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openwrt-xburst/target/linux/ixp4xx/patches-2.6.23/066-nslu2_fetch_mac.patch

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Index: linux-2.6.23.11-armeb/arch/arm/mach-ixp4xx/nslu2-setup.c
===================================================================
--- linux-2.6.23.11-armeb.orig/arch/arm/mach-ixp4xx/nslu2-setup.c 2007-12-29 01:46:05.000000000 -0600
+++ linux-2.6.23.11-armeb/arch/arm/mach-ixp4xx/nslu2-setup.c 2007-12-29 12:21:29.000000000 -0600
@@ -24,6 +24,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>
+#include <asm/io.h>
static struct flash_platform_data nslu2_flash_data = {
.map_name = "cfi_probe",
@@ -193,6 +194,9 @@
static void __init nslu2_init(void)
{
+ uint8_t __iomem *f;
+ int i;
+
ixp4xx_sys_init();
nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
@@ -209,6 +213,33 @@
(void)platform_device_register(&nslu2_uart);
platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
+
+
+ /*
+ * Map in a portion of the flash and read the MAC address.
+ * Since it is stored in BE in the flash itself, we need to
+ * byteswap it if we're in LE mode.
+ */
+ if ((f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x40000))) {
+#ifdef __ARMEB__
+ for (i = 0; i < 6; i++) {
+ nslu2_plat_eth[0].hwaddr[i] = readb(f + 0x3FFB0 + i);
+ }
+#else
+ nslu2_plat_eth[0].hwaddr[0] = readb(f + 0x3FFB0 + 3);
+ nslu2_plat_eth[0].hwaddr[1] = readb(f + 0x3FFB0 + 2);
+ nslu2_plat_eth[0].hwaddr[2] = readb(f + 0x3FFB0 + 1);
+ nslu2_plat_eth[0].hwaddr[3] = readb(f + 0x3FFB0 + 0);
+ nslu2_plat_eth[0].hwaddr[4] = readb(f + 0x3FFB0 + 7);
+ nslu2_plat_eth[0].hwaddr[5] = readb(f + 0x3FFB0 + 6);
+#endif
+ iounmap(f);
+ }
+ printk(KERN_INFO "NSLU2: Using MAC address %.2x:%.2x:%.2x:%.2x:%.2x:%.2x for port 0\n",
+ nslu2_plat_eth[0].hwaddr[0], nslu2_plat_eth[0].hwaddr[1],
+ nslu2_plat_eth[0].hwaddr[2], nslu2_plat_eth[0].hwaddr[3],
+ nslu2_plat_eth[0].hwaddr[4], nslu2_plat_eth[0].hwaddr[5]);
+
}
MACHINE_START(NSLU2, "Linksys NSLU2")