From b4eb22a60d15240d280785df7948448824d86fe5 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Wed, 6 Feb 2013 13:55:42 +0530 Subject: board: samsung: Update MAC address for Arndale board through GUID There are a couple of GUID (Global Unique Identifier) registers within EXYNOS5250 SoC. The values of these GUID registers are set as board MAC address. Signed-off-by: Tushar Behera --- board/samsung/smdk5250/smdk5250.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'board') diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c index d70976db1..28cf0afaf 100644 --- a/board/samsung/smdk5250/smdk5250.c +++ b/board/samsung/smdk5250/smdk5250.c @@ -224,9 +224,25 @@ static int board_i2c_init(void) #ifdef CONFIG_BOARD_LATE_INIT int board_late_init(void) { + int i; + uchar mac[6]; + unsigned int guid_high = readl(EXYNOS5_GUID_HIGH); + unsigned int guid_low = readl(EXYNOS5_GUID_LOW); + + for (i = 0; i < 2; i++) + mac[i] = (guid_high >> (8 * (1 - i))) & 0xFF; + + for (i = 0; i < 4; i++) + mac[i+2] = (guid_low >> (8 * (3 - i))) & 0xFF; + + /* mark it as not multicast and outside official 80211 MAC namespace */ + mac[0] = (mac[0] & ~0x1) | 0x2; + + eth_setenv_enetaddr("ethaddr", mac); + eth_setenv_enetaddr("usbethaddr", mac); + #ifdef CONFIG_PREBOOT setenv("preboot", CONFIG_PREBOOT); - setenv("usbethaddr", "00:40:5c:26:0a:5b"); #endif } #endif -- cgit v1.2.3