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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2014 - 2019 Xilinx, Inc.
* Michal Simek <michal.simek@xilinx.com>
*/
#include <common.h>
#include <dm/uclass.h>
#include <i2c.h>
#if !defined(CONFIG_DM_I2C)
int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
{
#if defined(CONFIG_ZYNQ_GEM_EEPROM_ADDR) && \
defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET) && \
defined(CONFIG_ZYNQ_EEPROM_BUS)
i2c_set_bus_num(CONFIG_ZYNQ_EEPROM_BUS);
if (eeprom_read(CONFIG_ZYNQ_GEM_EEPROM_ADDR,
CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET,
ethaddr, 6))
printf("I2C EEPROM MAC address read failed\n");
#endif
return 0;
}
#else
int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
{
int ret = -EINVAL;
#if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
struct udevice *dev;
ofnode eeprom;
eeprom = ofnode_get_chosen_node("xlnx,eeprom");
if (!ofnode_valid(eeprom))
return -ENODEV;
debug("%s: Path to EEPROM %s\n", __func__,
ofnode_get_chosen_prop("xlnx,eeprom"));
ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
if (ret)
return ret;
ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6);
if (ret)
debug("%s: I2C EEPROM MAC address read failed\n", __func__);
else
debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr);
#endif
return ret;
}
#endif
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