summaryrefslogtreecommitdiff
path: root/src/Kconfig
blob: 436964c41574f66721a009b0a9675bece4969d0e (plain)
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
##
## This file is part of the coreboot project.
##
## Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
## Copyright (C) 2009-2010 coresystems GmbH
##
## This program is free software; you can redistribute it and/or modify
## it under the terms of the GNU General Public License as published by
## the Free Software Foundation; version 2 of the License.
##
## This program is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##

mainmenu "coreboot configuration"

menu "General setup"

config LOCALVERSION
	string "Local version string"
	help
	  Append an extra string to the end of the coreboot version.

	  This can be useful if, for instance, you want to append the
	  respective board's hostname or some other identifying string to
	  the coreboot version number, so that you can easily distinguish
	  boot logs of different boards from each other.

config CBFS_PREFIX
	string "CBFS prefix to use"
	default "fallback"
	help
	  Select the prefix to all files put into the image. It's "fallback"
	  by default, "normal" is a common alternative.

choice
	prompt "Compiler to use"
	default COMPILER_GCC
	help
	  This option allows you to select the compiler used for building
	  coreboot.
	  You must build the coreboot crosscompiler for the board that you
	  have selected.

	  To build all the GCC crosscompilers (takes a LONG time), run:
	    make crossgcc

	  For help on individual architectures, run the command:
	    make help_toolchain

config COMPILER_GCC
	bool "GCC"
	help
	  Use the GNU Compiler Collection (GCC) to build coreboot.

	  For details see http://gcc.gnu.org.

config COMPILER_LLVM_CLANG
	bool "LLVM/clang (TESTING ONLY - Not currently working)"
	help
	  Use LLVM/clang to build coreboot.  To use this, you must build the
	  coreboot version of the clang compiler.  Run the command
	    make clang
	  Note that this option is not currently working correctly and should
	  really only be selected if you're trying to work on getting clang
	  operational.

	  For details see http://clang.llvm.org.

endchoice

config ANY_TOOLCHAIN
	bool "Allow building with any toolchain"
	default n
	depends on COMPILER_GCC
	help
	  Many toolchains break when building coreboot since it uses quite
	  unusual linker features. Unless developers explicitely request it,
	  we'll have to assume that they use their distro compiler by mistake.
	  Make sure that using patched compilers is a conscious decision.

config CCACHE
	bool "Use ccache to speed up (re)compilation"
	default n
	help
	  Enables the use of ccache for faster builds.

	  Requires the ccache utility in your system $PATH.

	  For details see https://ccache.samba.org.

config FMD_GENPARSER
	bool "Generate flashmap descriptor parser using flex and bison"
	default n
	help
	  Enable this option if you are working on the flashmap descriptor
	  parser and made changes to fmd_scanner.l or fmd_parser.y.

	  Otherwise, say N to use the provided pregenerated scanner/parser.

config SCONFIG_GENPARSER
	bool "Generate SCONFIG parser using flex and bison"
	default n
	help
	  Enable this option if you are working on the sconfig device tree
	  parser and made changes to sconfig.l or sconfig.y.

	  Otherwise, say N to use the provided pregenerated scanner/parser.

config USE_OPTION_TABLE
	bool "Use CMOS for configuration values"
	default n
	depends on HAVE_OPTION_TABLE
	help
	  Enable this option if coreboot shall read options from the "CMOS"
	  NVRAM instead of using hard-coded values.

config STATIC_OPTION_TABLE
	bool "Load default configuration values into CMOS on each boot"
	default n
	depends on USE_OPTION_TABLE
	help
	  Enable this option to reset "CMOS" NVRAM values to default on
	  every boot.  Use this if you want the NVRAM configuration to
	  never be modified from its default values.

config UNCOMPRESSED_RAMSTAGE
	bool
	default n

config COMPRESS_RAMSTAGE
	bool "Compress ramstage with LZMA"
	default y if !UNCOMPRESSED_RAMSTAGE
	default n
	help
	  Compress ramstage to save memory in the flash image. Note
	  that decompression might slow down booting if the boot flash
	  is connected through a slow link (i.e. SPI).

config COMPRESS_PRERAM_STAGES
	bool "Compress romstage and verstage with LZ4"
	depends on !ARCH_X86
	default y
	help
	  Compress romstage and (if it exists) verstage with LZ4 to save flash
	  space and speed up boot, since the time for reading the image from SPI
	  (and in the vboot case verifying it) is usually much greater than the
	  time spent decompressing. Doesn't work for XIP stages (assume all
	  ARCH_X86 for now) for obvious reasons.

config INCLUDE_CONFIG_FILE
	bool "Include the coreboot .config file into the ROM image"
	default y
	help
	  Include the .config file that was used to compile coreboot
	  in the (CBFS) ROM image. This is useful if you want to know which
	  options were used to build a specific coreboot.rom image.

