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[PATCH V2 03/10] MIPS: ralink: adds reset code

To: Ralf Baechle <ralf@linux-mips.org>
Subject: [PATCH V2 03/10] MIPS: ralink: adds reset code
From: John Crispin <blogic@openwrt.org>
Date: Sun, 27 Jan 2013 19:03:55 +0100
Cc: linux-mips@linux-mips.org, John Crispin <blogic@openwrt.org>
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Resetting these SoCs requires no real magic. The code is straight forward.

Signed-off-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/ralink/reset.c |   44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 arch/mips/ralink/reset.c

diff --git a/arch/mips/ralink/reset.c b/arch/mips/ralink/reset.c
new file mode 100644
index 0000000..22120e5
--- /dev/null
+++ b/arch/mips/ralink/reset.c
@@ -0,0 +1,44 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/pm.h>
+#include <linux/io.h>
+
+#include <asm/reboot.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+/* Reset Control */
+#define SYSC_REG_RESET_CTRL     0x034
+#define RSTCTL_RESET_SYSTEM     BIT(0)
+
+static void ralink_restart(char *command)
+{
+       local_irq_disable();
+       rt_sysc_w32(RSTCTL_RESET_SYSTEM, SYSC_REG_RESET_CTRL);
+       unreachable();
+}
+
+static void ralink_halt(void)
+{
+       local_irq_disable();
+       unreachable();
+}
+
+static int __init mips_reboot_setup(void)
+{
+       _machine_restart = ralink_restart;
+       _machine_halt = ralink_halt;
+       pm_power_off = ralink_halt;
+
+       return 0;
+}
+
+arch_initcall(mips_reboot_setup);
-- 
1.7.10.4


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