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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016 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/gx.h>
#include <asm/arch/mem.h>
#include <asm/arch/sm.h>
#include <asm/arch/eth.h>
#define EFUSE_SN_OFFSET 20
#define EFUSE_SN_SIZE 16
#define EFUSE_MAC_OFFSET 52
#define EFUSE_MAC_SIZE 6
int misc_init_r(void)
{
u8 mac_addr[EFUSE_MAC_SIZE];
char serial[EFUSE_SN_SIZE];
ssize_t len;
if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
mac_addr, EFUSE_MAC_SIZE);
if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
eth_env_set_enetaddr("ethaddr", mac_addr);
else
meson_generate_serial_ethaddr();
}
if (!env_get("serial#")) {
len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
EFUSE_SN_SIZE);
if (len == EFUSE_SN_SIZE)
env_set("serial#", serial);
}
return 0;
}
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