u-boot/board/atmel/common/mac_eeprom.c
Wenyou Yang d9b23e26f0 board: atmel: Create board/$(VENDOR)/common folder
Create board/$(VENDOR)/common folder to accommodate the common code
shared by other atmel boards, now put the code to set ethernet mac
address from eeprom, which uses the i2c eeprom driver.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-11 16:23:06 -04:00

36 lines
675 B
C

/*
* Copyright (C) 2017 Microchip
* Wenyou Yang <wenyou.yang@microchip.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.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;
}