-
Notifications
You must be signed in to change notification settings - Fork 1
/
qcdt.c
1235 lines (1088 loc) · 51.2 KB
/
qcdt.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/* Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <lib/boot.h>
#include <lib/boot/internal/boot_internal.h>
#include <lib/boot/qcdt.h>
#include <lib/boot/internal/qcdt.h>
#include <libfdt.h>
#ifndef __WEAK
#define __WEAK __attribute__((weak))
#endif
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(a) (sizeof(a) / sizeof(*(a)))
#endif
typedef enum {
FDT_PARSER_UNKNOWN = -1,
FDT_PARSER_QCOM = 0,
FDT_PARSER_QCOM_LGE,
FDT_PARSER_QCOM_OPPO,
FDT_PARSER_QCOM_MOTOROLA,
} fdt_parser_t;
static int devtree_entry_add_if_excact_match(dt_entry_local_t *cur_dt_entry, dt_entry_node_t *dt_list);
static dt_entry_local_t *devtree_get_best_entry(dt_entry_node_t *dt_list);
static int devtree_delete_incompatible_entries2(dt_entry_node_t *dt_list, boot_uint32_t dtb_info);
static const char *msm_id_names[] = {
"htc,project-id",
"qcom,msm-id",
};
__WEAK boot_uint32_t libboot_qcdt_get_lge_rev(void)
{
return 0;
}
__WEAK boot_uint32_t libboot_qcdt_get_oppo_id0(void)
{
return 0;
}
__WEAK boot_uint32_t libboot_qcdt_get_oppo_id1(void)
{
return 0;
}
__WEAK const char *libboot_qcdt_get_motorola_model(void)
{
return "";
}
__WEAK const char *libboot_qcdt_get_default_parser(void)
{
return NULL;
}
/* Add function to allocate dt entry list, used for recording
* the entry which conform to devtree_entry_add_if_excact_match()
*/
dt_entry_node_t *dt_entry_list_alloc_node(void)
{
dt_entry_node_t *dt_node_member = NULL;
dt_node_member = (dt_entry_node_t *) libboot_alloc(sizeof(dt_entry_node_t));
LIBBOOT_ASSERT(dt_node_member);
libboot_list_clear_node(&dt_node_member->node);
dt_node_member->dt_entry_m = (dt_entry_local_t *) libboot_alloc(sizeof(dt_entry_local_t));
LIBBOOT_ASSERT(dt_node_member->dt_entry_m);
libboot_platform_memset(dt_node_member->dt_entry_m , 0, sizeof(dt_entry_local_t));
return dt_node_member;
}
void dt_entry_list_insert(dt_entry_node_t *dt_list, dt_entry_node_t *dt_node_member)
{
libboot_list_add_tail(&dt_list->node, &dt_node_member->node);
}
void dt_entry_list_delete(dt_entry_node_t *dt_node_member)
{
if (libboot_list_in_list(&dt_node_member->node)) {
libboot_list_delete(&dt_node_member->node);
libboot_free(dt_node_member->dt_entry_m);
libboot_free(dt_node_member);
}
}
dt_entry_node_t *dt_entry_list_create(void)
{
dt_entry_node_t *dt_list = (dt_entry_node_t *) libboot_alloc(sizeof(dt_entry_node_t));
if (!dt_list)
return NULL;
libboot_list_initialize(&dt_list->node);
dt_list->dt_entry_m = NULL;
return dt_list;
}
void dt_entry_list_free(dt_entry_node_t *dt_list)
{
while (!libboot_list_is_empty(&dt_list->node)) {
dt_entry_node_t *dt_node = libboot_list_remove_tail_type(&dt_list->node, dt_entry_node_t, node);
dt_entry_list_delete(dt_node);
}
libboot_free(dt_list);
}
static fdt_parser_t libboot_qcdt_get_parser(const char *parser)
{
if (!parser)
return FDT_PARSER_UNKNOWN;
if (!libboot_platform_strcmp(parser, "qcom"))
return FDT_PARSER_QCOM;
if (!libboot_platform_strcmp(parser, "qcom_lge"))
return FDT_PARSER_QCOM_LGE;
if (!libboot_platform_strcmp(parser, "qcom_oppo"))
return FDT_PARSER_QCOM_OPPO;
if (!libboot_platform_strcmp(parser, "qcom_motorola"))
return FDT_PARSER_QCOM_MOTOROLA;
return FDT_PARSER_UNKNOWN;
}
int libboot_qcdt_generate_entries(void *dtb, boot_uint32_t dtb_size, dt_entry_node_t *dtb_list, dt_entry_add_cb_t cb, const char *sparser)
{
int root_offset;
const void *prop = NULL;
const char *plat_prop = NULL;
const char *board_prop = NULL;
const char *pmic_prop = NULL;
char *model = NULL;
dt_entry_local_t *cur_dt_entry;
dt_entry_local_t *dt_entry_array = NULL;
board_id_t *board_data = NULL;
plat_id_t *platform_data = NULL;
pmic_id_t *pmic_data = NULL;
int len;
int len_board_id;
int len_board_id_item = 0;
int len_plat_id;
int len_plat_id_item = 0;
int len_pmic_id;
int len_pmic_id_item = 0;
boot_uint32_t dtb_ver;
boot_uint32_t num_entries = 0;
boot_uint32_t i, j, k, n;
boot_uint32_t msm_data_count = 0;
boot_uint32_t board_data_count = 0;
boot_uint32_t pmic_data_count = 0;
fdt_parser_t parser;
// use default parser
if (!sparser)
sparser = libboot_qcdt_get_default_parser();
if (!sparser)
sparser = "qcom";
parser = libboot_qcdt_get_parser(sparser);
