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
|
##
## This file is part of the coreboot project.
##
## Copyright (C) 2007-2010 coresystems GmbH
## (Written by Stefan Reinauer <stepan@coresystems.de> for 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.
##
menu "Devices"
config HAVE_VGA_TEXT_FRAMEBUFFER
bool
help
Selected by graphics drivers that support legacy VGA text mode.
config HAVE_VBE_LINEAR_FRAMEBUFFER
bool
help
Selected by graphics drivers that can set up a VBE linear-framebuffer
mode.
config HAVE_LINEAR_FRAMEBUFFER
bool
help
Selected by graphics drivers that can set up a generic linear
framebuffer.
config HAVE_FSP_GOP
bool
help
Selected by drivers that support to run a blob that implements
the Graphics Output Protocol (GOP).
config MAINBOARD_HAS_NATIVE_VGA_INIT
def_bool n
help
Selected by mainboards / drivers that provide native graphics
init within coreboot.
config MAINBOARD_FORCE_NATIVE_VGA_INIT
def_bool n
depends on MAINBOARD_HAS_NATIVE_VGA_INIT || MAINBOARD_HAS_LIBGFXINIT
help
Selected by mainboards / chipsets whose graphics driver can't or
shouldn't be disabled.
config MAINBOARD_HAS_LIBGFXINIT
def_bool n
help
Selected by mainboards that implement support for `libgfxinit`.
Usually this requires a list of ports to be probed for displays.
choice
prompt "Graphics initialization"
default NO_GFX_INIT if VGA_BIOS && PAYLOAD_SEABIOS
default VGA_ROM_RUN if VGA_BIOS
config MAINBOARD_DO_NATIVE_VGA_INIT
bool "Use native graphics init"
depends on MAINBOARD_HAS_NATIVE_VGA_INIT
help
Some mainboards, such as the Google Link, allow initializing the
display without the need of a binary only VGA OPROM. Enabling this
option may be faster, but also lacks flexibility in setting modes.
config MAINBOARD_USE_LIBGFXINIT
bool "Use libgfxinit"
depends on MAINBOARD_HAS_LIBGFXINIT
select HAVE_VGA_TEXT_FRAMEBUFFER
select HAVE_LINEAR_FRAMEBUFFER
select RAMSTAGE_LIBHWBASE
select VGA if VGA_TEXT_FRAMEBUFFER
help
Use the SPARK library `libgfxinit` for the native graphics
initialization. This requires an Ada toolchain.
config RUN_FSP_GOP
bool "Run a GOP driver"
depends on HAVE_FSP_GOP
select HAVE_LINEAR_FRAMEBUFFER
help
Some platforms (e.g. Intel Braswell and Skylake/Kaby Lake) support
to run a GOP blob. This option enables graphics initialization with
such a blob.
# TODO: Explain differences (if any) for onboard cards.
config VGA_ROM_RUN
bool "Run VGA Option ROMs"
depends on PCI && !MAINBOARD_FORCE_NATIVE_VGA_INIT
select HAVE_VGA_TEXT_FRAMEBUFFER
help
Execute VGA Option ROMs in coreboot if found. This can be used
to enable PCI/AGP/PCI-E video cards when not using a SeaBIOS
payload.
When using a SeaBIOS payload it runs all option ROMs with much
more complete BIOS interrupt services available than coreboot,
which some option ROMs require in order to function correctly.
config NO_GFX_INIT
bool "None"
depends on !MAINBOARD_FORCE_NATIVE_VGA_INIT
help
Select this to not perform any graphics initialization in
coreboot. This is useful if the payload (e.g. SeaBIOS) can
initialize graphics or if pre-boot graphics are not required.
endchoice
config S3_VGA_ROM_RUN
bool "Re-run VGA Option ROMs on S3 resume"
default y
depends on VGA_ROM_RUN && HAVE_ACPI_RESUME
help
Execute VGA Option ROMs in coreboot when resuming from S3 suspend.
When using a SeaBIOS payload it runs all option ROMs with much
more complete BIOS interrupt services available than coreboot,
which some option ROMs require in order to function correctly.
