2 ## This file is part of the coreboot project.
4 ## Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
5 ## Copyright (C) 2009-2010 coresystems GmbH
7 ## This program is free software; you can redistribute it and/or modify
8 ## it under the terms of the GNU General Public License as published by
9 ## the Free Software Foundation; version 2 of the License.
11 ## This program is distributed in the hope that it will be useful,
12 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ## GNU General Public License for more details.
17 mainmenu "coreboot configuration"
26 string "Local version string"
28 Append an extra string to the end of the coreboot version.
30 This can be useful if, for instance, you want to append the
31 respective board's hostname or some other identifying string to
32 the coreboot version number, so that you can easily distinguish
33 boot logs of different boards from each other.
35 config CONFIGURABLE_CBFS_PREFIX
38 Select this to prompt to use to configure the prefix for cbfs files.
41 string "CBFS prefix to use" if CONFIGURABLE_CBFS_PREFIX
44 Select the prefix to all files put into the image. It's "fallback"
45 by default, "normal" is a common alternative.
48 prompt "Compiler to use"
51 This option allows you to select the compiler used for building
53 You must build the coreboot crosscompiler for the board that you
56 To build all the GCC crosscompilers (takes a LONG time), run:
59 For help on individual architectures, run the command:
65 Use the GNU Compiler Collection (GCC) to build coreboot.
67 For details see http://gcc.gnu.org.
69 config COMPILER_LLVM_CLANG
70 bool "LLVM/clang (TESTING ONLY - Not currently working)"
72 Use LLVM/clang to build coreboot. To use this, you must build the
73 coreboot version of the clang compiler. Run the command
75 Note that this option is not currently working correctly and should
76 really only be selected if you're trying to work on getting clang
79 For details see http://clang.llvm.org.
84 bool "Allow building with any toolchain"
87 Many toolchains break when building coreboot since it uses quite
88 unusual linker features. Unless developers explicitely request it,
89 we'll have to assume that they use their distro compiler by mistake.
90 Make sure that using patched compilers is a conscious decision.
93 bool "Use ccache to speed up (re)compilation"
96 Enables the use of ccache for faster builds.
98 Requires the ccache utility in your system $PATH.
100 For details see https://ccache.samba.org.
103 bool "Generate flashmap descriptor parser using flex and bison"
106 Enable this option if you are working on the flashmap descriptor
107 parser and made changes to fmd_scanner.l or fmd_parser.y.
109 Otherwise, say N to use the provided pregenerated scanner/parser.
111 config UTIL_GENPARSER
112 bool "Generate SCONFIG & BINCFG parser using flex and bison"
115 Enable this option if you are working on the sconfig device tree
116 parser or bincfg and made changes to the .l or .y files.
118 Otherwise, say N to use the provided pregenerated scanner/parser.
120 config USE_OPTION_TABLE
121 bool "Use CMOS for configuration values"
122 depends on HAVE_OPTION_TABLE
124 Enable this option if coreboot shall read options from the "CMOS"
125 NVRAM instead of using hard-coded values.
127 config STATIC_OPTION_TABLE
128 bool "Load default configuration values into CMOS on each boot"
129 depends on USE_OPTION_TABLE
131 Enable this option to reset "CMOS" NVRAM values to default on
132 every boot. Use this if you want the NVRAM configuration to
133 never be modified from its default values.
135 config COMPRESS_RAMSTAGE
136 bool "Compress ramstage with LZMA"
137 depends on HAVE_RAMSTAGE
138 # Default value set at the end of the file
140 Compress ramstage to save memory in the flash image. Note
141 that decompression might slow down booting if the boot flash
142 is connected through a slow link (i.e. SPI).
