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 <malloc.h>
  11 #include <asm/io.h>
  12 #include <dm/test.h>
  13 #include <dm/root.h>
  14 #include <dm/device-internal.h>
  15 #include <dm/uclass-internal.h>
  16 #include <dm/util.h>
  17 #include <dm/lists.h>
  18 #include <dm/of_access.h>
  19 #include <test/ut.h>
  20
  21 DECLARE_GLOBAL_DATA_PTR;
  22
  23 static int testfdt_drv_ping(struct udevice *dev, int pingval, int *pingret)
  24 {
  25         const struct dm_test_pdata *pdata = dev->platdata;
  26         struct dm_test_priv *priv = dev_get_priv(dev);
  27
  28         *pingret = pingval + pdata->ping_add;
  29         priv->ping_total += *pingret;
  30
  31         return 0;
  32 }
  33
  34 static const struct test_ops test_ops = {
  35         .ping = testfdt_drv_ping,
  36 };
  37
  38 static int testfdt_ofdata_to_platdata(struct udevice *dev)
  39 {
  40         struct dm_test_pdata *pdata = dev_get_platdata(dev);
  41
  42         pdata->ping_add = fdtdec_get_int(gd->fdt_blob, dev_of_offset(dev),
  43                                         "ping-add", -1);
  44         pdata->base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
  45                                       "ping-expect");
  46
  47         return 0;
  48 }
  49
  50 static int testfdt_drv_probe(struct udevice *dev)
  51 {
  52         struct dm_test_priv *priv = dev_get_priv(dev);
  53
  54         priv->ping_total += DM_TEST_START_TOTAL;
  55
  56         /*
  57          * If this device is on a bus, the uclass_flag will be set before
  58          * calling this function. In the meantime the uclass_postp is
  59          * initlized to a value -1. These are used respectively by
  60          * dm_test_bus_child_pre_probe_uclass() and
  61          * dm_test_bus_child_post_probe_uclass().
  62          */
  63         priv->uclass_total += priv->uclass_flag;
  64         priv->uclass_postp = -1;
  65
  66         return 0;
  67 }
  68
  69 static const struct udevice_id testfdt_ids[] = {
  70         {
  71                 .compatible = "denx,u-boot-fdt-test",
  72                 .data = DM_TEST_TYPE_FIRST },
  73         {
  74                 .compatible = "google,another-fdt-test",
  75                 .data = DM_TEST_TYPE_SECOND },
  76         { }
  77 };
  78
  79 U_BOOT_DRIVER(testfdt_drv) = {
  80         .name   = "testfdt_drv",
  81         .of_match       = testfdt_ids,
  82         .id     = UCLASS_TEST_FDT,
  83         .ofdata_to_platdata = testfdt_ofdata_to_platdata,
  84         .probe  = testfdt_drv_probe,
  85         .ops    = &test_ops,
  86         .priv_auto_alloc_size = sizeof(struct dm_test_priv),
  87         .platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
  88 };
  89
  90 static const struct udevice_id testfdt1_ids[] = {
  91         {
  92                 .compatible = "denx,u-boot-fdt-test1",
  93                 .data = DM_TEST_TYPE_FIRST },
  94         { }
  95 };
  96
  97 U_BOOT_DRIVER(testfdt1_drv) = {
  98         .name   = "testfdt1_drv",
  99         .of_match       = testfdt1_ids,
 100         .id     = UCLASS_TEST_FDT,
 101         .ofdata_to_platdata = testfdt_ofdata_to_platdata,
 102         .probe  = testfdt_drv_probe,
 103         .ops    = &test_ops,
 104         .priv_auto_alloc_size = sizeof(struct dm_test_priv),
 105         .platdata_auto_alloc_size = sizeof(struct dm_test_pdata),
 106         .flags = DM_FLAG_PRE_RELOC,
 107 };
 108
 109 /* From here is the testfdt uclass code */
 110 int testfdt_ping(struct udevice *dev, int pingval, int *pingret)
 111 {
 112         const struct test_ops *ops = device_get_ops(dev);
 113
 114         if (!ops->ping)
 115                 return -ENOSYS;
 116
 117         return ops->ping(dev, pingval, pingret);
 118 }
 119
 120 UCLASS_DRIVER(testfdt) = {
 121         .name           = "testfdt",
 122         .id             = UCLASS_TEST_FDT,
 123         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 124 };
 125
 126 struct dm_testprobe_pdata {
 127         int probe_err;
 128 };
 129
 130 static int testprobe_drv_probe(struct udevice *dev)
 131 {
 132         struct dm_testprobe_pdata *pdata = dev_get_platdata(dev);
 133
 134         return pdata->probe_err;
 135 }
 136
 137 static const struct udevice_id testprobe_ids[] = {
 138         { .compatible = "denx,u-boot-probe-test" },
 139         { }
 140 };
 141
 142 U_BOOT_DRIVER(testprobe_drv) = {
 143         .name   = "testprobe_drv",
 144         .of_match       = testprobe_ids,
 145         .id     = UCLASS_TEST_PROBE,
 146         .probe  = testprobe_drv_probe,
 147         .platdata_auto_alloc_size       = sizeof(struct dm_testprobe_pdata),
 148 };
 149
