diff options
author | Len Brown <len.brown@intel.com> | 2010-06-01 22:53:36 -0400 |
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committer | Len Brown <len.brown@intel.com> | 2010-06-01 22:53:36 -0400 |
commit | b42f5b0f0fd8c1c442c1b29a3fbcb338e8bd7732 (patch) | |
tree | 194e13dfa85d2d2af8bd125acd80a445ee0def62 /drivers/leds/leds-net5501.c | |
parent | fe955682d2153b35dffcf1673dff0491096a3f0a (diff) | |
parent | 0a76a34ff0804f1f413807b2e2d12117c2b602ca (diff) |
Merge branches 'bugzilla-14668' and 'misc-2.6.35' into release
Diffstat (limited to 'drivers/leds/leds-net5501.c')
-rw-r--r-- | drivers/leds/leds-net5501.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/leds/leds-net5501.c b/drivers/leds/leds-net5501.c new file mode 100644 index 00000000000..3063f591f0d --- /dev/null +++ b/drivers/leds/leds-net5501.c @@ -0,0 +1,94 @@ +/* + * 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); |