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 struct dm_testdevres_pdata {
 157         void *ptr;
 158 };
 159
 160 struct dm_testdevres_priv {
 161         void *ptr;
 162         void *ptr_ofdata;
 163 };
 164
 165 static int testdevres_drv_bind(struct udevice *dev)
 166 {
 167         struct dm_testdevres_pdata *pdata = dev_get_platdata(dev);
 168
 169         pdata->ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE, 0);
 170
 171         return 0;
 172 }
 173
 174 static int testdevres_drv_ofdata_to_platdata(struct udevice *dev)
 175 {
 176         struct dm_testdevres_priv *priv = dev_get_priv(dev);
 177
 178         priv->ptr_ofdata = devm_kmalloc(dev, TEST_DEVRES_SIZE3, 0);
 179
 180         return 0;
 181 }
 182
 183 static int testdevres_drv_probe(struct udevice *dev)
 184 {
 185         struct dm_testdevres_priv *priv = dev_get_priv(dev);
 186
 187         priv->ptr = devm_kmalloc(dev, TEST_DEVRES_SIZE2, 0);
 188
 189         return 0;
 190 }
 191
 192 static const struct udevice_id testdevres_ids[] = {
 193         { .compatible = "denx,u-boot-devres-test" },
 194         { }
 195 };
 196
 197 U_BOOT_DRIVER(testdevres_drv) = {
 198         .name   = "testdevres_drv",
 199         .of_match       = testdevres_ids,
 200         .id     = UCLASS_TEST_DEVRES,
 201         .bind   = testdevres_drv_bind,
 202         .ofdata_to_platdata     = testdevres_drv_ofdata_to_platdata,
 203         .probe  = testdevres_drv_probe,
 204         .platdata_auto_alloc_size       = sizeof(struct dm_testdevres_pdata),
 205         .priv_auto_alloc_size   = sizeof(struct dm_testdevres_priv),
 206 };
 207
 208 UCLASS_DRIVER(testdevres) = {
 209         .name           = "testdevres",
 210         .id             = UCLASS_TEST_DEVRES,
 211         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 212 };
 213
 214 int dm_check_devices(struct unit_test_state *uts, int num_devices)
 215 {
 216         struct udevice *dev;
 217         int ret;
 218         int i;
 219
 220         /*
 221          * Now check that the ping adds are what we expect. This is using the
 222          * ping-add property in each node.
 223          */
 224         for (i = 0; i < num_devices; i++) {
 225                 uint32_t base;
 226
 227                 ret = uclass_get_device(UCLASS_TEST_FDT, i, &dev);
 228                 ut_assert(!ret);
 229
 230                 /*
 231                  * Get the 'ping-expect' property, which tells us what the
 232                  * ping add should be. We don't use the platdata because we
 233                  * want to test the code that sets that up
 234                  * (testfdt_drv_probe()).
 235                  */
 236                 base = fdtdec_get_addr(gd->fdt_blob, dev_of_offset(dev),
 237                                        "ping-expect");
 238                 debug("dev=%d, base=%d: %s\n", i, base,
 239                       fdt_get_name(gd->fdt_blob, dev_of_offset(dev), NULL));
 240
 241                 ut_assert(!dm_check_operations(uts, dev, base,
 242                                                dev_get_priv(dev)));
 243         }
 244
 245         return 0;
 246 }
 247
 248 /* Test that FDT-based binding works correctly */
 249 static int dm_test_fdt(struct unit_test_state *uts)
 250 {
 251         const int num_devices = 8;
 252         struct udevice *dev;
 253         struct uclass *uc;
 254         int ret;
 255         int i;
 256
 257         ret = dm_scan_fdt(gd->fdt_blob, false);
 258         ut_assert(!ret);
