT 0x0a8
-#define SYS_HBI_MASK 0xfff
-#define SYS_PROCIDx_HBI_SHIFT 0
-
-#define SYS_MISC_MASTERSITE (1 << 14)
-
-void vexpress_flags_set(u32 data)
-{
- static void __iomem *base;
-
- if (!base) {
- struct device_node *node = of_find_compatible_node(NULL, NULL,
- "arm,vexpress-sysreg");
-
- base = of_iomap(node, 0);
- }
-
- if (WARN_ON(!base))
- return;
-
- writel(~0, base + SYS_FLAGSCLR);
- writel(data, base + SYS_FLAGSSET);
-}
-
/* The sysreg block is just a random collection of various functions... */
-static struct syscon_platform_data vexpress_sysreg_sys_id_pdata = {
- .label = "sys_id",
-};
-
static struct bgpio_pdata vexpress_sysreg_sys_led_pdata = {
.label = "sys_led",
.base = -1,
@@ -84,24 +56,8 @@ static struct bgpio_pdata vexpress_sysreg_sys_flash_pdata = {
.ngpio = 1,
};
-static struct syscon_platform_data vexpress_sysreg_sys_misc_pdata = {
- .label = "sys_misc",
-};
-
-static struct syscon_platform_data vexpress_sysreg_sys_procid_pdata = {
- .label = "sys_procid",
-};
-
static struct mfd_cell vexpress_sysreg_cells[] = {
{
- .name = "syscon",
- .num_resources = 1,
- .resources = (struct resource []) {
- DEFINE_RES_MEM(SYS_ID, 0x4),
- },
- .platform_data = &vexpress_sysreg_sys_id_pdata,
- .pdata_size = sizeof(vexpress_sysreg_sys_id_pdata),
- }, {
.name = "basic-mmio-gpio",
.of_compatible = "arm,vexpress-sysreg,sys_led",
.num_resources = 1,
@@ -129,26 +85,10 @@ static struct mfd_cell vexpress_sysreg_cells[] = {
.platform_data = &vexpress_sysreg_sys_flash_pdata,
.pdata_size = sizeof(vexpress_sysreg_sys_flash_pdata),
}, {
- .name = "syscon",
- .num_resources = 1,
- .resources = (struct resource []) {
- DEFINE_RES_MEM(SYS_MISC, 0x4),
- },
- .platform_data = &vexpress_sysreg_sys_misc_pdata,
- .pdata_size = sizeof(vexpress_sysreg_sys_misc_pdata),
- }, {
- .name = "syscon",
- .num_resources = 1,
- .resources = (struct resource []) {
- DEFINE_RES_MEM(SYS_PROCID0, 0x8),
- },
- .platform_data = &vexpress_sysreg_sys_procid_pdata,
- .pdata_size = sizeof(vexpress_sysreg_sys_procid_pdata),
- }, {
.name = "vexpress-syscfg",
.num_resources = 1,
.resources = (struct resource []) {
- DEFINE_RES_MEM(SYS_CFGDATA, 0xc),
+ DEFINE_RES_MEM(SYS_MISC, 0x4c),
},
}
};
@@ -158,8 +98,6 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
struct resource *mem;
void __iomem *base;
struct gpio_chip *mmc_gpio_chip;
- int master;
- u32 dt_hbi;
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!mem)
@@ -169,21 +107,6 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
if (!base)
return -ENOMEM;
- master = readl(base + SYS_MISC) & SYS_MISC_MASTERSITE ?
- VEXPRESS_SITE_DB2 : VEXPRESS_SITE_DB1;
- vexpress_config_set_master(master);
-
- /* Confirm board type against DT property, if available */
- if (of_property_read_u32(of_root, "arm,hbi", &dt_hbi) == 0) {
- u32 id = readl(base + (master == VEXPRESS_SITE_DB1 ?
- SYS_PROCID0 : SYS_PROCID1));
- u32 hbi = (id >> SYS_PROCIDx_HBI_SHIFT) & SYS_HBI_MASK;
-
- if (WARN_ON(dt_hbi != hbi))
- dev_warn(&pdev->dev, "DT HBI (%x) is not matching hardware (%x)!\n",
- dt_hbi, hbi);
- }
-
/*
* Duplicated SYS_MCI pseudo-GPIO controller for compatibility with
* older trees using sysreg node for MMC control lines.
