LXR uboot/test/dm/sysreset.c

   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2015 Google, Inc
   4 */
   5
   6#include <common.h>
   7#include <dm.h>
   8#include <sysreset.h>
   9#include <asm/state.h>
  10#include <asm/test.h>
  11#include <dm/test.h>
  12#include <test/ut.h>
  13
  14/* Test that we can use particular sysreset devices */
  15static int dm_test_sysreset_base(struct unit_test_state *uts)
  16{
  17        struct sandbox_state *state = state_get_current();
  18        struct udevice *dev;
  19
  20        /* Device 0 is the platform data device - it should never respond */
  21        ut_assertok(uclass_get_device(UCLASS_SYSRESET, 0, &dev));
  22        ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_WARM));
  23        ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_COLD));
  24        ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_POWER));
  25
  26        /* Device 1 is the warm sysreset device */
  27        ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
  28        ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_WARM));
  29        ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_COLD));
  30        ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_POWER));
  31
  32        state->sysreset_allowed[SYSRESET_WARM] = true;
  33        ut_asserteq(-EINPROGRESS, sysreset_request(dev, SYSRESET_WARM));
  34        state->sysreset_allowed[SYSRESET_WARM] = false;
  35
  36        /* Device 2 is the cold sysreset device */
  37        ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
  38        ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_WARM));
  39        ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_COLD));
  40        state->sysreset_allowed[SYSRESET_POWER] = false;
  41        ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_POWER));
  42        state->sysreset_allowed[SYSRESET_POWER] = true;
  43
  44        return 0;
  45}
  46DM_TEST(dm_test_sysreset_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  47
  48static int dm_test_sysreset_get_status(struct unit_test_state *uts)
  49{
  50        struct udevice *dev;
  51        char msg[64];
  52
  53        /* Device 1 is the warm sysreset device */
  54        ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
  55        ut_assertok(sysreset_get_status(dev, msg, sizeof(msg)));
  56        ut_asserteq_str("Reset Status: WARM", msg);
  57
  58        /* Device 2 is the cold sysreset device */
  59        ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
  60        ut_assertok(sysreset_get_status(dev, msg, sizeof(msg)));
  61        ut_asserteq_str("Reset Status: COLD", msg);
  62
  63        return 0;
  64}
  65DM_TEST(dm_test_sysreset_get_status, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  66
  67/* Test that we can walk through the sysreset devices */
  68static int dm_test_sysreset_walk(struct unit_test_state *uts)
  69{
  70        struct sandbox_state *state = state_get_current();
  71
  72        /* If we generate a power sysreset, we will exit sandbox! */
  73        state->sysreset_allowed[SYSRESET_POWER] = false;
  74        state->sysreset_allowed[SYSRESET_POWER_OFF] = false;
  75        ut_asserteq(-EACCES, sysreset_walk(SYSRESET_WARM));
  76        ut_asserteq(-EACCES, sysreset_walk(SYSRESET_COLD));
  77        ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
  78
  79        /*
  80         * Enable cold system reset - this should make cold system reset work,
  81         * plus a warm system reset should be promoted to cold, since this is
  82         * the next step along.
  83         */
  84        state->sysreset_allowed[SYSRESET_COLD] = true;
  85        ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_WARM));
  86        ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_COLD));
  87        ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
  88        state->sysreset_allowed[SYSRESET_COLD] = false;
  89        state->sysreset_allowed[SYSRESET_POWER] = true;
  90
  91        return 0;
  92}
  93DM_TEST(dm_test_sysreset_walk, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
  94
  95static int dm_test_sysreset_get_last(struct unit_test_state *uts)
  96{
  97        struct udevice *dev;
  98
  99        /* Device 1 is the warm sysreset device */
 100        ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
 101        ut_asserteq(SYSRESET_WARM, sysreset_get_last(dev));
 102
 103        /* Device 2 is the cold sysreset device */
 104        ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
 105        ut_asserteq(SYSRESET_POWER, sysreset_get_last(dev));
 106
 107        /* This is device 0, the non-DT one */
 108        ut_asserteq(SYSRESET_POWER, sysreset_get_last_walk());
 109
 110        return 0;
 111}
 112DM_TEST(dm_test_sysreset_get_last, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 113