board.c 1.8 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 <asm/sections.h>
  8. #include <dm/uclass.h>
  9. #include <i2c.h>
  10. #include "board.h"
  11. int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
  12. {
  13. int ret = -EINVAL;
  14. #if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
  15. struct udevice *dev;
  16. ofnode eeprom;
  17. eeprom = ofnode_get_chosen_node("xlnx,eeprom");
  18. if (!ofnode_valid(eeprom))
  19. return -ENODEV;
  20. debug("%s: Path to EEPROM %s\n", __func__,
  21. ofnode_read_chosen_string("xlnx,eeprom"));
  22. ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
  23. if (ret)
  24. return ret;
  25. ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6);
  26. if (ret)
  27. debug("%s: I2C EEPROM MAC address read failed\n", __func__);
  28. else
  29. debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr);
  30. #endif
  31. return ret;
  32. }
  33. #if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
  34. void *board_fdt_blob_setup(void)
  35. {
  36. static void *fdt_blob;
  37. #if !defined(CONFIG_VERSAL_NO_DDR) && !defined(CONFIG_ZYNQMP_NO_DDR)
  38. fdt_blob = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR;
  39. if (fdt_magic(fdt_blob) == FDT_MAGIC)
  40. return fdt_blob;
  41. debug("DTB is not passed via %p\n", fdt_blob);
  42. #endif
  43. #ifdef CONFIG_SPL_BUILD
  44. /* FDT is at end of BSS unless it is in a different memory region */
  45. if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS))
  46. fdt_blob = (ulong *)&_image_binary_end;
  47. else
  48. fdt_blob = (ulong *)&__bss_end;
  49. #else
  50. /* FDT is at end of image */
  51. fdt_blob = (ulong *)&_end;
  52. #endif
  53. if (fdt_magic(fdt_blob) == FDT_MAGIC)
  54. return fdt_blob;
  55. debug("DTB is also not passed via %p\n", fdt_blob);
  56. return NULL;
  57. }
  58. #endif
  59. int board_late_init_xilinx(void)
  60. {
  61. env_set_hex("script_offset_f", CONFIG_BOOT_SCRIPT_OFFSET);
  62. return 0;
  63. }