58 lines
1.5 KiB
Diff
58 lines
1.5 KiB
Diff
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c 2006-10-31 15:39:50.000000000 +0100
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+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c 2006-10-31 15:43:35.000000000 +0100
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@@ -17,6 +17,7 @@
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#include <linux/kernel.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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+#include <linux/mtd/mtd.h>
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#include <linux/leds.h>
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#include <asm/mach-types.h>
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@@ -180,10 +181,46 @@
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gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
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}
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+/*
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+ * When the RedBoot partition is added the MAC address is read from
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+ * it.
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+ */
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+static void nslu2_flash_add(struct mtd_info *mtd) {
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+ if (strcmp(mtd->name, "RedBoot") == 0) {
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+ size_t retlen;
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+ u_char mac[6];
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+
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+ /* The MAC is at a known offset... */
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+ if (mtd->read(mtd, 0x3FFB0, 6, &retlen, mac) == 0 && retlen == 6) {
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+ printk(KERN_INFO "NSLU2 MAC: %.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
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+ mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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+ memcpy(&plat_mac0.hwaddr, mac, 6);
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+ } else {
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+ printk(KERN_ERR "NSLU2 MAC: read failed\n");
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+ }
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+ }
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+}
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+
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+/*
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+ * Nothing to do on remove at present.
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+ */
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+static void nslu2_flash_remove(struct mtd_info *mtd) {
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+}
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+
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+static struct mtd_notifier nslu2_flash_notifier = {
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+ .add = nslu2_flash_add,
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+ .remove = nslu2_flash_remove,
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+};
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+
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static void __init nslu2_init(void)
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{
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ixp4xx_timer_freq = NSLU2_FREQ;
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+ /* The flash has an ethernet MAC embedded in it which we need,
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+ * that is all this notifier does.
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+ */
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+ register_mtd_user(&nslu2_flash_notifier);
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+
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ixp4xx_sys_init();
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nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
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