test/dm/test-fdt.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2013 Google, Inc
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <errno.h>
   9 #include <fdtdec.h>
  10 #include <log.h>
  11 #include <malloc.h>
  12 #include <asm/io.h>
  13 #include <dm/test.h>
  14 #include <dm/root.h>
  15 #include <dm/device-internal.h>
  16 #include <dm/devres.h>
  17 #include <dm/uclass-internal.h>
  18 #include <dm/util.h>
  19 #include <dm/lists.h>
  20 #include <dm/of_access.h>
  21 #include <test/test.h>
  22 #include <test/ut.h>
  23
  24 DECLARE_GLOBAL_DATA_PTR;
  25
  26 static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret)
  27 {
  28         const struct dm_test_pdata *pdata = dev->platdata;
  29         struct dm_test_priv *priv = dev_get_priv(dev);
  30
  31         *pingret = pingval + pdata->ping_add;
  32         priv->ping_total += *pingret;
  33
  34         return 0;
  35 }
  36
  37 static const struct test_ops test_ops = {
  38         .ping = testfdt_drv_ping,
  39 };
  40
  41 static int testfdt_ofdata_to_platdata(struct udevice *dev)
  42 {
  43         struct dm_test_pdata *pdata = dev_get_platdata(dev);
  44
  45         pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
  46                                         "ping-add", -1);
  47         pdata->base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
  48                                       "ping-expect");
  49
  50         return 0;
  51 }
  52
  53 static int testfdt_drv_probe(struct udevice *dev)
  54 {
  55         struct dm_test_priv *priv = dev_get_priv(dev);
  56
  57         priv->ping_total += DM_TEST_START_TOTAL;
  58
  59         /*
  60          * If this device is on a bus, the uclass_flag will be set before
  61          * calling this function. In the meantime the uclass_postp is
  62          * initlized to a value -1. These are used respectively by
  63          * dm_test_bus_child_pre_probe_uclass() and
  64          * dm_test_bus_child_post_probe_uclass().
  65          */
  66         priv->uclass_total += priv->uclass_flag;
  67         priv->uclass_postp = -1;
  68
  69         return 0;
  70 }
  71
  72 static const struct udevice_id testfdt_ids[] = {
  73         {
  74                 .compatible = "denx,u-boot-fdt-test",
  75                 .data = DM_TEST_TYPE_FIRST },
  76         {
  77                 .compatible = "google,another-fdt-test",
  78                 .data = DM_TEST_TYPE_SECOND },
  79         { }
  80 };
  81
  82 U_BOOT_DRIVER(testfdt_drv) = {
  83         .name   = "testfdt_drv",
  84         .of_match       = testfdt_ids,
  85         .id     = UCLASS_TEST_FDT,
  86         .ofdata_to_platdata = testfdt_ofdata_to_platdata,
  87         .probe  = testfdt_drv_probe,
  88         .ops    = &test_ops,
  89         .priv_auto_alloc_size = sizeof(struct dm_test_priv),
  90         .platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
  91 };
  92
  93 static const struct udevice_id testfdt1_ids[] = {
  94         {
  95                 .compatible = "denx,u-boot-fdt-test1",
  96                 .data = DM_TEST_TYPE_FIRST },
  97         { }
  98 };
  99
 100 U_BOOT_DRIVER(testfdt1_drv) = {
 101         .name   = "testfdt1_drv",
 102         .of_match       = testfdt1_ids,
 103         .id     = UCLASS_TEST_FDT,
 104         .ofdata_to_platdata = testfdt_ofdata_to_platdata,
 105         .probe  = testfdt_drv_probe,
 106         .ops    = &test_ops,
 107         .priv_auto_alloc_size = sizeof(struct dm_test_priv),
 108         .platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
 109         .flags = DM_FLAG_PRE_RELOC,
 110 };
 111
 112 /* From here is the testfdt uclass code */
 113 int testfdt_ping(struct udevice *dev, int pingval, int *pingret)
 114 {
 115         const struct test_ops *ops = device_get_ops(dev);
 116
 117         if (!ops->ping)
 118                 return -ENOSYS;
 119
 120         return ops->ping(dev, pingval, pingret);
 121 }
 122
 123 UCLASS_DRIVER(testfdt) = {
 124         .name           = "testfdt",
 125         .id             = UCLASS_TEST_FDT,
 126         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 127 };
 128
 129 struct dm_testprobe_pdata {
 130         int probe_err;
 131 };
 132
 133 static int testprobe_drv_probe(struct udevice *dev)
 134 {
 135         struct dm_testprobe_pdata *pdata = dev_get_platdata(dev);
 136
 137         return pdata->probe_err;
 138 }
 139
 140 static const struct udevice_id testprobe_ids[] = {
 141         { .compatible = "denx,u-boot-probe-test" },
 142         { }
 143 };
 144
 145 U_BOOT_DRIVER(testprobe_drv) = {
 146         .name   = "testprobe_drv",
 147         .of_match       = testprobe_ids,
 148         .id     = UCLASS_TEST_PROBE,
 149         .probe  = testprobe_drv_probe,
 150         .platdata_auto_alloc_size       = sizeof(struct dm_testprobe_pdata),
 151 };
 152
 153 UCLASS_DRIVER(testprobe) = {
 154         .name           = "testprobe",
 155         .id             = UCLASS_TEST_PROBE,
 156         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 157 };
 158
 159 struct dm_testdevres_pdata {
 160         void *ptr;
 161 };
 162
 163 struct dm_testdevres_priv {
 164         void *ptr;
 165         void *ptr_ofdata;
 166 };
 167