 259
 260         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 261         ut_assert(!ret);
 262
 263         /* These are num_devices compatible root-level device tree nodes */
 264         ut_asserteq(num_devices, list_count_items(&uc->dev_head));
 265
 266         /* Each should have platform data but no private data */
 267         for (i = 0; i < num_devices; i++) {
 268                 ret = uclass_find_device(UCLASS_TEST_FDT, i, &dev);
 269                 ut_assert(!ret);
 270                 ut_assert(!dev_get_priv(dev));
 271                 ut_assert(dev->platdata);
 272         }
 273
 274         ut_assertok(dm_check_devices(uts, num_devices));
 275
 276         return 0;
 277 }
 278 DM_TEST(dm_test_fdt, 0);
 279
 280 static int dm_test_alias_highest_id(struct unit_test_state *uts)
 281 {
 282         int ret;
 283
 284         ret = dev_read_alias_highest_id("eth");
 285         ut_asserteq(5, ret);
 286
 287         ret = dev_read_alias_highest_id("gpio");
 288         ut_asserteq(2, ret);
 289
 290         ret = dev_read_alias_highest_id("pci");
 291         ut_asserteq(2, ret);
 292
 293         ret = dev_read_alias_highest_id("i2c");
 294         ut_asserteq(0, ret);
 295
 296         ret = dev_read_alias_highest_id("deadbeef");
 297         ut_asserteq(-1, ret);
 298
 299         return 0;
 300 }
 301 DM_TEST(dm_test_alias_highest_id, 0);
 302
 303 static int dm_test_fdt_pre_reloc(struct unit_test_state *uts)
 304 {
 305         struct uclass *uc;
 306         int ret;
 307
 308         ret = dm_scan_fdt(gd->fdt_blob, true);
 309         ut_assert(!ret);
 310
 311         ret = uclass_get(UCLASS_TEST_FDT, &uc);
 312         ut_assert(!ret);
 313
 314         /*
 315          * These are 2 pre-reloc devices:
 316          * one with "u-boot,dm-pre-reloc" property (a-test node), and the other
 317          * one whose driver marked with DM_FLAG_PRE_RELOC flag (h-test node).
 318          */
 319         ut_asserteq(2, list_count_items(&uc->dev_head));
 320
 321         return 0;
 322 }
 323 DM_TEST(dm_test_fdt_pre_reloc, 0);
 324
 325 /* Test that sequence numbers are allocated properly */
 326 static int dm_test_fdt_uclass_seq(struct unit_test_state *uts)
 327 {
 328         struct udevice *dev;
 329
 330         /* A few basic santiy tests */
 331         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 3, true, &dev));
 332         ut_asserteq_str("b-test", dev->name);
 333
 334         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_FDT, 8, true, &dev));
 335         ut_asserteq_str("a-test", dev->name);
 336
 337         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 5,
 338                                                        true, &dev));
 339         ut_asserteq_ptr(NULL, dev);
 340
 341         /* Test aliases */
 342         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 6, &dev));
 343         ut_asserteq_str("e-test", dev->name);
 344
 345         ut_asserteq(-ENODEV, uclass_find_device_by_seq(UCLASS_TEST_FDT, 7,
 346                                                        true, &dev));
 347
 348         /*
 349          * Note that c-test nodes are not probed since it is not a top-level
 350          * node
 351          */
 352         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 3, &dev));
 353         ut_asserteq_str("b-test", dev->name);
 354
 355         /*
 356          * d-test wants sequence number 3 also, but it can't have it because
 357          * b-test gets it first.
