rtl8211F_led_control

hc

2024-05-11 297b60346df8beafee954a0fd7c2d64f33f3b9bc

 kernel/arch/microblaze/kernel/reset.c
..
..
@@ -8,83 +8,9 @@
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  */
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 #include <linux/init.h>
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+#include <linux/delay.h>
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 #include <linux/of_platform.h>
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-
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-/* Trigger specific functions */
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-#ifdef CONFIG_GPIOLIB
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-
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-#include <linux/of_gpio.h>
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-
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-static int handle; /* reset pin handle */
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-static unsigned int reset_val;
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-
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-static int of_platform_reset_gpio_probe(void)
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-{
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-	int ret;
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-	handle = of_get_named_gpio(of_find_node_by_path("/"),
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-				   "hard-reset-gpios", 0);
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-
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-	if (!gpio_is_valid(handle)) {
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-		pr_info("Skipping unavailable RESET gpio %d (%s)\n",
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-				handle, "reset");
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-		return -ENODEV;
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-	}
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-
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-	ret = gpio_request(handle, "reset");
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-	if (ret < 0) {
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-		pr_info("GPIO pin is already allocated\n");
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-		return ret;
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-	}
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-
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-	/* get current setup value */
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-	reset_val = gpio_get_value(handle);
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-	/* FIXME maybe worth to perform any action */
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-	pr_debug("Reset: Gpio output state: 0x%x\n", reset_val);
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-
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-	/* Setup GPIO as output */
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-	ret = gpio_direction_output(handle, 0);
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-	if (ret < 0)
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-		goto err;
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-
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-	/* Setup output direction */
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-	gpio_set_value(handle, 0);
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-
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-	pr_info("RESET: Registered gpio device: %d, current val: %d\n",
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-							handle, reset_val);
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-	return 0;
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-err:
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-	gpio_free(handle);
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-	return ret;
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-}
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-device_initcall(of_platform_reset_gpio_probe);
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-
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-
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-static void gpio_system_reset(void)
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-{
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-	if (gpio_is_valid(handle))
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-		gpio_set_value(handle, 1 - reset_val);
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-	else
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-		pr_notice("Reset GPIO unavailable - halting!\n");
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-}
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-#else
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-static void gpio_system_reset(void)
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-{
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-	pr_notice("No reset GPIO present - halting!\n");
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-}
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-
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-void of_platform_reset_gpio_probe(void)
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-{
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-	return;
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-}
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-#endif
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-
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-void machine_restart(char *cmd)
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-{
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-	pr_notice("Machine restart...\n");
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-	gpio_system_reset();
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-	while (1)
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-		;
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-}
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+#include <linux/reboot.h>
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 void machine_shutdown(void)
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 {
..
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@@ -106,3 +32,12 @@
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 	while (1)
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 		;
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 }
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+
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+void machine_restart(char *cmd)
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+{
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+	do_kernel_restart(cmd);
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+	/* Give the restart hook 1 s to take us down */
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+	mdelay(1000);
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+	pr_emerg("Reboot failed -- System halted\n");
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+	while (1);
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+}