diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2005-02-21 19:18:36 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2005-10-29 22:30:42 +0400 |
| commit | c4ed38a0c6e2e5c4906296758f816ee71373792f (patch) | |
| tree | 65ebab9ca61ea6d03109c53acd2989b626dce52a /arch/mips/cobalt/reset.c | |
| parent | 049b13c358f0187cf3c5003d5fb9848dbcb28bc3 (diff) | |
| download | linux-c4ed38a0c6e2e5c4906296758f816ee71373792f.tar.xz | |
Resurrect Cobalt support for 2.6.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/cobalt/reset.c')
| -rw-r--r-- | arch/mips/cobalt/reset.c | 59 |
1 files changed, 28 insertions, 31 deletions
diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c index 084c8e59f42c..805a0e88507b 100644 --- a/arch/mips/cobalt/reset.c +++ b/arch/mips/cobalt/reset.c @@ -16,48 +16,45 @@ #include <asm/reboot.h> #include <asm/system.h> #include <asm/mipsregs.h> +#include <asm/cobalt/cobalt.h> -void cobalt_machine_restart(char *command) +void cobalt_machine_halt(void) { - *(volatile char *)0xbc000000 = 0x0f; + int state, last, diff; + unsigned long mark; /* - * 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. + * turn off bar on Qube, flash power off LED on RaQ (0.5Hz) + * + * restart if ENTER and SELECT are pressed */ - set_c0_status(ST0_BEV | ST0_ERL); - change_c0_config(CONF_CM_CMASK, CONF_CM_UNCACHED); - flush_cache_all(); - write_c0_wired(0); - __asm__ __volatile__( - "jr\t%0" - : - : "r" (0xbfc00000)); -} -extern int led_state; -#define kLED 0xBC000000 -#define LEDSet(x) (*(volatile unsigned char *) kLED) = (( unsigned char)x) + last = COBALT_KEY_PORT; -void cobalt_machine_halt(void) -{ - int mark; + for (state = 0;;) { + + state ^= COBALT_LED_POWER_OFF; + COBALT_LED_PORT = state; + + diff = COBALT_KEY_PORT ^ last; + last ^= diff; - /* Blink our cute? little LED (number 3)... */ - while (1) { - led_state = led_state | ( 1 << 3 ); - LEDSet(led_state); - mark = jiffies; - while (jiffies<(mark+HZ)); - led_state = led_state & ~( 1 << 3 ); - LEDSet(led_state); - mark = jiffies; - while (jiffies<(mark+HZ)); + if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT))) + COBALT_LED_PORT = COBALT_LED_RESET; + + for (mark = jiffies; jiffies - mark < HZ;) + ; } } +void cobalt_machine_restart(char *command) +{ + COBALT_LED_PORT = COBALT_LED_RESET; + + /* we should never get here */ + cobalt_machine_halt(); +} + /* * This triggers the luser mode device driver for the power switch ;-) */ |