qemu-arm.c 1.8 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (c) 2017 Tuomas Tynkkynen
  4. */
  5. #include <common.h>
  6. #include <dm.h>
  7. #include <fdtdec.h>
  8. #include <virtio_types.h>
  9. #include <virtio.h>
  10. #ifdef CONFIG_ARM64
  11. #include <asm/armv8/mmu.h>
  12. static struct mm_region qemu_arm64_mem_map[] = {
  13. {
  14. /* Flash */
  15. .virt = 0x00000000UL,
  16. .phys = 0x00000000UL,
  17. .size = 0x08000000UL,
  18. .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  19. PTE_BLOCK_INNER_SHARE
  20. }, {
  21. /* Lowmem peripherals */
  22. .virt = 0x08000000UL,
  23. .phys = 0x08000000UL,
  24. .size = 0x38000000,
  25. .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  26. PTE_BLOCK_NON_SHARE |
  27. PTE_BLOCK_PXN | PTE_BLOCK_UXN
  28. }, {
  29. /* RAM */
  30. .virt = 0x40000000UL,
  31. .phys = 0x40000000UL,
  32. .size = 255UL * SZ_1G,
  33. .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
  34. PTE_BLOCK_INNER_SHARE
  35. }, {
  36. /* Highmem PCI-E ECAM memory area */
  37. .virt = 0x4010000000ULL,
  38. .phys = 0x4010000000ULL,
  39. .size = 0x10000000,
  40. .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  41. PTE_BLOCK_NON_SHARE |
  42. PTE_BLOCK_PXN | PTE_BLOCK_UXN
  43. }, {
  44. /* Highmem PCI-E MMIO memory area */
  45. .virt = 0x8000000000ULL,
  46. .phys = 0x8000000000ULL,
  47. .size = 0x8000000000ULL,
  48. .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
  49. PTE_BLOCK_NON_SHARE |
  50. PTE_BLOCK_PXN | PTE_BLOCK_UXN
  51. }, {
  52. /* List terminator */
  53. 0,
  54. }
  55. };
  56. struct mm_region *mem_map = qemu_arm64_mem_map;
  57. #endif
  58. int board_init(void)
  59. {
  60. /*
  61. * Make sure virtio bus is enumerated so that peripherals
  62. * on the virtio bus can be discovered by their drivers
  63. */
  64. virtio_init();
  65. return 0;
  66. }
  67. int dram_init(void)
  68. {
  69. if (fdtdec_setup_mem_size_base() != 0)
  70. return -EINVAL;
  71. return 0;
  72. }
  73. int dram_init_banksize(void)
  74. {
  75. fdtdec_setup_memory_banksize();
  76. return 0;
  77. }
  78. void *board_fdt_blob_setup(void)
  79. {
  80. /* QEMU loads a generated DTB for us at the start of RAM. */
  81. return (void *)CONFIG_SYS_SDRAM_BASE;
  82. }