144 config COMPRESS_PRERAM_STAGES
145 bool "Compress romstage and verstage with LZ4"
146 depends on !ARCH_X86 && (HAVE_ROMSTAGE || HAVE_VERSTAGE)
147 # Default value set at the end of the file
149 Compress romstage and (if it exists) verstage with LZ4 to save flash
150 space and speed up boot, since the time for reading the image from SPI
151 (and in the vboot case verifying it) is usually much greater than the
152 time spent decompressing. Doesn't work for XIP stages (assume all
153 ARCH_X86 for now) for obvious reasons.
155 config COMPRESS_BOOTBLOCK
157 depends on HAVE_BOOTBLOCK
159 This option can be used to compress the bootblock with LZ4 and attach
160 a small self-decompression stub to its front. This can drastically
161 reduce boot time on platforms where the bootblock is loaded over a
162 very slow connection and bootblock size trumps all other factors for
163 speed. Since using this option usually requires changes to the
164 SoC memlayout and possibly extra support code, it should not be
165 user-selectable. (There's no real point in offering this to the user
166 anyway... if it works and saves boot time, you would always want it.)
168 config INCLUDE_CONFIG_FILE
169 bool "Include the coreboot .config file into the ROM image"
170 # Default value set at the end of the file
172 Include the .config file that was used to compile coreboot
173 in the (CBFS) ROM image. This is useful if you want to know which
174 options were used to build a specific coreboot.rom image.
176 Saying Y here will increase the image size by 2-3KB.
178 You can use the following command to easily list the options:
180 grep -a CONFIG_ coreboot.rom
182 Alternatively, you can also use cbfstool to print the image
183 contents (including the raw 'config' item we're looking for).
187 $ cbfstool coreboot.rom print
188 coreboot.rom: 4096 kB, bootblocksize 1008, romsize 4194304,
192 Name Offset Type Size
193 cmos_layout.bin 0x0 cmos layout 1159
194 fallback/romstage 0x4c0 stage 339756
195 fallback/ramstage 0x53440 stage 186664
196 fallback/payload 0x80dc0 payload 51526
197 config 0x8d740 raw 3324
198 (empty) 0x8e480 null 3610440
200 config COLLECT_TIMESTAMPS
201 bool "Create a table of timestamps collected during boot"
202 default y if ARCH_X86
204 Make coreboot create a table of timer-ID/timer-value pairs to
205 allow measuring time spent at different phases of the boot process.
207 config TIMESTAMPS_ON_CONSOLE
208 bool "Print the timestamp values on the console"
210 depends on COLLECT_TIMESTAMPS
212 Print the timestamps to the debug console if enabled at level spew.
215 bool "Allow use of binary-only repository"
217 This draws in the blobs repository, which contains binary files that
218 might be required for some chipsets or boards.
219 This flag ensures that a "Free" option remains available for users.
222 bool "Code coverage support"
223 depends on COMPILER_GCC
225 Add code coverage support for coreboot. This will store code
226 coverage information in CBMEM for extraction from user space.
230 bool "Undefined behavior sanitizer support"
233 Instrument the code with checks for undefined behavior. If unsure,
234 say N because it adds a small performance penalty and may abort
235 on code that happens to work in spite of the UB.
237 config NO_RELOCATABLE_RAMSTAGE
239 default n if ARCH_X86
242 config RELOCATABLE_RAMSTAGE
244 depends on HAVE_RAMSTAGE
245 default !NO_RELOCATABLE_RAMSTAGE
246 select RELOCATABLE_MODULES
248 The reloctable ramstage support allows for the ramstage to be built
249 as a relocatable module. The stage loader can identify a place
250 out of the OS way so that copying memory is unnecessary during an S3
251 wake. When selecting this option the romstage is responsible for
252 determing a stack location to use for loading the ramstage.
254 config CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM
255 depends on RELOCATABLE_RAMSTAGE
258 The relocated ramstage is saved in an area specified by the
259 by the board and/or chipset.
262 bool "Update existing coreboot.rom image"
264 If this option is enabled, no new coreboot.rom file
265 is created. Instead it is expected that there already
266 is a suitable file for further processing.
267 The bootblock will not be modified.
269 If unsure, select 'N'
271 config BOOTSPLASH_IMAGE
272 bool "Add a bootsplash image"
274 Select this option if you have a bootsplash image that you would
275 like to add to your ROM.
