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 */
dm_test_sysreset_base(struct unit_test_state * uts)15 static 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 }
46 DM_TEST(dm_test_sysreset_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
47
dm_test_sysreset_get_status(struct unit_test_state * uts)48 static 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 }
65 DM_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 */
dm_test_sysreset_walk(struct unit_test_state * uts)68 static 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 }
93 DM_TEST(dm_test_sysreset_walk, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
94
dm_test_sysreset_get_last(struct unit_test_state * uts)95 static 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 }
112 DM_TEST(dm_test_sysreset_get_last, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
113