 168 static int testdevres_drv_bind(struct udevice *dev)
 169 {
 170         struct dm_testdevres_pdata *pdata = dev_get_platdata(dev);
 171
 172         pdata->ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE, 0);
 173
 174         return 0;
 175 }
 176
 177 static int testdevres_drv_ofdata_to_platdata(struct udevice *dev)
 178 {
 179         struct dm_testdevres_priv *priv = dev_get_priv(dev);
 180
 181         priv->ptr_ofdata = devm_kmalloc(dev, TEST_DEVRES_SIZE3, 0);
 182
 183         return 0;
 184 }
 185
 186 static int testdevres_drv_probe(struct udevice *dev)
 187 {
 188         struct dm_testdevres_priv *priv = dev_get_priv(dev);
 189
 190         priv->ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE2, 0);
 191
 192         return 0;
 193 }
 194
 195 static const struct udevice_id testdevres_ids[] = {
 196         { .compatible = "denx,u-boot-devres-test" },
 197         { }
 198 };
 199
 200 U_BOOT_DRIVER(testdevres_drv) = {
 201         .name   = "testdevres_drv",
 202         .of_match       = testdevres_ids,
 203         .id     = UCLASS_TEST_DEVRES,
 204         .bind   = testdevres_drv_bind,
 205         .ofdata_to_platdata     = testdevres_drv_ofdata_to_platdata,
 206         .probe  = testdevres_drv_probe,
 207         .platdata_auto_alloc_size       = sizeof(struct dm_testdevres_pdata),
 208         .priv_auto_alloc_size   = sizeof(struct dm_testdevres_priv),
 209 };
 210
 211 UCLASS_DRIVER(testdevres) = {
 212         .name           = "testdevres",
 213         .id             = UCLASS_TEST_DEVRES,
 214         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 215 };
 216
 217 int dm_check_devices(struct unit_test_state *uts, int num_devices)
 218 {
 219         struct udevice *dev;
 220         int ret;
 221         int i;
 222
 223         /*
 224          * Now check that the ping adds are what we expect. This is using the
 225          * ping-add property in each node.
 226          */
 227         for (i = 0; i < num_devices; i++) {
 228                 uint32_t base;
 229
 230                 ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
 231                 ut_assert(!ret);
 232
 233                 /*
 234                  * Get the 'ping-expect' property, which tells us what the
 235                  * ping add should be. We don't use the platdata because we
 236                  * want to test the code that sets that up
 237                  * (testfdt_drv_probe()).
 238                  */
 239                 base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
 240                                        "ping-expect");
 241                 debug("dev=%d, base=%d: %s\n", i, base,
 242                       fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL));
 243
 244                 ut_assert(!dm_check_operations(uts, dev, base,
 245                                                dev_get_priv(dev)));
 246         }
 247
 248         return 0;
 249 }
 250
 251 /* Test that FDT-based binding works correctly */
 252 static int dm_test_fdt(struct unit_test_state *uts)
 253 {
 254         const int num_devices = 8;
 255         struct udevice *dev;
 256         struct uclass *uc;
 257         int ret;
 258         int i;
 259
 260         ret = dm_extended_scan_fdt(gd->fdt_blob, false);
 261         ut_assert(!ret);
 262
 263         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 264         ut_assert(!ret);
 265
 266         /* These are num_devices compatible root-level device tree nodes */
 267         ut_asserteq(num_devices, list_count_items(&uc->dev_head));
 268
 269         /* Each should have platform data but no private data */
 270         for (i = 0; i < num_devices; i++) {
 271                 ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
 272                 ut_assert(!ret);
 273                 ut_assert(!dev_get_priv(dev));
 274                 ut_assert(dev->platdata);
 275         }
 276
 277         ut_assertok(dm_check_devices(uts, num_devices));
 278
 279         return 0;
 280 }
 281 DM_TEST(dm_test_fdt, 0);
 282
 283 static int dm_test_alias_highest_id(struct unit_test_state *uts)
 284 {
 285         int ret;
 286
 287         ret = dev_read_alias_highest_id("eth");
 288         ut_asserteq(5, ret);
 289
 290         ret = dev_read_alias_highest_id("gpio");
 291         ut_asserteq(3, ret);
 292
 293         ret = dev_read_alias_highest_id("pci");
 294         ut_asserteq(2, ret);
 295
 296         ret = dev_read_alias_highest_id("i2c");
 297         ut_asserteq(0, ret);
 298
 299         ret = dev_read_alias_highest_id("deadbeef");
 300         ut_asserteq(-1, ret);
 301
 302         return 0;
 303 }
 304 DM_TEST(dm_test_alias_highest_id, 0);
 305
 306 static int dm_test_fdt_pre_reloc(struct unit_test_state *uts)
 307 {
 308         struct uclass *uc;
 309         int ret;
 310
 311         ret = dm_scan_fdt(gd->fdt_blob, true);
 312         ut_assert(!ret);
 313
 314         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 315         ut_assert(!ret);
 316
 317         /*
 318          * These are 2 pre-reloc devices:
 319          * one with "u-boot,dm-pre-reloc" property (a-test node), and the other
 320          * one whose driver marked with DM_FLAG_PRE_RELOC flag (h-test node).
