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path: root/target/linux/ixp4xx/patches-2.6.23/068-fsg3_fetch_mac.patch
blob: 513d3cfdd56ea4b2db735855e1ff5ee6d7220e45 (plain)
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Index: linux-2.6.23.12/arch/arm/mach-ixp4xx/fsg-setup.c
===================================================================
--- linux-2.6.23.12.orig/arch/arm/mach-ixp4xx/fsg-setup.c	2008-01-05 13:56:28.000000000 +1030
+++ linux-2.6.23.12/arch/arm/mach-ixp4xx/fsg-setup.c	2008-01-05 13:56:43.000000000 +1030
@@ -21,6 +21,7 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/flash.h>
+#include <asm/io.h>
 
 static struct flash_platform_data fsg_flash_data = {
 	.map_name		= "cfi_probe",
@@ -140,6 +141,9 @@
 
 static void __init fsg_init(void)
 {
+	uint8_t __iomem *f;
+	int i;
+
 	ixp4xx_sys_init();
 
 	fsg_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
@@ -161,6 +165,45 @@
 	(void)platform_device_register(&fsg_uart);
 
 	platform_add_devices(fsg_devices, ARRAY_SIZE(fsg_devices));
+
+
+	/*
+	 * Map in a portion of the flash and read the MAC addresses.
+	 * 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), 0x400000))) {
+#ifdef __ARMEB__
+		for (i = 0; i < 6; i++) {
+			fsg_plat_eth[0].hwaddr[i] = readb(f + 0x3C0422 + i);
+			fsg_plat_eth[1].hwaddr[i] = readb(f + 0x3C043B + i);
+		}
+#else
+		fsg_plat_eth[0].hwaddr[0] = readb(f + 0x3C0422 + 3);
+		fsg_plat_eth[0].hwaddr[1] = readb(f + 0x3C0422 + 2);
+		fsg_plat_eth[0].hwaddr[2] = readb(f + 0x3C0422 + 1);
+		fsg_plat_eth[0].hwaddr[3] = readb(f + 0x3C0422 + 0);
+		fsg_plat_eth[0].hwaddr[4] = readb(f + 0x3C0422 + 7);
+		fsg_plat_eth[0].hwaddr[5] = readb(f + 0x3C0422 + 6);
+
+		fsg_plat_eth[1].hwaddr[0] = readb(f + 0x3C0422 + 3);
+		fsg_plat_eth[1].hwaddr[1] = readb(f + 0x3C0422 + 2);
+		fsg_plat_eth[1].hwaddr[2] = readb(f + 0x3C0422 + 1);
+		fsg_plat_eth[1].hwaddr[3] = readb(f + 0x3C0422 + 0);
+		fsg_plat_eth[1].hwaddr[4] = readb(f + 0x3C0422 + 7);
+		fsg_plat_eth[1].hwaddr[5] = readb(f + 0x3C0422 + 6);
+#endif
+		iounmap(f);
+	}
+	printk(KERN_INFO "FSG: Using MAC address %.2x:%.2x:%.2x:%.2x:%.2x:%.2x for port 0\n",
+	       fsg_plat_eth[0].hwaddr[0], fsg_plat_eth[0].hwaddr[1],
+	       fsg_plat_eth[0].hwaddr[2], fsg_plat_eth[0].hwaddr[3],
+	       fsg_plat_eth[0].hwaddr[4], fsg_plat_eth[0].hwaddr[5]);
+	printk(KERN_INFO "FSG: Using MAC address %.2x:%.2x:%.2x:%.2x:%.2x:%.2x for port 1\n",
+	       fsg_plat_eth[1].hwaddr[0], fsg_plat_eth[1].hwaddr[1],
+	       fsg_plat_eth[1].hwaddr[2], fsg_plat_eth[1].hwaddr[3],
+	       fsg_plat_eth[1].hwaddr[4], fsg_plat_eth[1].hwaddr[5]);
+
 }
 
 MACHINE_START(FSG, "Freecom FSG-3")