63 lines
1.6 KiB
Diff
63 lines
1.6 KiB
Diff
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From c06e836ada59fbc6d1109277e693e5b3e056ac12 Mon Sep 17 00:00:00 2001
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From: John Crispin <blogic@openwrt.org>
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Date: Sun, 20 Jan 2013 22:00:57 +0100
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Subject: [PATCH 03/14] MIPS: ralink: adds reset code
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Resetting these SoCs requires no real magic. The code is straight forward.
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Signed-off-by: John Crispin <blogic@openwrt.org>
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Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
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Patchwork: http://patchwork.linux-mips.org/patch/4891/
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---
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arch/mips/ralink/reset.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 44 insertions(+)
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create mode 100644 arch/mips/ralink/reset.c
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--- /dev/null
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+++ b/arch/mips/ralink/reset.c
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@@ -0,0 +1,44 @@
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+/*
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ *
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+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
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+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
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+ */
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+
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+#include <linux/pm.h>
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+#include <linux/io.h>
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+
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+#include <asm/reboot.h>
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+
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+#include <asm/mach-ralink/ralink_regs.h>
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+
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+/* Reset Control */
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+#define SYSC_REG_RESET_CTRL 0x034
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+#define RSTCTL_RESET_SYSTEM BIT(0)
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+
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+static void ralink_restart(char *command)
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+{
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+ local_irq_disable();
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+ rt_sysc_w32(RSTCTL_RESET_SYSTEM, SYSC_REG_RESET_CTRL);
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+ unreachable();
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+}
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+
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+static void ralink_halt(void)
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+{
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+ local_irq_disable();
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+ unreachable();
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+}
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+
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+static int __init mips_reboot_setup(void)
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+{
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+ _machine_restart = ralink_restart;
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+ _machine_halt = ralink_halt;
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+ pm_power_off = ralink_halt;
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+
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+ return 0;
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+}
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+
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+arch_initcall(mips_reboot_setup);
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