 321          */
 322         ut_asserteq(2, list_count_items(&uc->dev_head));
 323
 324         return 0;
 325 }
 326 DM_TEST(dm_test_fdt_pre_reloc, 0);
 327
 328 /* Test that sequence numbers are allocated properly */
 329 static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
 330 {
 331         struct udevice *dev;
 332
 333         /* A few basic santiy tests */
 334         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
 335         ut_asserteq_str("b-test", dev->name);
 336
 337         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
 338         ut_asserteq_str("a-test", dev->name);
 339
 340         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
 341                                                        true, &dev));
 342         ut_asserteq_ptr(NULL, dev);
 343
 344         /* Test aliases */
 345         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
 346         ut_asserteq_str("e-test", dev->name);
 347
 348         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
 349                                                        true, &dev));
 350
 351         /*
 352          * Note that c-test nodes are not probed since it is not a top-level
 353          * node
 354          */
 355         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
 356         ut_asserteq_str("b-test", dev->name);
 357
 358         /*
 359          * d-test wants sequence number 3 also, but it can't have it because
 360          * b-test gets it first.
 361          */
 362         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
 363         ut_asserteq_str("d-test", dev->name);
 364
 365         /*
 366          * d-test actually gets 9, because thats the next free one after the
 367          * aliases.
 368          */
 369         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 9, &dev));
 370         ut_asserteq_str("d-test", dev->name);
 371
 372         /* initially no one wants seq 10 */
 373         ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 10,
 374                                                       &dev));
 375         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
 376         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev));
 377
 378         /* But now that it is probed, we can find it */
 379         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 10, &dev));
 380         ut_asserteq_str("f-test", dev->name);
 381
 382         /*
 383          * And we should still have holes in our sequence numbers, that is 2
 384          * and 4 should not be used.
 385          */
 386         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 2,
 387                                                        true, &dev));
 388         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 4,
 389                                                        true, &dev));
 390
 391         return 0;
 392 }
 393 DM_TEST(dm_test_fdt_uclass_seq, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 394
 395 /* Test that we can find a device by device tree offset */
 396 static int dm_test_fdt_offset(struct unit_test_state *uts)
 397 {
 398         const void *blob = gd->fdt_blob;
 399         struct udevice *dev;
 400         int node;
 401
 402         node = fdt_path_offset(blob, "/e-test");
 403         ut_assert(node > 0);
 404         ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
 405                                                    &dev));
 406         ut_asserteq_str("e-test", dev->name);
 407
 408         /* This node should not be bound */
 409         node = fdt_path_offset(blob, "/junk");
 410         ut_assert(node > 0);
 411         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 412                                                             node, &dev));
 413
 414         /* This is not a top level node so should not be probed */
 415         node = fdt_path_offset(blob, "/some-bus/c-test@5");
 416         ut_assert(node > 0);
 417         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 418                                                             node, &dev));
 419
 420         return 0;
 421 }
 422 DM_TEST(dm_test_fdt_offset,
 423         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 424
 425 /**
 426  * Test various error conditions with uclass_first_device() and
 427  * uclass_next_device()
 428  */
 429 static int dm_test_first_next_device(struct unit_test_state *uts)
 430 {
 431         struct dm_testprobe_pdata *pdata;
 432         struct udevice *dev, *parent = NULL;
 433         int count;
 434         int ret;
 435
 436         /* There should be 4 devices */
 437         for (ret = uclass_first_device(UCLASS_TEST_PROBE, &dev), count = 0;