if (parser==FDT_PARSER_UNKNOWN) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_UNKNOWN_PARSER, sparser);
return 0;
}
root_offset = fdt_path_offset(dtb, "/");
if (root_offset < 0) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_PATH_NOT_FOUND, "/", fdt_strerror(root_offset));
return 0;
}
prop = fdt_getprop(dtb, root_offset, "model", &len);
if (prop && len > 0) {
model = (char *) libboot_alloc(sizeof(char) * len);
LIBBOOT_ASSERT(model);
libboot_internal_strlcpy(model, prop, len);
} else {
LOGI("model does not exist in device tree\n");
}
/* Find the pmic-id prop from DTB , if pmic-id is present then
* the DTB is version 3, otherwise find the board-id prop from DTB ,
* if board-id is present then the DTB is version 2 */
pmic_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,pmic-id", &len_pmic_id);
board_prop = (const char *)fdt_getprop(dtb, root_offset, "qcom,board-id", &len_board_id);
if (pmic_prop && (len_pmic_id > 0) && board_prop && (len_board_id > 0)) {
dtb_ver = DEV_TREE_VERSION_V3;
len_plat_id_item = PLAT_ID_SIZE;
len_board_id_item = BOARD_ID_SIZE;
len_pmic_id_item = PMIC_ID_SIZE;
} else if (board_prop && len_board_id > 0) {
dtb_ver = DEV_TREE_VERSION_V2;
len_plat_id_item = PLAT_ID_SIZE;
len_board_id_item = BOARD_ID_SIZE;
} else {
dtb_ver = DEV_TREE_VERSION_V1;
len_plat_id_item = DT_ENTRY_V1_SIZE;
len_board_id_item = BOARD_ID_SIZE;
if (parser==FDT_PARSER_QCOM_LGE) {
len_plat_id_item = 4 * sizeof(boot_uint32_t);
}
}
if (parser==FDT_PARSER_QCOM_OPPO) {
len_board_id_item = 4 * sizeof(boot_uint32_t);
}
if (dtb_ver == DEV_TREE_VERSION_V2 || dtb_ver == DEV_TREE_VERSION_V3) {
if (len_board_id % len_board_id_item) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_NOT_A_MULTIPLE, "qcom,board-id", len_board_id, len_board_id_item);
return 0;
}
}
if (dtb_ver == DEV_TREE_VERSION_V3) {
if ((len_pmic_id % len_pmic_id_item)) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_NOT_A_MULTIPLE, "qcom,pmic-id", len_pmic_id, len_pmic_id_item);
return 0;
}
}
/* Get the msm-id prop from DTB */
const char *msm_id_prop_name;
for (i=0; i<ARRAY_SIZE(msm_id_names); i++) {
plat_prop = (const char *)fdt_getprop(dtb, root_offset, msm_id_names[i], &len_plat_id);
if (plat_prop) {
msm_id_prop_name = msm_id_names[i];
break;
}
}
if (!plat_prop || len_plat_id <= 0) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_ID_ENTRY_NOT_FOUND);
return 0;
} else if (len_plat_id % len_plat_id_item) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_NOT_A_MULTIPLE, msm_id_prop_name, len_plat_id, len_plat_id_item);
return 0;
}
/*
* If DTB version is '1' look for <x y z> pair in the DTB
* x: platform_id
* y: variant_id
* z: SOC rev
*/
if (dtb_ver == DEV_TREE_VERSION_V1) {
cur_dt_entry = (dt_entry_local_t *)
libboot_alloc(sizeof(dt_entry_local_t));
if (!cur_dt_entry) {
return 0;
}
libboot_platform_memset(cur_dt_entry, 0, sizeof(dt_entry_local_t));
while (len_plat_id) {
cur_dt_entry->data.version = dtb_ver;
cur_dt_entry->data.platform_id = fdt32_to_cpu(((const dt_entry_v1_t *)plat_prop)->platform_id);
cur_dt_entry->data.variant_id = fdt32_to_cpu(((const dt_entry_v1_t *)plat_prop)->variant_id);
cur_dt_entry->data.soc_rev = fdt32_to_cpu(((const dt_entry_v1_t *)plat_prop)->soc_rev);
cur_dt_entry->data.board_hw_subtype =
fdt32_to_cpu(((const dt_entry_v1_t *)plat_prop)->variant_id) >> 0x18;
cur_dt_entry->data.pmic_rev[0] = libboot_qcdt_pmic_target(0);
cur_dt_entry->data.pmic_rev[1] = libboot_qcdt_pmic_target(1);
cur_dt_entry->data.pmic_rev[2] = libboot_qcdt_pmic_target(2);
cur_dt_entry->data.pmic_rev[3] = libboot_qcdt_pmic_target(3);
cur_dt_entry->dtb_data = dtb;
cur_dt_entry->dtb_size = dtb_size;
cur_dt_entry->parser = sparser;
if (parser==FDT_PARSER_QCOM_LGE) {
cur_dt_entry->data.u.lge.lge_rev = fdt32_to_cpu(*((boot_uint32_t *)(plat_prop + 3*sizeof(boot_uint32_t))));
}
if (parser==FDT_PARSER_QCOM_MOTOROLA) {
cur_dt_entry->data.u.motorola.version = 1;
cur_dt_entry->data.u.motorola.model[0] = 0;
if (model)
libboot_platform_strncpy(cur_dt_entry->data.u.motorola.model, model, sizeof(cur_dt_entry->data.u.motorola.model));
}
cb(cur_dt_entry, dtb_list, model);
plat_prop += len_plat_id_item;
len_plat_id -= len_plat_id_item;
}
libboot_free(cur_dt_entry);
}
/*
* If DTB Version is '3' then we have split DTB with board & msm data & pmic
* populated saperately in board-id & msm-id & pmic-id prop respectively.
