// SPDX-License-Identifier: GPL-2.0+ /* * Copyright (C) 2017 Microchip * Wenyou Yang */ #include #include #include #include #include #include #include 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; } /* this function will set eth1addr from a second eeprom, if available */ int at91_set_eth1addr(int offset) { const int ETH_ADDR_LEN = 6; unsigned char ethaddr[ETH_ADDR_LEN]; /* configure eth1addr for second interface */ const char *ETHADDR_NAME = "eth1addr"; struct udevice *dev; int ret; if (env_get(ETHADDR_NAME)) return 0; /* first eeprom is retrieved, this is for the first interface */ ret = uclass_first_device_err(UCLASS_I2C_EEPROM, &dev); if (ret) return ret; /* attempt to obtain a second eeprom device */ ret = uclass_next_device_err(&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; }