277 This will only add the image to the ROM. To actually run it check
278 options under 'Display' section.
280 config BOOTSPLASH_FILE
281 string "Bootsplash path and filename"
282 depends on BOOTSPLASH_IMAGE
283 # Default value set at the end of the file
285 The path and filename of the file to use as graphical bootsplash
286 screen. The file format has to be jpg.
288 config HAVE_RAMPAYLOAD
292 bool "Enable coreboot flow without executing ramstage"
294 depends on HAVE_RAMPAYLOAD
296 If this option is enabled, coreboot flow will skip ramstage
297 loading and execution of ramstage to load payload.
299 Instead it is expected to load payload from postcar stage itself.
301 In this flow coreboot will perform basic x86 initialization
302 (DRAM resource allocation), MTRR programming,
303 Skip PCI enumeration logic and only allocate BAR for fixed devices
304 (bootable devices, TPM over GSPI).
310 source "src/mainboard/Kconfig"
314 default "devicetree.cb"
316 This symbol allows mainboards to select a different file under their
317 mainboard directory for the devicetree.cb file. This allows the board
318 variants that need different devicetrees to be in the same directory.
320 Examples: "devicetree.variant.cb"
321 "variant/devicetree.cb"
323 config OVERRIDE_DEVICETREE
327 This symbol allows variants to provide an override devicetree file to
328 override the registers and/or add new devices on top of the ones
329 provided by baseboard devicetree using CONFIG_DEVICETREE.
331 Examples: "devicetree.variant-override.cb"
332 "variant/devicetree-override.cb"
335 hex "Size of CBFS filesystem in ROM"
336 # Default value set at the end of the file
338 This is the part of the ROM actually managed by CBFS, located at the
339 end of the ROM (passed through cbfstool -o) on x86 and at at the start
340 of the ROM (passed through cbfstool -s) everywhere else. It defaults
341 to span the whole ROM on all but Intel systems that use an Intel Firmware
342 Descriptor. It can be overridden to make coreboot live alongside other
343 components like ChromeOS's vboot/FMAP or Intel's IFD / ME / TXE
347 string "fmap description file in fmd format"
348 default "src/mainboard/$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" if CHROMEOS
351 The build system creates a default FMAP from ROM_SIZE and CBFS_SIZE,
352 but in some cases more complex setups are required.
353 When an fmd is specified, it overrides the default format.
357 # load site-local kconfig to allow user specific defaults and overrides
358 source "site-local/Kconfig"
360 config SYSTEM_TYPE_LAPTOP
364 config SYSTEM_TYPE_TABLET
368 config SYSTEM_TYPE_DETACHABLE
372 config SYSTEM_TYPE_CONVERTIBLE
376 config CBFS_AUTOGEN_ATTRIBUTES
380 If this option is selected, every file in cbfs which has a constraint
381 regarding position or alignment will get an additional file attribute
382 which describes this constraint.
387 source "src/soc/*/Kconfig"
389 source "src/cpu/Kconfig"
390 comment "Northbridge"
391 source "src/northbridge/*/*/Kconfig"
392 comment "Southbridge"
393 source "src/southbridge/*/*/Kconfig"
395 source "src/superio/*/*/Kconfig"
396 comment "Embedded Controllers"
397 source "src/ec/acpi/Kconfig"
398 source "src/ec/*/*/Kconfig"
400 source "src/southbridge/intel/common/firmware/Kconfig"
401 source "src/vendorcode/*/Kconfig"
403 source "src/arch/*/Kconfig"
407 source "src/device/Kconfig"
409 menu "Generic Drivers"
410 source "src/drivers/*/Kconfig"
411 source "src/drivers/*/*/Kconfig"
412 source "src/commonlib/storage/Kconfig"
417 source "src/security/Kconfig"
421 source "src/acpi/Kconfig"
423 # This option is for the current boards/chipsets where SPI flash
424 # is not the boot device. Currently nearly all boards/chipsets assume
425 # SPI flash is the boot device.