	  Saying Y here will increase the image size by 2-3KB.

	  You can use the following command to easily list the options:

	    grep -a CONFIG_ coreboot.rom

	  Alternatively, you can also use cbfstool to print the image
	  contents (including the raw 'config' item we're looking for).

	  Example:

	    $ cbfstool coreboot.rom print
	    coreboot.rom: 4096 kB, bootblocksize 1008, romsize 4194304,
	                                               offset 0x0
	    Alignment: 64 bytes

	    Name                           Offset     Type         Size
	    cmos_layout.bin                0x0        cmos layout  1159
	    fallback/romstage              0x4c0      stage        339756
	    fallback/ramstage              0x53440    stage        186664
	    fallback/payload               0x80dc0    payload      51526
	    config                         0x8d740    raw          3324
	    (empty)                        0x8e480    null         3610440

config NO_XIP_EARLY_STAGES
	bool
	default n if ARCH_X86
	default y
	help
	  Identify if early stages are eXecute-In-Place(XIP).

config EARLY_CBMEM_INIT
	def_bool !LATE_CBMEM_INIT

config EARLY_CBMEM_LIST
	bool
	default n
	help
	  Enable display of CBMEM during romstage and postcar.

config COLLECT_TIMESTAMPS
	bool "Create a table of timestamps collected during boot"
	default n
	help
	  Make coreboot create a table of timer-ID/timer-value pairs to
	  allow measuring time spent at different phases of the boot process.

config USE_BLOBS
	bool "Allow use of binary-only repository"
	default n
	help
	  This draws in the blobs repository, which contains binary files that
	  might be required for some chipsets or boards.
	  This flag ensures that a "Free" option remains available for users.

config COVERAGE
	bool "Code coverage support"
	depends on COMPILER_GCC
	default n
	help
	  Add code coverage support for coreboot. This will store code
	  coverage information in CBMEM for extraction from user space.
	  If unsure, say N.

config RELOCATABLE_MODULES
	bool
	default n
	help
	 If RELOCATABLE_MODULES is selected then support is enabled for
	 building relocatable modules in the RAM stage. Those modules can be
	 loaded anywhere and all the relocations are handled automatically.

config RELOCATABLE_RAMSTAGE
	depends on EARLY_CBMEM_INIT
	bool "Build the ramstage to be relocatable in 32-bit address space."
	default n
	select RELOCATABLE_MODULES
	help
	 The reloctable ramstage support allows for the ramstage to be built
	 as a relocatable module. The stage loader can identify a place
	 out of the OS way so that copying memory is unnecessary during an S3
	 wake. When selecting this option the romstage is responsible for
	 determing a stack location to use for loading the ramstage.

config CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM
	depends on RELOCATABLE_RAMSTAGE
	bool "Cache the relocated ramstage outside of cbmem."
	default n
	help
	 The relocated ramstage is saved in an area specified by the
	 by the board and/or chipset.

config NO_STAGE_CACHE
	bool
	default n
	help
	 Do not save any component in stage cache for resume path. On resume,
	 all components would be read back from CBFS again.

# TODO: This doesn't belong here, move to src/arch/x86/Kconfig
choice
	prompt "Bootblock behaviour"
	default BOOTBLOCK_SIMPLE

config BOOTBLOCK_SIMPLE
	bool "Always load fallback"

config BOOTBLOCK_NORMAL
	bool "Switch to normal if CMOS says so"

endchoice

# To be selected by arch, SoC or mainboard if it does not want use the normal
# src/lib/bootblock.c#main() C entry point.
config BOOTBLOCK_CUSTOM
	bool
	default n

config BOOTBLOCK_SOURCE
	string
	default "bootblock_simple.c" if BOOTBLOCK_SIMPLE
	default "bootblock_normal.c" if BOOTBLOCK_NORMAL

# To be selected by arch or platform if a C environment is available during the
# bootblock. Normally this signifies availability of RW memory (e.g. SRAM).
config C_ENVIRONMENT_BOOTBLOCK
	bool
	default n

config SKIP_MAX_REBOOT_CNT_CLEAR
	bool "Do not clear reboot count after successful boot"
	default n
	depends on BOOTBLOCK_NORMAL
	help
	  Do not clear the reboot count immediately after successful boot.
	  Set to allow the payload to control normal/fallback image recovery.
	  Note that it is the responsibility of the payload to reset the
	  normal boot bit to 1 after each successsful boot.

config UPDATE_IMAGE
	bool "Update existing coreboot.rom image"
	default n
	help
	  If this option is enabled, no new coreboot.rom file
	  is created. Instead it is expected that there already
	  is a suitable file for further processing.
	  The bootblock will not be modified.

