diff options
Diffstat (limited to 'arch/mips/gt64120/wrppmc/reset.c')
-rw-r--r-- | arch/mips/gt64120/wrppmc/reset.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/mips/gt64120/wrppmc/reset.c b/arch/mips/gt64120/wrppmc/reset.c new file mode 100644 index 000000000000..b97039c6d3db --- /dev/null +++ b/arch/mips/gt64120/wrppmc/reset.c | |||
@@ -0,0 +1,50 @@ | |||
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 | } | ||