* Extract the data & prepare a look up table
*/
else if (dtb_ver == DEV_TREE_VERSION_V2 || dtb_ver == DEV_TREE_VERSION_V3) {
if (len_board_id_item>0)
board_data_count = (len_board_id / len_board_id_item);
if (len_plat_id_item>0)
msm_data_count = (len_plat_id / len_plat_id_item);
/* If dtb version is v2.0, the pmic_data_count will be <= 0 */
if (len_pmic_id_item>0)
pmic_data_count = (len_pmic_id / len_pmic_id_item);
/* If we are using dtb v3.0, then we have split board, msm & pmic data in the DTB
* If we are using dtb v2.0, then we have split board & msmdata in the DTB
*/
board_data = (board_id_t *) libboot_alloc(sizeof(board_id_t) * board_data_count);
LIBBOOT_ASSERT(board_data);
platform_data = (plat_id_t *) libboot_alloc(sizeof(plat_id_t) * msm_data_count);
LIBBOOT_ASSERT(platform_data);
if (dtb_ver == DEV_TREE_VERSION_V3) {
pmic_data = (pmic_id_t *) libboot_alloc(sizeof(pmic_id_t) * pmic_data_count);
LIBBOOT_ASSERT(pmic_data);
}
i = 0;
/* Extract board data from DTB */
for (i = 0 ; i < board_data_count; i++) {
board_data[i].variant_id = fdt32_to_cpu(((board_id_t *)board_prop)->variant_id);
board_data[i].platform_subtype = fdt32_to_cpu(((board_id_t *)board_prop)->platform_subtype);
if (parser==FDT_PARSER_QCOM_OPPO) {
board_data[i].u.oppo.id0 = fdt32_to_cpu(((board_id_t *)board_prop)->u.oppo.id0);
board_data[i].u.oppo.id1 = fdt32_to_cpu(((board_id_t *)board_prop)->u.oppo.id1);
}
/* For V2/V3 version of DTBs we have platform version field as part
* of variant ID, in such case the subtype will be mentioned as 0x0
* As the qcom, board-id = <0xSSPMPmPH, 0x0>
* SS -- Subtype
* PM -- Platform major version
* Pm -- Platform minor version
* PH -- Platform hardware CDP/MTP
* In such case to make it compatible with LK algorithm move the subtype
* from variant_id to subtype field
*/
if (board_data[i].platform_subtype == 0)
board_data[i].platform_subtype =
fdt32_to_cpu(((board_id_t *)board_prop)->variant_id) >> 0x18;
len_board_id -= len_board_id_item;
board_prop += len_board_id_item;
}
/* Extract platform data from DTB */
for (i = 0 ; i < msm_data_count; i++) {
platform_data[i].platform_id = fdt32_to_cpu(((plat_id_t *)plat_prop)->platform_id);
platform_data[i].soc_rev = fdt32_to_cpu(((plat_id_t *)plat_prop)->soc_rev);
len_plat_id -= len_plat_id_item;
plat_prop += len_plat_id_item;
}
if (dtb_ver == DEV_TREE_VERSION_V3 && pmic_prop) {
/* Extract pmic data from DTB */
for (i = 0 ; i < pmic_data_count; i++) {
pmic_data[i].pmic_version[0]= fdt32_to_cpu(((pmic_id_t *)pmic_prop)->pmic_version[0]);
pmic_data[i].pmic_version[1]= fdt32_to_cpu(((pmic_id_t *)pmic_prop)->pmic_version[1]);
pmic_data[i].pmic_version[2]= fdt32_to_cpu(((pmic_id_t *)pmic_prop)->pmic_version[2]);
pmic_data[i].pmic_version[3]= fdt32_to_cpu(((pmic_id_t *)pmic_prop)->pmic_version[3]);
len_pmic_id -= len_pmic_id_item;
pmic_prop += len_pmic_id_item;
}
/* We need to merge board & platform data into dt entry structure */
num_entries = msm_data_count * board_data_count * pmic_data_count;
} else {
/* We need to merge board & platform data into dt entry structure */
num_entries = msm_data_count * board_data_count;
}
if ((((boot_uint64_t)msm_data_count * (boot_uint64_t)board_data_count * (boot_uint64_t)pmic_data_count) !=
msm_data_count * board_data_count * pmic_data_count) ||
(((boot_uint64_t)msm_data_count * (boot_uint64_t)board_data_count) != msm_data_count * board_data_count)) {
libboot_free(board_data);
libboot_free(platform_data);
if (pmic_data)
libboot_free(pmic_data);
if (model)
libboot_free(model);
return 0;
}
dt_entry_array = (dt_entry_local_t *) libboot_alloc(sizeof(dt_entry_local_t) * num_entries);
LIBBOOT_ASSERT(dt_entry_array);
/* If we have '<X>; <Y>; <Z>' as platform data & '<A>; <B>; <C>' as board data.
