/* * Soekris board support code * * Copyright (C) 2008-2009 Tower Technologies * Written by Alessandro Zummo <a.zummo@towertech.it> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/io.h> #include <linux/string.h> #include <linux/leds.h> #include <linux/platform_device.h> #include <linux/gpio.h> #include <asm/geode.h> static struct gpio_led net5501_leds[] = { { .name = "error", .gpio = 6, .default_trigger = "default-on", }, }; static struct gpio_led_platform_data net5501_leds_data = { .num_leds = ARRAY_SIZE(net5501_leds), .leds = net5501_leds, }; static struct platform_device net5501_leds_dev = { .name = "leds-gpio", .id = -1, .dev.platform_data = &net5501_leds_data, }; static void __init init_net5501(void) { platform_device_register(&net5501_leds_dev); } struct soekris_board { u16 offset; char *sig; u8 len; void (*init)(void); }; static struct soekris_board __initdata boards[] = { { 0xb7b, "net5501", 7, init_net5501 }, /* net5501 v1.33/1.33c */ { 0xb1f, "net5501", 7, init_net5501 }, /* net5501 v1.32i */ }; static int __init soekris_init(void) { int i; unsigned char *rombase, *bios; if (!is_geode()) return 0; rombase = ioremap(0xffff0000, 0xffff); if (!rombase) { printk(KERN_INFO "Soekris net5501 LED driver failed to get rombase"); return 0; } bios = rombase + 0x20; /* null terminated */ if (strncmp(bios, "comBIOS", 7)) goto unmap; for (i = 0; i < ARRAY_SIZE(boards); i++) { unsigned char *model = rombase + boards[i].offset; if (strncmp(model, boards[i].sig, boards[i].len) == 0) { printk(KERN_INFO "Soekris %s: %s\n", model, bios); if (boards[i].init) boards[i].init(); break; } } unmap: iounmap(rombase); return 0; } arch_initcall(soekris_init);