	  If unsure, select 'N'

config GENERIC_GPIO_LIB
	bool
	default n
	help
	  If enabled, compile the generic GPIO library. A "generic" GPIO
	  implies configurability usually found on SoCs, particularly the
	  ability to control internal pull resistors.

config GENERIC_SPD_BIN
	bool
	default n
	help
	  If enabled, add support for adding spd.hex files in cbfs as spd.bin
	  and locating it runtime to load SPD. Additionally provide provision to
	  fetch SPD over SMBus.

config DIMM_MAX
	int
	default 4
	depends on GENERIC_SPD_BIN
	help
	  Total number of memory DIMM slots available on motherboard.
	  It is multiplication of number of channel to number of DIMMs per
	  channel

config DIMM_SPD_SIZE
	int
	default 256
	depends on GENERIC_SPD_BIN
	help
	  Total SPD size that will be used for DIMM.
	  Ex: DDR3 256, DDR4 512.

config BOARD_ID_AUTO
	bool
	default n
	help
	  Mainboards that can read a board ID from the hardware straps
	  (ie. GPIO) select this configuration option.

config BOARD_ID_MANUAL
	bool
	default n
	depends on !BOARD_ID_AUTO
	help
	  If you want to maintain a board ID, but the hardware does not
	  have straps to automatically determine the ID, you can say Y
	  here and add a file named 'board_id' to CBFS. If you don't know
	  what this is about, say N.

config BOARD_ID_STRING
	string "Board ID"
	default "(none)"
	depends on BOARD_ID_MANUAL
	help
	  This string is placed in the 'board_id' CBFS file for indicating
	  board type.

config RAM_CODE_SUPPORT
	bool
	default n
	help
	  If enabled, coreboot discovers RAM configuration (value obtained by
	  reading board straps) and stores it in coreboot table.

config BOOTSPLASH_IMAGE
	bool "Add a bootsplash image"
	help
	  Select this option if you have a bootsplash image that you would
	  like to add to your ROM.

	  This will only add the image to the ROM. To actually run it check
	  options under 'Display' section.

config BOOTSPLASH_FILE
	string "Bootsplash path and filename"
	depends on BOOTSPLASH_IMAGE
	default "bootsplash.jpg"
	help
	  The path and filename of the file to use as graphical bootsplash
	  screen. The file format has to be jpg.

endmenu

menu "Mainboard"

source "src/mainboard/Kconfig"

config DEVICETREE
	string
	default "devicetree.cb"
	help
	  This symbol allows mainboards to select a different file under their
	  mainboard directory for the devicetree.cb file.  This allows the board
	  variants that need different devicetrees to be in the same directory.

	  Examples: "devicetree.variant.cb"
	            "variant/devicetree.cb"

# defaults for CBFS_SIZE are set at the end of the file.
config CBFS_SIZE
	hex "Size of CBFS filesystem in ROM"
	help
	  This is the part of the ROM actually managed by CBFS, located at the
	  end of the ROM (passed through cbfstool -o) on x86 and at at the start
	  of the ROM (passed through cbfstool -s) everywhere else. It defaults
	  to span the whole ROM on all but Intel systems that use an Intel Firmware
	  Descriptor.  It can be overridden to make coreboot live alongside other
	  components like ChromeOS's vboot/FMAP or Intel's IFD / ME / TXE
	  binaries.

config FMDFILE
	string "fmap description file in fmd format"
	default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if CHROMEOS
	default ""
	help
	  The build system creates a default FMAP from ROM_SIZE and CBFS_SIZE,
	  but in some cases more complex setups are required.
	  When an fmd is specified, it overrides the default format.

config MAINBOARD_HAS_TPM2
	bool
	default n
	help
	  There is a TPM device installed on the mainboard, and it is
	  compliant with version 2 TCG TPM specification. Could be connected
	  over LPC, SPI or I2C.

