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