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authorRalf Baechle <ralf@linux-mips.org>2005-02-21 16:18:36 +0000
committerRalf Baechle <ralf@linux-mips.org>2005-10-29 19:30:42 +0100
commitc4ed38a0c6e2e5c4906296758f816ee71373792f (patch)
tree65ebab9ca61ea6d03109c53acd2989b626dce52a /arch/mips/cobalt/reset.c
parent049b13c358f0187cf3c5003d5fb9848dbcb28bc3 (diff)
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.c59
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 ;-)
*/