endmenu

# load site-local kconfig to allow user specific defaults and overrides
source "site-local/Kconfig"

config SYSTEM_TYPE_LAPTOP
	default n
	bool

config CBFS_AUTOGEN_ATTRIBUTES
	default n
	bool
	help
	  If this option is selected, every file in cbfs which has a constraint
	  regarding position or alignment will get an additional file attribute
	  which describes this constraint.

menu "Chipset"

comment "SoC"
source "src/soc/*/*/Kconfig"
comment "CPU"
source "src/cpu/Kconfig"
comment "Northbridge"
source "src/northbridge/*/*/Kconfig"
comment "Southbridge"
source "src/southbridge/*/*/Kconfig"
comment "Super I/O"
source "src/superio/*/*/Kconfig"
comment "Embedded Controllers"
source "src/ec/acpi/Kconfig"
source "src/ec/*/*/Kconfig"
# FIXME move to vendorcode
source "src/drivers/intel/fsp1_0/Kconfig"

source "src/southbridge/intel/common/firmware/Kconfig"
source "src/vboot/Kconfig"
source "src/vendorcode/*/Kconfig"

source "src/arch/*/Kconfig"

endmenu

source "src/device/Kconfig"

menu "Generic Drivers"
source "src/drivers/*/Kconfig"
source "src/drivers/*/*/Kconfig"
endmenu

source "src/acpi/Kconfig"

# This option is for the current boards/chipsets where SPI flash
# is not the boot device. Currently nearly all boards/chipsets assume
# SPI flash is the boot device.
config BOOT_DEVICE_NOT_SPI_FLASH
	bool
	default n

config BOOT_DEVICE_SPI_FLASH
	bool
	default y if !BOOT_DEVICE_NOT_SPI_FLASH
	default n

config BOOT_DEVICE_MEMORY_MAPPED
	bool
	default y if ARCH_X86 && BOOT_DEVICE_SPI_FLASH
	default n
	help
	  Inform system if SPI is memory-mapped or not.

config BOOT_DEVICE_SUPPORTS_WRITES
	bool
	default n
	help
	  Indicate that the platform has writable boot device
	  support.

config RTC
	bool
	default n

config TPM
	bool
	default n
	select LPC_TPM if MAINBOARD_HAS_LPC_TPM
	select I2C_TPM if !MAINBOARD_HAS_LPC_TPM && !SPI_TPM
	help
	  Enable this option to enable TPM support in coreboot.

	  If unsure, say N.

config TPM2
	bool
	select LPC_TPM if MAINBOARD_HAS_LPC_TPM
	select I2C_TPM if !MAINBOARD_HAS_LPC_TPM && !SPI_TPM
	help
	  Enable this option to enable TPM2 support in coreboot.

	  If unsure, say N.

config HEAP_SIZE
	hex
	default 0x4000

config STACK_SIZE
	hex
	default 0x1000 if ARCH_X86
	default 0x0

config MAX_CPUS
	int
	default 1

source "src/console/Kconfig"

config HAVE_ACPI_RESUME
	bool
	default n

config ACPI_HUGE_LOWMEM_BACKUP
	bool
	default n
	help
	  On S3 resume path, backup low memory from RAMBASE..RAMTOP in CBMEM.

config RESUME_PATH_SAME_AS_BOOT
	bool
	default y if ARCH_X86
	depends on HAVE_ACPI_RESUME
	help
	  This option indicates that when a system resumes it takes the
	  same path as a regular boot. e.g. an x86 system runs from the
	  reset vector at 0xfffffff0 on both resume and warm/cold boot.

config HAVE_HARD_RESET
	bool
	default n
	help
	  This variable specifies whether a given board has a hard_reset
	  function, no matter if it's provided by board code or chipset code.

config HAVE_ROMSTAGE_CONSOLE_SPINLOCK
	bool
	depends on EARLY_CBMEM_INIT
	default n

config HAVE_ROMSTAGE_NVRAM_CBFS_SPINLOCK
	bool
	depends on EARLY_CBMEM_INIT
	default n
	help
	  This should be enabled on certain plaforms, such as the AMD
	  SR565x, that cannot handle concurrent CBFS accesses from
	  multiple APs during early startup.

config HAVE_ROMSTAGE_MICROCODE_CBFS_SPINLOCK
	bool
	depends on EARLY_CBMEM_INIT
	default n

config HAVE_MONOTONIC_TIMER
	def_bool n
	help
	 The board/chipset provides a monotonic timer.

config GENERIC_UDELAY
	def_bool n
	depends on HAVE_MONOTONIC_TIMER
	help
	 The board/chipset uses a generic udelay function utilizing the
	 monotonic timer.

