mac_eeprom.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2017 Microchip
* Wenyou Yang <wenyou.yang@microchip.com>
*/
#include <common.h>
#include <dm.h>
#include <eeprom.h>
#include <env.h>
#include <i2c_eeprom.h>
#include <netdev.h>
int at91_set_ethaddr(int offset)
{
const int ETH_ADDR_LEN = 6;
unsigned char ethaddr[ETH_ADDR_LEN];
const char *ETHADDR_NAME = "ethaddr";
struct udevice *dev;
int ret;
if (env_get(ETHADDR_NAME))
return 0;
ret = uclass_first_device_err(UCLASS_I2C_EEPROM, &dev);
if (ret)
return ret;
ret = i2c_eeprom_read(dev, offset, ethaddr, 6);
if (ret)
return ret;
if (is_valid_ethaddr(ethaddr))
eth_env_set_enetaddr(ETHADDR_NAME, ethaddr);
return 0;
}