 438              dev;
 439              ret = uclass_next_device(&dev)) {
 440                 count++;
 441                 parent = dev_get_parent(dev);
 442                 }
 443         ut_assertok(ret);
 444         ut_asserteq(4, count);
 445
 446         /* Remove them and try again, with an error on the second one */
 447         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 1, &dev));
 448         pdata = dev_get_platdata(dev);
 449         pdata->probe_err = -ENOMEM;
 450         device_remove(parent, DM_REMOVE_NORMAL);
 451         ut_assertok(uclass_first_device(UCLASS_TEST_PROBE, &dev));
 452         ut_asserteq(-ENOMEM, uclass_next_device(&dev));
 453         ut_asserteq_ptr(dev, NULL);
 454
 455         /* Now an error on the first one */
 456         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 0, &dev));
 457         pdata = dev_get_platdata(dev);
 458         pdata->probe_err = -ENOENT;
 459         device_remove(parent, DM_REMOVE_NORMAL);
 460         ut_asserteq(-ENOENT, uclass_first_device(UCLASS_TEST_PROBE, &dev));
 461
 462         return 0;
 463 }
 464 DM_TEST(dm_test_first_next_device, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 465
 466 /* Test iteration through devices in a uclass */
 467 static int dm_test_uclass_foreach(struct unit_test_state *uts)
 468 {
 469         struct udevice *dev;
 470         struct uclass *uc;
 471         int count;
 472
 473         count = 0;
 474         uclass_id_foreach_dev(UCLASS_TEST_FDT, dev, uc)
 475                 count++;
 476         ut_asserteq(8, count);
 477
 478         count = 0;
 479         uclass_foreach_dev(dev, uc)
 480                 count++;
 481         ut_asserteq(8, count);
 482
 483         return 0;
 484 }
 485 DM_TEST(dm_test_uclass_foreach, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 486
 487 /**
 488  * check_devices() - Check return values and pointers
 489  *
 490  * This runs through a full sequence of uclass_first_device_check()...
 491  * uclass_next_device_check() checking that the return values and devices
 492  * are correct.
 493  *
 494  * @uts: Test state
 495  * @devlist: List of expected devices
 496  * @mask: Indicates which devices should return an error. Device n should
 497  *        return error (-NOENT - n) if bit n is set, or no error (i.e. 0) if
 498  *        bit n is clear.
 499  */
 500 static int check_devices(struct unit_test_state *uts,
 501                          struct udevice *devlist[], int mask)
 502 {
 503         int expected_ret;
 504         struct udevice *dev;
 505         int i;
 506
 507         expected_ret = (mask & 1) ? -ENOENT : 0;
 508         mask >>= 1;
 509         ut_asserteq(expected_ret,
 510                     uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 511         for (i = 0; i < 4; i++) {
 512                 ut_asserteq_ptr(devlist[i], dev);
 513                 expected_ret = (mask & 1) ? -ENOENT - (i + 1) : 0;
 514                 mask >>= 1;
 515                 ut_asserteq(expected_ret, uclass_next_device_check(&dev));
 516         }
 517         ut_asserteq_ptr(NULL, dev);
 518
 519         return 0;
 520 }
 521
 522 /* Test uclass_first_device_check() and uclass_next_device_check() */
 523 static int dm_test_first_next_ok_device(struct unit_test_state *uts)
 524 {
 525         struct dm_testprobe_pdata *pdata;
 526         struct udevice *dev, *parent = NULL, *devlist[4];
 527         int count;
 528         int ret;
 529
 530         /* There should be 4 devices */
 531         count = 0;
 532         for (ret = uclass_first_device_check(UCLASS_TEST_PROBE, &dev);
 533              dev;
 534              ret = uclass_next_device_check(&dev)) {
 535                 ut_assertok(ret);
 536                 devlist[count++] = dev;
 537                 parent = dev_get_parent(dev);
 538                 }
 539         ut_asserteq(4, count);
 540         ut_assertok(uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 541         ut_assertok(check_devices(uts, devlist, 0));
 542
 543         /* Remove them and try again, with an error on the second one */
 544         pdata = dev_get_platdata(devlist[1]);
 545         pdata->probe_err = -ENOENT - 1;
 546         device_remove(parent, DM_REMOVE_NORMAL);
 547         ut_assertok(check_devices(uts, devlist, 1 << 1));
 548
 549         /* Now an error on the first one */
 550         pdata = dev_get_platdata(devlist[0]);
 551         pdata->probe_err = -ENOENT - 0;
 552         device_remove(parent, DM_REMOVE_NORMAL);
 553         ut_assertok(check_devices(uts, devlist, 3 << 0));
 554
 555         /* Now errors on all */
 556         pdata = dev_get_platdata(devlist[2]);
