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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 | // SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2020, Linaro Limited * * Tests scmi_agent uclass and the SCMI drivers implemented in other * uclass devices probe when a SCMI server exposes resources. * * Note in test.dts the protocol@10 node in agent 1. Protocol 0x10 is not * implemented in U-Boot SCMI components but the implementation is exepected * to not complain on unknown protocol IDs, as long as it is not used. Note * in test.dts tests that SCMI drivers probing does not fail for such an * unknown SCMI protocol ID. */ #include <common.h> #include <clk.h> #include <dm.h> #include <reset.h> #include <asm/scmi_test.h> #include <dm/device-internal.h> #include <dm/test.h> #include <linux/kconfig.h> #include <test/ut.h> static int ut_assert_scmi_state_preprobe(struct unit_test_state *uts) { struct sandbox_scmi_service *scmi_ctx = sandbox_scmi_service_ctx(); ut_assertnonnull(scmi_ctx); if (scmi_ctx->agent_count) ut_asserteq(2, scmi_ctx->agent_count); return 0; } static int ut_assert_scmi_state_postprobe(struct unit_test_state *uts, struct udevice *dev) { struct sandbox_scmi_devices *scmi_devices; struct sandbox_scmi_service *scmi_ctx; /* Device references to check context against test sequence */ scmi_devices = sandbox_scmi_devices_ctx(dev); ut_assertnonnull(scmi_devices); if (IS_ENABLED(CONFIG_CLK_SCMI)) ut_asserteq(3, scmi_devices->clk_count); if (IS_ENABLED(CONFIG_RESET_SCMI)) ut_asserteq(1, scmi_devices->reset_count); /* State of the simulated SCMI server exposed */ scmi_ctx = sandbox_scmi_service_ctx(); ut_asserteq(2, scmi_ctx->agent_count); ut_assertnonnull(scmi_ctx->agent[0]); ut_asserteq(2, scmi_ctx->agent[0]->clk_count); ut_assertnonnull(scmi_ctx->agent[0]->clk); ut_asserteq(1, scmi_ctx->agent[0]->reset_count); ut_assertnonnull(scmi_ctx->agent[0]->reset); ut_assertnonnull(scmi_ctx->agent[1]); ut_assertnonnull(scmi_ctx->agent[1]->clk); ut_asserteq(1, scmi_ctx->agent[1]->clk_count); return 0; } static int load_sandbox_scmi_test_devices(struct unit_test_state *uts, struct udevice **dev) { int ret; ret = ut_assert_scmi_state_preprobe(uts); if (ret) return ret; ut_assertok(uclass_get_device_by_name(UCLASS_MISC, "sandbox_scmi", dev)); ut_assertnonnull(*dev); return ut_assert_scmi_state_postprobe(uts, *dev); } static int release_sandbox_scmi_test_devices(struct unit_test_state *uts, struct udevice *dev) { ut_assertok(device_remove(dev, DM_REMOVE_NORMAL)); /* Not sure test devices are fully removed, agent may not be visible */ return 0; } /* * Test SCMI states when loading and releasing resources * related to SCMI drivers. */ static int dm_test_scmi_sandbox_agent(struct unit_test_state *uts) { struct udevice *dev = NULL; int ret; ret = load_sandbox_scmi_test_devices(uts, &dev); if (!ret) ret = release_sandbox_scmi_test_devices(uts, dev); return ret; } DM_TEST(dm_test_scmi_sandbox_agent, UT_TESTF_SCAN_FDT); static int dm_test_scmi_clocks(struct unit_test_state *uts) { struct sandbox_scmi_devices *scmi_devices; struct sandbox_scmi_service *scmi_ctx; struct udevice *dev = NULL; int ret_dev; int ret; if (!IS_ENABLED(CONFIG_CLK_SCMI)) return 0; ret = load_sandbox_scmi_test_devices(uts, &dev); if (ret) return ret; scmi_devices = sandbox_scmi_devices_ctx(dev); scmi_ctx = sandbox_scmi_service_ctx(); /* Test SCMI clocks rate manipulation */ ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0])); ut_asserteq(333, clk_get_rate(&scmi_devices->clk[1])); ut_asserteq(44, clk_get_rate(&scmi_devices->clk[2])); ret_dev = clk_set_rate(&scmi_devices->clk[1], 1088); ut_assert(!ret_dev || ret_dev == 1088); ut_asserteq(1000, scmi_ctx->agent[0]->clk[0].rate); ut_asserteq(1088, scmi_ctx->agent[0]->clk[1].rate); ut_asserteq(44, scmi_ctx->agent[1]->clk[0].rate); ut_asserteq(1000, clk_get_rate(&scmi_devices->clk[0])); ut_asserteq(1088, clk_get_rate(&scmi_devices->clk[1])); ut_asserteq(44, clk_get_rate(&scmi_devices->clk[2])); /* restore original rate for further tests */ ret_dev = clk_set_rate(&scmi_devices->clk[1], 333); ut_assert(!ret_dev || ret_dev == 333); /* Test SCMI clocks gating manipulation */ ut_assert(!scmi_ctx->agent[0]->clk[0].enabled); ut_assert(!scmi_ctx->agent[0]->clk[1].enabled); ut_assert(!scmi_ctx->agent[1]->clk[0].enabled); ut_asserteq(0, clk_enable(&scmi_devices->clk[1])); ut_asserteq(0, clk_enable(&scmi_devices->clk[2])); ut_assert(!scmi_ctx->agent[0]->clk[0].enabled); ut_assert(scmi_ctx->agent[0]->clk[1].enabled); ut_assert(scmi_ctx->agent[1]->clk[0].enabled); ut_assertok(clk_disable(&scmi_devices->clk[1])); ut_assertok(clk_disable(&scmi_devices->clk[2])); ut_assert(!scmi_ctx->agent[0]->clk[0].enabled); ut_assert(!scmi_ctx->agent[0]->clk[1].enabled); ut_assert(!scmi_ctx->agent[1]->clk[0].enabled); return release_sandbox_scmi_test_devices(uts, dev); } DM_TEST(dm_test_scmi_clocks, UT_TESTF_SCAN_FDT); static int dm_test_scmi_resets(struct unit_test_state *uts) { struct sandbox_scmi_devices *scmi_devices; struct sandbox_scmi_service *scmi_ctx; struct udevice *dev = NULL; int ret; if (!IS_ENABLED(CONFIG_RESET_SCMI)) return 0; ret = load_sandbox_scmi_test_devices(uts, &dev); if (ret) return ret; scmi_devices = sandbox_scmi_devices_ctx(dev); scmi_ctx = sandbox_scmi_service_ctx(); /* Test SCMI resect controller manipulation */ ut_assert(!scmi_ctx->agent[0]->reset[0].asserted) ut_assertok(reset_assert(&scmi_devices->reset[0])); ut_assert(scmi_ctx->agent[0]->reset[0].asserted) ut_assertok(reset_deassert(&scmi_devices->reset[0])); ut_assert(!scmi_ctx->agent[0]->reset[0].asserted); return release_sandbox_scmi_test_devices(uts, dev); } DM_TEST(dm_test_scmi_resets, UT_TESTF_SCAN_FDT); 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