boot-mode.c 2.8 KB

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  1. /*
  2. * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
  3. *
  4. * SPDX-License-Identifier: GPL-2.0+
  5. */
  6. #include <common.h>
  7. #include <mmc.h>
  8. #include <spl.h>
  9. #include <linux/err.h>
  10. #include "../sbc/sbc-regs.h"
  11. #include "../soc-info.h"
  12. #include "boot-device.h"
  13. u32 spl_boot_device_raw(void)
  14. {
  15. if (boot_is_swapped())
  16. return BOOT_DEVICE_NOR;
  17. switch (uniphier_get_soc_type()) {
  18. #if defined(CONFIG_ARCH_UNIPHIER_SLD3)
  19. case SOC_UNIPHIER_SLD3:
  20. return uniphier_sld3_boot_device();
  21. #endif
  22. #if defined(CONFIG_ARCH_UNIPHIER_LD4) || defined(CONFIG_ARCH_UNIPHIER_PRO4) || \
  23. defined(CONFIG_ARCH_UNIPHIER_SLD8)
  24. case SOC_UNIPHIER_LD4:
  25. case SOC_UNIPHIER_PRO4:
  26. case SOC_UNIPHIER_SLD8:
  27. return uniphier_ld4_boot_device();
  28. #endif
  29. #if defined(CONFIG_ARCH_UNIPHIER_PRO5)
  30. case SOC_UNIPHIER_PRO5:
  31. return uniphier_pro5_boot_device();
  32. #endif
  33. #if defined(CONFIG_ARCH_UNIPHIER_PXS2) || defined(CONFIG_ARCH_UNIPHIER_LD6B)
  34. case SOC_UNIPHIER_PXS2:
  35. case SOC_UNIPHIER_LD6B:
  36. return uniphier_pxs2_boot_device();
  37. #endif
  38. #if defined(CONFIG_ARCH_UNIPHIER_LD20)
  39. case SOC_UNIPHIER_LD20:
  40. return uniphier_ld20_boot_device();
  41. #endif
  42. default:
  43. return BOOT_DEVICE_NONE;
  44. }
  45. }
  46. u32 spl_boot_device(void)
  47. {
  48. u32 ret;
  49. ret = spl_boot_device_raw();
  50. return ret == BOOT_DEVICE_USB ? BOOT_DEVICE_NOR : ret;
  51. }
  52. u32 spl_boot_mode(void)
  53. {
  54. struct mmc *mmc;
  55. /*
  56. * work around a bug in the Boot ROM of PH1-sLD3, LD4, Pro4, and sLD8:
  57. *
  58. * The boot ROM in these SoCs breaks the PARTITION_CONFIG [179] of
  59. * Extended CSD register; when switching to the Boot Partition 1, the
  60. * Boot ROM should issue the SWITCH command (CMD6) with Set Bits for
  61. * the Access Bits, but in fact it uses Write Byte for the Access Bits.
  62. * As a result, the BOOT_PARTITION_ENABLE field of the PARTITION_CONFIG
  63. * is lost. This bug was fixed for PH1-Pro5 and later SoCs.
  64. *
  65. * Fixup mmc->part_config here because it is used to determine the
  66. * partition which the U-Boot image is read from.
  67. */
  68. mmc = find_mmc_device(0);
  69. mmc->part_config &= ~EXT_CSD_BOOT_PART_NUM(PART_ACCESS_MASK);
  70. mmc->part_config |= EXT_CSD_BOOT_PARTITION_ENABLE;
  71. return MMCSD_MODE_EMMCBOOT;
  72. }
  73. #if defined(CONFIG_DM_MMC) && !defined(CONFIG_SPL_BUILD)
  74. static int find_first_mmc_device(void)
  75. {
  76. struct mmc *mmc;
  77. int i;
  78. for (i = 0; (mmc = find_mmc_device(i)); i++) {
  79. if (!mmc_init(mmc) && IS_MMC(mmc))
  80. return i;
  81. }
  82. return -ENODEV;
  83. }
  84. int mmc_get_env_dev(void)
  85. {
  86. return find_first_mmc_device();
  87. }
  88. static int do_mmcsetn(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  89. {
  90. int dev;
  91. dev = find_first_mmc_device();
  92. if (dev < 0)
  93. return CMD_RET_FAILURE;
  94. setenv_ulong("mmc_first_dev", dev);
  95. return CMD_RET_SUCCESS;
  96. }
  97. U_BOOT_CMD(
  98. mmcsetn, 1, 1, do_mmcsetn,
  99. "Set the first MMC (not SD) dev number to \"mmc_first_dev\" environment",
  100. ""
  101. );
  102. #endif