 150 UCLASS_DRIVER(testprobe) = {
 151         .name           = "testprobe",
 152         .id             = UCLASS_TEST_PROBE,
 153         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 154 };
 155
 156 int dm_check_devices(struct unit_test_state *uts, int num_devices)
 157 {
 158         struct udevice *dev;
 159         int ret;
 160         int i;
 161
 162         /*
 163          * Now check that the ping adds are what we expect. This is using the
 164          * ping-add property in each node.
 165          */
 166         for (i = 0; i < num_devices; i++) {
 167                 uint32_t base;
 168
 169                 ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
 170                 ut_assert(!ret);
 171
 172                 /*
 173                  * Get the 'ping-expect' property, which tells us what the
 174                  * ping add should be. We don't use the platdata because we
 175                  * want to test the code that sets that up
 176                  * (testfdt_drv_probe()).
 177                  */
 178                 base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
 179                                        "ping-expect");
 180                 debug("dev=%d, base=%d: %s\n", i, base,
 181                       fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL));
 182
 183                 ut_assert(!dm_check_operations(uts, dev, base,
 184                                                dev_get_priv(dev)));
 185         }
 186
 187         return 0;
 188 }
 189
 190 /* Test that FDT-based binding works correctly */
 191 static int dm_test_fdt(struct unit_test_state *uts)
 192 {
 193         const int num_devices = 8;
 194         struct udevice *dev;
 195         struct uclass *uc;
 196         int ret;
 197         int i;
 198
 199         ret = dm_scan_fdt(gd->fdt_blob, false);
 200         ut_assert(!ret);
 201
 202         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 203         ut_assert(!ret);
 204
 205         /* These are num_devices compatible root-level device tree nodes */
 206         ut_asserteq(num_devices, list_count_items(&uc->dev_head));
 207
 208         /* Each should have platform data but no private data */
 209         for (i = 0; i < num_devices; i++) {
 210                 ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
 211                 ut_assert(!ret);
 212                 ut_assert(!dev_get_priv(dev));
 213                 ut_assert(dev->platdata);
 214         }
 215
 216         ut_assertok(dm_check_devices(uts, num_devices));
 217
 218         return 0;
 219 }
 220 DM_TEST(dm_test_fdt, 0);
 221
 222 static int dm_test_fdt_pre_reloc(struct unit_test_state *uts)
 223 {
 224         struct uclass *uc;
 225         int ret;
 226
 227         ret = dm_scan_fdt(gd->fdt_blob, true);
 228         ut_assert(!ret);
 229
 230         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 231         ut_assert(!ret);
 232
 233         /*
 234          * These are 2 pre-reloc devices:
 235          * one with "u-boot,dm-pre-reloc" property (a-test node), and the other
 236          * one whose driver marked with DM_FLAG_PRE_RELOC flag (h-test node).
 237          */
 238         ut_asserteq(2, list_count_items(&uc->dev_head));
 239
 240         return 0;
 241 }
 242 DM_TEST(dm_test_fdt_pre_reloc, 0);
 243
 244 /* Test that sequence numbers are allocated properly */
 245 static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
 246 {
 247         struct udevice *dev;
 248
 249         /* A few basic santiy tests */
 250         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
 251         ut_asserteq_str("b-test", dev->name);
 252
 253         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
 254         ut_asserteq_str("a-test", dev->name);
 255
 256         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
 257                                                        true, &dev));
 258         ut_asserteq_ptr(NULL, dev);
 259
 260         /* Test aliases */
 261         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
 262         ut_asserteq_str("e-test", dev->name);
 263
 264         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
 265                                                        true, &dev));
 266
 267         /*
 268          * Note that c-test nodes are not probed since it is not a top-level
 269          * node
 270          */
 271         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
 272         ut_asserteq_str("b-test", dev->name);
 273
 274         /*
 275          * d-test wants sequence number 3 also, but it can't have it because
 276          * b-test gets it first.
