diff options
Diffstat (limited to 'arch/mips/lemote/lm2e/reset.c')
| -rw-r--r-- | arch/mips/lemote/lm2e/reset.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/mips/lemote/lm2e/reset.c b/arch/mips/lemote/lm2e/reset.c new file mode 100644 index 000000000000..099387a3827a --- /dev/null +++ b/arch/mips/lemote/lm2e/reset.c @@ -0,0 +1,41 @@ +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * Copyright (C) 2007 Lemote, Inc. & Institute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + */ +#include <linux/pm.h> + +#include <asm/reboot.h> + +static void loongson2e_restart(char *command) +{ +#ifdef CONFIG_32BIT + *(unsigned long *)0xbfe00104 &= ~(1 << 2); + *(unsigned long *)0xbfe00104 |= (1 << 2); +#else + *(unsigned long *)0xffffffffbfe00104 &= ~(1 << 2); + *(unsigned long *)0xffffffffbfe00104 |= (1 << 2); +#endif + __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000)); +} + +static void loongson2e_halt(void) +{ + while (1) ; +} + +static void loongson2e_power_off(void) +{ + loongson2e_halt(); +} + +void mips_reboot_setup(void) +{ + _machine_restart = loongson2e_restart; + _machine_halt = loongson2e_halt; + pm_power_off = loongson2e_power_off; +} |