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- // 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;
- }
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