u-boot/board/rockchip/tinker_rk3288/tinker-rk3288.c
Jonas Karlman ecc3bd73b3 rockchip: tinker: set ethaddr in late init
Set ethernet mac address in late init for Tinker Board,
prevents getting a random mac address each boot.

Read mac address from eeprom, first 6 bytes from m24c08@50.
Same as /etc/init.d/rockchip.sh on Tinker OS.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-05-10 13:37:22 -06:00

35 lines
581 B
C

/*
* (C) Copyright 2016 Rockchip Electronics Co., Ltd
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <i2c_eeprom.h>
#include <netdev.h>
static int get_ethaddr_from_eeprom(u8 *addr)
{
int ret;
struct udevice *dev;
ret = uclass_first_device_err(UCLASS_I2C_EEPROM, &dev);
if (ret)
return ret;
return i2c_eeprom_read(dev, 0, addr, 6);
}
int rk_board_late_init(void)
{
u8 ethaddr[6];
if (get_ethaddr_from_eeprom(ethaddr))
return 0;
if (is_valid_ethaddr(ethaddr))
eth_setenv_enetaddr("ethaddr", ethaddr);
return 0;
}