Michal Simek | 9755e3d | 2019-01-21 15:25:02 +0100 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * (C) Copyright 2014 - 2019 Xilinx, Inc. |
| 4 | * Michal Simek <michal.simek@xilinx.com> |
| 5 | */ |
| 6 | |
| 7 | #include <common.h> |
| 8 | #include <dm/uclass.h> |
| 9 | #include <i2c.h> |
| 10 | |
Michal Simek | 829e8c7 | 2019-01-21 16:29:07 +0100 | [diff] [blame^] | 11 | #if !defined(CONFIG_DM_I2C) |
Michal Simek | 9755e3d | 2019-01-21 15:25:02 +0100 | [diff] [blame] | 12 | int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) |
| 13 | { |
| 14 | #if defined(CONFIG_ZYNQ_GEM_EEPROM_ADDR) && \ |
| 15 | defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET) && \ |
| 16 | defined(CONFIG_ZYNQ_EEPROM_BUS) |
| 17 | i2c_set_bus_num(CONFIG_ZYNQ_EEPROM_BUS); |
| 18 | |
| 19 | if (eeprom_read(CONFIG_ZYNQ_GEM_EEPROM_ADDR, |
| 20 | CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, |
| 21 | ethaddr, 6)) |
| 22 | printf("I2C EEPROM MAC address read failed\n"); |
| 23 | #endif |
| 24 | |
| 25 | return 0; |
| 26 | } |
Michal Simek | 829e8c7 | 2019-01-21 16:29:07 +0100 | [diff] [blame^] | 27 | |
| 28 | #else |
| 29 | int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) |
| 30 | { |
| 31 | int ret = -EINVAL; |
| 32 | |
| 33 | #if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET) |
| 34 | struct udevice *dev; |
| 35 | ofnode eeprom; |
| 36 | |
| 37 | eeprom = ofnode_get_chosen_node("xlnx,eeprom"); |
| 38 | if (!ofnode_valid(eeprom)) |
| 39 | return -ENODEV; |
| 40 | |
| 41 | debug("%s: Path to EEPROM %s\n", __func__, |
| 42 | ofnode_get_chosen_prop("xlnx,eeprom")); |
| 43 | |
| 44 | ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev); |
| 45 | if (ret) |
| 46 | return ret; |
| 47 | |
| 48 | ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6); |
| 49 | if (ret) |
| 50 | debug("%s: I2C EEPROM MAC address read failed\n", __func__); |
| 51 | else |
| 52 | debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr); |
| 53 | #endif |
| 54 | |
| 55 | return ret; |
| 56 | } |
| 57 | #endif |