1 files changed, 49 insertions, 0 deletions
diff --git a/board/amlogic/odroid-n2/odroid-n2.c b/board/amlogic/odroid-n2/odroid-n2.c
new file mode 100644
index 0000000000..caf7fd6810
--- /dev/null
+++ b/board/amlogic/odroid-n2/odroid-n2.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2020 BayLibre, SAS
+ * Author: Neil Armstrong <narmstrong@baylibre.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <env.h>
+#include <init.h>
+#include <net.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
+#define MAC_ADDR_LEN		6
+
+int misc_init_r(void)
+{
+	u8 mac_addr[MAC_ADDR_LEN];
+	char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[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;
+
+		/* 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);
+		else
+			meson_generate_serial_ethaddr();
+	}
+
+	return 0;
+}