* Then dt entry should look like
* <X ,A >;<X, B>;<X, C>;
* <Y ,A >;<Y, B>;<Y, C>;
* <Z ,A >;<Z, B>;<Z, C>;
*/
i = 0;
k = 0;
n = 0;
for (i = 0; i < msm_data_count; i++) {
for (j = 0; j < board_data_count; j++) {
if (dtb_ver == DEV_TREE_VERSION_V3 && pmic_prop) {
for (n = 0; n < pmic_data_count; n++) {
dt_entry_array[k].data.version = dtb_ver;
dt_entry_array[k].data.platform_id = platform_data[i].platform_id;
dt_entry_array[k].data.soc_rev = platform_data[i].soc_rev;
dt_entry_array[k].data.variant_id = board_data[j].variant_id;
dt_entry_array[k].data.board_hw_subtype = board_data[j].platform_subtype;
dt_entry_array[k].data.pmic_rev[0]= pmic_data[n].pmic_version[0];
dt_entry_array[k].data.pmic_rev[1]= pmic_data[n].pmic_version[1];
dt_entry_array[k].data.pmic_rev[2]= pmic_data[n].pmic_version[2];
dt_entry_array[k].data.pmic_rev[3]= pmic_data[n].pmic_version[3];
dt_entry_array[k].dtb_data = dtb;
dt_entry_array[k].dtb_size = dtb_size;
dt_entry_array[k].parser = sparser;
if (parser==FDT_PARSER_QCOM_OPPO) {
dt_entry_array[k].data.u.oppo.id0 = board_data[j].u.oppo.id0;
dt_entry_array[k].data.u.oppo.id1 = board_data[j].u.oppo.id1;
}
if (parser==FDT_PARSER_QCOM_MOTOROLA) {
dt_entry_array[k].data.u.motorola.version = 1;
dt_entry_array[k].data.u.motorola.model[0] = 0;
if (model)
libboot_platform_strncpy(dt_entry_array[k].data.u.motorola.model, model, sizeof(dt_entry_array[k].data.u.motorola.model));
}
k++;
}
} else {
dt_entry_array[k].data.version = dtb_ver;
dt_entry_array[k].data.platform_id = platform_data[i].platform_id;
dt_entry_array[k].data.soc_rev = platform_data[i].soc_rev;
dt_entry_array[k].data.variant_id = board_data[j].variant_id;
dt_entry_array[k].data.board_hw_subtype = board_data[j].platform_subtype;
dt_entry_array[k].data.pmic_rev[0]= libboot_qcdt_pmic_target(0);
dt_entry_array[k].data.pmic_rev[1]= libboot_qcdt_pmic_target(1);
dt_entry_array[k].data.pmic_rev[2]= libboot_qcdt_pmic_target(2);
dt_entry_array[k].data.pmic_rev[3]= libboot_qcdt_pmic_target(3);
dt_entry_array[k].dtb_data = dtb;
dt_entry_array[k].dtb_size = dtb_size;
dt_entry_array[k].parser = sparser;
if (parser==FDT_PARSER_QCOM_OPPO) {
dt_entry_array[k].data.u.oppo.id0 = board_data[j].u.oppo.id0;
dt_entry_array[k].data.u.oppo.id1 = board_data[j].u.oppo.id1;
}
if (parser==FDT_PARSER_QCOM_MOTOROLA) {
dt_entry_array[k].data.u.motorola.version = 1;
dt_entry_array[k].data.u.motorola.model[0] = 0;
if (model)
libboot_platform_strncpy(dt_entry_array[k].data.u.motorola.model, model, sizeof(dt_entry_array[k].data.u.motorola.model));
}
k++;
}
}
}
for (i=0 ; i < num_entries; i++) {
cb(&(dt_entry_array[i]), dtb_list, model);
}
libboot_free(board_data);
libboot_free(platform_data);
if (pmic_data)
libboot_free(pmic_data);
libboot_free(dt_entry_array);
}
if (model)
libboot_free(model);
return 1;
}
static void generate_entries_add_cb(dt_entry_local_t *dt_entry, dt_entry_node_t *dt_list, const char *model)
{
LOGV("Found an appended flattened device tree (%s - %u %u %u 0x%x)\n",
*model ? model : "unknown",
dt_entry->data.platform_id, dt_entry->data.variant_id, dt_entry->data.board_hw_subtype, dt_entry->data.soc_rev);
if (devtree_entry_add_if_excact_match(dt_entry, dt_list)) {
LOGV("Device tree exact match the board: <%u %u %u 0x%x> == <%u %u %u 0x%x>\n",
dt_entry->data.platform_id,
dt_entry->data.variant_id,
dt_entry->data.soc_rev,
dt_entry->data.board_hw_subtype,
libboot_qcdt_platform_id(),
libboot_qcdt_hardware_id(),
libboot_qcdt_hardware_subtype(),
libboot_qcdt_soc_version());
} else {
LOGV("Device tree's msm_id doesn't match the board: <%u %u %u 0x%x> != <%u %u %u 0x%x>\n",
dt_entry->data.platform_id,
dt_entry->data.variant_id,
dt_entry->data.soc_rev,
dt_entry->data.board_hw_subtype,
libboot_qcdt_platform_id(),
libboot_qcdt_hardware_id(),
libboot_qcdt_hardware_subtype(),
libboot_qcdt_soc_version());
}
}