@@ -195,9 +118,9 @@ static int vexpress_sysreg_probe(struct platform_device *pdev)
bgpio_init(mmc_gpio_chip, &pdev->dev, 0x4, base + SYS_MCI,
NULL, NULL, NULL, NULL, 0);
mmc_gpio_chip->ngpio = 2;
- gpiochip_add_data(mmc_gpio_chip, NULL);
+ devm_gpiochip_add_data(&pdev->dev, mmc_gpio_chip, NULL);
- return mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
+ return devm_mfd_add_devices(&pdev->dev, PLATFORM_DEVID_AUTO,
vexpress_sysreg_cells,
ARRAY_SIZE(vexpress_sysreg_cells), mem, 0, NULL);
}
@@ -206,6 +129,7 @@ static const struct of_device_id vexpress_sysreg_match[] = {
{ .compatible = "arm,vexpress-sysreg", },
{},
};
+MODULE_DEVICE_TABLE(of, vexpress_sysreg_match);
static struct platform_driver vexpress_sysreg_driver = {
.driver = {
@@ -215,14 +139,5 @@ static struct platform_driver vexpress_sysreg_driver = {
.probe = vexpress_sysreg_probe,
};
-static int __init vexpress_sysreg_init(void)
-{
- struct device_node *node;
-
- /* Need the sysreg early, before any other device... */
- for_each_matching_node(node, vexpress_sysreg_match)
- of_platform_device_create(node, NULL, NULL);
-
- return platform_driver_register(&vexpress_sysreg_driver);
-}
-core_initcall(vexpress_sysreg_init);
+module_platform_driver(vexpress_sysreg_driver);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 99e151475d8f..edd5dd5ebfdc 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -423,15 +423,6 @@ config SRAM
config SRAM_EXEC
bool
-config VEXPRESS_SYSCFG
- bool "Versatile Express System Configuration driver"
- depends on VEXPRESS_CONFIG
- default y
- help
- ARM Ltd. Versatile Express uses specialised platform configuration
- bus. System Configuration interface is one of the possible means
- of generating transactions on this bus.
-
config PCI_ENDPOINT_TEST
depends on PCI
select CRC32
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 9abf2923d831..c7bd01ac6291 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -49,7 +49,6 @@ obj-$(CONFIG_SRAM_EXEC) += sram-exec.o
obj-y += mic/
obj-$(CONFIG_GENWQE) += genwqe/
obj-$(CONFIG_ECHO) += echo/
-obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o
obj-$(CONFIG_CXL_BASE) += cxl/
obj-$(CONFIG_PCI_ENDPOINT_TEST) += pci_endpoint_test.o
obj-$(CONFIG_OCXL) += ocxl/
diff --git a/drivers/misc/vexpress-syscfg.c b/drivers/misc/vexpress-syscfg.c
deleted file mode 100644
index a431787c0898..000000000000
--- a/drivers/misc/vexpress-syscfg.c
+++ /dev/null
@@ -1,280 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *
- * Copyright (C) 2014 ARM Limited
- */
-
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/sched/signal.h>
-#include <linux/slab.h>
-#include <linux/syscore_ops.h>
-#include <linux/vexpress.h>
-
-
-#define SYS_CFGDATA 0x0
-
-#define SYS_CFGCTRL 0x4
-#define SYS_CFGCTRL_START (1 << 31)
-#define SYS_CFGCTRL_WRITE (1 << 30)
-#define SYS_CFGCTRL_DCC(n) (((n) & 0xf) << 26)
-#define SYS_CFGCTRL_FUNC(n) (((n) & 0x3f) << 20)
-#define SYS_CFGCTRL_SITE(n) (((n) & 0x3) << 16)
-#define SYS_CFGCTRL_POSITION(n) (((n) & 0xf) << 12)
-#define SYS_CFGCTRL_DEVICE(n) (((n) & 0xfff) << 0)
-
-#define SYS_CFGSTAT 0x8
-#define SYS_CFGSTAT_ERR (1 << 1)
-#define SYS_CFGSTAT_COMPLETE (1 << 0)
-
-
-struct vexpress_syscfg {
- struct device *dev;
- void __iomem *base;