 277          */
 278         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
 279         ut_asserteq_str("d-test", dev->name);
 280
 281         /* d-test actually gets 0 */
 282         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 0, &dev));
 283         ut_asserteq_str("d-test", dev->name);
 284
 285         /* initially no one wants seq 1 */
 286         ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 1,
 287                                                       &dev));
 288         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
 289         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev));
 290
 291         /* But now that it is probed, we can find it */
 292         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, &dev));
 293         ut_asserteq_str("f-test", dev->name);
 294
 295         return 0;
 296 }
 297 DM_TEST(dm_test_fdt_uclass_seq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 298
 299 /* Test that we can find a device by device tree offset */
 300 static int dm_test_fdt_offset(struct unit_test_state *uts)
 301 {
 302         const void *blob = gd->fdt_blob;
 303         struct udevice *dev;
 304         int node;
 305
 306         node = fdt_path_offset(blob, "/e-test");
 307         ut_assert(node > 0);
 308         ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
 309                                                    &dev));
 310         ut_asserteq_str("e-test", dev->name);
 311
 312         /* This node should not be bound */
 313         node = fdt_path_offset(blob, "/junk");
 314         ut_assert(node > 0);
 315         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 316                                                             node, &dev));
 317
 318         /* This is not a top level node so should not be probed */
 319         node = fdt_path_offset(blob, "/some-bus/c-test@5");
 320         ut_assert(node > 0);
 321         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 322                                                             node, &dev));
 323
 324         return 0;
 325 }
 326 DM_TEST(dm_test_fdt_offset,
 327         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 328
 329 /**
 330  * Test various error conditions with uclass_first_device() and
 331  * uclass_next_device()
 332  */
 333 static int dm_test_first_next_device(struct unit_test_state *uts)
 334 {
 335         struct dm_testprobe_pdata *pdata;
 336         struct udevice *dev, *parent = NULL;
 337         int count;
 338         int ret;
 339
 340         /* There should be 4 devices */
 341         for (ret = uclass_first_device(UCLASS_TEST_PROBE, &dev), count = 0;
 342              dev;
 343              ret = uclass_next_device(&dev)) {
 344                 count++;
 345                 parent = dev_get_parent(dev);
 346                 }
 347         ut_assertok(ret);
 348         ut_asserteq(4, count);
 349
 350         /* Remove them and try again, with an error on the second one */
 351         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 1, &dev));
 352         pdata = dev_get_platdata(dev);
 353         pdata->probe_err = -ENOMEM;
 354         device_remove(parent, DM_REMOVE_NORMAL);
 355         ut_assertok(uclass_first_device(UCLASS_TEST_PROBE, &dev));
 356         ut_asserteq(-ENOMEM, uclass_next_device(&dev));
 357         ut_asserteq_ptr(dev, NULL);
 358
 359         /* Now an error on the first one */
 360         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 0, &dev));
 361         pdata = dev_get_platdata(dev);
 362         pdata->probe_err = -ENOENT;
 363         device_remove(parent, DM_REMOVE_NORMAL);
 364         ut_asserteq(-ENOENT, uclass_first_device(UCLASS_TEST_PROBE, &dev));
 365
 366         return 0;
 367 }
 368 DM_TEST(dm_test_first_next_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 369
 370 /**
 371  * check_devices() - Check return values and pointers
 372  *
 373  * This runs through a full sequence of uclass_first_device_check()...
 374  * uclass_next_device_check() checking that the return values and devices
 375  * are correct.
 376  *
 377  * @uts: Test state
 378  * @devlist: List of expected devices
 379  * @mask: Indicates which devices should return an error. Device n should
 380  *        return error (-NOENT - n) if bit n is set, or no error (i.e. 0) if
 381  *        bit n is clear.
