File _service:gbs:0011-amlogic-vim3-fix-MAC-address-reading-code.patch of Package u-boot-rpi3-32b

From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Tue, 12 Jan 2021 21:03:16 +0100
Subject: amlogic: vim3: fix MAC address reading code

It turned out that MAC address is stored in ASCII format in EFUSE, so fix
the code reading it to use ASCII format.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: If3723f3aa8570de04e6e753e958ada624e3482fe
---
 board/amlogic/w400/w400.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/board/amlogic/w400/w400.c b/board/amlogic/w400/w400.c
index a420557920..31db8063b2 100644
--- a/board/amlogic/w400/w400.c
+++ b/board/amlogic/w400/w400.c
@@ -15,7 +15,7 @@
 #include <asm/arch/sm.h>
 
 #define EFUSE_MAC_OFFSET	0
-#define EFUSE_MAC_SIZE		6
+#define EFUSE_MAC_SIZE		12
 #define MAC_ADDR_LEN		6
 
 int mmc_get_env_dev(void)
@@ -29,7 +29,7 @@ int mmc_get_env_dev(void)
 int misc_init_r(void)
 {
 	u8 mac_addr[MAC_ADDR_LEN];
-	char efuse_mac_addr[EFUSE_MAC_SIZE];
+	char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[3];
 	ssize_t len;
 
 	meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
@@ -40,8 +40,13 @@ int misc_init_r(void)
 		if (len != EFUSE_MAC_SIZE)
 			return 0;
 
-		for (int i = 0; i < 6; i++)
-			mac_addr[i] = efuse_mac_addr[i];
+		/* MAC is stored in ASCII format, 1bytes = 2characters */
+		for (int i = 0; i < 6; i++) {
+			tmp[0] = efuse_mac_addr[i * 2];
+			tmp[1] = efuse_mac_addr[i * 2 + 1];
+			tmp[2] = '\0';
+			mac_addr[i] = simple_strtoul(tmp, NULL, 16);
+		}
 
 		if (is_valid_ethaddr(mac_addr))
 			eth_env_set_enetaddr("ethaddr", mac_addr);