 358          */
 359         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 2, &dev));
 360         ut_asserteq_str("d-test", dev->name);
 361
 362         /* d-test actually gets 0 */
 363         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 0, &dev));
 364         ut_asserteq_str("d-test", dev->name);
 365
 366         /* initially no one wants seq 1 */
 367         ut_asserteq(-ENODEV, uclass_get_device_by_seq(UCLASS_TEST_FDT, 1,
 368                                                       &dev));
 369         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 0, &dev));
 370         ut_assertok(uclass_get_device(UCLASS_TEST_FDT, 4, &dev));
 371
 372         /* But now that it is probed, we can find it */
 373         ut_assertok(uclass_get_device_by_seq(UCLASS_TEST_FDT, 1, &dev));
 374         ut_asserteq_str("f-test", dev->name);
 375
 376         return 0;
 377 }
 378 DM_TEST(dm_test_fdt_uclass_seq, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 379
 380 /* Test that we can find a device by device tree offset */
 381 static int dm_test_fdt_offset(struct unit_test_state *uts)
 382 {
 383         const void *blob = gd->fdt_blob;
 384         struct udevice *dev;
 385         int node;
 386
 387         node = fdt_path_offset(blob, "/e-test");
 388         ut_assert(node > 0);
 389         ut_assertok(uclass_get_device_by_of_offset(UCLASS_TEST_FDT, node,
 390                                                    &dev));
 391         ut_asserteq_str("e-test", dev->name);
 392
 393         /* This node should not be bound */
 394         node = fdt_path_offset(blob, "/junk");
 395         ut_assert(node > 0);
 396         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 397                                                             node, &dev));
 398
 399         /* This is not a top level node so should not be probed */
 400         node = fdt_path_offset(blob, "/some-bus/c-test@5");
 401         ut_assert(node > 0);
 402         ut_asserteq(-ENODEV, uclass_get_device_by_of_offset(UCLASS_TEST_FDT,
 403                                                             node, &dev));
 404
 405         return 0;
 406 }
 407 DM_TEST(dm_test_fdt_offset,
 408         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 409
 410 /**
 411  * Test various error conditions with uclass_first_device() and
 412  * uclass_next_device()
 413  */
 414 static int dm_test_first_next_device(struct unit_test_state *uts)
 415 {
 416         struct dm_testprobe_pdata *pdata;
 417         struct udevice *dev, *parent = NULL;
 418         int count;
 419         int ret;
 420
 421         /* There should be 4 devices */
 422         for (ret = uclass_first_device(UCLASS_TEST_PROBE, &dev), count = 0;
 423              dev;
 424              ret = uclass_next_device(&dev)) {
 425                 count++;
 426                 parent = dev_get_parent(dev);
 427                 }
 428         ut_assertok(ret);
 429         ut_asserteq(4, count);
 430
 431         /* Remove them and try again, with an error on the second one */
 432         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 1, &dev));
 433         pdata = dev_get_platdata(dev);
 434         pdata->probe_err = -ENOMEM;
 435         device_remove(parent, DM_REMOVE_NORMAL);
 436         ut_assertok(uclass_first_device(UCLASS_TEST_PROBE, &dev));
 437         ut_asserteq(-ENOMEM, uclass_next_device(&dev));
 438         ut_asserteq_ptr(dev, NULL);
 439
 440         /* Now an error on the first one */
 441         ut_assertok(uclass_get_device(UCLASS_TEST_PROBE, 0, &dev));
 442         pdata = dev_get_platdata(dev);
 443         pdata->probe_err = -ENOENT;
 444         device_remove(parent, DM_REMOVE_NORMAL);
 445         ut_asserteq(-ENOENT, uclass_first_device(UCLASS_TEST_PROBE, &dev));
 446
 447         return 0;
 448 }
 449 DM_TEST(dm_test_first_next_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 450
 451 /* Test iteration through devices in a uclass */
 452 static int dm_test_uclass_foreach(struct unit_test_state *uts)
 453 {
 454         struct udevice *dev;
 455         struct uclass *uc;
 456         int count;
 457
 458         count = 0;
 459         uclass_id_foreach_dev(UCLASS_TEST_FDT, dev, uc)
 460                 count++;
 461         ut_asserteq(8, count);
 462
 463         count = 0;
 464         uclass_foreach_dev(dev, uc)
 465                 count++;
 466         ut_asserteq(8, count);
 467
 468         return 0;
 469 }
 470 DM_TEST(dm_test_uclass_foreach, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 471
 472 /**
 473  * check_devices() - Check return values and pointers
 474  *
 475  * This runs through a full sequence of uclass_first_device_check()...
 476  * uclass_next_device_check() checking that the return values and devices
 477  * are correct.
 478  *
 479  * @uts: Test state
 480  * @devlist: List of expected devices
 481  * @mask: Indicates which devices should return an error. Device n should
 482  *        return error (-NOENT - n) if bit n is set, or no error (i.e. 0) if
 483  *        bit n is clear.