If unsure, say N when using SeaBIOS as payload, Y otherwise.
config ALWAYS_LOAD_OPROM
def_bool n
depends on VGA_ROM_RUN
help
Always load option ROMs if any are found. The decision to run
the ROM is still determined at runtime, but the distinction
between loading and not running comes into play for CHROMEOS.
An example where this is required is that VBT (Video BIOS Tables)
are needed for the kernel's display driver to know how a piece of
hardware is configured to be used.
config ALWAYS_RUN_OPROM
def_bool n
depends on VGA_ROM_RUN && ALWAYS_LOAD_OPROM
help
Always uncondtionally run the option regardless of other
policies.
config ON_DEVICE_ROM_LOAD
bool "Load Option ROMs on PCI devices"
default n if PAYLOAD_SEABIOS
default y if !PAYLOAD_SEABIOS
depends on VGA_ROM_RUN
help
Load Option ROMs stored on PCI/PCIe/AGP VGA devices in coreboot.
If disabled, only Option ROMs stored in CBFS will be executed by
coreboot. If you are concerned about security, you might want to
disable this option, but it might leave your system in a state of
degraded functionality.
When using a SeaBIOS payload it runs all option ROMs with much
more complete BIOS interrupt services available than coreboot,
which some option ROMs require in order to function correctly.
If unsure, say N when using SeaBIOS as payload, Y otherwise.
choice
prompt "Option ROM execution type"
default PCI_OPTION_ROM_RUN_YABEL if !ARCH_X86
default PCI_OPTION_ROM_RUN_REALMODE if ARCH_X86
depends on VGA_ROM_RUN || GEODE_VSA
config PCI_OPTION_ROM_RUN_REALMODE
prompt "Native mode"
bool
depends on ARCH_X86
help
If you select this option, PCI Option ROMs will be executed
natively on the CPU in real mode. No CPU emulation is involved,
so this is the fastest, but also the least secure option.
(only works on x86/x64 systems)
config PCI_OPTION_ROM_RUN_YABEL
prompt "Secure mode"
bool
depends on !GEODE_VSA
help
If you select this option, the x86emu CPU emulator will be used to
execute PCI Option ROMs.
This option prevents Option ROMs from doing dirty tricks with the
system (such as installing SMM modules or hypervisors), but it is
also significantly slower than the native Option ROM initialization
method.
This is the default choice for non-x86 systems.
endchoice
config YABEL_PCI_ACCESS_OTHER_DEVICES
prompt "Allow Option ROMs to access other devices"
bool
depends on PCI_OPTION_ROM_RUN_YABEL
help
Per default, YABEL only allows Option ROMs to access the PCI device
that they are associated with. However, this causes trouble for some
onboard graphics chips whose Option ROM needs to reconfigure the
north bridge.
config YABEL_PCI_FAKE_WRITING_OTHER_DEVICES_CONFIG
prompt "Fake success on writing other device's config space"
bool
depends on YABEL_PCI_ACCESS_OTHER_DEVICES
help
By default, YABEL aborts when the Option ROM tries to write to other
devices' config spaces. With this option enabled, the write doesn't
follow through, but the Option ROM is allowed to go on.
This can create issues such as hanging Option ROMs (if it depends on
that other register changing to the written value), so test for
impact before using this option.
config YABEL_VIRTMEM_LOCATION
prompt "Location of YABEL's virtual memory"
hex
depends on PCI_OPTION_ROM_RUN_YABEL
default 0x1000000
help
YABEL requires 1MB memory for its CPU emulation. This memory is
normally located at 16MB.
config YABEL_DIRECTHW
prompt "Direct hardware access"
bool
depends on PCI_OPTION_ROM_RUN_YABEL && ARCH_X86
help
YABEL consists of two parts: It uses x86emu for the CPU emulation and
additionally provides a PC system emulation that filters bad device
and memory access (such as PCI config space access to other devices
than the initialized one).
When choosing this option, x86emu will pass through all hardware
accesses to memory and I/O devices to the underlying memory and I/O
addresses. While this option prevents Option ROMs from doing dirty
tricks with the CPU (such as installing SMM modules or hypervisors),
they can still access all devices in the system.