 557         pdata->probe_err = -ENOENT - 2;
 558         pdata = dev_get_platdata(devlist[3]);
 559         pdata->probe_err = -ENOENT - 3;
 560         device_remove(parent, DM_REMOVE_NORMAL);
 561         ut_assertok(check_devices(uts, devlist, 0xf << 0));
 562
 563         return 0;
 564 }
 565 DM_TEST(dm_test_first_next_ok_device, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 566
 567 static const struct udevice_id fdt_dummy_ids[] = {
 568         { .compatible = "denx,u-boot-fdt-dummy", },
 569         { }
 570 };
 571
 572 UCLASS_DRIVER(fdt_dummy) = {
 573         .name           = "fdt-dummy",
 574         .id             = UCLASS_TEST_DUMMY,
 575         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 576 };
 577
 578 U_BOOT_DRIVER(fdt_dummy_drv) = {
 579         .name   = "fdt_dummy_drv",
 580         .of_match       = fdt_dummy_ids,
 581         .id     = UCLASS_TEST_DUMMY,
 582 };
 583
 584 static int dm_test_fdt_translation(struct unit_test_state *uts)
 585 {
 586         struct udevice *dev;
 587         fdt32_t dma_addr[2];
 588
 589         /* Some simple translations */
 590         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 591         ut_asserteq_str("dev@0,0", dev->name);
 592         ut_asserteq(0x8000, dev_read_addr(dev));
 593
 594         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
 595         ut_asserteq_str("dev@1,100", dev->name);
 596         ut_asserteq(0x9000, dev_read_addr(dev));
 597
 598         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 2, true, &dev));
 599         ut_asserteq_str("dev@2,200", dev->name);
 600         ut_asserteq(0xA000, dev_read_addr(dev));
 601
 602         /* No translation for busses with #size-cells == 0 */
 603         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 3, true, &dev));
 604         ut_asserteq_str("dev@42", dev->name);
 605         ut_asserteq(0x42, dev_read_addr(dev));
 606
 607         /* dma address translation */
 608         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 609         dma_addr[0] = cpu_to_be32(0);
 610         dma_addr[1] = cpu_to_be32(0);
 611         ut_asserteq(0x10000000, dev_translate_dma_address(dev, dma_addr));
 612
 613         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
 614         dma_addr[0] = cpu_to_be32(1);
 615         dma_addr[1] = cpu_to_be32(0x100);
 616         ut_asserteq(0x20000000, dev_translate_dma_address(dev, dma_addr));
 617
 618         return 0;
 619 }
 620 DM_TEST(dm_test_fdt_translation, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 621
 622 static int dm_test_fdt_remap_addr_flat(struct unit_test_state *uts)
 623 {
 624         struct udevice *dev;
 625         fdt_addr_t addr;
 626         void *paddr;
 627
 628         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 629
 630         addr = devfdt_get_addr(dev);
 631         ut_asserteq(0x8000, addr);
 632
 633         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 634         ut_assertnonnull(paddr);
 635         ut_asserteq_ptr(paddr, devfdt_remap_addr(dev));
 636
 637         return 0;
 638 }
 639 DM_TEST(dm_test_fdt_remap_addr_flat,
 640         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 641
 642 static int dm_test_fdt_remap_addr_index_flat(struct unit_test_state *uts)
 643 {
 644         struct udevice *dev;
 645         fdt_addr_t addr;
 646         fdt_size_t size;
 647         void *paddr;
 648
 649         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 650
 651         addr = devfdt_get_addr_size_index(dev, 0, &size);
 652         ut_asserteq(0x8000, addr);
 653         ut_asserteq(0x1000, size);
 654
 655         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 656         ut_assertnonnull(paddr);
 657         ut_asserteq_ptr(paddr, devfdt_remap_addr_index(dev, 0));
 658
 659         return 0;
 660 }
 661 DM_TEST(dm_test_fdt_remap_addr_index_flat,
 662         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 663
 664 static int dm_test_fdt_remap_addr_name_flat(struct unit_test_state *uts)
 665 {
 666         struct udevice *dev;
 667         fdt_addr_t addr;
 668         fdt_size_t size;
 669         void *paddr;
 670
 671         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 672
 673         addr = devfdt_get_addr_size_name(dev, "sandbox-dummy-0", &size);
 674         ut_asserteq(0x8000, addr);
 675         ut_asserteq(0x1000, size);
 676
 677         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 678         ut_assertnonnull(paddr);
 679         ut_asserteq_ptr(paddr, devfdt_remap_addr_name(dev, "sandbox-dummy-0"));
 680
 681         return 0;
 682 }
 683 DM_TEST(dm_test_fdt_remap_addr_name_flat,
 684         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_FLAT_TREE);
