1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* Copyright (C) 2020 IBM Corp. */ 3 4 #include <kunit/test.h> 5 6 static void aspeed_sdhci_phase_ddr52(struct kunit *test) 7 { 8 int rate = 52000000; 9 10 KUNIT_EXPECT_EQ(test, 0, 11 aspeed_sdhci_phase_to_tap(NULL, rate, 0)); 12 KUNIT_EXPECT_EQ(test, 0, 13 aspeed_sdhci_phase_to_tap(NULL, rate, 1)); 14 KUNIT_EXPECT_EQ(test, 1, 15 aspeed_sdhci_phase_to_tap(NULL, rate, 2)); 16 KUNIT_EXPECT_EQ(test, 1, 17 aspeed_sdhci_phase_to_tap(NULL, rate, 3)); 18 KUNIT_EXPECT_EQ(test, 2, 19 aspeed_sdhci_phase_to_tap(NULL, rate, 4)); 20 KUNIT_EXPECT_EQ(test, 3, 21 aspeed_sdhci_phase_to_tap(NULL, rate, 5)); 22 KUNIT_EXPECT_EQ(test, 14, 23 aspeed_sdhci_phase_to_tap(NULL, rate, 23)); 24 KUNIT_EXPECT_EQ(test, 15, 25 aspeed_sdhci_phase_to_tap(NULL, rate, 24)); 26 KUNIT_EXPECT_EQ(test, 15, 27 aspeed_sdhci_phase_to_tap(NULL, rate, 25)); 28 29 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 0, 30 aspeed_sdhci_phase_to_tap(NULL, rate, 180)); 31 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 0, 32 aspeed_sdhci_phase_to_tap(NULL, rate, 181)); 33 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, 34 aspeed_sdhci_phase_to_tap(NULL, rate, 182)); 35 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, 36 aspeed_sdhci_phase_to_tap(NULL, rate, 183)); 37 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 2, 38 aspeed_sdhci_phase_to_tap(NULL, rate, 184)); 39 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 3, 40 aspeed_sdhci_phase_to_tap(NULL, rate, 185)); 41 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 14, 42 aspeed_sdhci_phase_to_tap(NULL, rate, 203)); 43 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, 44 aspeed_sdhci_phase_to_tap(NULL, rate, 204)); 45 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, 46 aspeed_sdhci_phase_to_tap(NULL, rate, 205)); 47 } 48 49 static void aspeed_sdhci_phase_hs200(struct kunit *test) 50 { 51 int rate = 200000000; 52 53 KUNIT_EXPECT_EQ(test, 0, 54 aspeed_sdhci_phase_to_tap(NULL, rate, 0)); 55 KUNIT_EXPECT_EQ(test, 0, 56 aspeed_sdhci_phase_to_tap(NULL, rate, 5)); 57 KUNIT_EXPECT_EQ(test, 1, 58 aspeed_sdhci_phase_to_tap(NULL, rate, 6)); 59 KUNIT_EXPECT_EQ(test, 1, 60 aspeed_sdhci_phase_to_tap(NULL, rate, 7)); 61 KUNIT_EXPECT_EQ(test, 14, 62 aspeed_sdhci_phase_to_tap(NULL, rate, 89)); 63 KUNIT_EXPECT_EQ(test, 15, 64 aspeed_sdhci_phase_to_tap(NULL, rate, 90)); 65 KUNIT_EXPECT_EQ(test, 15, 66 aspeed_sdhci_phase_to_tap(NULL, rate, 91)); 67 KUNIT_EXPECT_EQ(test, 15, 68 aspeed_sdhci_phase_to_tap(NULL, rate, 96)); 69 70 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK, 71 aspeed_sdhci_phase_to_tap(NULL, rate, 180)); 72 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK, 73 aspeed_sdhci_phase_to_tap(NULL, rate, 185)); 74 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, 75 aspeed_sdhci_phase_to_tap(NULL, rate, 186)); 76 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 1, 77 aspeed_sdhci_phase_to_tap(NULL, rate, 187)); 78 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 14, 79 aspeed_sdhci_phase_to_tap(NULL, rate, 269)); 80 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, 81 aspeed_sdhci_phase_to_tap(NULL, rate, 270)); 82 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, 83 aspeed_sdhci_phase_to_tap(NULL, rate, 271)); 84 KUNIT_EXPECT_EQ(test, ASPEED_SDHCI_TAP_PARAM_INVERT_CLK | 15, 85 aspeed_sdhci_phase_to_tap(NULL, rate, 276)); 86 } 87 88 static struct kunit_case aspeed_sdhci_test_cases[] = { 89 KUNIT_CASE(aspeed_sdhci_phase_ddr52), 90 KUNIT_CASE(aspeed_sdhci_phase_hs200), 91 {} 92 }; 93 94 static struct kunit_suite aspeed_sdhci_test_suite = { 95 .name = "sdhci-of-aspeed", 96 .test_cases = aspeed_sdhci_test_cases, 97 }; 98 99 kunit_test_suite(aspeed_sdhci_test_suite); 100