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 000000000000..3063f591f0dc
--- /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);