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authorGuenter Roeck <linux@roeck-us.net>2015-01-25 12:30:42 -0800
committerSebastian Reichel <sre@kernel.org>2015-01-25 22:13:07 +0100
commitb2b3a8b934e649d0f0659584f2186602dbb391b5 (patch)
treec827dc76906081bdc13e72b4f14855f914c78122 /drivers/power
parent481ff6ff967fefdbfb967f7251e40c22a312d244 (diff)
power/reset: Remove sun6i reboot driver
sun6i restart is now handled by its watchdog driver directly, so this driver is no longer needed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/reset/Kconfig6
-rw-r--r--drivers/power/reset/Makefile1
-rw-r--r--drivers/power/reset/sun6i-reboot.c85
3 files changed, 0 insertions, 92 deletions
diff --git a/drivers/power/reset/Kconfig b/drivers/power/reset/Kconfig
index bf5acb3edd85..4cb5744cd259 100644
--- a/drivers/power/reset/Kconfig
+++ b/drivers/power/reset/Kconfig
@@ -109,12 +109,6 @@ config POWER_RESET_RESTART
Instead they restart, and u-boot holds the SoC until the
user presses a key. u-boot then boots into Linux.
-config POWER_RESET_SUN6I
- bool "Allwinner A31 SoC reset driver"
- depends on ARCH_SUNXI
- help
- Reboot support for the Allwinner A31 SoCs.
-
config POWER_RESET_ST
bool "ST restart power-off driver"
depends on ARCH_STI
diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
index 1631652009ac..11de15bae52e 100644
--- a/drivers/power/reset/Makefile
+++ b/drivers/power/reset/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_POWER_RESET_MSM) += msm-poweroff.o
obj-$(CONFIG_POWER_RESET_LTC2952) += ltc2952-poweroff.o
obj-$(CONFIG_POWER_RESET_QNAP) += qnap-poweroff.o
obj-$(CONFIG_POWER_RESET_RESTART) += restart-poweroff.o
-obj-$(CONFIG_POWER_RESET_SUN6I) += sun6i-reboot.o
obj-$(CONFIG_POWER_RESET_ST) += st-poweroff.o
obj-$(CONFIG_POWER_RESET_VERSATILE) += arm-versatile-reboot.o
obj-$(CONFIG_POWER_RESET_VEXPRESS) += vexpress-poweroff.o
diff --git a/drivers/power/reset/sun6i-reboot.c b/drivers/power/reset/sun6i-reboot.c
deleted file mode 100644
index af2cd7ff2fe8..000000000000
--- a/drivers/power/reset/sun6i-reboot.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Allwinner A31 SoCs reset code
- *
- * Copyright (C) 2012-2014 Maxime Ripard
- *
- * Maxime Ripard <maxime.ripard@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/platform_device.h>
-#include <linux/reboot.h>
-
-#include <asm/system_misc.h>
-
-#define SUN6I_WATCHDOG1_IRQ_REG 0x00
-#define SUN6I_WATCHDOG1_CTRL_REG 0x10
-#define SUN6I_WATCHDOG1_CTRL_RESTART BIT(0)
-#define SUN6I_WATCHDOG1_CONFIG_REG 0x14
-#define SUN6I_WATCHDOG1_CONFIG_RESTART BIT(0)
-#define SUN6I_WATCHDOG1_CONFIG_IRQ BIT(1)
-#define SUN6I_WATCHDOG1_MODE_REG 0x18
-#define SUN6I_WATCHDOG1_MODE_ENABLE BIT(0)
-
-static void __iomem *wdt_base;
-
-static void sun6i_wdt_restart(enum reboot_mode mode, const char *cmd)
-{
- if (!wdt_base)
- return;
-
- /* Disable interrupts */
- writel(0, wdt_base + SUN6I_WATCHDOG1_IRQ_REG);
-
- /* We want to disable the IRQ and just reset the whole system */
- writel(SUN6I_WATCHDOG1_CONFIG_RESTART,
- wdt_base + SUN6I_WATCHDOG1_CONFIG_REG);
-
- /* Enable timer. The default and lowest interval value is 0.5s */
- writel(SUN6I_WATCHDOG1_MODE_ENABLE,
- wdt_base + SUN6I_WATCHDOG1_MODE_REG);
-
- /* Restart the watchdog. */
- writel(SUN6I_WATCHDOG1_CTRL_RESTART,
- wdt_base + SUN6I_WATCHDOG1_CTRL_REG);
-
- while (1) {
- mdelay(5);
- writel(SUN6I_WATCHDOG1_MODE_ENABLE,
- wdt_base + SUN6I_WATCHDOG1_MODE_REG);
- }
-}
-
-static int sun6i_reboot_probe(struct platform_device *pdev)
-{
- wdt_base = of_iomap(pdev->dev.of_node, 0);
- if (!wdt_base) {
- WARN(1, "failed to map watchdog base address");
- return -ENODEV;
- }
-
- arm_pm_restart = sun6i_wdt_restart;
-
- return 0;
-}
-
-static struct of_device_id sun6i_reboot_of_match[] = {
- { .compatible = "allwinner,sun6i-a31-wdt" },
- {}
-};
-
-static struct platform_driver sun6i_reboot_driver = {
- .probe = sun6i_reboot_probe,
- .driver = {
- .name = "sun6i-reboot",
- .of_match_table = sun6i_reboot_of_match,
- },
-};
-module_platform_driver(sun6i_reboot_driver);