Enable this option for a good compromise between security and speed.
config MULTIPLE_VGA_ADAPTERS
bool
default n
menu "Display"
depends on HAVE_VGA_TEXT_FRAMEBUFFER || HAVE_LINEAR_FRAMEBUFFER
config FRAMEBUFFER_SET_VESA_MODE
prompt "Set framebuffer graphics resolution"
bool
depends on PCI_OPTION_ROM_RUN_YABEL || PCI_OPTION_ROM_RUN_REALMODE
select HAVE_VBE_LINEAR_FRAMEBUFFER
help
Set VESA/native framebuffer mode (needed for bootsplash and graphical framebuffer console)
if FRAMEBUFFER_SET_VESA_MODE
choice
prompt "framebuffer graphics resolution"
default FRAMEBUFFER_VESA_MODE_117
help
This option sets the resolution used for the coreboot framebuffer (and
bootsplash screen).
config FRAMEBUFFER_VESA_MODE_100
bool "640x400 256-color"
config FRAMEBUFFER_VESA_MODE_101
bool "640x480 256-color"
config FRAMEBUFFER_VESA_MODE_102
bool "800x600 16-color"
config FRAMEBUFFER_VESA_MODE_103
bool "800x600 256-color"
config FRAMEBUFFER_VESA_MODE_104
bool "1024x768 16-color"
config FRAMEBUFFER_VESA_MODE_105
bool "1024x768 256-color"
config FRAMEBUFFER_VESA_MODE_106
bool "1280x1024 16-color"
config FRAMEBUFFER_VESA_MODE_107
bool "1280x1024 256-color"
config FRAMEBUFFER_VESA_MODE_108
bool "80x60 text"
config FRAMEBUFFER_VESA_MODE_109
bool "132x25 text"
config FRAMEBUFFER_VESA_MODE_10A
bool "132x43 text"
config FRAMEBUFFER_VESA_MODE_10B
bool "132x50 text"
config FRAMEBUFFER_VESA_MODE_10C
bool "132x60 text"
config FRAMEBUFFER_VESA_MODE_10D
bool "320x200 32k-color (1:5:5:5)"
config FRAMEBUFFER_VESA_MODE_10E
bool "320x200 64k-color (5:6:5)"
config FRAMEBUFFER_VESA_MODE_10F
bool "320x200 16.8M-color (8:8:8)"
config FRAMEBUFFER_VESA_MODE_110
bool "640x480 32k-color (1:5:5:5)"
config FRAMEBUFFER_VESA_MODE_111
bool "640x480 64k-color (5:6:5)"
config FRAMEBUFFER_VESA_MODE_112
bool "640x480 16.8M-color (8:8:8)"
config FRAMEBUFFER_VESA_MODE_113
bool "800x600 32k-color (1:5:5:5)"
config FRAMEBUFFER_VESA_MODE_114
bool "800x600 64k-color (5:6:5)"
config FRAMEBUFFER_VESA_MODE_115
bool "800x600 16.8M-color (8:8:8)"
config FRAMEBUFFER_VESA_MODE_116
bool "1024x768 32k-color (1:5:5:5)"
config FRAMEBUFFER_VESA_MODE_117
bool "1024x768 64k-color (5:6:5)"
config FRAMEBUFFER_VESA_MODE_118
bool "1024x768 16.8M-color (8:8:8)"
config FRAMEBUFFER_VESA_MODE_119
bool "1280x1024 32k-color (1:5:5:5)"
config FRAMEBUFFER_VESA_MODE_11A
bool "1280x1024 64k-color (5:6:5)"
config FRAMEBUFFER_VESA_MODE_11B
bool "1280x1024 16.8M-color (8:8:8)"
config FRAMEBUFFER_VESA_MODE_USER
bool "Manually select VESA mode"