 382  */
 383 static int check_devices(struct unit_test_state *uts,
 384                          struct udevice *devlist[], int mask)
 385 {
 386         int expected_ret;
 387         struct udevice *dev;
 388         int i;
 389
 390         expected_ret = (mask & 1) ? -ENOENT : 0;
 391         mask >>= 1;
 392         ut_asserteq(expected_ret,
 393                     uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 394         for (i = 0; i < 4; i++) {
 395                 ut_asserteq_ptr(devlist[i], dev);
 396                 expected_ret = (mask & 1) ? -ENOENT - (i + 1) : 0;
 397                 mask >>= 1;
 398                 ut_asserteq(expected_ret, uclass_next_device_check(&dev));
 399         }
 400         ut_asserteq_ptr(NULL, dev);
 401
 402         return 0;
 403 }
 404
 405 /* Test uclass_first_device_check() and uclass_next_device_check() */
 406 static int dm_test_first_next_ok_device(struct unit_test_state *uts)
 407 {
 408         struct dm_testprobe_pdata *pdata;
 409         struct udevice *dev, *parent = NULL, *devlist[4];
 410         int count;
 411         int ret;
 412
 413         /* There should be 4 devices */
 414         count = 0;
 415         for (ret = uclass_first_device_check(UCLASS_TEST_PROBE, &dev);
 416              dev;
 417              ret = uclass_next_device_check(&dev)) {
 418                 ut_assertok(ret);
 419                 devlist[count++] = dev;
 420                 parent = dev_get_parent(dev);
 421                 }
 422         ut_asserteq(4, count);
 423         ut_assertok(uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 424         ut_assertok(check_devices(uts, devlist, 0));
 425
 426         /* Remove them and try again, with an error on the second one */
 427         pdata = dev_get_platdata(devlist[1]);
 428         pdata->probe_err = -ENOENT - 1;
 429         device_remove(parent, DM_REMOVE_NORMAL);
 430         ut_assertok(check_devices(uts, devlist, 1 << 1));
 431
 432         /* Now an error on the first one */
 433         pdata = dev_get_platdata(devlist[0]);
 434         pdata->probe_err = -ENOENT - 0;
 435         device_remove(parent, DM_REMOVE_NORMAL);
 436         ut_assertok(check_devices(uts, devlist, 3 << 0));
 437
 438         /* Now errors on all */
 439         pdata = dev_get_platdata(devlist[2]);
 440         pdata->probe_err = -ENOENT - 2;
 441         pdata = dev_get_platdata(devlist[3]);
 442         pdata->probe_err = -ENOENT - 3;
 443         device_remove(parent, DM_REMOVE_NORMAL);
 444         ut_assertok(check_devices(uts, devlist, 0xf << 0));
 445
 446         return 0;
 447 }
 448 DM_TEST(dm_test_first_next_ok_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 449
 450 static const struct udevice_id fdt_dummy_ids[] = {
 451         { .compatible = "denx,u-boot-fdt-dummy", },
 452         { }
 453 };
 454
 455 UCLASS_DRIVER(fdt_dummy) = {
 456         .name           = "fdt-dummy",
 457         .id             = UCLASS_TEST_DUMMY,
 458         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 459 };
 460
 461 U_BOOT_DRIVER(fdt_dummy_drv) = {
 462         .name   = "fdt_dummy_drv",
 463         .of_match       = fdt_dummy_ids,
 464         .id     = UCLASS_TEST_DUMMY,
 465 };
 466
 467 static int dm_test_fdt_translation(struct unit_test_state *uts)
 468 {
 469         struct udevice *dev;
 470
 471         /* Some simple translations */
 472         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 473         ut_asserteq_str("dev@0,0", dev->name);
 474         ut_asserteq(0x8000, dev_read_addr(dev));
 475
 476         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
 477         ut_asserteq_str("dev@1,100", dev->name);
 478         ut_asserteq(0x9000, dev_read_addr(dev));
 479
 480         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 2, true, &dev));
 481         ut_asserteq_str("dev@2,200", dev->name);
 482         ut_asserteq(0xA000, dev_read_addr(dev));
 483
 484         /* No translation for busses with #size-cells == 0 */
 485         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 3, true, &dev));
 486         ut_asserteq_str("dev@42", dev->name);
 487         ut_asserteq(0x42, dev_read_addr(dev));
 488
 489         return 0;
 490 }
 491 DM_TEST(dm_test_fdt_translation, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 492
 493 static int dm_test_fdt_remap_addr_flat(struct unit_test_state *uts)
 494 {
 495         struct udevice *dev;
 496         fdt_addr_t addr;
 497         void *paddr;
 498
 499         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 500
