sf.c 3.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2013 Google, Inc
  4. */
  5. #include <common.h>
  6. #include <command.h>
  7. #include <dm.h>
  8. #include <fdtdec.h>
  9. #include <mapmem.h>
  10. #include <os.h>
  11. #include <spi.h>
  12. #include <spi_flash.h>
  13. #include <asm/state.h>
  14. #include <asm/test.h>
  15. #include <dm/test.h>
  16. #include <dm/util.h>
  17. #include <test/ut.h>
  18. /* Simple test of sandbox SPI flash */
  19. static int dm_test_spi_flash(struct unit_test_state *uts)
  20. {
  21. struct udevice *dev, *emul;
  22. int full_size = 0x200000;
  23. int size = 0x10000;
  24. u8 *src, *dst;
  25. uint map_size;
  26. ulong map_base;
  27. uint offset;
  28. int i;
  29. src = map_sysmem(0x20000, full_size);
  30. ut_assertok(os_write_file("spi.bin", src, full_size));
  31. ut_assertok(uclass_first_device_err(UCLASS_SPI_FLASH, &dev));
  32. dst = map_sysmem(0x20000 + full_size, full_size);
  33. ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
  34. ut_assertok(memcmp(src, dst, size));
  35. /* Erase */
  36. ut_assertok(spi_flash_erase_dm(dev, 0, size));
  37. ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
  38. for (i = 0; i < size; i++)
  39. ut_asserteq(dst[i], 0xff);
  40. /* Write some new data */
  41. for (i = 0; i < size; i++)
  42. src[i] = i;
  43. ut_assertok(spi_flash_write_dm(dev, 0, size, src));
  44. ut_assertok(spi_flash_read_dm(dev, 0, size, dst));
  45. ut_assertok(memcmp(src, dst, size));
  46. /* Try the write-protect stuff */
  47. ut_assertok(uclass_first_device_err(UCLASS_SPI_EMUL, &emul));
  48. ut_asserteq(0, spl_flash_get_sw_write_prot(dev));
  49. sandbox_sf_set_block_protect(emul, 1);
  50. ut_asserteq(1, spl_flash_get_sw_write_prot(dev));
  51. sandbox_sf_set_block_protect(emul, 0);
  52. ut_asserteq(0, spl_flash_get_sw_write_prot(dev));
  53. /* Check mapping */
  54. ut_assertok(dm_spi_get_mmap(dev, &map_base, &map_size, &offset));
  55. ut_asserteq(0x1000, map_base);
  56. ut_asserteq(0x2000, map_size);
  57. ut_asserteq(0x100, offset);
  58. /*
  59. * Since we are about to destroy all devices, we must tell sandbox
  60. * to forget the emulation device
  61. */
  62. sandbox_sf_unbind_emul(state_get_current(), 0, 0);
  63. return 0;
  64. }
  65. DM_TEST(dm_test_spi_flash, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  66. /* Functional test that sandbox SPI flash works correctly */
  67. static int dm_test_spi_flash_func(struct unit_test_state *uts)
  68. {
  69. /*
  70. * Create an empty test file and run the SPI flash tests. This is a
  71. * long way from being a unit test, but it does test SPI device and
  72. * emulator binding, probing, the SPI flash emulator including
  73. * device tree decoding, plus the file-based backing store of SPI.
  74. *
  75. * More targeted tests could be created to perform the above steps
  76. * one at a time. This might not increase test coverage much, but
  77. * it would make bugs easier to find. It's not clear whether the
  78. * benefit is worth the extra complexity.
  79. */
  80. ut_asserteq(0, run_command_list(
  81. "host save hostfs - 0 spi.bin 200000;"
  82. "sf probe;"
  83. "sf test 0 10000", -1, 0));
  84. /*
  85. * Since we are about to destroy all devices, we must tell sandbox
  86. * to forget the emulation device
  87. */
  88. sandbox_sf_unbind_emul(state_get_current(), 0, 0);
  89. return 0;
  90. }
  91. DM_TEST(dm_test_spi_flash_func, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);