53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
// 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>
|
|
#include <asm/arch/boot.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;
|
|
|
|
if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG) &&
|
|
meson_get_soc_rev(tmp, sizeof(tmp)) > 0)
|
|
env_set("soc_rev", tmp);
|
|
|
|
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;
|
|
}
|