 501         addr = devfdt_get_addr(dev);
 502         ut_asserteq(0x8000, addr);
 503
 504         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 505         ut_assertnonnull(paddr);
 506         ut_asserteq_ptr(paddr, devfdt_remap_addr(dev));
 507
 508         return 0;
 509 }
 510 DM_TEST(dm_test_fdt_remap_addr_flat,
 511         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 512
 513 static int dm_test_fdt_remap_addr_index_flat(struct unit_test_state *uts)
 514 {
 515         struct udevice *dev;
 516         fdt_addr_t addr;
 517         void *paddr;
 518
 519         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 520
 521         addr = devfdt_get_addr_index(dev, 0);
 522         ut_asserteq(0x8000, addr);
 523
 524         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 525         ut_assertnonnull(paddr);
 526         ut_asserteq_ptr(paddr, devfdt_remap_addr_index(dev, 0));
 527
 528         return 0;
 529 }
 530 DM_TEST(dm_test_fdt_remap_addr_index_flat,
 531         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 532
 533 static int dm_test_fdt_remap_addr_name_flat(struct unit_test_state *uts)
 534 {
 535         struct udevice *dev;
 536         fdt_addr_t addr;
 537         void *paddr;
 538
 539         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 540
 541         addr = devfdt_get_addr_name(dev, "sandbox-dummy-0");
 542         ut_asserteq(0x8000, addr);
 543
 544         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 545         ut_assertnonnull(paddr);
 546         ut_asserteq_ptr(paddr, devfdt_remap_addr_name(dev, "sandbox-dummy-0"));
 547
 548         return 0;
 549 }
 550 DM_TEST(dm_test_fdt_remap_addr_name_flat,
 551         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 552
 553 static int dm_test_fdt_remap_addr_live(struct unit_test_state *uts)
 554 {
 555         struct udevice *dev;
 556         fdt_addr_t addr;
 557         void *paddr;
 558
 559         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 560
 561         addr = dev_read_addr(dev);
 562         ut_asserteq(0x8000, addr);
 563
 564         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 565         ut_assertnonnull(paddr);
 566         ut_asserteq_ptr(paddr, dev_remap_addr(dev));
 567
 568         return 0;
 569 }
 570 DM_TEST(dm_test_fdt_remap_addr_live,
 571         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 572
 573 static int dm_test_fdt_remap_addr_index_live(struct unit_test_state *uts)
 574 {
 575         struct udevice *dev;
 576         fdt_addr_t addr;
 577         void *paddr;
 578
 579         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 580
 581         addr = dev_read_addr_index(dev, 0);
 582         ut_asserteq(0x8000, addr);
 583
 584         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 585         ut_assertnonnull(paddr);
 586         ut_asserteq_ptr(paddr, dev_remap_addr_index(dev, 0));
 587
 588         return 0;
 589 }
 590 DM_TEST(dm_test_fdt_remap_addr_index_live,
 591         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 592
 593 static int dm_test_fdt_remap_addr_name_live(struct unit_test_state *uts)
 594 {
 595         struct udevice *dev;
 596         fdt_addr_t addr;
 597         void *paddr;
 598
 599         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 600
 601         addr = dev_read_addr_name(dev, "sandbox-dummy-0");
 602         ut_asserteq(0x8000, addr);
 603
 604         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 605         ut_assertnonnull(paddr);
 606         ut_asserteq_ptr(paddr, dev_remap_addr_name(dev, "sandbox-dummy-0"));
 607
 608         return 0;
 609 }
 610 DM_TEST(dm_test_fdt_remap_addr_name_live,
 611         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 612
 613 static int dm_test_fdt_livetree_writing(struct unit_test_state *uts)
 614 {
 615         struct udevice *dev;
 616         ofnode node;
 617
 618         if (!of_live_active()) {
 619                 printf("Live tree not active; ignore test\n");
 620                 return 0;
 621         }
 622
 623         /* Test enabling devices */
 624
 625         node = ofnode_path("/usb@2");
 626
 627         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 628         ofnode_set_enabled(node, true);
 629         ut_assert(of_device_is_available(ofnode_to_np(node)));
 630
 631         device_bind_driver_to_node(dm_root(), "usb_sandbox", "usb@2", node,
 632                                    &dev);
