Files
operating-system/buildroot-external/board/hardkernel/patches/uboot/0001-Amlogic-w400-read-ethaddr-from-efuse.patch
2020-08-04 14:48:02 +00:00

56 lines
1.4 KiB
Diff

From b93c598b1acfe59ffac342d114483af8a45a78ac Mon Sep 17 00:00:00 2001
From: Pascal Vizeli <pvizeli@syshack.ch>
Date: Sat, 1 Feb 2020 20:55:39 +0000
Subject: [PATCH 1/1] Amlogic w400: read ethaddr from efuse
Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>
---
board/amlogic/w400/w400.c | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)
diff --git a/board/amlogic/w400/w400.c b/board/amlogic/w400/w400.c
index e60dc3a622..d4028c6a39 100644
--- a/board/amlogic/w400/w400.c
+++ b/board/amlogic/w400/w400.c
@@ -6,13 +6,36 @@
#include <common.h>
#include <dm.h>
-#include <env_internal.h>
+#include <env.h>
#include <asm/io.h>
+#include <asm/arch/sm.h>
#include <asm/arch/eth.h>
+#define EFUSE_MAC_OFFSET 20
+#define EFUSE_MAC_SIZE 12
+
int misc_init_r(void)
{
+ u8 mac_addr[6];
+ char efuse_mac_addr[EFUSE_MAC_SIZE], buff[3];
+ ssize_t len;
+
meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
+ if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
+ len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
+ efuse_mac_addr, EFUSE_MAC_SIZE);
+ if (len != EFUSE_MAC_SIZE)
+ return 0;
+
+ for (int i = 0; i < 6; i++){
+ buff[0] = efuse_mac_addr[i * 2];
+ buff[1] = efuse_mac_addr[i * 2 + 1];
+ mac_addr[i] = simple_strtoul(buff, NULL, 16);
+ }
+ if(is_valid_ethaddr(mac_addr))
+ eth_env_set_enetaddr("ethaddr", mac_addr);
+ }
+
return 0;
}
--
2.17.1