config TIMER_QUEUE
	def_bool n
	depends on HAVE_MONOTONIC_TIMER
	help
	  Provide a timer queue for performing time-based callbacks.

config COOP_MULTITASKING
	def_bool n
	depends on TIMER_QUEUE && ARCH_X86
	help
	  Cooperative multitasking allows callbacks to be multiplexed on the
	  main thread of ramstage. With this enabled it allows for multiple
	  execution paths to take place when they have udelay() calls within
	  their code.

config NUM_THREADS
	int
	default 4
	depends on COOP_MULTITASKING
	help
	  How many execution threads to cooperatively multitask with.

config HAVE_OPTION_TABLE
	bool
	default n
	help
	  This variable specifies whether a given board has a cmos.layout
	  file containing NVRAM/CMOS bit definitions.
	  It defaults to 'n' but can be selected in mainboard/*/Kconfig.

config PIRQ_ROUTE
	bool
	default n

config HAVE_SMI_HANDLER
	bool
	default n

config PCI_IO_CFG_EXT
	bool
	default n

config IOAPIC
	bool
	default n

config CACHE_ROM_SIZE_OVERRIDE
	hex
	default 0x0

# TODO: Can probably be removed once all chipsets have kconfig options for it.
config VIDEO_MB
	int
	default 0

config USE_WATCHDOG_ON_BOOT
	bool
	default n

config VGA
	bool
	default n
	help
	  Build board-specific VGA code.

config GFXUMA
	bool
	default n
	help
	  Enable Unified Memory Architecture for graphics.

config HAVE_ACPI_TABLES
	bool
	help
	  This variable specifies whether a given board has ACPI table support.
	  It is usually set in mainboard/*/Kconfig.

config HAVE_MP_TABLE
	bool
	help
	  This variable specifies whether a given board has MP table support.
	  It is usually set in mainboard/*/Kconfig.
	  Whether or not the MP table is actually generated by coreboot
	  is configurable by the user via GENERATE_MP_TABLE.

config HAVE_PIRQ_TABLE
	bool
	help
	  This variable specifies whether a given board has PIRQ table support.
	  It is usually set in mainboard/*/Kconfig.
	  Whether or not the PIRQ table is actually generated by coreboot
	  is configurable by the user via GENERATE_PIRQ_TABLE.

config MAX_PIRQ_LINKS
	int
	default 4
	help
	  This variable specifies the number of PIRQ interrupt links which are
	  routable. On most chipsets, this is 4, INTA through INTD. Some
	  chipsets offer more than four links, commonly up to INTH. They may
	  also have a separate link for ATA or IOAPIC interrupts. When the PIRQ
	  table specifies links greater than 4, pirq_route_irqs will not
	  function properly, unless this variable is correctly set.

config COMMON_FADT
	bool
	default n

config ACPI_NHLT
	bool
	default n
	help
	  Build support for NHLT (non HD Audio) ACPI table generation.

#These Options are here to avoid "undefined" warnings.
#The actual selection and help texts are in the following menu.

menu "System tables"

config GENERATE_MP_TABLE
	prompt "Generate an MP table" if HAVE_MP_TABLE || DRIVERS_GENERIC_IOAPIC
	bool
	default HAVE_MP_TABLE || DRIVERS_GENERIC_IOAPIC
	help
	  Generate an MP table (conforming to the Intel MultiProcessor
	  specification 1.4) for this board.

	  If unsure, say Y.

config GENERATE_PIRQ_TABLE
	prompt "Generate a PIRQ table" if HAVE_PIRQ_TABLE
	bool
	default HAVE_PIRQ_TABLE
	help
	  Generate a PIRQ table for this board.

	  If unsure, say Y.

config GENERATE_SMBIOS_TABLES
	depends on ARCH_X86
	bool "Generate SMBIOS tables"
	default y
	help
	  Generate SMBIOS tables for this board.

