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"Das U-Boot" Source Tree
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * Copyright (C) 2015 Google, Inc
4 */
5
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
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(-EPROTONOSUPPORT, sysreset_request(dev, SYSRESET_COLD));
30 ut_asserteq(-EPROTONOSUPPORT, 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(-EPROTONOSUPPORT, sysreset_request(dev, SYSRESET_WARM));
39 state->sysreset_allowed[SYSRESET_COLD] = false;
40 ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_COLD));
41 state->sysreset_allowed[SYSRESET_COLD] = true;
42 state->sysreset_allowed[SYSRESET_POWER] = false;
43 ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_POWER));
44 state->sysreset_allowed[SYSRESET_POWER] = true;
45
46 return 0;
47}
48DM_TEST(dm_test_sysreset_base, UTF_SCAN_PDATA | UTF_SCAN_FDT);
49
50static int dm_test_sysreset_get_status(struct unit_test_state *uts)
51{
52 struct udevice *dev;
53 char msg[64];
54
55 /* Device 1 is the warm sysreset device */
56 ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
57 ut_assertok(sysreset_get_status(dev, msg, sizeof(msg)));
58 ut_asserteq_str("Reset Status: WARM", msg);
59
60 /* Device 2 is the cold sysreset device */
61 ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
62 ut_assertok(sysreset_get_status(dev, msg, sizeof(msg)));
63 ut_asserteq_str("Reset Status: COLD", msg);
64
65 return 0;
66}
67DM_TEST(dm_test_sysreset_get_status, UTF_SCAN_PDATA | UTF_SCAN_FDT);
68
69/* Test that we can walk through the sysreset devices */
70static int dm_test_sysreset_walk(struct unit_test_state *uts)
71{
72 struct sandbox_state *state = state_get_current();
73
74 /* If we generate a power sysreset, we will exit sandbox! */
75 state->sysreset_allowed[SYSRESET_WARM] = false;
76 state->sysreset_allowed[SYSRESET_COLD] = false;
77 state->sysreset_allowed[SYSRESET_POWER] = false;
78 state->sysreset_allowed[SYSRESET_POWER_OFF] = false;
79 ut_asserteq(-EACCES, sysreset_walk(SYSRESET_WARM));
80 ut_asserteq(-EACCES, sysreset_walk(SYSRESET_COLD));
81 ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
82 ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER_OFF));
83
84 /*
85 * Enable cold system reset - this should make cold system reset work,
86 * plus a warm system reset should be promoted to cold, since this is
87 * the next step along.
88 */
89 state->sysreset_allowed[SYSRESET_WARM] = true;
90 ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_WARM));
91 ut_asserteq(-EACCES, sysreset_walk(SYSRESET_COLD));
92 ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
93 state->sysreset_allowed[SYSRESET_COLD] = true;
94 state->sysreset_allowed[SYSRESET_POWER] = true;
95
96 return 0;
97}
98DM_TEST(dm_test_sysreset_walk, UTF_SCAN_PDATA | UTF_SCAN_FDT);
99
100static int dm_test_sysreset_get_last(struct unit_test_state *uts)
101{
102 struct udevice *dev;
103
104 /* Device 1 is the warm sysreset device */
105 ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
106 ut_asserteq(SYSRESET_WARM, sysreset_get_last(dev));
107
108 /* Device 2 is the cold sysreset device */
109 ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
110 ut_asserteq(SYSRESET_POWER, sysreset_get_last(dev));
111
112 /* This is device 0, the non-DT one */
113 ut_asserteq(SYSRESET_POWER, sysreset_get_last_walk());
114
115 return 0;
116}
117DM_TEST(dm_test_sysreset_get_last, UTF_SCAN_PDATA | UTF_SCAN_FDT);