1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2020 BayLibre, SAS
4 * Author: Neil Armstrong <narmstrong@baylibre.com>
13 #include <asm/arch/boot.h>
14 #include <asm/arch/sm.h>
15 #include <asm/arch/eth.h>
16 #include <asm/arch/boot.h>
18 #define EFUSE_MAC_OFFSET 20
19 #define EFUSE_MAC_SIZE 12
20 #define MAC_ADDR_LEN 6
22 int mmc_get_env_dev(void)
24 if (meson_get_boot_device() == BOOT_DEVICE_EMMC)
31 u8 mac_addr[MAC_ADDR_LEN];
32 char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[3];
35 if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG) &&
36 meson_get_soc_rev(tmp, sizeof(tmp)) > 0)
37 env_set("soc_rev", tmp);
39 meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
41 if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
42 len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
43 efuse_mac_addr, EFUSE_MAC_SIZE);
44 if (len != EFUSE_MAC_SIZE)
47 /* MAC is stored in ASCII format, 1bytes = 2characters */
48 for (int i = 0; i < 6; i++) {
49 tmp[0] = efuse_mac_addr[i * 2];
50 tmp[1] = efuse_mac_addr[i * 2 + 1];
52 mac_addr[i] = simple_strtoul(tmp, NULL, 16);
55 if (is_valid_ethaddr(mac_addr))
56 eth_env_set_enetaddr("ethaddr", mac_addr);
58 meson_generate_serial_ethaddr();