1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) 2015 Google, Inc
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <dm.h>
9*4882a593Smuzhiyun #include <sysreset.h>
10*4882a593Smuzhiyun #include <asm/state.h>
11*4882a593Smuzhiyun #include <asm/test.h>
12*4882a593Smuzhiyun #include <dm/test.h>
13*4882a593Smuzhiyun #include <test/ut.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun /* Test that we can use particular sysreset devices */
dm_test_sysreset_base(struct unit_test_state * uts)16*4882a593Smuzhiyun static int dm_test_sysreset_base(struct unit_test_state *uts)
17*4882a593Smuzhiyun {
18*4882a593Smuzhiyun struct sandbox_state *state = state_get_current();
19*4882a593Smuzhiyun struct udevice *dev;
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun /* Device 0 is the platform data device - it should never respond */
22*4882a593Smuzhiyun ut_assertok(uclass_get_device(UCLASS_SYSRESET, 0, &dev));
23*4882a593Smuzhiyun ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_WARM));
24*4882a593Smuzhiyun ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_COLD));
25*4882a593Smuzhiyun ut_asserteq(-ENODEV, sysreset_request(dev, SYSRESET_POWER));
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun /* Device 1 is the warm sysreset device */
28*4882a593Smuzhiyun ut_assertok(uclass_get_device(UCLASS_SYSRESET, 1, &dev));
29*4882a593Smuzhiyun ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_WARM));
30*4882a593Smuzhiyun ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_COLD));
31*4882a593Smuzhiyun ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_POWER));
32*4882a593Smuzhiyun
33*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_WARM] = true;
34*4882a593Smuzhiyun ut_asserteq(-EINPROGRESS, sysreset_request(dev, SYSRESET_WARM));
35*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_WARM] = false;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun /* Device 2 is the cold sysreset device */
38*4882a593Smuzhiyun ut_assertok(uclass_get_device(UCLASS_SYSRESET, 2, &dev));
39*4882a593Smuzhiyun ut_asserteq(-ENOSYS, sysreset_request(dev, SYSRESET_WARM));
40*4882a593Smuzhiyun ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_COLD));
41*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_POWER] = false;
42*4882a593Smuzhiyun ut_asserteq(-EACCES, sysreset_request(dev, SYSRESET_POWER));
43*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_POWER] = true;
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun return 0;
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun DM_TEST(dm_test_sysreset_base, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun /* Test that we can walk through the sysreset devices */
dm_test_sysreset_walk(struct unit_test_state * uts)50*4882a593Smuzhiyun static int dm_test_sysreset_walk(struct unit_test_state *uts)
51*4882a593Smuzhiyun {
52*4882a593Smuzhiyun struct sandbox_state *state = state_get_current();
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun /* If we generate a power sysreset, we will exit sandbox! */
55*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_POWER] = false;
56*4882a593Smuzhiyun ut_asserteq(-EACCES, sysreset_walk(SYSRESET_WARM));
57*4882a593Smuzhiyun ut_asserteq(-EACCES, sysreset_walk(SYSRESET_COLD));
58*4882a593Smuzhiyun ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun /*
61*4882a593Smuzhiyun * Enable cold system reset - this should make cold system reset work,
62*4882a593Smuzhiyun * plus a warm system reset should be promoted to cold, since this is
63*4882a593Smuzhiyun * the next step along.
64*4882a593Smuzhiyun */
65*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_COLD] = true;
66*4882a593Smuzhiyun ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_WARM));
67*4882a593Smuzhiyun ut_asserteq(-EINPROGRESS, sysreset_walk(SYSRESET_COLD));
68*4882a593Smuzhiyun ut_asserteq(-EACCES, sysreset_walk(SYSRESET_POWER));
69*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_COLD] = false;
70*4882a593Smuzhiyun state->sysreset_allowed[SYSRESET_POWER] = true;
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun return 0;
73*4882a593Smuzhiyun }
74*4882a593Smuzhiyun DM_TEST(dm_test_sysreset_walk, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
75