endchoice
# Map the config names to an integer (KB).
config FRAMEBUFFER_VESA_MODE
prompt "VESA mode" if FRAMEBUFFER_VESA_MODE_USER
hex
default 0x100 if FRAMEBUFFER_VESA_MODE_100
default 0x101 if FRAMEBUFFER_VESA_MODE_101
default 0x102 if FRAMEBUFFER_VESA_MODE_102
default 0x103 if FRAMEBUFFER_VESA_MODE_103
default 0x104 if FRAMEBUFFER_VESA_MODE_104
default 0x105 if FRAMEBUFFER_VESA_MODE_105
default 0x106 if FRAMEBUFFER_VESA_MODE_106
default 0x107 if FRAMEBUFFER_VESA_MODE_107
default 0x108 if FRAMEBUFFER_VESA_MODE_108
default 0x109 if FRAMEBUFFER_VESA_MODE_109
default 0x10A if FRAMEBUFFER_VESA_MODE_10A
default 0x10B if FRAMEBUFFER_VESA_MODE_10B
default 0x10C if FRAMEBUFFER_VESA_MODE_10C
default 0x10D if FRAMEBUFFER_VESA_MODE_10D
default 0x10E if FRAMEBUFFER_VESA_MODE_10E
default 0x10F if FRAMEBUFFER_VESA_MODE_10F
default 0x110 if FRAMEBUFFER_VESA_MODE_110
default 0x111 if FRAMEBUFFER_VESA_MODE_111
default 0x112 if FRAMEBUFFER_VESA_MODE_112
default 0x113 if FRAMEBUFFER_VESA_MODE_113
default 0x114 if FRAMEBUFFER_VESA_MODE_114
default 0x115 if FRAMEBUFFER_VESA_MODE_115
default 0x116 if FRAMEBUFFER_VESA_MODE_116
default 0x117 if FRAMEBUFFER_VESA_MODE_117
default 0x118 if FRAMEBUFFER_VESA_MODE_118
default 0x119 if FRAMEBUFFER_VESA_MODE_119
default 0x11A if FRAMEBUFFER_VESA_MODE_11A
default 0x11B if FRAMEBUFFER_VESA_MODE_11B
default 0x117 if FRAMEBUFFER_VESA_MODE_USER
config BOOTSPLASH
prompt "Show graphical bootsplash"
bool
help
This option shows a graphical bootsplash screen. The graphics are
loaded from the CBFS file bootsplash.jpg.
You can either specify the location and file name of the
image in the 'General' section or add it manually to CBFS, using,
for example, cbfstool.
endif # FRAMEBUFFER_SET_VESA_MODE
choice
prompt "Framebuffer mode"
default VGA_TEXT_FRAMEBUFFER
config VGA_TEXT_FRAMEBUFFER
bool "Legacy VGA text mode"
depends on HAVE_VGA_TEXT_FRAMEBUFFER
help
If this option is enabled, coreboot will initialize graphics in
legacy VGA text mode or, if a VGA BIOS is used and a VESA mode set,
switch to text mode before handing control to a payload.
config VBE_LINEAR_FRAMEBUFFER
bool "VESA framebuffer"
depends on HAVE_VBE_LINEAR_FRAMEBUFFER
help
This option keeps the framebuffer mode set after coreboot finishes
execution. If this option is enabled, coreboot will pass a
framebuffer entry in its coreboot table and the payload will need a
compatible driver.
config GENERIC_LINEAR_FRAMEBUFFER
bool "Linear \"high-resolution\" framebuffer"
depends on HAVE_LINEAR_FRAMEBUFFER
help
This option enables a high-resolution, linear framebuffer. If this
option is enabled, coreboot will pass a framebuffer entry in its
coreboot table and the payload will need a compatible driver.
endchoice
# Workaround to have LINEAR_FRAMEBUFFER set in both cases
# VBE_LINEAR_FRAMEBUFFER and GENERIC_LINEAR_FRAMEBUFFER.
# `kconfig_lint` doesn't let us use the same name with
# different texts in the choice above.
config LINEAR_FRAMEBUFFER
def_bool y
depends on VBE_LINEAR_FRAMEBUFFER || GENERIC_LINEAR_FRAMEBUFFER
endmenu # "Display"
config SMBUS_HAS_AUX_CHANNELS
bool
default n
config PCI
bool
default n
if PCI
config NO_MMCONF_SUPPORT
bool
default n
config MMCONF_SUPPORT
bool
default !NO_MMCONF_SUPPORT
config HYPERTRANSPORT_PLUGIN_SUPPORT
bool
default n
config PCIX_PLUGIN_SUPPORT
bool
default y
config CARDBUS_PLUGIN_SUPPORT
bool
default y
config AZALIA_PLUGIN_SUPPORT
bool
default n
config PCIEXP_PLUGIN_SUPPORT
bool
default y
endif # PCI
if PCIEXP_PLUGIN_SUPPORT
config PCIEXP_COMMON_CLOCK
prompt "Enable PCIe Common Clock"
bool
default n
help
Detect and enable Common Clock on PCIe links.
