Sean Anderson | 0c1f6bf | 2020-06-24 06:41:14 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Copyright (C) 2020 Sean Anderson <seanga2@gmail.com> |
| 4 | */ |
| 5 | |
Sean Anderson | 0c1f6bf | 2020-06-24 06:41:14 -0400 | [diff] [blame] | 6 | #include <dm.h> |
| 7 | #include <dm/test.h> |
| 8 | #include <regmap.h> |
| 9 | #include <reset.h> |
| 10 | #include <syscon.h> |
| 11 | #include <test/ut.h> |
| 12 | #include <asm/test.h> |
| 13 | #include <linux/bitops.h> |
| 14 | |
| 15 | /* The following values must match the device tree */ |
| 16 | #define TEST_RESET_REG 1 |
| 17 | #define TEST_RESET_ASSERT_HIGH 0 |
| 18 | #define TEST_RESET_ASSERT (TEST_RESET_ASSERT_HIGH ? (u32)-1 : (u32)0) |
| 19 | #define TEST_RESET_DEASSERT (~TEST_RESET_ASSERT) |
| 20 | |
| 21 | #define TEST_RESET_VALID 15 |
| 22 | #define TEST_RESET_NOMASK 30 |
| 23 | #define TEST_RESET_OUTOFRANGE 60 |
| 24 | |
| 25 | static int dm_test_syscon_reset(struct unit_test_state *uts) |
| 26 | { |
| 27 | struct regmap *map; |
| 28 | struct reset_ctl rst; |
| 29 | struct udevice *reset; |
| 30 | struct udevice *syscon; |
| 31 | struct udevice *syscon_reset; |
| 32 | uint reg; |
| 33 | |
| 34 | ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "syscon-reset-test", |
| 35 | &reset)); |
| 36 | ut_assertok(uclass_get_device_by_name(UCLASS_SYSCON, "syscon@0", |
| 37 | &syscon)); |
| 38 | ut_assertok(uclass_get_device_by_name(UCLASS_RESET, "syscon-reset", |
| 39 | &syscon_reset)); |
| 40 | ut_assertok_ptr((map = syscon_get_regmap(syscon))); |
| 41 | |
| 42 | ut_asserteq(-EINVAL, reset_get_by_name(reset, "no_mask", &rst)); |
| 43 | ut_asserteq(-EINVAL, reset_get_by_name(reset, "out_of_range", &rst)); |
| 44 | ut_assertok(reset_get_by_name(reset, "valid", &rst)); |
| 45 | |
| 46 | sandbox_set_enable_memio(true); |
| 47 | ut_assertok(regmap_write(map, TEST_RESET_REG, TEST_RESET_DEASSERT)); |
| 48 | ut_assertok(reset_assert(&rst)); |
| 49 | ut_assertok(regmap_read(map, TEST_RESET_REG, ®)); |
| 50 | ut_asserteq(TEST_RESET_DEASSERT ^ BIT(TEST_RESET_VALID), reg); |
| 51 | |
| 52 | ut_assertok(reset_deassert(&rst)); |
| 53 | ut_assertok(regmap_read(map, TEST_RESET_REG, ®)); |
| 54 | ut_asserteq(TEST_RESET_DEASSERT, reg); |
| 55 | |
| 56 | return 0; |
| 57 | } |
Simon Glass | 974dccd | 2020-07-28 19:41:12 -0600 | [diff] [blame] | 58 | DM_TEST(dm_test_syscon_reset, UT_TESTF_SCAN_FDT); |