 484  */
 485 static int check_devices(struct unit_test_state *uts,
 486                          struct udevice *devlist[], int mask)
 487 {
 488         int expected_ret;
 489         struct udevice *dev;
 490         int i;
 491
 492         expected_ret = (mask & 1) ? -ENOENT : 0;
 493         mask >>= 1;
 494         ut_asserteq(expected_ret,
 495                     uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 496         for (i = 0; i < 4; i++) {
 497                 ut_asserteq_ptr(devlist[i], dev);
 498                 expected_ret = (mask & 1) ? -ENOENT - (i + 1) : 0;
 499                 mask >>= 1;
 500                 ut_asserteq(expected_ret, uclass_next_device_check(&dev));
 501         }
 502         ut_asserteq_ptr(NULL, dev);
 503
 504         return 0;
 505 }
 506
 507 /* Test uclass_first_device_check() and uclass_next_device_check() */
 508 static int dm_test_first_next_ok_device(struct unit_test_state *uts)
 509 {
 510         struct dm_testprobe_pdata *pdata;
 511         struct udevice *dev, *parent = NULL, *devlist[4];
 512         int count;
 513         int ret;
 514
 515         /* There should be 4 devices */
 516         count = 0;
 517         for (ret = uclass_first_device_check(UCLASS_TEST_PROBE, &dev);
 518              dev;
 519              ret = uclass_next_device_check(&dev)) {
 520                 ut_assertok(ret);
 521                 devlist[count++] = dev;
 522                 parent = dev_get_parent(dev);
 523                 }
 524         ut_asserteq(4, count);
 525         ut_assertok(uclass_first_device_check(UCLASS_TEST_PROBE, &dev));
 526         ut_assertok(check_devices(uts, devlist, 0));
 527
 528         /* Remove them and try again, with an error on the second one */
 529         pdata = dev_get_platdata(devlist[1]);
 530         pdata->probe_err = -ENOENT - 1;
 531         device_remove(parent, DM_REMOVE_NORMAL);
 532         ut_assertok(check_devices(uts, devlist, 1 << 1));
 533
 534         /* Now an error on the first one */
 535         pdata = dev_get_platdata(devlist[0]);
 536         pdata->probe_err = -ENOENT - 0;
 537         device_remove(parent, DM_REMOVE_NORMAL);
 538         ut_assertok(check_devices(uts, devlist, 3 << 0));
 539
 540         /* Now errors on all */
 541         pdata = dev_get_platdata(devlist[2]);
 542         pdata->probe_err = -ENOENT - 2;
 543         pdata = dev_get_platdata(devlist[3]);
 544         pdata->probe_err = -ENOENT - 3;
 545         device_remove(parent, DM_REMOVE_NORMAL);
 546         ut_assertok(check_devices(uts, devlist, 0xf << 0));
 547
 548         return 0;
 549 }
 550 DM_TEST(dm_test_first_next_ok_device, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 551
 552 static const struct udevice_id fdt_dummy_ids[] = {
 553         { .compatible = "denx,u-boot-fdt-dummy", },
 554         { }
 555 };
 556
 557 UCLASS_DRIVER(fdt_dummy) = {
 558         .name           = "fdt-dummy",
 559         .id             = UCLASS_TEST_DUMMY,
 560         .flags          = DM_UC_FLAG_SEQ_ALIAS,
 561 };
 562
 563 U_BOOT_DRIVER(fdt_dummy_drv) = {
 564         .name   = "fdt_dummy_drv",
 565         .of_match       = fdt_dummy_ids,
 566         .id     = UCLASS_TEST_DUMMY,
 567 };
 568
 569 static int dm_test_fdt_translation(struct unit_test_state *uts)
 570 {
 571         struct udevice *dev;
 572         fdt32_t dma_addr[2];
 573
 574         /* Some simple translations */
 575         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 576         ut_asserteq_str("dev@0,0", dev->name);
 577         ut_asserteq(0x8000, dev_read_addr(dev));
 578
 579         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
 580         ut_asserteq_str("dev@1,100", dev->name);
 581         ut_asserteq(0x9000, dev_read_addr(dev));
 582
 583         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 2, true, &dev));
 584         ut_asserteq_str("dev@2,200", dev->name);
 585         ut_asserteq(0xA000, dev_read_addr(dev));
 586
