env: Move env_set() to env.h
[oweals/u-boot.git] / board / atmel / common / mac_eeprom.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2017 Microchip
4  *                    Wenyou Yang <wenyou.yang@microchip.com>
5  */
6
7 #include <common.h>
8 #include <dm.h>
9 #include <env.h>
10 #include <environment.h>
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 }