diff options
Diffstat (limited to 'arch/mips/mti-malta/malta-reset.c')
| -rw-r--r-- | arch/mips/mti-malta/malta-reset.c | 47 |
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); |