projects / deliverable / linux.git / blame
| 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> | |
| 54f4dedb | 19 | #include <linux/module.h> |
| 14e40f64 BIP |
20 | |
| 21 | #include <asm/geode.h> | |
| 22 | ||
| 9517f925 | 23 | static const struct gpio_led net5501_leds[] = { |
| 14e40f64 BIP |
24 | { |
| 25 | .name = "error", | |
| 26 | .gpio = 6, | |
| 27 | .default_trigger = "default-on", | |
| 28 | }, | |
| 29 | }; | |
| 30 | ||
| 31 | static struct gpio_led_platform_data net5501_leds_data = { | |
| 32 | .num_leds = ARRAY_SIZE(net5501_leds), | |
| 33 | .leds = net5501_leds, | |
| 34 | }; | |
| 35 | ||
| 36 | static struct platform_device net5501_leds_dev = { | |
| 37 | .name = "leds-gpio", | |
| 38 | .id = -1, | |
| 39 | .dev.platform_data = &net5501_leds_data, | |
| 40 | }; | |
| 41 | ||
| 42 | static void __init init_net5501(void) | |
| 43 | { | |
| 44 | platform_device_register(&net5501_leds_dev); | |
| 45 | } | |
| 46 | ||
| 47 | struct soekris_board { | |
| 48 | u16 offset; | |
| 49 | char *sig; | |
| 50 | u8 len; | |
| 51 | void (*init)(void); | |
| 52 | }; | |
| 53 | ||
| 54 | static struct soekris_board __initdata boards[] = { | |
| 55 | { 0xb7b, "net5501", 7, init_net5501 }, /* net5501 v1.33/1.33c */ | |
| 56 | { 0xb1f, "net5501", 7, init_net5501 }, /* net5501 v1.32i */ | |
| 57 | }; | |
| 58 | ||
| 59 | static int __init soekris_init(void) | |
| 60 | { | |
| 61 | int i; | |
| 62 | unsigned char *rombase, *bios; | |
| 63 | ||
| 64 | if (!is_geode()) | |
| 65 | return 0; | |
| 66 | ||
| 67 | rombase = ioremap(0xffff0000, 0xffff); | |
| 68 | if (!rombase) { | |
| 69 | printk(KERN_INFO "Soekris net5501 LED driver failed to get rombase"); | |
| 70 | return 0; | |
| 71 | } | |
| 72 | ||
| 73 | bios = rombase + 0x20; /* null terminated */ | |
| 74 | ||
| 75 | if (strncmp(bios, "comBIOS", 7)) | |
| 76 | goto unmap; | |
| 77 | ||
| 78 | for (i = 0; i < ARRAY_SIZE(boards); i++) { | |
| 79 | unsigned char *model = rombase + boards[i].offset; | |
| 80 | ||
| 81 | if (strncmp(model, boards[i].sig, boards[i].len) == 0) { | |
| 82 | printk(KERN_INFO "Soekris %s: %s\n", model, bios); | |
| 83 | ||
| 84 | if (boards[i].init) | |
| 85 | boards[i].init(); | |
| 86 | break; | |
| 87 | } | |
| 88 | } | |
| 89 | ||
| 90 | unmap: | |
| 91 | iounmap(rombase); | |
| 92 | return 0; | |
| 93 | } | |
| 94 | ||
| 95 | arch_initcall(soekris_init); | |
| 65f75ace RD |
96 | |
| 97 | MODULE_LICENSE("GPL"); |