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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/mips/mti-malta/malta-reset.c
Initial import
Diffstat (limited to 'arch/mips/mti-malta/malta-reset.c')
-rw-r--r--arch/mips/mti-malta/malta-reset.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-reset.c b/arch/mips/mti-malta/malta-reset.c
new file mode 100644
index 000000000..2fd2cc2c5
--- /dev/null
+++ b/arch/mips/mti-malta/malta-reset.c
@@ -0,0 +1,47 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved.
+ */
+#include <linux/io.h>
+#include <linux/pm.h>
+
+#include <asm/reboot.h>
+#include <asm/mach-malta/malta-pm.h>
+
+#define SOFTRES_REG 0x1f000500
+#define GORESET 0x42
+
+static void mips_machine_restart(char *command)
+{
+ unsigned int __iomem *softres_reg =
+ ioremap(SOFTRES_REG, sizeof(unsigned int));
+
+ __raw_writel(GORESET, softres_reg);
+}
+
+static void mips_machine_halt(void)
+{
+ while (true);
+}
+
+static void mips_machine_power_off(void)
+{
+ mips_pm_suspend(PIIX4_FUNC3IO_PMCNTRL_SUS_TYP_SOFF);
+
+ pr_info("Failed to power down, resetting\n");
+ mips_machine_restart(NULL);
+}
+
+static int __init mips_reboot_setup(void)
+{
+ _machine_restart = mips_machine_restart;
+ _machine_halt = mips_machine_halt;
+ pm_power_off = mips_machine_power_off;
+
+ return 0;
+}
+arch_initcall(mips_reboot_setup);