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authorTushar Behera <tushar.behera@linaro.org>2013-02-06 13:55:42 +0530
committerJohn Rigby <john.rigby@linaro.org>2013-02-07 15:58:18 -0700
commitb4eb22a60d15240d280785df7948448824d86fe5 (patch)
tree5c7d49a81cc5b54b0b838b83f2883ce187c8ff01
parentd49088eaddbfc24abab8a8e2ca86786cce44fad0 (diff)
downloadu-boot-linaro-stable-b4eb22a60d15240d280785df7948448824d86fe5.tar.gz
board: samsung: Update MAC address for Arndale board through GUID2013.02.2
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 <tushar.behera@linaro.org>
-rw-r--r--arch/arm/include/asm/arch-exynos/cpu.h2
-rw-r--r--board/samsung/smdk5250/smdk5250.c18
2 files changed, 19 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-exynos/cpu.h b/arch/arm/include/asm/arch-exynos/cpu.h
index 206df2189..a6a7f9acc 100644
--- a/arch/arm/include/asm/arch-exynos/cpu.h
+++ b/arch/arm/include/asm/arch-exynos/cpu.h
@@ -67,6 +67,8 @@
#define EXYNOS5_GPIO_PART4_BASE 0x03860000
#define EXYNOS5_PRO_ID 0x10000000
+#define EXYNOS5_GUID_LOW 0x10000014
+#define EXYNOS5_GUID_HIGH 0x10000018
#define EXYNOS5_CLOCK_BASE 0x10010000
#define EXYNOS5_POWER_BASE 0x10040000
#define EXYNOS5_SWRESET 0x10040400
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