426 config BOOT_DEVICE_NOT_SPI_FLASH
430 config BOOT_DEVICE_SPI_FLASH
432 default y if !BOOT_DEVICE_NOT_SPI_FLASH
435 config BOOT_DEVICE_MEMORY_MAPPED
437 default y if ARCH_X86 && BOOT_DEVICE_SPI_FLASH
440 Inform system if SPI is memory-mapped or not.
442 config BOOT_DEVICE_SUPPORTS_WRITES
446 Indicate that the platform has writable boot device
455 default 0x100000 if FLATTENED_DEVICE_TREE
460 default 0x1000 if ARCH_X86
467 source "src/console/Kconfig"
469 config HAVE_ACPI_RESUME
473 config ACPI_HUGE_LOWMEM_BACKUP
477 On S3 resume path, backup low memory from RAMBASE..RAMTOP in CBMEM.
479 config RESUME_PATH_SAME_AS_BOOT
481 default y if ARCH_X86
482 depends on HAVE_ACPI_RESUME
484 This option indicates that when a system resumes it takes the
485 same path as a regular boot. e.g. an x86 system runs from the
486 reset vector at 0xfffffff0 on both resume and warm/cold boot.
488 config HAVE_ROMSTAGE_CONSOLE_SPINLOCK
492 config HAVE_ROMSTAGE_NVRAM_CBFS_SPINLOCK
496 This should be enabled on certain plaforms, such as the AMD
497 SR565x, that cannot handle concurrent CBFS accesses from
498 multiple APs during early startup.
500 config HAVE_ROMSTAGE_MICROCODE_CBFS_SPINLOCK
504 config HAVE_MONOTONIC_TIMER
507 The board/chipset provides a monotonic timer.
509 config GENERIC_UDELAY
511 depends on HAVE_MONOTONIC_TIMER
513 The board/chipset uses a generic udelay function utilizing the
518 depends on HAVE_MONOTONIC_TIMER
520 Provide a timer queue for performing time-based callbacks.
522 config COOP_MULTITASKING
524 depends on TIMER_QUEUE && ARCH_X86
526 Cooperative multitasking allows callbacks to be multiplexed on the
527 main thread of ramstage. With this enabled it allows for multiple
528 execution paths to take place when they have udelay() calls within
534 depends on COOP_MULTITASKING
536 How many execution threads to cooperatively multitask with.
538 config HAVE_OPTION_TABLE
542 This variable specifies whether a given board has a cmos.layout
543 file containing NVRAM/CMOS bit definitions.
544 It defaults to 'n' but can be selected in mainboard/*/Kconfig.
550 config HAVE_SMI_HANDLER
554 config PCI_IO_CFG_EXT
562 config USE_WATCHDOG_ON_BOOT
570 Enable Unified Memory Architecture for graphics.
572 config HAVE_ACPI_TABLES
575 This variable specifies whether a given board has ACPI table support.
576 It is usually set in mainboard/*/Kconfig.
581 This variable specifies whether a given board has MP table support.
582 It is usually set in mainboard/*/Kconfig.
583 Whether or not the MP table is actually generated by coreboot
584 is configurable by the user via GENERATE_MP_TABLE.
586 config HAVE_PIRQ_TABLE
589 This variable specifies whether a given board has PIRQ table support.
590 It is usually set in mainboard/*/Kconfig.
591 Whether or not the PIRQ table is actually generated by coreboot
592 is configurable by the user via GENERATE_PIRQ_TABLE.
594 config MAX_PIRQ_LINKS
598 This variable specifies the number of PIRQ interrupt links which are
599 routable. On most chipsets, this is 4, INTA through INTD. Some
600 chipsets offer more than four links, commonly up to INTH. They may
601 also have a separate link for ATA or IOAPIC interrupts. When the PIRQ
602 table specifies links greater than 4, pirq_route_irqs will not
603 function properly, unless this variable is correctly set.
613 Build support for NHLT (non HD Audio) ACPI table generation.
617 depends on HAVE_ACPI_TABLES
619 Build an ACPI Boot Error Record Table.
621 #These Options are here to avoid "undefined" warnings.
