uboot/u-boot-stm32mp-2020.01/board/xilinx/common/board.c

53 lines
1.1 KiB
C

// 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>
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;
}
#if defined(CONFIG_OF_BOARD)
void *board_fdt_blob_setup(void)
{
static void *fw_dtb = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR;
if (fdt_magic(fw_dtb) != FDT_MAGIC) {
printf("DTB is not passed via %p\n", fw_dtb);
return NULL;
}
return fw_dtb;
}
#endif