 587         /* No translation for busses with #size-cells == 0 */
 588         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 3, true, &dev));
 589         ut_asserteq_str("dev@42", dev->name);
 590         ut_asserteq(0x42, dev_read_addr(dev));
 591
 592         /* dma address translation */
 593         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 594         dma_addr[0] = cpu_to_be32(0);
 595         dma_addr[1] = cpu_to_be32(0);
 596         ut_asserteq(0x10000000, dev_translate_dma_address(dev, dma_addr));
 597
 598         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 1, true, &dev));
 599         dma_addr[0] = cpu_to_be32(1);
 600         dma_addr[1] = cpu_to_be32(0x100);
 601         ut_asserteq(0x20000000, dev_translate_dma_address(dev, dma_addr));
 602
 603         return 0;
 604 }
 605 DM_TEST(dm_test_fdt_translation, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 606
 607 static int dm_test_fdt_remap_addr_flat(struct unit_test_state *uts)
 608 {
 609         struct udevice *dev;
 610         fdt_addr_t addr;
 611         void *paddr;
 612
 613         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 614
 615         addr = devfdt_get_addr(dev);
 616         ut_asserteq(0x8000, addr);
 617
 618         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 619         ut_assertnonnull(paddr);
 620         ut_asserteq_ptr(paddr, devfdt_remap_addr(dev));
 621
 622         return 0;
 623 }
 624 DM_TEST(dm_test_fdt_remap_addr_flat,
 625         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 626
 627 static int dm_test_fdt_remap_addr_index_flat(struct unit_test_state *uts)
 628 {
 629         struct udevice *dev;
 630         fdt_addr_t addr;
 631         fdt_size_t size;
 632         void *paddr;
 633
 634         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 635
 636         addr = devfdt_get_addr_size_index(dev, 0, &size);
 637         ut_asserteq(0x8000, addr);
 638         ut_asserteq(0x1000, size);
 639
 640         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 641         ut_assertnonnull(paddr);
 642         ut_asserteq_ptr(paddr, devfdt_remap_addr_index(dev, 0));
 643
 644         return 0;
 645 }
 646 DM_TEST(dm_test_fdt_remap_addr_index_flat,
 647         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 648
 649 static int dm_test_fdt_remap_addr_name_flat(struct unit_test_state *uts)
 650 {
 651         struct udevice *dev;
 652         fdt_addr_t addr;
 653         fdt_size_t size;
 654         void *paddr;
 655
 656         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 657
 658         addr = devfdt_get_addr_size_name(dev, "sandbox-dummy-0", &size);
 659         ut_asserteq(0x8000, addr);
 660         ut_asserteq(0x1000, size);
 661
 662         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 663         ut_assertnonnull(paddr);
 664         ut_asserteq_ptr(paddr, devfdt_remap_addr_name(dev, "sandbox-dummy-0"));
 665
 666         return 0;
 667 }
 668 DM_TEST(dm_test_fdt_remap_addr_name_flat,
 669         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT | DM_TESTF_FLAT_TREE);
 670
 671 static int dm_test_fdt_remap_addr_live(struct unit_test_state *uts)
 672 {
 673         struct udevice *dev;
 674         fdt_addr_t addr;
 675         void *paddr;
 676
 677         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 678
 679         addr = dev_read_addr(dev);
 680         ut_asserteq(0x8000, addr);
 681
 682         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 683         ut_assertnonnull(paddr);
 684         ut_asserteq_ptr(paddr, dev_remap_addr(dev));
 685
 686         return 0;
 687 }
 688 DM_TEST(dm_test_fdt_remap_addr_live,
 689         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 690
 691 static int dm_test_fdt_remap_addr_index_live(struct unit_test_state *uts)
 692 {
 693         struct udevice *dev;
 694         fdt_addr_t addr;
 695         fdt_size_t size;
 696         void *paddr;
 697