622 #The actual selection and help texts are in the following menu.
626 config GENERATE_MP_TABLE
627 prompt "Generate an MP table" if HAVE_MP_TABLE || DRIVERS_GENERIC_IOAPIC
629 default HAVE_MP_TABLE || DRIVERS_GENERIC_IOAPIC
631 Generate an MP table (conforming to the Intel MultiProcessor
632 specification 1.4) for this board.
636 config GENERATE_PIRQ_TABLE
637 prompt "Generate a PIRQ table" if HAVE_PIRQ_TABLE
639 default HAVE_PIRQ_TABLE
641 Generate a PIRQ table for this board.
645 config GENERATE_SMBIOS_TABLES
647 bool "Generate SMBIOS tables"
650 Generate SMBIOS tables for this board.
654 config SMBIOS_PROVIDED_BY_MOBO
658 config MAINBOARD_SERIAL_NUMBER
659 prompt "SMBIOS Serial Number" if !SMBIOS_PROVIDED_BY_MOBO
661 depends on GENERATE_SMBIOS_TABLES
664 The Serial Number to store in SMBIOS structures.
666 config MAINBOARD_VERSION
667 prompt "SMBIOS Version Number" if !SMBIOS_PROVIDED_BY_MOBO
669 depends on GENERATE_SMBIOS_TABLES
672 The Version Number to store in SMBIOS structures.
674 config MAINBOARD_SMBIOS_MANUFACTURER
675 prompt "SMBIOS Manufacturer" if !SMBIOS_PROVIDED_BY_MOBO
677 depends on GENERATE_SMBIOS_TABLES
678 default MAINBOARD_VENDOR
680 Override the default Manufacturer stored in SMBIOS structures.
682 config MAINBOARD_SMBIOS_PRODUCT_NAME
683 prompt "SMBIOS Product name" if !SMBIOS_PROVIDED_BY_MOBO
685 depends on GENERATE_SMBIOS_TABLES
686 default MAINBOARD_PART_NUMBER
688 Override the default Product name stored in SMBIOS structures.
690 config SMBIOS_ENCLOSURE_TYPE
692 depends on GENERATE_SMBIOS_TABLES
693 default 0x09 if SYSTEM_TYPE_LAPTOP
694 default 0x1e if SYSTEM_TYPE_TABLET
695 default 0x1f if SYSTEM_TYPE_CONVERTIBLE
696 default 0x20 if SYSTEM_TYPE_DETACHABLE
699 System Enclosure or Chassis Types as defined in SMBIOS specification.
700 The default value is SMBIOS_ENCLOSURE_DESKTOP (0x03) but laptop,
701 convertible, or tablet enclosure will be used if the appropriate
702 system type is selected.
706 source "payloads/Kconfig"
710 comment "CPU Debug Settings"
711 source "src/cpu/*/Kconfig.debug"
713 comment "General Debug Settings"
715 # TODO: Better help text and detailed instructions.
717 bool "GDB debugging support"
719 depends on CONSOLE_SERIAL
721 If enabled, you will be able to set breakpoints for gdb debugging.
722 See src/arch/x86/lib/c_start.S for details.
725 bool "Wait for a GDB connection in the ramstage"
729 If enabled, coreboot will wait for a GDB connection in the ramstage.
733 bool "Halt when hitting a BUG() or assertion error"
736 If enabled, coreboot will call hlt() on a BUG() or failed ASSERT().
738 config HAVE_DEBUG_GPIO
742 bool "Output verbose GPIO debug messages"
743 depends on HAVE_DEBUG_GPIO
746 bool "Output verbose CBFS debug messages"
749 This option enables additional CBFS related debug messages.
751 config HAVE_DEBUG_RAM_SETUP
754 config DEBUG_RAM_SETUP
755 bool "Output verbose RAM init debug messages"
757 depends on HAVE_DEBUG_RAM_SETUP
759 This option enables additional RAM init related debug messages.
760 It is recommended to enable this when debugging issues on your
761 board which might be RAM init related.