	  If unsure, say Y.

config SMBIOS_PROVIDED_BY_MOBO
	bool
	default n

config MAINBOARD_SERIAL_NUMBER
	string "SMBIOS Serial Number"
	depends on GENERATE_SMBIOS_TABLES
	depends on !SMBIOS_PROVIDED_BY_MOBO
	default "123456789"
	help
	  The Serial Number to store in SMBIOS structures.

config MAINBOARD_VERSION
	string "SMBIOS Version Number"
	depends on GENERATE_SMBIOS_TABLES
	depends on !SMBIOS_PROVIDED_BY_MOBO
	default "1.0"
	help
	  The Version Number to store in SMBIOS structures.

config MAINBOARD_SMBIOS_MANUFACTURER
	string "SMBIOS Manufacturer"
	depends on GENERATE_SMBIOS_TABLES
	depends on !SMBIOS_PROVIDED_BY_MOBO
	default MAINBOARD_VENDOR
	help
	  Override the default Manufacturer stored in SMBIOS structures.

config MAINBOARD_SMBIOS_PRODUCT_NAME
	string "SMBIOS Product name"
	depends on GENERATE_SMBIOS_TABLES
	depends on !SMBIOS_PROVIDED_BY_MOBO
	default MAINBOARD_PART_NUMBER
	help
	  Override the default Product name stored in SMBIOS structures.

endmenu

source "payloads/Kconfig"

menu "Debugging"

# TODO: Better help text and detailed instructions.
config GDB_STUB
	bool "GDB debugging support"
	default n
	depends on CONSOLE_SERIAL
	help
	  If enabled, you will be able to set breakpoints for gdb debugging.
	  See src/arch/x86/lib/c_start.S for details.

config GDB_WAIT
	bool "Wait for a GDB connection"
	default n
	depends on GDB_STUB
	help
	  If enabled, coreboot will wait for a GDB connection.

config FATAL_ASSERTS
	bool "Halt when hitting a BUG() or assertion error"
	default n
	help
	  If enabled, coreboot will call hlt() on a BUG() or failed ASSERT().

config DEBUG_CBFS
	bool "Output verbose CBFS debug messages"
	default n
	help
	  This option enables additional CBFS related debug messages.

config HAVE_DEBUG_RAM_SETUP
	def_bool n

config DEBUG_RAM_SETUP
	bool "Output verbose RAM init debug messages"
	default n
	depends on HAVE_DEBUG_RAM_SETUP
	help
	  This option enables additional RAM init related debug messages.
	  It is recommended to enable this when debugging issues on your
	  board which might be RAM init related.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config HAVE_DEBUG_CAR
	def_bool n

config DEBUG_CAR
	def_bool n
	depends on HAVE_DEBUG_CAR

if DEFAULT_CONSOLE_LOGLEVEL_7 || DEFAULT_CONSOLE_LOGLEVEL_8
# Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional
# printk(BIOS_DEBUG, ...) calls.
config DEBUG_CAR
	bool "Output verbose Cache-as-RAM debug messages"
	default n
	depends on HAVE_DEBUG_CAR
	help
	  This option enables additional CAR related debug messages.
endif

config DEBUG_PIRQ
	bool "Check PIRQ table consistency"
	default n
	depends on GENERATE_PIRQ_TABLE
	help
	  If unsure, say N.

config HAVE_DEBUG_SMBUS
	def_bool n

config DEBUG_SMBUS
	bool "Output verbose SMBus debug messages"
	default n
	depends on HAVE_DEBUG_SMBUS
	help
	  This option enables additional SMBus (and SPD) debug messages.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config DEBUG_SMI
	bool "Output verbose SMI debug messages"
	default n
	depends on HAVE_SMI_HANDLER
	select SPI_FLASH_SMM if SPI_CONSOLE
	help
	  This option enables additional SMI related debug messages.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config DEBUG_SMM_RELOCATION
	bool "Debug SMM relocation code"
	default n
	depends on HAVE_SMI_HANDLER
	help
	  This option enables additional SMM handler relocation related
	  debug messages.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

# Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional
# printk(BIOS_DEBUG, ...) calls.
config DEBUG_MALLOC
	prompt "Output verbose malloc debug messages" if DEFAULT_CONSOLE_LOGLEVEL_7 || DEFAULT_CONSOLE_LOGLEVEL_8
	bool
	default n
	help
	  This option enables additional malloc related debug messages.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

# Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional
# printk(BIOS_DEBUG, ...) calls.
config DEBUG_ACPI
	prompt "Output verbose ACPI debug messages" if DEFAULT_CONSOLE_LOGLEVEL_7 || DEFAULT_CONSOLE_LOGLEVEL_8
	bool
	default n
	help
	  This option enables additional ACPI related debug messages.

	  Note: This option will slightly increase the size of the coreboot image.

	  If unsure, say N.

# Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional
# printk(BIOS_DEBUG, ...) calls.
config REALMODE_DEBUG
	prompt "Enable debug messages for option ROM execution" if DEFAULT_CONSOLE_LOGLEVEL_7 || DEFAULT_CONSOLE_LOGLEVEL_8
	bool
	default n
	depends on PCI_OPTION_ROM_RUN_REALMODE
	help
	  This option enables additional x86emu related debug messages.

