omap: Devkit8000: Use DIE id to initialize dm9000 MAC address
authorKan-Ru Chen <kanru@0xlab.org>
Mon, 2 Aug 2010 11:21:41 +0000 (14:21 +0300)
committerTony Lindgren <tony@atomide.com>
Mon, 2 Aug 2010 11:21:41 +0000 (14:21 +0300)
The devkit8000 boards often come with empty EEPROM thus without
valid ethernet MAC address. The DIE id to MAC formula is copied from
u-boot.

Signed-off-by: Kan-Ru Chen <kanru@0xlab.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/mach-omap2/board-devkit8000.c

index 77022b58881670fc38bf3c88840a4b925ae0ff03..128b9329ef25a0d86ea5e57eaf0339ff4e17a67c 100644 (file)
@@ -33,6 +33,7 @@
 #include <linux/i2c/twl.h>
 
 #include <mach/hardware.h>
+#include <mach/id.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -560,6 +561,9 @@ static struct platform_device omap_dm9000_dev = {
 
 static void __init omap_dm9000_init(void)
 {
+       unsigned char *eth_addr = omap_dm9000_platdata.dev_addr;
+       struct omap_die_id odi;
+
        if (gpio_request(OMAP_DM9000_GPIO_IRQ, "dm9000 irq") < 0) {
                printk(KERN_ERR "Failed to request GPIO%d for dm9000 IRQ\n",
                        OMAP_DM9000_GPIO_IRQ);
@@ -567,6 +571,16 @@ static void __init omap_dm9000_init(void)
                }
 
        gpio_direction_input(OMAP_DM9000_GPIO_IRQ);
+
+       /* init the mac address using DIE id */
+       omap_get_die_id(&odi);
+
+       eth_addr[0] = 0x02; /* locally administered */
+       eth_addr[1] = odi.id_1 & 0xff;
+       eth_addr[2] = (odi.id_0 & 0xff000000) >> 24;
+       eth_addr[3] = (odi.id_0 & 0x00ff0000) >> 16;
+       eth_addr[4] = (odi.id_0 & 0x0000ff00) >> 8;
+       eth_addr[5] = (odi.id_0 & 0x000000ff);
 }
 
 static struct platform_device *devkit8000_devices[] __initdata = {