 698         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 699
 700         addr = dev_read_addr_size_index(dev, 0, &size);
 701         ut_asserteq(0x8000, addr);
 702         ut_asserteq(0x1000, size);
 703
 704         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 705         ut_assertnonnull(paddr);
 706         ut_asserteq_ptr(paddr, dev_remap_addr_index(dev, 0));
 707
 708         return 0;
 709 }
 710 DM_TEST(dm_test_fdt_remap_addr_index_live,
 711         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 712
 713 static int dm_test_fdt_remap_addr_name_live(struct unit_test_state *uts)
 714 {
 715         struct udevice *dev;
 716         fdt_addr_t addr;
 717         fdt_size_t size;
 718         void *paddr;
 719
 720         ut_assertok(uclass_find_device_by_seq(UCLASS_TEST_DUMMY, 0, true, &dev));
 721
 722         addr = dev_read_addr_size_name(dev, "sandbox-dummy-0", &size);
 723         ut_asserteq(0x8000, addr);
 724         ut_asserteq(0x1000, size);
 725
 726         paddr = map_physmem(addr, 0, MAP_NOCACHE);
 727         ut_assertnonnull(paddr);
 728         ut_asserteq_ptr(paddr, dev_remap_addr_name(dev, "sandbox-dummy-0"));
 729
 730         return 0;
 731 }
 732 DM_TEST(dm_test_fdt_remap_addr_name_live,
 733         DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 734
 735 static int dm_test_fdt_livetree_writing(struct unit_test_state *uts)
 736 {
 737         struct udevice *dev;
 738         ofnode node;
 739
 740         if (!of_live_active()) {
 741                 printf("Live tree not active; ignore test\n");
 742                 return 0;
 743         }
 744
 745         /* Test enabling devices */
 746
 747         node = ofnode_path("/usb@2");
 748
 749         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 750         ofnode_set_enabled(node, true);
 751         ut_assert(of_device_is_available(ofnode_to_np(node)));
 752
 753         device_bind_driver_to_node(dm_root(), "usb_sandbox", "usb@2", node,
 754                                    &dev);
 755         ut_assertok(uclass_find_device_by_seq(UCLASS_USB, 2, true, &dev));
 756
 757         /* Test string property setting */
 758
 759         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 760         ofnode_write_string(node, "compatible", "gdsys,super-usb");
 761         ut_assert(device_is_compatible(dev, "gdsys,super-usb"));
 762         ofnode_write_string(node, "compatible", "sandbox,usb");
 763         ut_assert(device_is_compatible(dev, "sandbox,usb"));
 764
 765         /* Test setting generic properties */
 766
 767         /* Non-existent in DTB */
 768         ut_asserteq(FDT_ADDR_T_NONE, dev_read_addr(dev));
 769         /* reg = 0x42, size = 0x100 */
 770         ut_assertok(ofnode_write_prop(node, "reg", 8,
 771                                       "\x00\x00\x00\x42\x00\x00\x01\x00"));
 772         ut_asserteq(0x42, dev_read_addr(dev));
 773
 774         /* Test disabling devices */
 775
 776         device_remove(dev, DM_REMOVE_NORMAL);
 777         device_unbind(dev);
 778
 779         ut_assert(of_device_is_available(ofnode_to_np(node)));
 780         ofnode_set_enabled(node, false);
 781         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 782
 783         return 0;
 784 }
 785 DM_TEST(dm_test_fdt_livetree_writing, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 786
 787 static int dm_test_fdt_disable_enable_by_path(struct unit_test_state *uts)
 788 {
 789         ofnode node;
 790
 791         if (!of_live_active()) {
 792                 printf("Live tree not active; ignore test\n");
 793                 return 0;
 794         }
 795
 796         node = ofnode_path("/usb@2");
 797
 798         /* Test enabling devices */
 799
 800         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 801         dev_enable_by_path("/usb@2");
 802         ut_assert(of_device_is_available(ofnode_to_np(node)));
 803
 804         /* Test disabling devices */
 805
 806         ut_assert(of_device_is_available(ofnode_to_np(node)));