	  Note: This option will increase the time to emulate a ROM.

	  If unsure, say N.

config X86EMU_DEBUG
	bool "Output verbose x86emu debug messages"
	default n
	depends on PCI_OPTION_ROM_RUN_YABEL
	help
	  This option enables additional x86emu related debug messages.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_JMP
	bool "Trace JMP/RETF"
	default n
	depends on X86EMU_DEBUG
	help
	  Print information about JMP and RETF opcodes from x86emu.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_TRACE
	bool "Trace all opcodes"
	default n
	depends on X86EMU_DEBUG
	help
	  Print _all_ opcodes that are executed by x86emu.

	  WARNING: This will produce a LOT of output and take a long time.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_PNP
	bool "Log Plug&Play accesses"
	default n
	depends on X86EMU_DEBUG
	help
	  Print Plug And Play accesses made by option ROMs.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_DISK
	bool "Log Disk I/O"
	default n
	depends on X86EMU_DEBUG
	help
	  Print Disk I/O related messages.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_PMM
	bool "Log PMM"
	default n
	depends on X86EMU_DEBUG
	help
	  Print messages related to POST Memory Manager (PMM).

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.


config X86EMU_DEBUG_VBE
	bool "Debug VESA BIOS Extensions"
	default n
	depends on X86EMU_DEBUG
	help
	  Print messages related to VESA BIOS Extension (VBE) functions.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_INT10
	bool "Redirect INT10 output to console"
	default n
	depends on X86EMU_DEBUG
	help
	  Let INT10 (i.e. character output) calls print messages to debug output.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_INTERRUPTS
	bool "Log intXX calls"
	default n
	depends on X86EMU_DEBUG
	help
	  Print messages related to interrupt handling.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_CHECK_VMEM_ACCESS
	bool "Log special memory accesses"
	default n
	depends on X86EMU_DEBUG
	help
	  Print messages related to accesses to certain areas of the virtual
	  memory (e.g. BDA (BIOS Data Area) or interrupt vectors)

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_MEM
	bool "Log all memory accesses"
	default n
	depends on X86EMU_DEBUG
	help
	  Print memory accesses made by option ROM.
	  Note: This also includes accesses to fetch instructions.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_IO
	bool "Log IO accesses"
	default n
	depends on X86EMU_DEBUG
	help
	  Print I/O accesses made by option ROM.

	  Note: This option will increase the size of the coreboot image.

	  If unsure, say N.

config X86EMU_DEBUG_TIMINGS
	bool "Output timing information"
	default n
	depends on X86EMU_DEBUG && UDELAY_LAPIC && HAVE_MONOTONIC_TIMER
	help
	  Print timing information needed by i915tool.

	  If unsure, say N.

config DEBUG_TPM
	bool "Output verbose TPM debug messages"
	default n
	depends on TPM || TPM2
	help
	  This option enables additional TPM related debug messages.

config DEBUG_SPI_FLASH
	bool "Output verbose SPI flash debug messages"
	default n
	depends on SPI_FLASH
	help
	  This option enables additional SPI flash related debug messages.

config DEBUG_USBDEBUG
	bool "Output verbose USB 2.0 EHCI debug dongle messages"
	default n
	depends on USBDEBUG
	help
	  This option enables additional USB 2.0 debug dongle related messages.

	  Select this to debug the connection of usbdebug dongle. Note that
	  you need some other working console to receive the messages.

if SOUTHBRIDGE_INTEL_BD82X6X && DEFAULT_CONSOLE_LOGLEVEL_8
# Only visible with the right southbridge and loglevel.
config DEBUG_INTEL_ME
	bool "Verbose logging for Intel Management Engine"
	default n
	help
	  Enable verbose logging for Intel Management Engine driver that
	  is present on Intel 6-series chipsets.
endif

config TRACE
	bool "Trace function calls"
	default n
	help
	  If enabled, every function will print information to console once
	  the function is entered. The syntax is ~0xaaaabbbb(0xccccdddd)
	  the 0xaaaabbbb is the actual function and 0xccccdddd is EIP
	  of calling function. Please note some printk related functions
	  are omitted from trace to have good looking console dumps.

config DEBUG_COVERAGE
	bool "Debug code coverage"
	default n
	depends on COVERAGE
	help
	  If enabled, the code coverage hooks in coreboot will output some
	  information about the coverage data that is dumped.

