board.c 2.2 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 <env.h>
  8. #include <log.h>
  9. #include <asm/sections.h>
  10. #include <dm/uclass.h>
  11. #include <i2c.h>
  12. #include <linux/sizes.h>
  13. #include "board.h"
  14. #if defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
  15. int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
  16. {
  17. int ret = -EINVAL;
  18. struct udevice *dev;
  19. ofnode eeprom;
  20. eeprom = ofnode_get_chosen_node("xlnx,eeprom");
  21. if (!ofnode_valid(eeprom))
  22. return -ENODEV;
  23. debug("%s: Path to EEPROM %s\n", __func__,
  24. ofnode_read_chosen_string("xlnx,eeprom"));
  25. ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
  26. if (ret)
  27. return ret;
  28. ret = dm_i2c_read(dev, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6);
  29. if (ret)
  30. debug("%s: I2C EEPROM MAC address read failed\n", __func__);
  31. else
  32. debug("%s: I2C EEPROM MAC %pM\n", __func__, ethaddr);
  33. return ret;
  34. }
  35. #endif
  36. #if defined(CONFIG_OF_BOARD) || defined(CONFIG_OF_SEPARATE)
  37. void *board_fdt_blob_setup(void)
  38. {
  39. void *fdt_blob;
  40. #if !defined(CONFIG_VERSAL_NO_DDR) && !defined(CONFIG_ZYNQMP_NO_DDR)
  41. fdt_blob = (void *)CONFIG_XILINX_OF_BOARD_DTB_ADDR;
  42. if (fdt_magic(fdt_blob) == FDT_MAGIC)
  43. return fdt_blob;
  44. debug("DTB is not passed via %p\n", fdt_blob);
  45. #endif
  46. #ifdef CONFIG_SPL_BUILD
  47. /* FDT is at end of BSS unless it is in a different memory region */
  48. if (IS_ENABLED(CONFIG_SPL_SEPARATE_BSS))
  49. fdt_blob = (ulong *)&_image_binary_end;
  50. else
  51. fdt_blob = (ulong *)&__bss_end;
  52. #else
  53. /* FDT is at end of image */
  54. fdt_blob = (ulong *)&_end;
  55. #endif
  56. if (fdt_magic(fdt_blob) == FDT_MAGIC)
  57. return fdt_blob;
  58. debug("DTB is also not passed via %p\n", fdt_blob);
  59. return NULL;
  60. }
  61. #endif
  62. int board_late_init_xilinx(void)
  63. {
  64. u32 ret = 0;
  65. phys_size_t bootm_size = gd->ram_size;
  66. if (CONFIG_IS_ENABLED(ARCH_ZYNQ))
  67. bootm_size = min(bootm_size, (phys_size_t)(SZ_512M + SZ_256M));
  68. ret |= env_set_hex("script_offset_f", CONFIG_BOOT_SCRIPT_OFFSET);
  69. ret |= env_set_addr("bootm_low", (void *)gd->ram_base);
  70. ret |= env_set_addr("bootm_size", (void *)bootm_size);
  71. if (ret)
  72. printf("%s: Saving run time variables FAILED\n", __func__);
  73. return 0;
  74. }