763 Note: This option will increase the size of the coreboot image.
768 bool "Check PIRQ table consistency"
770 depends on GENERATE_PIRQ_TABLE
774 config HAVE_DEBUG_SMBUS
778 bool "Output verbose SMBus debug messages"
780 depends on HAVE_DEBUG_SMBUS
782 This option enables additional SMBus (and SPD) debug messages.
784 Note: This option will increase the size of the coreboot image.
789 bool "Output verbose SMI debug messages"
791 depends on HAVE_SMI_HANDLER
792 select SPI_FLASH_SMM if SPI_CONSOLE || CONSOLE_SPI_FLASH
794 This option enables additional SMI related debug messages.
796 Note: This option will increase the size of the coreboot image.
800 # Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional
801 # printk(BIOS_DEBUG, ...) calls.
803 prompt "Output verbose malloc debug messages" if DEFAULT_CONSOLE_LOGLEVEL_7 || DEFAULT_CONSOLE_LOGLEVEL_8
807 This option enables additional malloc related debug messages.
809 Note: This option will increase the size of the coreboot image.
813 # Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional
814 # printk(BIOS_DEBUG, ...) calls.
816 prompt "Output verbose ACPI debug messages" if DEFAULT_CONSOLE_LOGLEVEL_7 || DEFAULT_CONSOLE_LOGLEVEL_8
820 This option enables additional ACPI related debug messages.
822 Note: This option will slightly increase the size of the coreboot image.
826 config DEBUG_CONSOLE_INIT
827 bool "Debug console initialisation code"
830 With this option printk()'s are attempted before console hardware
831 initialisation has been completed. Your mileage may vary.
833 Typically you will need to modify source in console_hw_init() such
834 that a working console appears before the one you want to debug.
838 # Only visible if debug level is DEBUG (7) or SPEW (8) as it does additional
839 # printk(BIOS_DEBUG, ...) calls.
840 config REALMODE_DEBUG
841 prompt "Enable debug messages for option ROM execution" if DEFAULT_CONSOLE_LOGLEVEL_7 || DEFAULT_CONSOLE_LOGLEVEL_8
844 depends on PCI_OPTION_ROM_RUN_REALMODE
846 This option enables additional x86emu related debug messages.
848 Note: This option will increase the time to emulate a ROM.
853 bool "Output verbose x86emu debug messages"
855 depends on PCI_OPTION_ROM_RUN_YABEL
857 This option enables additional x86emu related debug messages.
859 Note: This option will increase the size of the coreboot image.
863 config X86EMU_DEBUG_JMP
864 bool "Trace JMP/RETF"
866 depends on X86EMU_DEBUG
868 Print information about JMP and RETF opcodes from x86emu.
870 Note: This option will increase the size of the coreboot image.
874 config X86EMU_DEBUG_TRACE
875 bool "Trace all opcodes"
877 depends on X86EMU_DEBUG
879 Print _all_ opcodes that are executed by x86emu.
881 WARNING: This will produce a LOT of output and take a long time.
883 Note: This option will increase the size of the coreboot image.
887 config X86EMU_DEBUG_PNP
888 bool "Log Plug&Play accesses"
890 depends on X86EMU_DEBUG
892 Print Plug And Play accesses made by option ROMs.
894 Note: This option will increase the size of the coreboot image.
898 config X86EMU_DEBUG_DISK
901 depends on X86EMU_DEBUG
903 Print Disk I/O related messages.
905 Note: This option will increase the size of the coreboot image.
909 config X86EMU_DEBUG_PMM
912 depends on X86EMU_DEBUG
914 Print messages related to POST Memory Manager (PMM).
916 Note: This option will increase the size of the coreboot image.
921 config X86EMU_DEBUG_VBE
922 bool "Debug VESA BIOS Extensions"
924 depends on X86EMU_DEBUG
926 Print messages related to VESA BIOS Extension (VBE) functions.
928 Note: This option will increase the size of the coreboot image.
932 config X86EMU_DEBUG_INT10
933 bool "Redirect INT10 output to console"