config PCIEXP_ASPM
prompt "Enable PCIe ASPM"
bool
default n
help
Detect and enable ASPM (Active State Power Management) on PCIe links.
config PCIEXP_CLK_PM
prompt "Enable PCIe Clock Power Management"
bool
default n
help
Detect and enable Clock Power Management on PCIe.
config PCIEXP_L1_SUB_STATE
prompt "Enable PCIe ASPM L1 SubState"
bool
depends on (MMCONF_SUPPORT || PCI_IO_CFG_EXT)
default n
help
Detect and enable ASPM on PCIe links.
endif # PCIEXP_PLUGIN_SUPPORT
config EARLY_PCI_BRIDGE
bool "Early PCI bridge"
depends on PCI
default n
help
While coreboot is executing code from ROM, the coreboot resource
allocator has not been running yet. Hence PCI devices living behind
a bridge are not yet visible to the system.
This option enables static configuration for a single pre-defined
PCI bridge function on bus 0.
if EARLY_PCI_BRIDGE
config EARLY_PCI_BRIDGE_DEVICE
hex "bridge device"
default 0x0
config EARLY_PCI_BRIDGE_FUNCTION
hex "bridge function"
default 0x0
config EARLY_PCI_MMIO_BASE
hex "MMIO window base"
default 0x0
endif # EARLY_PCI_BRIDGE
config SUBSYSTEM_VENDOR_ID
hex "Override PCI Subsystem Vendor ID"
depends on PCI
default 0x0000
help
This config option will override the devicetree settings for
PCI Subsystem Vendor ID.
config SUBSYSTEM_DEVICE_ID
hex "Override PCI Subsystem Device ID"
depends on PCI
default 0x0000
help
This config option will override the devicetree settings for
PCI Subsystem Device ID.
config VGA_BIOS
bool "Add a VGA BIOS image"
depends on ARCH_X86
help
Select this option if you have a VGA BIOS image that you would
like to add to your ROM.
You will be able to specify the location and file name of the
image later.
config VGA_BIOS_FILE
string "VGA BIOS path and filename"
depends on VGA_BIOS
default "vgabios.bin"
help
The path and filename of the file to use as VGA BIOS.
config VGA_BIOS_ID
string "VGA device PCI IDs"
depends on VGA_BIOS
default "1106,3230"
help
The comma-separated PCI vendor and device ID that would associate
your VGA BIOS to your video card.
Example: 1106,3230
In the above example 1106 is the PCI vendor ID (in hex, but without
the "0x" prefix) and 3230 specifies the PCI device ID of the
video card (also in hex, without "0x" prefix).
Under GNU/Linux you can run `lspci -nn` to list the IDs of your PCI devices.
config INTEL_GMA_ADD_VBT_DATA_FILE
depends on SOC_INTEL_COMMON || CPU_INTEL_COMMON
bool "Add a Video Bios Table (VBT) binary to CBFS"
help
Add a VBT data file to CBFS. The VBT describes the integrated
GPU and connections, and is needed by the GOP driver integrated into
FSP and the OS driver in order to initialize the display.
config INTEL_GMA_VBT_FILE
string "VBT binary path and filename"
depends on INTEL_GMA_ADD_VBT_DATA_FILE
help
The path and filename of the VBT binary.
config SOFTWARE_I2C
bool "Enable I2C controller emulation in software"
default n
help
This config option will enable code to override the i2c_transfer
routine with a (simple) software emulation of the protocol. This may
be useful for debugging or on platforms where a driver for the real
I2C controller is not (yet) available. The platform code needs to
provide bindings to manually toggle I2C lines.
endmenu
|