- struct list_head funcs;
-};
-
-struct vexpress_syscfg_func {
- struct list_head list;
- struct vexpress_syscfg *syscfg;
- struct regmap *regmap;
- int num_templates;
- u32 template[]; /* Keep it last! */
-};
-
-
-static int vexpress_syscfg_exec(struct vexpress_syscfg_func *func,
- int index, bool write, u32 *data)
-{
- struct vexpress_syscfg *syscfg = func->syscfg;
- u32 command, status;
- int tries;
- long timeout;
-
- if (WARN_ON(index >= func->num_templates))
- return -EINVAL;
-
- command = readl(syscfg->base + SYS_CFGCTRL);
- if (WARN_ON(command & SYS_CFGCTRL_START))
- return -EBUSY;
-
- command = func->template[index];
- command |= SYS_CFGCTRL_START;
- command |= write ? SYS_CFGCTRL_WRITE : 0;
-
- /* Use a canary for reads */
- if (!write)
- *data = 0xdeadbeef;
-
- dev_dbg(syscfg->dev, "func %p, command %x, data %x\n",
- func, command, *data);
- writel(*data, syscfg->base + SYS_CFGDATA);
- writel(0, syscfg->base + SYS_CFGSTAT);
- writel(command, syscfg->base + SYS_CFGCTRL);
- mb();
-
- /* The operation can take ages... Go to sleep, 100us initially */
- tries = 100;
- timeout = 100;
- do {
- if (!irqs_disabled()) {
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(usecs_to_jiffies(timeout));
- if (signal_pending(current))
- return -EINTR;
- } else {
- udelay(timeout);
- }
-
- status = readl(syscfg->base + SYS_CFGSTAT);
- if (status & SYS_CFGSTAT_ERR)
- return -EFAULT;
-
- if (timeout > 20)
- timeout -= 20;
- } while (--tries && !(status & SYS_CFGSTAT_COMPLETE));
- if (WARN_ON_ONCE(!tries))
- return -ETIMEDOUT;
-
- if (!write) {
- *data = readl(syscfg->base + SYS_CFGDATA);
- dev_dbg(syscfg->dev, "func %p, read data %x\n", func, *data);
- }
-
- return 0;
-}
-
-static int vexpress_syscfg_read(void *context, unsigned int index,
- unsigned int *val)
-{
- struct vexpress_syscfg_func *func = context;
-
- return vexpress_syscfg_exec(func, index, false, val);
-}
-
-static int vexpress_syscfg_write(void *context, unsigned int index,
- unsigned int val)
-{
- struct vexpress_syscfg_func *func = context;
-
- return vexpress_syscfg_exec(func, index, true, &val);
-}
-
-static struct regmap_config vexpress_syscfg_regmap_config = {
- .lock = vexpress_config_lock,
- .unlock = vexpress_config_unlock,
- .reg_bits = 32,
- .val_bits = 32,
- .reg_read = vexpress_syscfg_read,
- .reg_write = vexpress_syscfg_write,
- .reg_format_endian = REGMAP_ENDIAN_LITTLE,
- .val_format_endian = REGMAP_ENDIAN_LITTLE,
-};
-
-
-static struct regmap *vexpress_syscfg_regmap_init(struct device *dev,
- void *context)
-{
- int err;
- struct vexpress_syscfg *syscfg = context;
- struct vexpress_syscfg_func *func;
- struct property *prop;
- const __be32 *val = NULL;
- __be32 energy_quirk[4];
- int num;
- u32 site, position, dcc;
- int i;
-
- err = vexpress_config_get_topo(dev->of_node, &site,
- &position, &dcc);
- if (err)
- return ERR_PTR(err);
-
- prop = of_find_property(dev->of_node,
- "arm,vexpress-sysreg,func", NULL);
- if (!prop)
- return ERR_PTR(-EINVAL);
-
- num = prop->length / sizeof(u32) / 2;
- val = prop->value;
-
- /*
- * "arm,vexpress-energy" function used to be described
- * by its first device only, now it requires both
- */
- if (num == 1 && of_device_is_compatible(dev->of_node,