935 depends on X86EMU_DEBUG
937 Let INT10 (i.e. character output) calls print messages to debug output.
939 Note: This option will increase the size of the coreboot image.
943 config X86EMU_DEBUG_INTERRUPTS
944 bool "Log intXX calls"
946 depends on X86EMU_DEBUG
948 Print messages related to interrupt handling.
950 Note: This option will increase the size of the coreboot image.
954 config X86EMU_DEBUG_CHECK_VMEM_ACCESS
955 bool "Log special memory accesses"
957 depends on X86EMU_DEBUG
959 Print messages related to accesses to certain areas of the virtual
960 memory (e.g. BDA (BIOS Data Area) or interrupt vectors)
962 Note: This option will increase the size of the coreboot image.
966 config X86EMU_DEBUG_MEM
967 bool "Log all memory accesses"
969 depends on X86EMU_DEBUG
971 Print memory accesses made by option ROM.
972 Note: This also includes accesses to fetch instructions.
974 Note: This option will increase the size of the coreboot image.
978 config X86EMU_DEBUG_IO
979 bool "Log IO accesses"
981 depends on X86EMU_DEBUG
983 Print I/O accesses made by option ROM.
985 Note: This option will increase the size of the coreboot image.
989 config X86EMU_DEBUG_TIMINGS
990 bool "Output timing information"
992 depends on X86EMU_DEBUG && UDELAY_LAPIC && HAVE_MONOTONIC_TIMER
994 Print timing information needed by i915tool.
998 config DEBUG_SPI_FLASH
999 bool "Output verbose SPI flash debug messages"
1001 depends on SPI_FLASH
1003 This option enables additional SPI flash related debug messages.
1005 if SOUTHBRIDGE_INTEL_BD82X6X && DEFAULT_CONSOLE_LOGLEVEL_8
1006 # Only visible with the right southbridge and loglevel.
1007 config DEBUG_INTEL_ME
1008 bool "Verbose logging for Intel Management Engine"
1011 Enable verbose logging for Intel Management Engine driver that
1012 is present on Intel 6-series chipsets.
1016 bool "Trace function calls"
1019 If enabled, every function will print information to console once
1020 the function is entered. The syntax is ~0xaaaabbbb(0xccccdddd)
1021 the 0xaaaabbbb is the actual function and 0xccccdddd is EIP
1022 of calling function. Please note some printk related functions
1023 are omitted from trace to have good looking console dumps.
1025 config DEBUG_COVERAGE
1026 bool "Debug code coverage"
1030 If enabled, the code coverage hooks in coreboot will output some
1031 information about the coverage data that is dumped.
1033 config DEBUG_BOOT_STATE
1034 bool "Debug boot state machine"
1037 Control debugging of the boot state machine. When selected displays
1038 the state boundaries in ramstage.
1040 config DEBUG_ADA_CODE
1041 bool "Compile debug code in Ada sources"
1044 Add the compiler switch `-gnata` to compile code guarded by
1047 config HAVE_EM100_SUPPORT
1048 bool "Platform can support the Dediprog EM100 SPI emulator"
1050 This is enabled by platforms which can support using the EM100.
1053 bool "Configure image for EM100 usage"
1054 depends on HAVE_EM100_SUPPORT
1056 The Dediprog EM100 SPI emulator allows fast loading of new SPI images
1057 over USB. However it only supports a maximum SPI clock of 20MHz and
1058 single data output. Enable this option to use a 20MHz SPI clock and
1059 disable "Dual Output Fast Read" Support.
1061 On AMD platforms this changes the SPI speed at run-time if the
1062 mainboard code supports this. On supported Intel platforms this works
1063 by changing the settings in the descriptor.bin file.
1068 ###############################################################################
1069 # Set variables with no prompt - these can be set anywhere, and putting at
1070 # the end of this file gives the most flexibility.
