[MIPS] IP32: Enable PCI bridges
[linux-2.6.git] / arch / mips / qemu / q-reset.c
1
2 #include <asm/io.h>
3 #include <asm/reboot.h>
4 #include <asm/cacheflush.h>
5 #include <asm/qemu.h>
6
7 static void qemu_machine_restart(char *command)
8 {
9         volatile unsigned int *reg = (unsigned int *)QEMU_RESTART_REG;
10
11         set_c0_status(ST0_BEV | ST0_ERL);
12         change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED);
13         flush_cache_all();
14         write_c0_wired(0);
15         *reg = 42;
16         while (1)
17                 cpu_wait();
18 }
19
20 static void qemu_machine_halt(void)
21 {
22         volatile unsigned int *reg = (unsigned int *)QEMU_HALT_REG;
23
24         *reg = 42;
25         while (1)
26                 cpu_wait();
27 }
28
29 void qemu_reboot_setup(void)
30 {
31         _machine_restart = qemu_machine_restart;
32         _machine_halt = qemu_machine_halt;
33 }