- "arm,vexpress-energy")) {
- num = 2;
- energy_quirk[0] = *val;
- energy_quirk[2] = *val++;
- energy_quirk[1] = *val;
- energy_quirk[3] = cpu_to_be32(be32_to_cpup(val) + 1);
- val = energy_quirk;
- }
-
- func = kzalloc(struct_size(func, template, num), GFP_KERNEL);
- if (!func)
- return ERR_PTR(-ENOMEM);
-
- func->syscfg = syscfg;
- func->num_templates = num;
-
- for (i = 0; i < num; i++) {
- u32 function, device;
-
- function = be32_to_cpup(val++);
- device = be32_to_cpup(val++);
-
- dev_dbg(dev, "func %p: %u/%u/%u/%u/%u\n",
- func, site, position, dcc,
- function, device);
-
- func->template[i] = SYS_CFGCTRL_DCC(dcc);
- func->template[i] |= SYS_CFGCTRL_SITE(site);
- func->template[i] |= SYS_CFGCTRL_POSITION(position);
- func->template[i] |= SYS_CFGCTRL_FUNC(function);
- func->template[i] |= SYS_CFGCTRL_DEVICE(device);
- }
-
- vexpress_syscfg_regmap_config.max_register = num - 1;
-
- func->regmap = regmap_init(dev, NULL, func,
- &vexpress_syscfg_regmap_config);
-
- if (IS_ERR(func->regmap)) {
- void *err = func->regmap;
-
- kfree(func);
- return err;
- }
-
- list_add(&func->list, &syscfg->funcs);
-
- return func->regmap;
-}
-
-static void vexpress_syscfg_regmap_exit(struct regmap *regmap, void *context)
-{
- struct vexpress_syscfg *syscfg = context;
- struct vexpress_syscfg_func *func, *tmp;
-
- regmap_exit(regmap);
-
- list_for_each_entry_safe(func, tmp, &syscfg->funcs, list) {
- if (func->regmap == regmap) {
- list_del(&syscfg->funcs);
- kfree(func);
- break;
- }
- }
-}
-
-static struct vexpress_config_bridge_ops vexpress_syscfg_bridge_ops = {
- .regmap_init = vexpress_syscfg_regmap_init,
- .regmap_exit = vexpress_syscfg_regmap_exit,
-};
-
-
-static int vexpress_syscfg_probe(struct platform_device *pdev)
-{
- struct vexpress_syscfg *syscfg;
- struct resource *res;
- struct device *bridge;
-
- syscfg = devm_kzalloc(&pdev->dev, sizeof(*syscfg), GFP_KERNEL);
- if (!syscfg)
- return -ENOMEM;
- syscfg->dev = &pdev->dev;
- INIT_LIST_HEAD(&syscfg->funcs);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- syscfg->base = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(syscfg->base))
- return PTR_ERR(syscfg->base);
-
- /* Must use dev.parent (MFD), as that's where DT phandle points at... */
- bridge = vexpress_config_bridge_register(pdev->dev.parent,
- &vexpress_syscfg_bridge_ops, syscfg);
-
- return PTR_ERR_OR_ZERO(bridge);
-}
-
-static const struct platform_device_id vexpress_syscfg_id_table[] = {
- { "vexpress-syscfg", },
- {},
-};
-
-static struct platform_driver vexpress_syscfg_driver = {
- .driver.name = "vexpress-syscfg",
- .id_table = vexpress_syscfg_id_table,
- .probe = vexpress_syscfg_probe,
-};
-
-static int __init vexpress_syscfg_init(void)
-{
- return platform_driver_register(&vexpress_syscfg_driver);
-}
-core_initcall(vexpress_syscfg_init);
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index 890380302080..df479c49be49 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -184,7 +184,7 @@ config POWER_RESET_VERSATILE
config POWER_RESET_VEXPRESS
bool "ARM Versatile Express power-off and reset driver"
depends on ARM || ARM64
- depends on VEXPRESS_CONFIG
+ depends on VEXPRESS_CONFIG=y
help
Power off and reset support for the ARM Ltd. Versatile
Express boards.
diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c
index 90cbaa8341e3..1fdbcbd95fc2 100644
--- a/drivers/power/reset/vexpress-poweroff.c
+++ b/drivers/power/reset/vexpress-poweroff.c
@@ -143,11 +143,7 @@ static struct platform_driver vexpress_reset_driver = {
.driver = {
.name = "vexpress-reset",
.of_match_table = vexpress_reset_of_match,
+ .suppress_bind_attrs = true,
},
};
-
-static int __init vexpress_reset_init(void)
-{
- return platform_driver_register(&vexpress_reset_driver);
-}
-device_initcall(vexpress_reset_init);
+builtin_platform_driver(vexpress_reset_driver);
diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile
index 103e2c93c342..446143241fe7 100644
--- a/drivers/soc/imx/Makefile
+++ b/drivers/soc/imx/Makefile
@@ -1,4 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
+ifeq ($(CONFIG_ARM),y)
+obj-$(CONFIG_ARCH_MXC) += soc-imx.o
+endif
obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o
obj-$(CONFIG_SOC_IMX8M) += soc-imx8m.o
diff --git a/drivers/soc/imx/soc-imx.c b/drivers/soc/imx/soc-imx.c
new file mode 100644
index 000000000000..fec3d672b606
--- /dev/null
+++ b/drivers/soc/imx/soc-imx.c
@@ -0,0 +1,192 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020 NXP
+ */
+
+#include <linux/mfd/syscon.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
+
+#include <soc/imx/cpu.h>
+#include <soc/imx/revision.h>
+
+#define OCOTP_UID_H 0x420
+#define OCOTP_UID_L 0x410
+
+#define OCOTP_ULP_UID_1 0x4b0
+#define OCOTP_ULP_UID_2 0x4c0
+#define OCOTP_ULP_UID_3 0x4d0
+#define OCOTP_ULP_UID_4 0x4e0
+
+static int __init imx_soc_device_init(void)
+{
+ struct soc_device_attribute *soc_dev_attr;
+ const char *ocotp_compat = NULL;
+ struct soc_device *soc_dev;
+ struct device_node *root;
+ struct regmap *ocotp = NULL;
+ const char *soc_id;
+ u64 soc_uid = 0;
+ u32 val;
+ int ret;
+
+ soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+ if (!soc_dev_attr)
+ return -ENOMEM;
+
+ soc_dev_attr->family = "Freescale i.MX";
+
+ root = of_find_node_by_path("/");
+ ret = of_property_read_string(root, "model", &soc_dev_attr->machine);
+ of_node_put(root);
+ if (ret)
+ goto free_soc;
+
+ switch (__mxc_cpu_type) {
+ case MXC_CPU_MX1:
+ soc_id = "i.MX1";
+ break;
+ case MXC_CPU_MX21:
+ soc_id = "i.MX21";
+ break;
+ case MXC_CPU_MX25:
+ soc_id = "i.MX25";
+ break;
+ case MXC_CPU_MX27:
+ soc_id = "i.MX27";
+ break;
+ case MXC_CPU_MX31:
+ soc_id = "i.MX31";
+ break;
+ case MXC_CPU_MX35:
+ soc_id = "i.MX35";
+ break;
+ case MXC_CPU_MX51:
+ soc_id = "i.MX51";
+ break;
+ case MXC_CPU_MX53:
+ soc_id = "i.MX53";
+ break;
+ case MXC_CPU_IMX6SL:
+ ocotp_compat = "fsl,imx6sl-ocotp";
+ soc_id = "i.MX6SL";
+ break;
+ case MXC_CPU_IMX6DL:
+ ocotp_compat = "fsl,imx6q-ocotp";
