diff options
author | Ralf Baechle <ralf@linux-mips.org> | 2001-02-05 01:33:01 +0000 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 2001-02-05 01:33:01 +0000 |
commit | 222ce6477d35d0b51fe9d5fb16ada90ac3341500 (patch) | |
tree | 33dc535dde84fab2a5cd175e0bfda393d5970f42 /arch/mips/gt64120/momenco_ocelot/reset.c | |
parent | 41f766e193858f7b5d1f9e81f50f392c1bd40f32 (diff) |
Start of an attempt to unify support for GT64120 based boards.
Diffstat (limited to 'arch/mips/gt64120/momenco_ocelot/reset.c')
-rw-r--r-- | arch/mips/gt64120/momenco_ocelot/reset.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/mips/gt64120/momenco_ocelot/reset.c b/arch/mips/gt64120/momenco_ocelot/reset.c new file mode 100644 index 000000000..0f4c7fee6 --- /dev/null +++ b/arch/mips/gt64120/momenco_ocelot/reset.c @@ -0,0 +1,48 @@ +/* + * 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) 1997, 2001 Ralf Baechle + * Copyright 2001 MontaVista Software Inc. + * Author: jsun@mvista.com or jsun@junsun.net + */ +#include <linux/sched.h> +#include <linux/mm.h> +#include <asm/io.h> +#include <asm/pgtable.h> +#include <asm/processor.h> +#include <asm/reboot.h> +#include <asm/system.h> + +void momenco_ocelot_restart(char *command) +{ + *(volatile char *) 0xbc000000 = 0x0f; + + /* + * Ouch, we're still alive ... This time we take the silver bullet ... + * ... and find that we leave the hardware in a state in which the + * kernel in the flush locks up somewhen during of after the PCI + * detection stuff. + */ + set_cp0_status((ST0_BEV | ST0_ERL), (ST0_BEV | ST0_ERL)); + set_cp0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); + flush_cache_all(); + write_32bit_cp0_register(CP0_WIRED, 0); + __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000)); +} + +void momenco_ocelot_halt(void) +{ + printk(KERN_NOTICE "\n** You can safely turn off the power\n"); + while (1) + __asm__(".set\tmips3\n\t" + "wait\n\t" + ".set\tmips0"); +} + +void momenco_ocelot_power_off(void) +{ + momenco_ocelot_halt(); +} |