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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-11 22:21:23 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-11 22:21:23 -0400
commitdd6d1844af33acb4edd0a40b1770d091a22c94be (patch)
treee6bd3549919773a13b770324a4dddb51b194b452 /arch/mips/cobalt/reset.c
parent19f71153b9be219756c6b2757921433a69b7975c (diff)
parentaaf76a3245c02faba51c96b9a340c14d6bb0dcc0 (diff)
Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (80 commits) [MIPS] tlbex.c: Cleanup __init usage. [MIPS] WRPPMC serial support move to platform device [MIPS] R1: Fix hazard barriers to make kernels work on R2 also. [MIPS] VPE: reimplement ELF loader. [MIPS] cleanup WRPPMC include files [MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type. [MIPS] SMP: Use ISO C struct initializer for local structs. [MIPS] SMP: Kill useless casts. [MIPS] Kill num_online_cpus() loops. [MIPS] SMP: Implement smp_call_function_mask(). [MIPS] Make facility to convert CPU types to strings generally available. [MIPS] Convert list of CPU types from #define to enum. [MIPS] Optimize get_unaligned / put_unaligned implementations. [MIPS] checkfiles: Fix "need space after that ','" errors. [MIPS] Fix "no space between function name and open parenthesis" warnings. [MIPS] Allow hardwiring of the CPU type to a single type for optimization. [MIPS] tlbex: Size optimize code by declaring a few functions inline. [MIPS] pg-r4k.c: Dump the generated code [MIPS] Cobalt: Remove cobalt_machine_power_off() [MIPS] Cobalt: Move reset port definition to arch/mips/cobalt/reset.c ...
Diffstat (limited to 'arch/mips/cobalt/reset.c')
-rw-r--r--arch/mips/cobalt/reset.c39
1 files changed, 20 insertions, 19 deletions
diff --git a/arch/mips/cobalt/reset.c b/arch/mips/cobalt/reset.c
index 43cca21fdbc0..71eb4ccc4bc1 100644
--- a/arch/mips/cobalt/reset.c
+++ b/arch/mips/cobalt/reset.c
@@ -8,36 +8,46 @@
8 * Copyright (C) 1995, 1996, 1997 by Ralf Baechle 8 * Copyright (C) 1995, 1996, 1997 by Ralf Baechle
9 * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv) 9 * Copyright (C) 2001 by Liam Davies (ldavies@agile.tv)
10 */ 10 */
11#include <linux/init.h>
12#include <linux/io.h>
11#include <linux/jiffies.h> 13#include <linux/jiffies.h>
12 14#include <linux/leds.h>
13#include <asm/io.h>
14#include <asm/reboot.h>
15 15
16#include <cobalt.h> 16#include <cobalt.h>
17 17
18#define RESET_PORT ((void __iomem *)CKSEG1ADDR(0x1c000000))
19#define RESET 0x0f
20
21DEFINE_LED_TRIGGER(power_off_led_trigger);
22
23static int __init ledtrig_power_off_init(void)
24{
25 led_trigger_register_simple("power-off", &power_off_led_trigger);
26 return 0;
27}
28device_initcall(ledtrig_power_off_init);
29
18void cobalt_machine_halt(void) 30void cobalt_machine_halt(void)
19{ 31{
20 int state, last, diff; 32 int state, last, diff;
21 unsigned long mark; 33 unsigned long mark;
22 34
23 /* 35 /*
24 * turn off bar on Qube, flash power off LED on RaQ (0.5Hz) 36 * turn on power off LED on RaQ
25 * 37 *
26 * restart if ENTER and SELECT are pressed 38 * restart if ENTER and SELECT are pressed
27 */ 39 */
28 40
29 last = COBALT_KEY_PORT; 41 last = COBALT_KEY_PORT;
30 42
31 for (state = 0;;) { 43 led_trigger_event(power_off_led_trigger, LED_FULL);
32
33 state ^= COBALT_LED_POWER_OFF;
34 COBALT_LED_PORT = state;
35 44
45 for (state = 0;;) {
36 diff = COBALT_KEY_PORT ^ last; 46 diff = COBALT_KEY_PORT ^ last;
37 last ^= diff; 47 last ^= diff;
38 48
39 if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT))) 49 if((diff & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)) && !(~last & (COBALT_KEY_ENTER | COBALT_KEY_SELECT)))
40 COBALT_LED_PORT = COBALT_LED_RESET; 50 writeb(RESET, RESET_PORT);
41 51
42 for (mark = jiffies; jiffies - mark < HZ;) 52 for (mark = jiffies; jiffies - mark < HZ;)
43 ; 53 ;
@@ -46,17 +56,8 @@ void cobalt_machine_halt(void)
46 56
47void cobalt_machine_restart(char *command) 57void cobalt_machine_restart(char *command)
48{ 58{
49 COBALT_LED_PORT = COBALT_LED_RESET; 59 writeb(RESET, RESET_PORT);
50 60
51 /* we should never get here */ 61 /* we should never get here */
52 cobalt_machine_halt(); 62 cobalt_machine_halt();
53} 63}
54
55/*
56 * This triggers the luser mode device driver for the power switch ;-)
57 */
58void cobalt_machine_power_off(void)
59{
60 printk("You can switch the machine off now.\n");
61 cobalt_machine_halt();
62}