select NO_IOPORT
select PLAT_VERSATILE
select PLAT_VERSATILE_CLCD
+ select POWER_RESET
+ select POWER_RESET_VEXPRESS
+ select POWER_SUPPLY
select REGULATOR_FIXED_VOLTAGE if REGULATOR
select VEXPRESS_CONFIG
help
ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \
-I$(srctree)/arch/arm/plat-versatile/include
-obj-y := v2m.o reset.o
+obj-y := v2m.o
obj-$(CONFIG_ARCH_VEXPRESS_CA9X4) += ct-ca9x4.o
obj-$(CONFIG_SMP) += platsmp.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
+++ /dev/null
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * Copyright (C) 2012 ARM Limited
- */
-
-#include <linux/jiffies.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/stat.h>
-#include <linux/vexpress.h>
-
-static void vexpress_reset_do(struct device *dev, const char *what)
-{
- int err = -ENOENT;
- struct vexpress_config_func *func =
- vexpress_config_func_get_by_dev(dev);
-
- if (func) {
- unsigned long timeout;
-
- err = vexpress_config_write(func, 0, 0);
-
- timeout = jiffies + HZ;
- while (time_before(jiffies, timeout))
- cpu_relax();
- }
-
- dev_emerg(dev, "Unable to %s (%d)\n", what, err);
-}
-
-static struct device *vexpress_power_off_device;
-
-void vexpress_power_off(void)
-{
- vexpress_reset_do(vexpress_power_off_device, "power off");
-}
-
-static struct device *vexpress_restart_device;
-
-void vexpress_restart(char str, const char *cmd)
-{
- vexpress_reset_do(vexpress_restart_device, "restart");
-}
-
-static ssize_t vexpress_reset_active_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- return sprintf(buf, "%d\n", vexpress_restart_device == dev);
-}
-
-static ssize_t vexpress_reset_active_store(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
-{
- long value;
- int err = kstrtol(buf, 0, &value);
-
- if (!err && value)
- vexpress_restart_device = dev;
-
- return err ? err : count;
-}
-
-DEVICE_ATTR(active, S_IRUGO | S_IWUSR, vexpress_reset_active_show,
- vexpress_reset_active_store);
-
-
-enum vexpress_reset_func { FUNC_RESET, FUNC_SHUTDOWN, FUNC_REBOOT };
-
-static struct of_device_id vexpress_reset_of_match[] = {
- {
- .compatible = "arm,vexpress-reset",
- .data = (void *)FUNC_RESET,
- }, {
- .compatible = "arm,vexpress-shutdown",
- .data = (void *)FUNC_SHUTDOWN
- }, {
- .compatible = "arm,vexpress-reboot",
- .data = (void *)FUNC_REBOOT
- },
- {}
-};
-
-static int vexpress_reset_probe(struct platform_device *pdev)
-{
- enum vexpress_reset_func func;
- const struct of_device_id *match =
- of_match_device(vexpress_reset_of_match, &pdev->dev);
-
- if (match)
- func = (enum vexpress_reset_func)match->data;
- else
- func = pdev->id_entry->driver_data;
-
- switch (func) {
- case FUNC_SHUTDOWN:
- vexpress_power_off_device = &pdev->dev;
- break;
- case FUNC_RESET:
- if (!vexpress_restart_device)
- vexpress_restart_device = &pdev->dev;
- device_create_file(&pdev->dev, &dev_attr_active);
- break;
- case FUNC_REBOOT:
- vexpress_restart_device = &pdev->dev;
- device_create_file(&pdev->dev, &dev_attr_active);
- break;
- };
-
- return 0;
-}
-
-static const struct platform_device_id vexpress_reset_id_table[] = {
- { .name = "vexpress-reset", .driver_data = FUNC_RESET, },
- { .name = "vexpress-shutdown", .driver_data = FUNC_SHUTDOWN, },
- { .name = "vexpress-reboot", .driver_data = FUNC_REBOOT, },
- {}
-};
-
-static struct platform_driver vexpress_reset_driver = {
- .probe = vexpress_reset_probe,
- .driver = {
- .name = "vexpress-reset",
- .of_match_table = vexpress_reset_of_match,
- },
- .id_table = vexpress_reset_id_table,
-};
-
-static int __init vexpress_reset_init(void)
-{
- return platform_driver_register(&vexpress_reset_driver);
-}
-device_initcall(vexpress_reset_init);
Some boards don't actually have the ability to power off.