 685
 686 static int dm_test_fdt_remap_addr_live(struct unit_test_state *uts)
 687 {
 688         struct udevice *dev;
 689         fdt_addr_t addr;
 690         void *paddr;
 691
 692         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 693
 694         addr = dev_read_addr(dev);
 695         ut_asserteq(0x8000, addr);
 696
 697         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 698         ut_assertnonnull(paddr);
 699         ut_asserteq_ptr(paddr, dev_remap_addr(dev));
 700
 701         return 0;
 702 }
 703 DM_TEST(dm_test_fdt_remap_addr_live,
 704         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 705
 706 static int dm_test_fdt_remap_addr_index_live(struct unit_test_state *uts)
 707 {
 708         struct udevice *dev;
 709         fdt_addr_t addr;
 710         fdt_size_t size;
 711         void *paddr;
 712
 713         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 714
 715         addr = dev_read_addr_size_index(dev, 0, &size);
 716         ut_asserteq(0x8000, addr);
 717         ut_asserteq(0x1000, size);
 718
 719         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 720         ut_assertnonnull(paddr);
 721         ut_asserteq_ptr(paddr, dev_remap_addr_index(dev, 0));
 722
 723         return 0;
 724 }
 725 DM_TEST(dm_test_fdt_remap_addr_index_live,
 726         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 727
 728 static int dm_test_fdt_remap_addr_name_live(struct unit_test_state *uts)
 729 {
 730         struct udevice *dev;
 731         fdt_addr_t addr;
 732         fdt_size_t size;
 733         void *paddr;
 734
 735         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 736
 737         addr = dev_read_addr_size_name(dev, "sandbox-dummy-0", &size);
 738         ut_asserteq(0x8000, addr);
 739         ut_asserteq(0x1000, size);
 740
 741         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 742         ut_assertnonnull(paddr);
 743         ut_asserteq_ptr(paddr, dev_remap_addr_name(dev, "sandbox-dummy-0"));
 744
 745         return 0;
 746 }
 747 DM_TEST(dm_test_fdt_remap_addr_name_live,
 748         UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 749
 750 static int dm_test_fdt_livetree_writing(struct unit_test_state *uts)
 751 {
 752         struct udevice *dev;
 753         ofnode node;
 754
 755         if (!of_live_active()) {
 756                 printf("Live tree not active; ignore test\n");
 757                 return 0;
 758         }
 759
 760         /* Test enabling devices */
 761
 762         node = ofnode_path("/usb@2");
 763
 764         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 765         ofnode_set_enabled(node, true);
 766         ut_assert(of_device_is_available(ofnode_to_np(node)));
 767
 768         device_bind_driver_to_node(dm_root(), "usb_sandbox", "usb@2", node,
 769                                    &dev);
 770         ut_assertok(uclass_find_device_by_seq(UCLASS_USB, 2, true, &dev));
 771
 772         /* Test string property setting */
 773
 774         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 775         ofnode_write_string(node, "compatible", "gdsys,super-usb");
 776         ut_assert(device_is_compatible(dev, "gdsys,super-usb"));
 777         ofnode_write_string(node, "compatible", "sandbox,usb");
 778         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 779
 780         /* Test setting generic properties */
 781
 782         /* Non-existent in DTB */
 783         ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr(dev));
 784         /* reg = 0x42, size = 0x100 */
 785         ut_assertok(ofnode_write_prop(node, "reg", 8,
 786                                       "\x00\x00\x00\x42\x00\x00\x01\x00"));
 787         ut_asserteq(0x42, dev_read_addr(dev));
 788
 789         /* Test disabling devices */
 790
 791         device_remove(dev, DM_REMOVE_NORMAL);
 792         device_unbind(dev);
 793
 794         ut_assert(of_device_is_available(ofnode_to_np(node)));
 795         ofnode_set_enabled(node, false);
 796         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 797
 798         return 0;
 799 }
 800 DM_TEST(dm_test_fdt_livetree_writing, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 801
 802 static int dm_test_fdt_disable_enable_by_path(struct unit_test_state *uts)
 803 {
 804         ofnode node;
 805
 806         if (!of_live_active()) {
 807                 printf("Live tree not active; ignore test\n");
 808                 return 0;
 809         }
 810
 811         node = ofnode_path("/usb@2");
 812
 813         /* Test enabling devices */
 814
 815         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 816         dev_enable_by_path("/usb@2");
