board.c 1.1 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2014 - 2019 Xilinx, Inc.
  4. * Michal Simek <michal.simek@xilinx.com>
  5. */
  6. #include <common.h>
  7. #include <dm/uclass.h>
  8. #include <i2c.h>
  9. int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
  10. {
  11. int ret = -EINVAL;
  12. #if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
  13. struct udevice *dev;
  14. ofnode eeprom;
  15. eeprom = ofnode_get_chosen_node("xlnx,eeprom");
  16. if (!ofnode_valid(eeprom))
  17. return -ENODEV;
  18. debug("%s: Path to EEPROM %s\n", __func__,
  19. ofnode_get_chosen_prop("xlnx,eeprom"));
  20. ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
  21. if (ret)
  22. return ret;
  23. ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6);
  24. if (ret)
  25. debug("%s: I2C EEPROM MAC address read failed\n", __func__);
  26. else
  27. debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr);
  28. #endif
  29. return ret;
  30. }
  31. #if defined(CONFIG_OF_BOARD)
  32. void *board_fdt_blob_setup(void)
  33. {
  34. static void *fw_dtb = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR;
  35. if (fdt_magic(fw_dtb) != FDT_MAGIC) {
  36. printf("DTB is not passed via %p\n", fw_dtb);
  37. return NULL;
  38. }
  39. return fw_dtb;
  40. }
  41. #endif