Instead they restart, and u-boot holds the SoC until the
user presses a key. u-boot then boots into Linux.
+
+config POWER_RESET_VEXPRESS
+ bool
+ depends on POWER_RESET
+ help
+ Power off and reset support for the ARM Ltd. Versatile
+ Express boards.
obj-$(CONFIG_POWER_RESET_GPIO) += gpio-poweroff.o
obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o
-obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o
\ No newline at end of file
+obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o
+obj-$(CONFIG_POWER_RESET_VEXPRESS) += vexpress-poweroff.o
--- /dev/null
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#include <linux/jiffies.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/stat.h>
+#include <linux/vexpress.h>
+
+static void vexpress_reset_do(struct device *dev, const char *what)
+{
+ int err = -ENOENT;
+ struct vexpress_config_func *func =
+ vexpress_config_func_get_by_dev(dev);
+
+ if (func) {
+ unsigned long timeout;
+
+ err = vexpress_config_write(func, 0, 0);
+
+ timeout = jiffies + HZ;
+ while (time_before(jiffies, timeout))
+ cpu_relax();
+ }
+
+ dev_emerg(dev, "Unable to %s (%d)\n", what, err);
+}
+
+static struct device *vexpress_power_off_device;
+
+void vexpress_power_off(void)
+{
+ vexpress_reset_do(vexpress_power_off_device, "power off");
+}
+
+static struct device *vexpress_restart_device;
+
+void vexpress_restart(char str, const char *cmd)
+{
+ vexpress_reset_do(vexpress_restart_device, "restart");
+}
+
+static ssize_t vexpress_reset_active_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%d\n", vexpress_restart_device == dev);
+}
+
+static ssize_t vexpress_reset_active_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ long value;
+ int err = kstrtol(buf, 0, &value);
+
+ if (!err && value)
+ vexpress_restart_device = dev;
+
+ return err ? err : count;
+}
+
+DEVICE_ATTR(active, S_IRUGO | S_IWUSR, vexpress_reset_active_show,
+ vexpress_reset_active_store);
+
+
+enum vexpress_reset_func { FUNC_RESET, FUNC_SHUTDOWN, FUNC_REBOOT };
+
+static struct of_device_id vexpress_reset_of_match[] = {
+ {
+ .compatible = "arm,vexpress-reset",
+ .data = (void *)FUNC_RESET,
+ }, {
+ .compatible = "arm,vexpress-shutdown",
+ .data = (void *)FUNC_SHUTDOWN
+ }, {
+ .compatible = "arm,vexpress-reboot",
+ .data = (void *)FUNC_REBOOT
+ },
+ {}
+};
+
+static int vexpress_reset_probe(struct platform_device *pdev)
+{
+ enum vexpress_reset_func func;
+ const struct of_device_id *match =
+ of_match_device(vexpress_reset_of_match, &pdev->dev);
+
+ if (match)
+ func = (enum vexpress_reset_func)match->data;
+ else
+ func = pdev->id_entry->driver_data;
+
+ switch (func) {
+ case FUNC_SHUTDOWN:
+ vexpress_power_off_device = &pdev->dev;
+ break;
+ case FUNC_RESET:
+ if (!vexpress_restart_device)
+ vexpress_restart_device = &pdev->dev;
+ device_create_file(&pdev->dev, &dev_attr_active);
+ break;
+ case FUNC_REBOOT:
+ vexpress_restart_device = &pdev->dev;
+ device_create_file(&pdev->dev, &dev_attr_active);
+ break;
+ };
+
+ return 0;
+}
+
+static const struct platform_device_id vexpress_reset_id_table[] = {
+ { .name = "vexpress-reset", .driver_data = FUNC_RESET, },
+ { .name = "vexpress-shutdown", .driver_data = FUNC_SHUTDOWN, },
+ { .name = "vexpress-reboot", .driver_data = FUNC_REBOOT, },
+ {}
+};
+
+static struct platform_driver vexpress_reset_driver = {
+ .probe = vexpress_reset_probe,
+ .driver = {
+ .name = "vexpress-reset",
+ .of_match_table = vexpress_reset_of_match,
+ },
+ .id_table = vexpress_reset_id_table,
+};
+
+static int __init vexpress_reset_init(void)
+{
+ return platform_driver_register(&vexpress_reset_driver);
+}
+device_initcall(vexpress_reset_init);
projects / mirror_ubuntu-jammy-kernel.git / commitdiff