diff options
Diffstat (limited to 'arch/arm/mach-ixp4xx/nslu2-power.c')
-rw-r--r-- | arch/arm/mach-ixp4xx/nslu2-power.c | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/arch/arm/mach-ixp4xx/nslu2-power.c b/arch/arm/mach-ixp4xx/nslu2-power.c deleted file mode 100644 index 6f10dc208320..000000000000 --- a/arch/arm/mach-ixp4xx/nslu2-power.c +++ /dev/null | |||
@@ -1,91 +0,0 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-ixp4xx/nslu2-power.c | ||
3 | * | ||
4 | * NSLU2 Power/Reset driver | ||
5 | * | ||
6 | * Copyright (C) 2005 Tower Technologies | ||
7 | * | ||
8 | * based on nslu2-io.c | ||
9 | * Copyright (C) 2004 Karen Spearel | ||
10 | * | ||
11 | * Author: Alessandro Zummo <a.zummo@towertech.it> | ||
12 | * Maintainers: http://www.nslu2-linux.org/ | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License version 2 as | ||
16 | * published by the Free Software Foundation. | ||
17 | * | ||
18 | */ | ||
19 | |||
20 | #include <linux/module.h> | ||
21 | #include <linux/reboot.h> | ||
22 | #include <linux/irq.h> | ||
23 | #include <linux/interrupt.h> | ||
24 | |||
25 | #include <asm/mach-types.h> | ||
26 | |||
27 | static irqreturn_t nslu2_power_handler(int irq, void *dev_id) | ||
28 | { | ||
29 | /* Signal init to do the ctrlaltdel action, this will bypass init if | ||
30 | * it hasn't started and do a kernel_restart. | ||
31 | */ | ||
32 | ctrl_alt_del(); | ||
33 | |||
34 | return IRQ_HANDLED; | ||
35 | } | ||
36 | |||
37 | static irqreturn_t nslu2_reset_handler(int irq, void *dev_id) | ||
38 | { | ||
39 | /* This is the paper-clip reset, it shuts the machine down directly. | ||
40 | */ | ||
41 | machine_power_off(); | ||
42 | |||
43 | return IRQ_HANDLED; | ||
44 | } | ||
45 | |||
46 | static int __init nslu2_power_init(void) | ||
47 | { | ||
48 | if (!(machine_is_nslu2())) | ||
49 | return 0; | ||
50 | |||
51 | *IXP4XX_GPIO_GPISR = 0x20400000; /* read the 2 irqs to clr */ | ||
52 | |||
53 | set_irq_type(NSLU2_RB_IRQ, IRQT_LOW); | ||
54 | set_irq_type(NSLU2_PB_IRQ, IRQT_HIGH); | ||
55 | |||
56 | if (request_irq(NSLU2_RB_IRQ, &nslu2_reset_handler, | ||
57 | IRQF_DISABLED, "NSLU2 reset button", NULL) < 0) { | ||
58 | |||
59 | printk(KERN_DEBUG "Reset Button IRQ %d not available\n", | ||
60 | NSLU2_RB_IRQ); | ||
61 | |||
62 | return -EIO; | ||
63 | } | ||
64 | |||
65 | if (request_irq(NSLU2_PB_IRQ, &nslu2_power_handler, | ||
66 | IRQF_DISABLED, "NSLU2 power button", NULL) < 0) { | ||
67 | |||
68 | printk(KERN_DEBUG "Power Button IRQ %d not available\n", | ||
69 | NSLU2_PB_IRQ); | ||
70 | |||
71 | return -EIO; | ||
72 | } | ||
73 | |||
74 | return 0; | ||
75 | } | ||
76 | |||
77 | static void __exit nslu2_power_exit(void) | ||
78 | { | ||
79 | if (!(machine_is_nslu2())) | ||
80 | return; | ||
81 | |||
82 | free_irq(NSLU2_RB_IRQ, NULL); | ||
83 | free_irq(NSLU2_PB_IRQ, NULL); | ||
84 | } | ||
85 | |||
86 | module_init(nslu2_power_init); | ||
87 | module_exit(nslu2_power_exit); | ||
88 | |||
89 | MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>"); | ||
90 | MODULE_DESCRIPTION("NSLU2 Power/Reset driver"); | ||
91 | MODULE_LICENSE("GPL"); | ||