 633         ut_assertok(uclass_find_device_by_seq(UCLASS_USB, 2, true, &dev));
 634
 635         /* Test string property setting */
 636
 637         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 638         ofnode_write_string(node, "compatible", "gdsys,super-usb");
 639         ut_assert(device_is_compatible(dev, "gdsys,super-usb"));
 640         ofnode_write_string(node, "compatible", "sandbox,usb");
 641         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 642
 643         /* Test setting generic properties */
 644
 645         /* Non-existent in DTB */
 646         ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr(dev));
 647         /* reg = 0x42, size = 0x100 */
 648         ut_assertok(ofnode_write_prop(node, "reg", 8,
 649                                       "\x00\x00\x00\x42\x00\x00\x01\x00"));
 650         ut_asserteq(0x42, dev_read_addr(dev));
 651
 652         /* Test disabling devices */
 653
 654         device_remove(dev, DM_REMOVE_NORMAL);
 655         device_unbind(dev);
 656
 657         ut_assert(of_device_is_available(ofnode_to_np(node)));
 658         ofnode_set_enabled(node, false);
 659         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 660
 661         return 0;
 662 }
 663 DM_TEST(dm_test_fdt_livetree_writing, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 664
 665 static int dm_test_fdt_disable_enable_by_path(struct unit_test_state *uts)
 666 {
 667         ofnode node;
 668
 669         if (!of_live_active()) {
 670                 printf("Live tree not active; ignore test\n");
 671                 return 0;
 672         }
 673
 674         node = ofnode_path("/usb@2");
 675
 676         /* Test enabling devices */
 677
 678         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 679         dev_enable_by_path("/usb@2");
 680         ut_assert(of_device_is_available(ofnode_to_np(node)));
 681
 682         /* Test disabling devices */
 683
 684         ut_assert(of_device_is_available(ofnode_to_np(node)));
 685         dev_disable_by_path("/usb@2");
 686         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 687
 688         return 0;
 689 }
 690 DM_TEST(dm_test_fdt_disable_enable_by_path, DM_TESTF_SCAN_PDATA |
 691                                             DM_TESTF_SCAN_FDT);
 692
 693 /* Test a few uclass phandle functions */
 694 static int dm_test_fdt_phandle(struct unit_test_state *uts)
 695 {
 696         struct udevice *back, *dev, *dev2;
 697
 698         ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back));
 699         ut_asserteq(-ENOENT, uclass_find_device_by_phandle(UCLASS_REGULATOR,
 700                                                         back, "missing", &dev));
 701         ut_assertok(uclass_find_device_by_phandle(UCLASS_REGULATOR, back,
 702                                                   "power-supply", &dev));
 703         ut_asserteq(0, device_active(dev));
 704         ut_asserteq_str("ldo1", dev->name);
 705         ut_assertok(uclass_get_device_by_phandle(UCLASS_REGULATOR, back,
 706                                                  "power-supply", &dev2));
 707         ut_asserteq_ptr(dev, dev2);
 708
 709         return 0;
 710 }
 711 DM_TEST(dm_test_fdt_phandle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 712
 713 /* Test device_find_first_child_by_uclass() */
 714 static int dm_test_first_child(struct unit_test_state *uts)
 715 {
 716         struct udevice *i2c, *dev, *dev2;
 717
 718         ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
 719         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_RTC, &dev));
 720         ut_asserteq_str("rtc@43", dev->name);
 721         ut_assertok(device_find_child_by_name(i2c, "rtc@43", &dev2));
 722         ut_asserteq_ptr(dev, dev2);
 723         ut_assertok(device_find_child_by_name(i2c, "rtc@61", &dev2));
 724         ut_asserteq_str("rtc@61", dev2->name);
 725
 726         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_I2C_EEPROM,
 727                                                       &dev));
 728         ut_asserteq_str("eeprom@2c", dev->name);
 729         ut_assertok(device_find_child_by_name(i2c, "eeprom@2c", &dev2));
 730         ut_asserteq_ptr(dev, dev2);
 731
 732         ut_asserteq(-ENODEV, device_find_first_child_by_uclass(i2c,
 733                                                         UCLASS_VIDEO, &dev));
 734         ut_asserteq(-ENODEV, device_find_child_by_name(i2c, "missing", &dev));
 735
 736         return 0;
 737 }
 738 DM_TEST(dm_test_first_child, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);