static int libboot_qcdt_add_compatible_entries(void *dtb, boot_uint32_t dtb_size, dt_entry_node_t *dtb_list, const char *parser)
{
return libboot_qcdt_generate_entries(dtb, dtb_size, dtb_list, generate_entries_add_cb, parser);
}
/*
* Will relocate the DTB to the tags addr if the device tree is found and return
* its address
*
* Arguments: kernel - Start address of the kernel loaded in RAM
* tags - Start address of the tags loaded in RAM
* kernel_size - Size of the kernel in bytes
*
* Return Value: DTB address : If appended device tree is found
* 'NULL' : Otherwise
*/
void *libboot_qcdt_appended(void *fdt, boot_uintn_t fdt_size, const char *parser)
{
void *fdt_end = fdt + fdt_size;
void *dtb = NULL;
void *bestmatch_tag = NULL;
dt_entry_local_t *best_match_dt_entry = NULL;
dt_entry_node_t *dt_entry_queue = NULL;
/* Initialize the dtb entry node*/
dt_entry_queue = dt_entry_list_create();
if (!dt_entry_queue) {
return NULL;
}
dtb = fdt;
while (((boot_uintn_t)dtb + sizeof(struct fdt_header)) < (boot_uintn_t)fdt_end) {
struct fdt_header dtb_hdr;
boot_uint32_t dtb_size;
/* the DTB could be unaligned, so extract the header,
* and operate on it separately */
libboot_platform_memmove(&dtb_hdr, dtb, sizeof(struct fdt_header));
if (fdt_check_header((const void *)&dtb_hdr) != 0 ||
((boot_uintn_t)dtb + (boot_uintn_t)fdt_totalsize((const void *)&dtb_hdr) < (boot_uintn_t)dtb) ||
((boot_uintn_t)dtb + (boot_uintn_t)fdt_totalsize((const void *)&dtb_hdr) > (boot_uintn_t)fdt_end))
break;
dtb_size = fdt_totalsize(&dtb_hdr);
libboot_qcdt_add_compatible_entries(dtb, dtb_size, dt_entry_queue, parser);
/* goto the next device tree if any */
dtb += dtb_size;
}
best_match_dt_entry = devtree_get_best_entry(dt_entry_queue);
if (best_match_dt_entry) {
bestmatch_tag = best_match_dt_entry->dtb_data;
LOGI("Best match DTB tags %u/%08x/0x%08x/%x/%x/%x/%x/%x/%p/%x\n",
best_match_dt_entry->data.platform_id, best_match_dt_entry->data.variant_id,
best_match_dt_entry->data.board_hw_subtype, best_match_dt_entry->data.soc_rev,
best_match_dt_entry->data.pmic_rev[0], best_match_dt_entry->data.pmic_rev[1],
best_match_dt_entry->data.pmic_rev[2], best_match_dt_entry->data.pmic_rev[3],
best_match_dt_entry->dtb_data, best_match_dt_entry->dtb_size);
LOGI("Using pmic info 0x%0x/0x%x/0x%x/0x%0x for device 0x%0x/0x%x/0x%x/0x%0x\n",
best_match_dt_entry->data.pmic_rev[0], best_match_dt_entry->data.pmic_rev[1],
best_match_dt_entry->data.pmic_rev[2], best_match_dt_entry->data.pmic_rev[3],
libboot_qcdt_pmic_target(0), libboot_qcdt_pmic_target(1),
libboot_qcdt_pmic_target(2), libboot_qcdt_pmic_target(3));
}
/* libboot_free queue's memory */
dt_entry_list_free(dt_entry_queue);
if (bestmatch_tag) {
return bestmatch_tag;
}
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_NO_MATCH,
libboot_qcdt_platform_id(),
libboot_qcdt_hardware_id(),
libboot_qcdt_soc_version(),
libboot_qcdt_pmic_target(0), libboot_qcdt_pmic_target(1),
libboot_qcdt_pmic_target(2), libboot_qcdt_pmic_target(3));
return NULL;
}
/* Returns 0 if the device tree is valid. */
int libboot_qcdt_validate(dt_table_t *table, boot_uint32_t *dt_hdr_size)
{
int dt_entry_size;
boot_uint64_t hdr_size;
boot_uint32_t qcdt_version;
/* Validate the device tree table header */
if (table->magic != DEV_TREE_MAGIC) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_INVALID_MAGIC);
return -1;
}
qcdt_version = table->version & 0xff;
if (qcdt_version == DEV_TREE_VERSION_V1) {
dt_entry_size = sizeof(dt_entry_v1_t);
} else if (qcdt_version == DEV_TREE_VERSION_V2) {
dt_entry_size = sizeof(dt_entry_v2_t);
} else if (qcdt_version == DEV_TREE_VERSION_V3) {
dt_entry_size = sizeof(dt_entry_t);
} else {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_UNSUPPORTED_VERSION, table->version);
return -1;
}
hdr_size = (boot_uint64_t)table->num_entries * dt_entry_size + DEV_TREE_HEADER_SIZE;
if (hdr_size > UINT_MAX) {
