| Mark.Zhan | a240a46 | 2006-05-06 17:04:20 +0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 1997 Ralf Baechle |
| 7 | */ |
| 8 | #include <linux/sched.h> |
| 9 | #include <linux/mm.h> |
| 10 | #include <asm/io.h> |
| 11 | #include <asm/pgtable.h> |
| 12 | #include <asm/processor.h> |
| 13 | #include <asm/reboot.h> |
| 14 | #include <asm/system.h> |
| 15 | #include <asm/cacheflush.h> |
| 16 | |
| 17 | void wrppmc_machine_restart(char *command) |
| 18 | { |
| 19 | /* |
| 20 | * Ouch, we're still alive ... This time we take the silver bullet ... |
| 21 | * ... and find that we leave the hardware in a state in which the |
| 22 | * kernel in the flush locks up somewhen during of after the PCI |
| 23 | * detection stuff. |
| 24 | */ |
| 25 | local_irq_disable(); |
| 26 | set_c0_status(ST0_BEV | ST0_ERL); |
| 27 | change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); |
| 28 | flush_cache_all(); |
| 29 | write_c0_wired(0); |
| 30 | __asm__ __volatile__("jr\t%0"::"r"(0xbfc00000)); |
| 31 | } |
| 32 | |
| 33 | void wrppmc_machine_halt(void) |
| 34 | { |
| 35 | local_irq_disable(); |
| 36 | |
| 37 | printk(KERN_NOTICE "You can safely turn off the power\n"); |
| 38 | while (1) { |
| 39 | __asm__( |
| 40 | ".set\tmips3\n\t" |
| 41 | "wait\n\t" |
| 42 | ".set\tmips0" |
| 43 | ); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | void wrppmc_machine_power_off(void) |
| 48 | { |
| 49 | wrppmc_machine_halt(); |
| 50 | } |