spl.c 3.3 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright 2014-2015 Freescale Semiconductor, Inc.
  4. */
  5. #include <common.h>
  6. #include <clock_legacy.h>
  7. #include <cpu_func.h>
  8. #include <env.h>
  9. #include <image.h>
  10. #include <init.h>
  11. #include <log.h>
  12. #include <spl.h>
  13. #include <asm/cache.h>
  14. #include <asm/io.h>
  15. #include <fsl_ifc.h>
  16. #include <i2c.h>
  17. #include <fsl_csu.h>
  18. #include <asm/arch/fdt.h>
  19. #include <asm/arch/ppa.h>
  20. #include <asm/arch/soc.h>
  21. DECLARE_GLOBAL_DATA_PTR;
  22. u32 spl_boot_device(void)
  23. {
  24. #ifdef CONFIG_SPL_MMC_SUPPORT
  25. return BOOT_DEVICE_MMC1;
  26. #endif
  27. #ifdef CONFIG_SPL_NAND_SUPPORT
  28. return BOOT_DEVICE_NAND;
  29. #endif
  30. #ifdef CONFIG_QSPI_BOOT
  31. return BOOT_DEVICE_NOR;
  32. #endif
  33. return 0;
  34. }
  35. #ifdef CONFIG_SPL_BUILD
  36. void spl_board_init(void)
  37. {
  38. #if defined(CONFIG_NXP_ESBC) && defined(CONFIG_FSL_LSCH2)
  39. /*
  40. * In case of Secure Boot, the IBR configures the SMMU
  41. * to allow only Secure transactions.
  42. * SMMU must be reset in bypass mode.
  43. * Set the ClientPD bit and Clear the USFCFG Bit
  44. */
  45. u32 val;
  46. val = (in_le32(SMMU_SCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
  47. out_le32(SMMU_SCR0, val);
  48. val = (in_le32(SMMU_NSCR0) | SCR0_CLIENTPD_MASK) & ~(SCR0_USFCFG_MASK);
  49. out_le32(SMMU_NSCR0, val);
  50. #endif
  51. #ifdef CONFIG_LAYERSCAPE_NS_ACCESS
  52. enable_layerscape_ns_access();
  53. #endif
  54. #ifdef CONFIG_SPL_FSL_LS_PPA
  55. ppa_init();
  56. #endif
  57. }
  58. void board_init_f(ulong dummy)
  59. {
  60. icache_enable();
  61. /* Clear global data */
  62. memset((void *)gd, 0, sizeof(gd_t));
  63. board_early_init_f();
  64. timer_init();
  65. #ifdef CONFIG_ARCH_LS2080A
  66. env_init();
  67. #endif
  68. get_clocks();
  69. preloader_console_init();
  70. spl_set_bd();
  71. #ifdef CONFIG_SYS_I2C
  72. #ifdef CONFIG_SPL_I2C_SUPPORT
  73. i2c_init_all();
  74. #endif
  75. #endif
  76. #ifdef CONFIG_VID
  77. init_func_vid();
  78. #endif
  79. dram_init();
  80. #ifdef CONFIG_SPL_FSL_LS_PPA
  81. #ifndef CONFIG_SYS_MEM_RESERVE_SECURE
  82. #error Need secure RAM for PPA
  83. #endif
  84. /*
  85. * Secure memory location is determined in dram_init_banksize().
  86. * gd->ram_size is deducted by the size of secure ram.
  87. */
  88. dram_init_banksize();
  89. /*
  90. * After dram_init_bank_size(), we know U-Boot only uses the first
  91. * memory bank regardless how big the memory is.
  92. */
  93. gd->ram_top = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size;
  94. /*
  95. * If PPA is loaded, U-Boot will resume running at EL2.
  96. * Cache and MMU will be enabled. Need a place for TLB.
  97. * U-Boot will be relocated to the end of available memory
  98. * in first bank. At this point, we cannot know how much
  99. * memory U-Boot uses. Put TLB table lower by SPL_TLB_SETBACK
  100. * to avoid overlapping. As soon as the RAM version U-Boot sets
  101. * up new MMU, this space is no longer needed.
  102. */
  103. gd->ram_top -= SPL_TLB_SETBACK;
  104. gd->arch.tlb_size = PGTABLE_SIZE;
  105. gd->arch.tlb_addr = (gd->ram_top - gd->arch.tlb_size) & ~(0x10000 - 1);
  106. gd->arch.tlb_allocated = gd->arch.tlb_addr;
  107. #endif /* CONFIG_SPL_FSL_LS_PPA */
  108. #if defined(CONFIG_QSPI_AHB_INIT) && defined(CONFIG_QSPI_BOOT)
  109. qspi_ahb_init();
  110. #endif
  111. }
  112. #ifdef CONFIG_SPL_OS_BOOT
  113. /*
  114. * Return
  115. * 0 if booting into OS is selected
  116. * 1 if booting into U-Boot is selected
  117. */
  118. int spl_start_uboot(void)
  119. {
  120. env_init();
  121. if (env_get_yesno("boot_os") != 0)
  122. return 0;
  123. return 1;
  124. }
  125. #endif /* CONFIG_SPL_OS_BOOT */
  126. #ifdef CONFIG_SPL_LOAD_FIT
  127. __weak int board_fit_config_name_match(const char *name)
  128. {
  129. /* Just empty function now - can't decide what to choose */
  130. debug("%s: %s\n", __func__, name);
  131. return 0;
  132. }
  133. #endif
  134. #endif /* CONFIG_SPL_BUILD */