sysreset.c 3.9 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright (C) 2015 Google, Inc
  4. */
  5. #include <common.h>
  6. #include <dm.h>
  7. #include <sysreset.h>
  8. #include <asm/state.h>
  9. #include <asm/test.h>
  10. #include <dm/test.h>
  11. #include <test/test.h>
  12. #include <test/ut.h>
  13. /* Test that we can use particular sysreset devices */
  14. static int dm_test_sysreset_base(struct unit_test_state *uts)
  15. {
  16. struct sandbox_state *state = state_get_current();
  17. struct udevice *dev;
  18. /* Device 0 is the platform data device - it should never respond */
  19. ut_assertok(uclass_get_device(UCLASS_SYSRESET, 0, &dev));
  20. ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_WARM));
  21. ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_COLD));
  22. ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_POWER));
  23. /* Device 1 is the warm sysreset device */
  24. ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
  25. ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_WARM));
  26. ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_COLD));
  27. ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_POWER));
  28. state->sysreset_allowed[SYSRESET_WARM] = true;
  29. ut_asserteq(-EINPROGRESS, sysreset_request(dev, SYSRESET_WARM));
  30. state->sysreset_allowed[SYSRESET_WARM] = false;
  31. /* Device 2 is the cold sysreset device */
  32. ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
  33. ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_WARM));
  34. ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_COLD));
  35. state->sysreset_allowed[SYSRESET_POWER] = false;
  36. ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_POWER));
  37. state->sysreset_allowed[SYSRESET_POWER] = true;
  38. return 0;
  39. }
  40. DM_TEST(dm_test_sysreset_base, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  41. static int dm_test_sysreset_get_status(struct unit_test_state *uts)
  42. {
  43. struct udevice *dev;
  44. char msg[64];
  45. /* Device 1 is the warm sysreset device */
  46. ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
  47. ut_assertok(sysreset_get_status(dev, msg, sizeof(msg)));
  48. ut_asserteq_str("Reset Status: WARM", msg);
  49. /* Device 2 is the cold sysreset device */
  50. ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
  51. ut_assertok(sysreset_get_status(dev, msg, sizeof(msg)));
  52. ut_asserteq_str("Reset Status: COLD", msg);
  53. return 0;
  54. }
  55. DM_TEST(dm_test_sysreset_get_status, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  56. /* Test that we can walk through the sysreset devices */
  57. static int dm_test_sysreset_walk(struct unit_test_state *uts)
  58. {
  59. struct sandbox_state *state = state_get_current();
  60. /* If we generate a power sysreset, we will exit sandbox! */
  61. state->sysreset_allowed[SYSRESET_POWER] = false;
  62. state->sysreset_allowed[SYSRESET_POWER_OFF] = false;
  63. ut_asserteq(-EACCES, sysreset_walk(SYSRESET_WARM));
  64. ut_asserteq(-EACCES, sysreset_walk(SYSRESET_COLD));
  65. ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
  66. /*
  67. * Enable cold system reset - this should make cold system reset work,
  68. * plus a warm system reset should be promoted to cold, since this is
  69. * the next step along.
  70. */
  71. state->sysreset_allowed[SYSRESET_COLD] = true;
  72. ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_WARM));
  73. ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_COLD));
  74. ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
  75. state->sysreset_allowed[SYSRESET_COLD] = false;
  76. state->sysreset_allowed[SYSRESET_POWER] = true;
  77. return 0;
  78. }
  79. DM_TEST(dm_test_sysreset_walk, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
  80. static int dm_test_sysreset_get_last(struct unit_test_state *uts)
  81. {
  82. struct udevice *dev;
  83. /* Device 1 is the warm sysreset device */
  84. ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
  85. ut_asserteq(SYSRESET_WARM, sysreset_get_last(dev));
  86. /* Device 2 is the cold sysreset device */
  87. ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
  88. ut_asserteq(SYSRESET_POWER, sysreset_get_last(dev));
  89. /* This is device 0, the non-DT one */
  90. ut_asserteq(SYSRESET_POWER, sysreset_get_last_walk());
  91. return 0;
  92. }
  93. DM_TEST(dm_test_sysreset_get_last, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);