config DEBUG_BOOT_STATE
	bool "Debug boot state machine"
	default n
	help
	  Control debugging of the boot state machine.  When selected displays
	  the state boundaries in ramstage.

config DEBUG_PRINT_PAGE_TABLES
	bool "Print the page tables after construction"
	default n
	depends on ARCH_RISCV
	help
	  After the page tables have been built, print them on the debug
	  console.

config DEBUG_ADA_CODE
	bool "Compile debug code in Ada sources"
	default n
	help
	  Add the compiler switch `-gnata` to compile code guarded by
	  `pragma Debug`.

endmenu

# These probably belong somewhere else, but they are needed somewhere.
config ENABLE_APIC_EXT_ID
	bool
	default n

config WARNINGS_ARE_ERRORS
	bool
	default y

# The four POWER_BUTTON_DEFAULT_ENABLE, POWER_BUTTON_DEFAULT_DISABLE,
# POWER_BUTTON_FORCE_ENABLE and POWER_BUTTON_FORCE_DISABLE options are
# mutually exclusive. One of these options must be selected in the
# mainboard Kconfig if the chipset supports enabling and disabling of
# the power button. Chipset code uses the ENABLE_POWER_BUTTON option set
# in mainboard/Kconfig to know if the button should be enabled or not.

config POWER_BUTTON_DEFAULT_ENABLE
	def_bool n
	help
	  Select when the board has a power button which can optionally be
	  disabled by the user.

config POWER_BUTTON_DEFAULT_DISABLE
	def_bool n
	help
	  Select when the board has a power button which can optionally be
	  enabled by the user, e.g. when the board ships with a jumper over
	  the power switch contacts.

config POWER_BUTTON_FORCE_ENABLE
	def_bool n
	help
	  Select when the board requires that the power button is always
	  enabled.

config POWER_BUTTON_FORCE_DISABLE
	def_bool n
	help
	  Select when the board requires that the power button is always
	  disabled, e.g. when it has been hardwired to ground.

config POWER_BUTTON_IS_OPTIONAL
	bool
	default y if POWER_BUTTON_DEFAULT_ENABLE || POWER_BUTTON_DEFAULT_DISABLE
	default n if !(POWER_BUTTON_DEFAULT_ENABLE || POWER_BUTTON_DEFAULT_DISABLE)
	help
	  Internal option that controls ENABLE_POWER_BUTTON visibility.

config REG_SCRIPT
	bool
	default n
	help
	  Internal option that controls whether we compile in register scripts.

config MAX_REBOOT_CNT
	int
	default 3
	help
	  Internal option that sets the maximum number of bootblock executions allowed
	  with the normal image enabled before assuming the normal image is defective
	  and switching to the fallback image.

config CBFS_SIZE
	hex
	default ROM_SIZE
	help
	  This is the part of the ROM actually managed by CBFS.  Set it to be
	  equal to the full ROM size if that hasn't been overridden by the
	  chipset or mainboard.

config CREATE_BOARD_CHECKLIST
	bool
	default n
	help
	  When selected, creates a webpage showing the implementation status for
	  the board.  Routines highlighted in green are complete, yellow are
	  optional and red are required and must be implemented.  A table is
	  produced for each stage of the boot process except the bootblock.  The
	  red items may be used as an implementation checklist for the board.

config MAKE_CHECKLIST_PUBLIC
	bool
	default n
	help
	  When selected, build/$(CONFIG_MAINBOARD_PART_NUMBER)_checklist.html
	  is copied into the Documentation/$(CONFIG_MAINBOARD_VENDOR)/Board
	  directory.

config CHECKLIST_DATA_FILE_LOCATION
	string
	help
	  Location of the <stage>_complete.dat and <stage>_optional.dat files
	  that are consumed during checklist processing.  <stage>_complete.dat
	  contains the symbols that are expected to be in the resulting image.
	  <stage>_optional.dat is a subset of <stage>_complete.dat and contains
	  a list of weak symbols which the resulting image may consume.  Other
	  symbols contained only in <stage>_complete.dat will be flagged as
	  required and not implemented if a weak implementation is found in the
	  resulting image.

config RAMSTAGE_ADA
	def_bool n
	help
	  Selected by features that use Ada code in ramstage.

config RAMSTAGE_LIBHWBASE
	def_bool n
	select RAMSTAGE_ADA
	help
	  Selected by features that require `libhwbase` in ramstage.

config HWBASE_DYNAMIC_MMIO
	def_bool y