1072 source "src/lib/Kconfig"
1074 config ENABLE_APIC_EXT_ID
1078 config WARNINGS_ARE_ERRORS
1082 # The four POWER_BUTTON_DEFAULT_ENABLE, POWER_BUTTON_DEFAULT_DISABLE,
1083 # POWER_BUTTON_FORCE_ENABLE and POWER_BUTTON_FORCE_DISABLE options are
1084 # mutually exclusive. One of these options must be selected in the
1085 # mainboard Kconfig if the chipset supports enabling and disabling of
1086 # the power button. Chipset code uses the ENABLE_POWER_BUTTON option set
1087 # in mainboard/Kconfig to know if the button should be enabled or not.
1089 config POWER_BUTTON_DEFAULT_ENABLE
1092 Select when the board has a power button which can optionally be
1093 disabled by the user.
1095 config POWER_BUTTON_DEFAULT_DISABLE
1098 Select when the board has a power button which can optionally be
1099 enabled by the user, e.g. when the board ships with a jumper over
1100 the power switch contacts.
1102 config POWER_BUTTON_FORCE_ENABLE
1105 Select when the board requires that the power button is always
1108 config POWER_BUTTON_FORCE_DISABLE
1111 Select when the board requires that the power button is always
1112 disabled, e.g. when it has been hardwired to ground.
1114 config POWER_BUTTON_IS_OPTIONAL
1116 default y if POWER_BUTTON_DEFAULT_ENABLE || POWER_BUTTON_DEFAULT_DISABLE
1117 default n if !(POWER_BUTTON_DEFAULT_ENABLE || POWER_BUTTON_DEFAULT_DISABLE)
1119 Internal option that controls ENABLE_POWER_BUTTON visibility.
1125 Internal option that controls whether we compile in register scripts.
1127 config MAX_REBOOT_CNT
1131 Internal option that sets the maximum number of bootblock executions allowed
1132 with the normal image enabled before assuming the normal image is defective
1133 and switching to the fallback image.
1135 config UNCOMPRESSED_RAMSTAGE
1138 config NO_XIP_EARLY_STAGES
1140 default n if ARCH_X86
1143 Identify if early stages are eXecute-In-Place(XIP).
1145 config EARLY_CBMEM_LIST
1149 Enable display of CBMEM during romstage and postcar.
1151 config RELOCATABLE_MODULES
1154 If RELOCATABLE_MODULES is selected then support is enabled for
1155 building relocatable modules in the RAM stage. Those modules can be
1156 loaded anywhere and all the relocations are handled automatically.
1158 config NO_STAGE_CACHE
1160 default y if !HAVE_ACPI_RESUME
1162 Do not save any component in stage cache for resume path. On resume,
1163 all components would be read back from CBFS again.
1165 config GENERIC_GPIO_LIB
1168 If enabled, compile the generic GPIO library. A "generic" GPIO
1169 implies configurability usually found on SoCs, particularly the
1170 ability to control internal pull resistors.
1172 config BOOTBLOCK_CUSTOM
1173 # To be selected by arch, SoC or mainboard if it does not want use the normal
1174 # src/lib/bootblock.c#main() C entry point.
1177 config C_ENVIRONMENT_BOOTBLOCK
1178 # To be selected by arch or platform if a C environment is available during the
1179 # bootblock. Normally this signifies availability of RW memory (e.g. SRAM).
1182 ###############################################################################
1183 # Set default values for symbols created before mainboards. This allows the
1184 # option to be displayed in the general menu, but the default to be loaded in
1185 # the mainboard if desired.
1186 config COMPRESS_RAMSTAGE
1187 default y if !UNCOMPRESSED_RAMSTAGE
1189 config COMPRESS_PRERAM_STAGES
1190 depends on !ARCH_X86
1193 config INCLUDE_CONFIG_FILE
1196 config BOOTSPLASH_FILE
1197 depends on BOOTSPLASH_IMAGE
1198 default "bootsplash.jpg"
1203 config HAVE_BOOTBLOCK
1207 config HAVE_VERSTAGE
1209 depends on VBOOT_SEPARATE_VERSTAGE
1212 config HAVE_ROMSTAGE
1218 depends on POSTCAR_STAGE
1221 config HAVE_RAMSTAGE
1223 default n if RAMPAYLOAD