libboot_format_error(LIBBOOT_ERROR_GROUP_QCDT, LIBBOOT_ERROR_QCDT_INVALID_HEADER_SIZE);
return -1;
} else
*dt_hdr_size = hdr_size & UINT_MAX;
return 0;
}
static int devtree_entry_add_if_excact_match(dt_entry_local_t *cur_dt_entry, dt_entry_node_t *dt_list)
{
boot_uint32_t cur_dt_hlos_ddr;
boot_uint32_t cur_dt_hw_platform;
boot_uint32_t cur_dt_hw_subtype;
boot_uint32_t cur_dt_msm_id;
dt_entry_node_t *dt_node_tmp = NULL;
/* Platform-id
* bit no |31 24|23 16|15 0|
* |reserved|foundry-id|msm-id|
*/
cur_dt_msm_id = (cur_dt_entry->data.platform_id & 0x0000ffff);
cur_dt_hw_platform = (cur_dt_entry->data.variant_id & 0x000000ff);
cur_dt_hw_subtype = (cur_dt_entry->data.board_hw_subtype & 0xff);
/* Determine the bits 10:8 to check the DT with the DDR Size */
cur_dt_hlos_ddr = (cur_dt_entry->data.board_hw_subtype & 0x700);
/* 1. must match the msm_id, platform_hw_id, platform_subtype and DDR size
* soc, board major/minor, pmic major/minor must less than board info
* 2. find the matched DTB then return 1
* 3. otherwise return 0
*/
if ((cur_dt_msm_id == (libboot_qcdt_platform_id() & 0x0000ffff)) &&
(cur_dt_hw_platform == libboot_qcdt_hardware_id()) &&
(cur_dt_hw_subtype == libboot_qcdt_hardware_subtype()) &&
(cur_dt_hlos_ddr == (libboot_qcdt_get_hlos_subtype() & 0x700)) &&
(cur_dt_entry->data.soc_rev <= libboot_qcdt_soc_version()) &&
((cur_dt_entry->data.variant_id & 0x00ffff00) <= (libboot_qcdt_target_id() & 0x00ffff00)) &&
((cur_dt_entry->data.pmic_rev[0] & 0x00ffff00) <= (libboot_qcdt_pmic_target(0) & 0x00ffff00)) &&
((cur_dt_entry->data.pmic_rev[1] & 0x00ffff00) <= (libboot_qcdt_pmic_target(1) & 0x00ffff00)) &&
((cur_dt_entry->data.pmic_rev[2] & 0x00ffff00) <= (libboot_qcdt_pmic_target(2) & 0x00ffff00)) &&
((cur_dt_entry->data.pmic_rev[3] & 0x00ffff00) <= (libboot_qcdt_pmic_target(3) & 0x00ffff00))) {
dt_node_tmp = dt_entry_list_alloc_node();
libboot_platform_memmove((char *)dt_node_tmp->dt_entry_m,(char *)cur_dt_entry, sizeof(dt_entry_local_t));
if (!libboot_platform_strcmp(cur_dt_entry->parser, "qcom_oppo")) {
if (cur_dt_entry->data.u.oppo.id0!=libboot_qcdt_get_oppo_id0()) {
goto incompatible_entry;
}
if (cur_dt_entry->data.u.oppo.id1!=libboot_qcdt_get_oppo_id1()) {
goto incompatible_entry;
}
}
if (!libboot_platform_strcmp(cur_dt_entry->parser, "qcom_lge")) {
if (cur_dt_entry->data.u.lge.lge_rev!=libboot_qcdt_get_lge_rev()) {
goto incompatible_entry;
}
}
if (!libboot_platform_strcmp(cur_dt_entry->parser, "qcom_motorola") && cur_dt_entry->data.u.motorola.version) {
if (cur_dt_entry->data.u.motorola.model[0]) {
if (libboot_platform_strcmp(cur_dt_entry->data.u.motorola.model, libboot_qcdt_get_motorola_model()))
goto incompatible_entry;
}
}
LOGV("Add DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%p/%x\n",
dt_node_tmp->dt_entry_m->data.platform_id, dt_node_tmp->dt_entry_m->data.variant_id,
dt_node_tmp->dt_entry_m->data.board_hw_subtype, dt_node_tmp->dt_entry_m->data.soc_rev,
dt_node_tmp->dt_entry_m->data.pmic_rev[0], dt_node_tmp->dt_entry_m->data.pmic_rev[1],
dt_node_tmp->dt_entry_m->data.pmic_rev[2], dt_node_tmp->dt_entry_m->data.pmic_rev[3],
dt_node_tmp->dt_entry_m->dtb_data, dt_node_tmp->dt_entry_m->dtb_size);
dt_entry_list_insert(dt_list, dt_node_tmp);
return 1;
}
incompatible_entry:
return 0;
}
static int devtree_delete_incompatible_entries(dt_entry_node_t *dt_list, boot_uint32_t dtb_info)
{
dt_entry_node_t *dt_node_tmp1 = NULL;
dt_entry_node_t *dt_node_tmp2 = NULL;
boot_uint32_t current_info = 0;
boot_uint32_t board_info = 0;
boot_uint32_t best_info = 0;
boot_uint32_t current_pmic_model[4] = {0, 0, 0, 0};
boot_uint32_t board_pmic_model[4] = {0, 0, 0, 0};
boot_uint32_t best_pmic_model[4] = {0, 0, 0, 0};
boot_uint32_t delete_current_dt = 0;
boot_uint32_t i;
/* start to select the exact entry
* default to exact match 0, if find current DTB entry info is the same as board info,
* then exact match board info.