 817         ut_assert(of_device_is_available(ofnode_to_np(node)));
 818
 819         /* Test disabling devices */
 820
 821         ut_assert(of_device_is_available(ofnode_to_np(node)));
 822         dev_disable_by_path("/usb@2");
 823         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 824
 825         return 0;
 826 }
 827 DM_TEST(dm_test_fdt_disable_enable_by_path, UT_TESTF_SCAN_PDATA |
 828                                             UT_TESTF_SCAN_FDT);
 829
 830 /* Test a few uclass phandle functions */
 831 static int dm_test_fdt_phandle(struct unit_test_state *uts)
 832 {
 833         struct udevice *back, *dev, *dev2;
 834
 835         ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back));
 836         ut_assertnonnull(back);
 837         ut_asserteq(-ENOENT, uclass_find_device_by_phandle(UCLASS_REGULATOR,
 838                                                         back, "missing", &dev));
 839         ut_assertok(uclass_find_device_by_phandle(UCLASS_REGULATOR, back,
 840                                                   "power-supply", &dev));
 841         ut_assertnonnull(dev);
 842         ut_asserteq(0, device_active(dev));
 843         ut_asserteq_str("ldo1", dev->name);
 844         ut_assertok(uclass_get_device_by_phandle(UCLASS_REGULATOR, back,
 845                                                  "power-supply", &dev2));
 846         ut_asserteq_ptr(dev, dev2);
 847
 848         return 0;
 849 }
 850 DM_TEST(dm_test_fdt_phandle, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 851
 852 /* Test device_find_first_child_by_uclass() */
 853 static int dm_test_first_child(struct unit_test_state *uts)
 854 {
 855         struct udevice *i2c, *dev, *dev2;
 856
 857         ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
 858         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_RTC, &dev));
 859         ut_asserteq_str("rtc@43", dev->name);
 860         ut_assertok(device_find_child_by_name(i2c, "rtc@43", &dev2));
 861         ut_asserteq_ptr(dev, dev2);
 862         ut_assertok(device_find_child_by_name(i2c, "rtc@61", &dev2));
 863         ut_asserteq_str("rtc@61", dev2->name);
 864
 865         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_I2C_EEPROM,
 866                                                       &dev));
 867         ut_asserteq_str("eeprom@2c", dev->name);
 868         ut_assertok(device_find_child_by_name(i2c, "eeprom@2c", &dev2));
 869         ut_asserteq_ptr(dev, dev2);
 870
 871         ut_asserteq(-ENODEV, device_find_first_child_by_uclass(i2c,
 872                                                         UCLASS_VIDEO, &dev));
 873         ut_asserteq(-ENODEV, device_find_child_by_name(i2c, "missing", &dev));
 874
 875         return 0;
 876 }
 877 DM_TEST(dm_test_first_child, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 878
 879 /* Test integer functions in dm_read_...() */
 880 static int dm_test_read_int(struct unit_test_state *uts)
 881 {
 882         struct udevice *dev;
 883         u32 val32;
 884         s32 sval;
 885         uint val;
 886         u64 val64;
 887
 888         ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
 889         ut_asserteq_str("a-test", dev->name);
 890         ut_assertok(dev_read_u32(dev, "int-value", &val32));
 891         ut_asserteq(1234, val32);
 892
 893         ut_asserteq(-EINVAL, dev_read_u32(dev, "missing", &val32));
 894         ut_asserteq(6, dev_read_u32_default(dev, "missing", 6));
 895
 896         ut_asserteq(1234, dev_read_u32_default(dev, "int-value", 6));
 897         ut_asserteq(1234, val32);
 898
 899         ut_asserteq(-EINVAL, dev_read_s32(dev, "missing", &sval));
 900         ut_asserteq(6, dev_read_s32_default(dev, "missing", 6));
 901
 902         ut_asserteq(-1234, dev_read_s32_default(dev, "uint-value", 6));
 903         ut_assertok(dev_read_s32(dev, "uint-value", &sval));
 904         ut_asserteq(-1234, sval);
 905
 906         val = 0;
 907         ut_asserteq(-EINVAL, dev_read_u32u(dev, "missing", &val));
 908         ut_assertok(dev_read_u32u(dev, "uint-value", &val));
 909         ut_asserteq(-1234, val);
 910
 911         ut_assertok(dev_read_u64(dev, "int64-value", &val64));
 912         ut_asserteq_64(0x1111222233334444, val64);
 913
 914         ut_asserteq_64(-EINVAL, dev_read_u64(dev, "missing", &val64));
 915         ut_asserteq_64(6, dev_read_u64_default(dev, "missing", 6));
 916
 917         ut_asserteq_64(0x1111222233334444,
 918                        dev_read_u64_default(dev, "int64-value", 6));
 919
 920         return 0;
 921 }
 922 DM_TEST(dm_test_read_int, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 923
