Commit | Line | Data |
---|---|---|
14e40f64 BIP |
1 | /* |
2 | * Soekris board support code | |
3 | * | |
4 | * Copyright (C) 2008-2009 Tower Technologies | |
5 | * Written by Alessandro Zummo <a.zummo@towertech.it> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License version 2 | |
9 | * as published by the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/kernel.h> | |
13 | #include <linux/init.h> | |
14 | #include <linux/io.h> | |
15 | #include <linux/string.h> | |
16 | #include <linux/leds.h> | |
17 | #include <linux/platform_device.h> | |
18 | #include <linux/gpio.h> | |
19 | ||
20 | #include <asm/geode.h> | |
21 | ||
22 | static struct gpio_led net5501_leds[] = { | |
23 | { | |
24 | .name = "error", | |
25 | .gpio = 6, | |
26 | .default_trigger = "default-on", | |
27 | }, | |
28 | }; | |
29 | ||
30 | static struct gpio_led_platform_data net5501_leds_data = { | |
31 | .num_leds = ARRAY_SIZE(net5501_leds), | |
32 | .leds = net5501_leds, | |
33 | }; | |
34 | ||
35 | static struct platform_device net5501_leds_dev = { | |
36 | .name = "leds-gpio", | |
37 | .id = -1, | |
38 | .dev.platform_data = &net5501_leds_data, | |
39 | }; | |
40 | ||
41 | static void __init init_net5501(void) | |
42 | { | |
43 | platform_device_register(&net5501_leds_dev); | |
44 | } | |
45 | ||
46 | struct soekris_board { | |
47 | u16 offset; | |
48 | char *sig; | |
49 | u8 len; | |
50 | void (*init)(void); | |
51 | }; | |
52 | ||
53 | static struct soekris_board __initdata boards[] = { | |
54 | { 0xb7b, "net5501", 7, init_net5501 }, /* net5501 v1.33/1.33c */ | |
55 | { 0xb1f, "net5501", 7, init_net5501 }, /* net5501 v1.32i */ | |
56 | }; | |
57 | ||
58 | static int __init soekris_init(void) | |
59 | { | |
60 | int i; | |
61 | unsigned char *rombase, *bios; | |
62 | ||
63 | if (!is_geode()) | |
64 | return 0; | |
65 | ||
66 | rombase = ioremap(0xffff0000, 0xffff); | |
67 | if (!rombase) { | |
68 | printk(KERN_INFO "Soekris net5501 LED driver failed to get rombase"); | |
69 | return 0; | |
70 | } | |
71 | ||
72 | bios = rombase + 0x20; /* null terminated */ | |
73 | ||
74 | if (strncmp(bios, "comBIOS", 7)) | |
75 | goto unmap; | |
76 | ||
77 | for (i = 0; i < ARRAY_SIZE(boards); i++) { | |
78 | unsigned char *model = rombase + boards[i].offset; | |
79 | ||
80 | if (strncmp(model, boards[i].sig, boards[i].len) == 0) { | |
81 | printk(KERN_INFO "Soekris %s: %s\n", model, bios); | |
82 | ||
83 | if (boards[i].init) | |
84 | boards[i].init(); | |
85 | break; | |
86 | } | |
87 | } | |
88 | ||
89 | unmap: | |
90 | iounmap(rombase); | |
91 | return 0; | |
92 | } | |
93 | ||
94 | arch_initcall(soekris_init); |