The devkit8000 debug 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 <[email protected]> --- arch/arm/mach-omap2/board-devkit8000.c | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/board-devkit8000.c b/arch/arm/mach-omap2/board-devkit8000.c index a2a8afe..807ceee 100644 --- a/arch/arm/mach-omap2/board-devkit8000.c +++ b/arch/arm/mach-omap2/board-devkit8000.c @@ -45,6 +45,7 @@ #include <plat/usb.h> #include <plat/timer-gp.h> #include <plat/display.h> +#include <plat/io.h> #include <plat/mcspi.h> #include <linux/input/matrix_keypad.h> @@ -66,6 +67,10 @@ #define OMAP_DM9000_GPIO_IRQ 25 #define OMAP3_DEVKIT_TS_GPIO 27 +#define DIE_ID_REG_BASE (L4_34XX_PHYS + 0xA000) +#define DIE_ID_REG_0 0x218 +#define DIE_ID_REG_1 0x21C + struct flash_partitions { struct mtd_partition *parts; int nr_parts; @@ -603,6 +608,9 @@ static struct platform_device omap_dm9000_dev = { static void __init omap_dm9000_init(void) { + unsigned char *eth_addr = omap_dm9000_platdata.dev_addr; + unsigned int die_id_0; + 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); @@ -610,6 +618,15 @@ static void __init omap_dm9000_init(void) } gpio_direction_input(OMAP_DM9000_GPIO_IRQ); + + /* init the mac address using DIE id */ + die_id_0 = omap_readl(DIE_ID_REG_BASE + DIE_ID_REG_0); + eth_addr[0] = 0x02; /* locally administered */ + eth_addr[1] = omap_readl(DIE_ID_REG_BASE + DIE_ID_REG_1) & 0xff; + eth_addr[2] = (die_id_0 & 0xff000000) >> 24; + eth_addr[3] = (die_id_0 & 0x00ff0000) >> 16; + eth_addr[4] = (die_id_0 & 0x0000ff00) >> 8; + eth_addr[5] = (die_id_0 & 0x000000ff); } static struct platform_device *devkit8000_devices[] __initdata = { -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