*/
libboot_list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_entry_node_t, node) {
if (!dt_node_tmp1) {
LOGV("Current node is the end\n");
break;
}
switch (dtb_info) {
case DTB_FOUNDRY:
current_info = ((dt_node_tmp1->dt_entry_m->data.platform_id) & 0x00ff0000);
board_info = libboot_qcdt_foundry_id() << 16;
break;
case DTB_PMIC_MODEL:
for (i = 0; i < 4; i++) {
current_pmic_model[i] = (dt_node_tmp1->dt_entry_m->data.pmic_rev[i] & 0xff);
board_pmic_model[i] = (libboot_qcdt_pmic_target(i) & 0xff);
}
break;
case DTB_PANEL_TYPE:
current_info = ((dt_node_tmp1->dt_entry_m->data.board_hw_subtype) & 0x1800);
board_info = (libboot_qcdt_get_hlos_subtype() & 0x1800);
break;
case DTB_BOOT_DEVICE:
current_info = ((dt_node_tmp1->dt_entry_m->data.board_hw_subtype) & 0xf0000);
board_info = (libboot_qcdt_get_hlos_subtype() & 0xf0000);
break;
default:
LOGE("ERROR: Unsupported version (%d) in dt node check \n",
dtb_info);
return 0;
}
if (dtb_info == DTB_PMIC_MODEL) {
if ((current_pmic_model[0] == board_pmic_model[0]) &&
(current_pmic_model[1] == board_pmic_model[1]) &&
(current_pmic_model[2] == board_pmic_model[2]) &&
(current_pmic_model[3] == board_pmic_model[3])) {
for (i = 0; i < 4; i++) {
best_pmic_model[i] = current_pmic_model[i];
}
break;
}
} else {
if (current_info == board_info) {
best_info = current_info;
break;
}
}
}
libboot_list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_entry_node_t, node) {
if (!dt_node_tmp1) {
LOGV("Current node is the end\n");
break;
}
switch (dtb_info) {
case DTB_FOUNDRY:
current_info = ((dt_node_tmp1->dt_entry_m->data.platform_id) & 0x00ff0000);
break;
case DTB_PMIC_MODEL:
for (i = 0; i < 4; i++) {
current_pmic_model[i] = (dt_node_tmp1->dt_entry_m->data.pmic_rev[i] & 0xff);
}
break;
case DTB_PANEL_TYPE:
current_info = ((dt_node_tmp1->dt_entry_m->data.board_hw_subtype) & 0x1800);
break;
case DTB_BOOT_DEVICE:
current_info = ((dt_node_tmp1->dt_entry_m->data.board_hw_subtype) & 0xf0000);
break;
default:
LOGE("ERROR: Unsupported version (%d) in dt node check \n",
dtb_info);
return 0;
}
if (dtb_info == DTB_PMIC_MODEL) {
if ((current_pmic_model[0] != best_pmic_model[0]) ||
(current_pmic_model[1] != best_pmic_model[1]) ||
(current_pmic_model[2] != best_pmic_model[2]) ||
(current_pmic_model[3] != best_pmic_model[3])) {
delete_current_dt = 1;
}
} else {
if (current_info != best_info) {
delete_current_dt = 1;
}
}
if (delete_current_dt) {
LOGV("Delete don't fit DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%p/%x\n",
dt_node_tmp1->dt_entry_m->data.platform_id, dt_node_tmp1->dt_entry_m->data.variant_id,
dt_node_tmp1->dt_entry_m->data.board_hw_subtype, dt_node_tmp1->dt_entry_m->data.soc_rev,
dt_node_tmp1->dt_entry_m->data.pmic_rev[0], dt_node_tmp1->dt_entry_m->data.pmic_rev[1],
dt_node_tmp1->dt_entry_m->data.pmic_rev[2], dt_node_tmp1->dt_entry_m->data.pmic_rev[3],
dt_node_tmp1->dt_entry_m->dtb_data, dt_node_tmp1->dt_entry_m->dtb_size);
dt_node_tmp2 = (dt_entry_node_t *) dt_node_tmp1->node.prev;
dt_entry_list_delete(dt_node_tmp1);
dt_node_tmp1 = dt_node_tmp2;
delete_current_dt = 0;
}
}
return 1;
}
static int devtree_delete_incompatible_entries2(dt_entry_node_t *dt_list, boot_uint32_t dtb_info)
{
dt_entry_node_t *dt_node_tmp1 = NULL;
dt_entry_node_t *dt_node_tmp2 = NULL;
boot_uint32_t current_info = 0;
boot_uint32_t board_info = 0;
boot_uint32_t best_info = 0;
/* start to select the best entry*/
libboot_list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_entry_node_t, node) {
if (!dt_node_tmp1) {
LOGV("Current node is the end\n");
break;
}
switch (dtb_info) {
case DTB_SOC:
current_info = dt_node_tmp1->dt_entry_m->data.soc_rev;
board_info = libboot_qcdt_soc_version();
break;
case DTB_MAJOR_MINOR:
current_info = ((dt_node_tmp1->dt_entry_m->data.variant_id) & 0x00ffff00);
board_info = (libboot_qcdt_target_id() & 0x00ffff00);
break;
case DTB_PMIC0:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[0]) & 0x00ffff00);
board_info = (libboot_qcdt_pmic_target(0) & 0x00ffff00);
break;