+ soc_id = "i.MX6DL";
+ break;
+ case MXC_CPU_IMX6SX:
+ ocotp_compat = "fsl,imx6sx-ocotp";
+ soc_id = "i.MX6SX";
+ break;
+ case MXC_CPU_IMX6Q:
+ ocotp_compat = "fsl,imx6q-ocotp";
+ soc_id = "i.MX6Q";
+ break;
+ case MXC_CPU_IMX6UL:
+ ocotp_compat = "fsl,imx6ul-ocotp";
+ soc_id = "i.MX6UL";
+ break;
+ case MXC_CPU_IMX6ULL:
+ ocotp_compat = "fsl,imx6ull-ocotp";
+ soc_id = "i.MX6ULL";
+ break;
+ case MXC_CPU_IMX6ULZ:
+ ocotp_compat = "fsl,imx6ull-ocotp";
+ soc_id = "i.MX6ULZ";
+ break;
+ case MXC_CPU_IMX6SLL:
+ ocotp_compat = "fsl,imx6sll-ocotp";
+ soc_id = "i.MX6SLL";
+ break;
+ case MXC_CPU_IMX7D:
+ ocotp_compat = "fsl,imx7d-ocotp";
+ soc_id = "i.MX7D";
+ break;
+ case MXC_CPU_IMX7ULP:
+ ocotp_compat = "fsl,imx7ulp-ocotp";
+ soc_id = "i.MX7ULP";
+ break;
+ case MXC_CPU_VF500:
+ ocotp_compat = "fsl,vf610-ocotp";
+ soc_id = "VF500";
+ break;
+ case MXC_CPU_VF510:
+ ocotp_compat = "fsl,vf610-ocotp";
+ soc_id = "VF510";
+ break;
+ case MXC_CPU_VF600:
+ ocotp_compat = "fsl,vf610-ocotp";
+ soc_id = "VF600";
+ break;
+ case MXC_CPU_VF610:
+ ocotp_compat = "fsl,vf610-ocotp";
+ soc_id = "VF610";
+ break;
+ default:
+ soc_id = "Unknown";
+ }
+ soc_dev_attr->soc_id = soc_id;
+
+ if (ocotp_compat) {
+ ocotp = syscon_regmap_lookup_by_compatible(ocotp_compat);
+ if (IS_ERR(ocotp))
+ pr_err("%s: failed to find %s regmap!\n", __func__, ocotp_compat);
+ }
+
+ if (!IS_ERR_OR_NULL(ocotp)) {
+ if (__mxc_cpu_type == MXC_CPU_IMX7ULP) {
+ regmap_read(ocotp, OCOTP_ULP_UID_4, &val);
+ soc_uid = val & 0xffff;
+ regmap_read(ocotp, OCOTP_ULP_UID_3, &val);
+ soc_uid <<= 16;
+ soc_uid |= val & 0xffff;
+ regmap_read(ocotp, OCOTP_ULP_UID_2, &val);
+ soc_uid <<= 16;
+ soc_uid |= val & 0xffff;
+ regmap_read(ocotp, OCOTP_ULP_UID_1, &val);
+ soc_uid <<= 16;
+ soc_uid |= val & 0xffff;
+ } else {
+ regmap_read(ocotp, OCOTP_UID_H, &val);
+ soc_uid = val;
+ regmap_read(ocotp, OCOTP_UID_L, &val);
+ soc_uid <<= 32;
+ soc_uid |= val;
+ }
+ }
+
+ soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d.%d",
+ (imx_get_soc_revision() >> 4) & 0xf,
+ imx_get_soc_revision() & 0xf);
+ if (!soc_dev_attr->revision) {
+ ret = -ENOMEM;
+ goto free_soc;
+ }
+
+ soc_dev_attr->serial_number = kasprintf(GFP_KERNEL, "%016llX", soc_uid);
+ if (!soc_dev_attr->serial_number) {
+ ret = -ENOMEM;
+ goto free_rev;
+ }
+
+ soc_dev = soc_device_register(soc_dev_attr);
+ if (IS_ERR(soc_dev)) {
+ ret = PTR_ERR(soc_dev);
+ goto free_serial_number;
+ }
+
+ return 0;
+
+free_serial_number:
+ kfree(soc_dev_attr->serial_number);
+free_rev:
+ kfree(soc_dev_attr->revision);
+free_soc:
+ kfree(soc_dev_attr);
+ return ret;
+}
+device_initcall(imx_soc_device_init);
generated by cgit v1.2.3-58-ga151 (git 2.39.0) at 2024-12-27 12:42:35 +0000