 924 static int dm_test_read_int_index(struct unit_test_state *uts)
 925 {
 926         struct udevice *dev;
 927         u32 val32;
 928
 929         ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
 930         ut_asserteq_str("a-test", dev->name);
 931
 932         ut_asserteq(-EINVAL, dev_read_u32_index(dev, "missing", 0, &val32));
 933         ut_asserteq(19, dev_read_u32_index_default(dev, "missing", 0, 19));
 934
 935         ut_assertok(dev_read_u32_index(dev, "int-array", 0, &val32));
 936         ut_asserteq(5678, val32);
 937         ut_assertok(dev_read_u32_index(dev, "int-array", 1, &val32));
 938         ut_asserteq(9123, val32);
 939         ut_assertok(dev_read_u32_index(dev, "int-array", 2, &val32));
 940         ut_asserteq(4567, val32);
 941         ut_asserteq(-EOVERFLOW, dev_read_u32_index(dev, "int-array", 3,
 942                                                    &val32));
 943
 944         ut_asserteq(5678, dev_read_u32_index_default(dev, "int-array", 0, 2));
 945         ut_asserteq(9123, dev_read_u32_index_default(dev, "int-array", 1, 2));
 946         ut_asserteq(4567, dev_read_u32_index_default(dev, "int-array", 2, 2));
 947         ut_asserteq(2, dev_read_u32_index_default(dev, "int-array", 3, 2));
 948
 949         return 0;
 950 }
 951 DM_TEST(dm_test_read_int_index, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 952
 953 /* Test iteration through devices by drvdata */
 954 static int dm_test_uclass_drvdata(struct unit_test_state *uts)
 955 {
 956         struct udevice *dev;
 957
 958         ut_assertok(uclass_first_device_drvdata(UCLASS_TEST_FDT,
 959                                                 DM_TEST_TYPE_FIRST, &dev));
 960         ut_asserteq_str("a-test", dev->name);
 961
 962         ut_assertok(uclass_first_device_drvdata(UCLASS_TEST_FDT,
 963                                                 DM_TEST_TYPE_SECOND, &dev));
 964         ut_asserteq_str("d-test", dev->name);
 965
 966         ut_asserteq(-ENODEV, uclass_first_device_drvdata(UCLASS_TEST_FDT,
 967                                                          DM_TEST_TYPE_COUNT,
 968                                                          &dev));
 969
 970         return 0;
 971 }
 972 DM_TEST(dm_test_uclass_drvdata, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 973
 974 /* Test device_first_child_ofdata_err(), etc. */
 975 static int dm_test_child_ofdata(struct unit_test_state *uts)
 976 {
 977         struct udevice *bus, *dev;
 978         int count;
 979
 980         ut_assertok(uclass_first_device_err(UCLASS_TEST_BUS, &bus));
 981         count = 0;
 982         device_foreach_child_ofdata_to_platdata(dev, bus) {
 983                 ut_assert(dev->flags & DM_FLAG_PLATDATA_VALID);
 984                 ut_assert(!(dev->flags & DM_FLAG_ACTIVATED));
 985                 count++;
 986         }
 987         ut_asserteq(3, count);
 988
 989         return 0;
 990 }
 991 DM_TEST(dm_test_child_ofdata, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
 992
 993 /* Test device_first_child_err(), etc. */
 994 static int dm_test_first_child_probe(struct unit_test_state *uts)
 995 {
 996         struct udevice *bus, *dev;
 997         int count;
 998
 999         ut_assertok(uclass_first_device_err(UCLASS_TEST_BUS, &bus));
1000         count = 0;
1001         device_foreach_child_probe(dev, bus) {
1002                 ut_assert(dev->flags & DM_FLAG_PLATDATA_VALID);
1003                 ut_assert(dev->flags & DM_FLAG_ACTIVATED);
1004                 count++;
1005         }
1006         ut_asserteq(3, count);
1007
1008         return 0;
1009 }
1010 DM_TEST(dm_test_first_child_probe, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
1011
1012 /* Test that ofdata is read for parents before children */
1013 static int dm_test_ofdata_order(struct unit_test_state *uts)
1014 {
1015         struct udevice *bus, *dev;
1016
1017         ut_assertok(uclass_find_first_device(UCLASS_I2C, &bus));
1018         ut_assertnonnull(bus);
1019         ut_assert(!(bus->flags & DM_FLAG_PLATDATA_VALID));
1020
1021         ut_assertok(device_find_first_child(bus, &dev));
1022         ut_assertnonnull(dev);
1023         ut_assert(!(dev->flags & DM_FLAG_PLATDATA_VALID));
1024
1025         /* read the child's ofdata which should cause the parent's to be read */
1026         ut_assertok(device_ofdata_to_platdata(dev));
1027         ut_assert(dev->flags & DM_FLAG_PLATDATA_VALID);
1028         ut_assert(bus->flags & DM_FLAG_PLATDATA_VALID);
1029
1030         ut_assert(!(dev->flags & DM_FLAG_ACTIVATED));
1031         ut_assert(!(bus->flags & DM_FLAG_ACTIVATED));
1032
1033         return 0;
1034 }
1035 DM_TEST(dm_test_ofdata_order, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);