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 */ 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 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 */ 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 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