 807         dev_disable_by_path("/usb@2");
 808         ut_assert(!of_device_is_available(ofnode_to_np(node)));
 809
 810         return 0;
 811 }
 812 DM_TEST(dm_test_fdt_disable_enable_by_path, DM_TESTF_SCAN_PDATA |
 813                                             DM_TESTF_SCAN_FDT);
 814
 815 /* Test a few uclass phandle functions */
 816 static int dm_test_fdt_phandle(struct unit_test_state *uts)
 817 {
 818         struct udevice *back, *dev, *dev2;
 819
 820         ut_assertok(uclass_find_first_device(UCLASS_PANEL_BACKLIGHT, &back));
 821         ut_asserteq(-ENOENT, uclass_find_device_by_phandle(UCLASS_REGULATOR,
 822                                                         back, "missing", &dev));
 823         ut_assertok(uclass_find_device_by_phandle(UCLASS_REGULATOR, back,
 824                                                   "power-supply", &dev));
 825         ut_asserteq(0, device_active(dev));
 826         ut_asserteq_str("ldo1", dev->name);
 827         ut_assertok(uclass_get_device_by_phandle(UCLASS_REGULATOR, back,
 828                                                  "power-supply", &dev2));
 829         ut_asserteq_ptr(dev, dev2);
 830
 831         return 0;
 832 }
 833 DM_TEST(dm_test_fdt_phandle, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 834
 835 /* Test device_find_first_child_by_uclass() */
 836 static int dm_test_first_child(struct unit_test_state *uts)
 837 {
 838         struct udevice *i2c, *dev, *dev2;
 839
 840         ut_assertok(uclass_first_device_err(UCLASS_I2C, &i2c));
 841         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_RTC, &dev));
 842         ut_asserteq_str("rtc@43", dev->name);
 843         ut_assertok(device_find_child_by_name(i2c, "rtc@43", &dev2));
 844         ut_asserteq_ptr(dev, dev2);
 845         ut_assertok(device_find_child_by_name(i2c, "rtc@61", &dev2));
 846         ut_asserteq_str("rtc@61", dev2->name);
 847
 848         ut_assertok(device_find_first_child_by_uclass(i2c, UCLASS_I2C_EEPROM,
 849                                                       &dev));
 850         ut_asserteq_str("eeprom@2c", dev->name);
 851         ut_assertok(device_find_child_by_name(i2c, "eeprom@2c", &dev2));
 852         ut_asserteq_ptr(dev, dev2);
 853
 854         ut_asserteq(-ENODEV, device_find_first_child_by_uclass(i2c,
 855                                                         UCLASS_VIDEO, &dev));
 856         ut_asserteq(-ENODEV, device_find_child_by_name(i2c, "missing", &dev));
 857
 858         return 0;
 859 }
 860 DM_TEST(dm_test_first_child, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);
 861
 862 /* Test integer functions in dm_read_...() */
 863 static int dm_test_read_int(struct unit_test_state *uts)
 864 {
 865         struct udevice *dev;
 866         u32 val32;
 867         s32 sval;
 868         uint val;
 869
 870         ut_assertok(uclass_first_device_err(UCLASS_TEST_FDT, &dev));
 871         ut_asserteq_str("a-test", dev->name);
 872         ut_assertok(dev_read_u32(dev, "int-value", &val32));
 873         ut_asserteq(1234, val32);
 874
 875         ut_asserteq(-EINVAL, dev_read_u32(dev, "missing", &val32));
 876         ut_asserteq(6, dev_read_u32_default(dev, "missing", 6));
 877
 878         ut_asserteq(1234, dev_read_u32_default(dev, "int-value", 6));
 879         ut_asserteq(1234, val32);
 880
 881         ut_asserteq(-EINVAL, dev_read_s32(dev, "missing", &sval));
 882         ut_asserteq(6, dev_read_s32_default(dev, "missing", 6));
 883
 884         ut_asserteq(-1234, dev_read_s32_default(dev, "uint-value", 6));
 885         ut_assertok(dev_read_s32(dev, "uint-value", &sval));
 886         ut_asserteq(-1234, sval);
 887
 888         val = 0;
 889         ut_asserteq(-EINVAL, dev_read_u32u(dev, "missing", &val));
 890         ut_assertok(dev_read_u32u(dev, "uint-value", &val));
 891         ut_asserteq(-1234, val);
 892
 893         return 0;
 894 }
 895 DM_TEST(dm_test_read_int, DM_TESTF_SCAN_PDATA | DM_TESTF_SCAN_FDT);