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