[J-u-boot.git] / board / atmel / common / mac_eeprom.c

/*
 * Copyright (C) 2017 Microchip
 *		      Wenyou Yang <[email protected]>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <dm.h>
#include <environment.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;
}
Commit	Line	Data
d9b23e26 WY	1	/*
	2	* Copyright (C) 2017 Microchip
	3	* Wenyou Yang <[email protected]>
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <common.h>
	9	#include <dm.h>
9925f1db	10	#include <environment.h>
d9b23e26 WY	11	#include <i2c_eeprom.h>
	12	#include <netdev.h>
	13
	14	int at91_set_ethaddr(int offset)
	15	{
	16	const int ETH_ADDR_LEN = 6;
	17	unsigned char ethaddr[ETH_ADDR_LEN];
	18	const char *ETHADDR_NAME = "ethaddr";
	19	struct udevice *dev;
	20	int ret;
	21
	22	if (env_get(ETHADDR_NAME))
	23	return 0;
	24
	25	ret = uclass_first_device_err(UCLASS_I2C_EEPROM, &dev);
	26	if (ret)
	27	return ret;
	28
	29	ret = i2c_eeprom_read(dev, offset, ethaddr, 6);
	30	if (ret)
	31	return ret;
	32
	33	if (is_valid_ethaddr(ethaddr))
	34	eth_env_set_enetaddr(ETHADDR_NAME, ethaddr);
	35
	36	return 0;
	37	}