case DTB_PMIC1:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[1]) & 0x00ffff00);
board_info = (libboot_qcdt_pmic_target(1) & 0x00ffff00);
break;
case DTB_PMIC2:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[2]) & 0x00ffff00);
board_info = (libboot_qcdt_pmic_target(2) & 0x00ffff00);
break;
case DTB_PMIC3:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[3]) & 0x00ffff00);
board_info = (libboot_qcdt_pmic_target(3) & 0x00ffff00);
break;
default:
LOGE("ERROR: Unsupported version (%d) in dt node check \n",
dtb_info);
return 0;
}
if (current_info == board_info) {
best_info = current_info;
break;
}
if ((current_info < board_info) && (current_info > best_info)) {
best_info = current_info;
}
if (current_info < best_info) {
LOGV("Delete don't fit DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%p/%x\n",
dt_node_tmp1->dt_entry_m->data.platform_id, dt_node_tmp1->dt_entry_m->data.variant_id,
dt_node_tmp1->dt_entry_m->data.board_hw_subtype, dt_node_tmp1->dt_entry_m->data.soc_rev,
dt_node_tmp1->dt_entry_m->data.pmic_rev[0], dt_node_tmp1->dt_entry_m->data.pmic_rev[1],
dt_node_tmp1->dt_entry_m->data.pmic_rev[2], dt_node_tmp1->dt_entry_m->data.pmic_rev[3],
dt_node_tmp1->dt_entry_m->dtb_data, dt_node_tmp1->dt_entry_m->dtb_size);
dt_node_tmp2 = (dt_entry_node_t *) dt_node_tmp1->node.prev;
dt_entry_list_delete(dt_node_tmp1);
dt_node_tmp1 = dt_node_tmp2;
}
}
libboot_list_for_every_entry(&dt_list->node, dt_node_tmp1, dt_entry_node_t, node) {
if (!dt_node_tmp1) {
LOGV("Current node is the end\n");
break;
}
switch (dtb_info) {
case DTB_SOC:
current_info = dt_node_tmp1->dt_entry_m->data.soc_rev;
break;
case DTB_MAJOR_MINOR:
current_info = ((dt_node_tmp1->dt_entry_m->data.variant_id) & 0x00ffff00);
break;
case DTB_PMIC0:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[0]) & 0x00ffff00);
break;
case DTB_PMIC1:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[1]) & 0x00ffff00);
break;
case DTB_PMIC2:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[2]) & 0x00ffff00);
break;
case DTB_PMIC3:
current_info = ((dt_node_tmp1->dt_entry_m->data.pmic_rev[3]) & 0x00ffff00);
break;
default:
LOGE("ERROR: Unsupported version (%d) in dt node check \n",
dtb_info);
return 0;
}
if (current_info != best_info) {
LOGV("Delete don't fit DTB entry %u/%08x/0x%08x/%x/%x/%x/%x/%x/%p/%x\n",
dt_node_tmp1->dt_entry_m->data.platform_id, dt_node_tmp1->dt_entry_m->data.variant_id,
dt_node_tmp1->dt_entry_m->data.board_hw_subtype, dt_node_tmp1->dt_entry_m->data.soc_rev,
dt_node_tmp1->dt_entry_m->data.pmic_rev[0], dt_node_tmp1->dt_entry_m->data.pmic_rev[1],
dt_node_tmp1->dt_entry_m->data.pmic_rev[2], dt_node_tmp1->dt_entry_m->data.pmic_rev[3],
dt_node_tmp1->dt_entry_m->dtb_data, dt_node_tmp1->dt_entry_m->dtb_size);
dt_node_tmp2 = (dt_entry_node_t *) dt_node_tmp1->node.prev;
dt_entry_list_delete(dt_node_tmp1);
dt_node_tmp1 = dt_node_tmp2;
}
}
return 1;
}
static dt_entry_local_t *devtree_get_best_entry(dt_entry_node_t *dt_list)
{
dt_entry_node_t *dt_node_tmp1 = NULL;
/* check Foundry id
* the foundry id must exact match board founddry id, this is compatibility check,
* if couldn't find the exact match from DTB, will exact match 0x0.
*/
if (!devtree_delete_incompatible_entries(dt_list, DTB_FOUNDRY))
return NULL;
/* check PMIC model
* the PMIC model must exact match board PMIC model, this is compatibility check,
* if couldn't find the exact match from DTB, will exact match 0x0.
*/
if (!devtree_delete_incompatible_entries(dt_list, DTB_PMIC_MODEL))
return NULL;
/* check panel type
* the panel type must exact match board panel type, this is compatibility check,
* if couldn't find the exact match from DTB, will exact match 0x0.
*/
if (!devtree_delete_incompatible_entries(dt_list, DTB_PANEL_TYPE))
return NULL;
/* check boot device subtype
* the boot device subtype must exact match board boot device subtype, this is compatibility check,
* if couldn't find the exact match from DTB, will exact match 0x0.
*/
if (!devtree_delete_incompatible_entries(dt_list, DTB_BOOT_DEVICE))
return NULL;
/* check soc version