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omap: Devkit8000: Use DIE id to initialize dm9000 MAC address

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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>
This commit is contained in:
Kan-Ru Chen 2010-08-02 14:21:41 +03:00 committed by Tony Lindgren
parent c46732bbf3
commit f535daed92
1 changed files with 14 additions and 0 deletions
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14
arch/arm/mach-omap2/board-devkit8000.c
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@ -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 = {