Coreboot Options: Difference between revisions

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This is an automatically generated list of '''coreboot compile-time options'''.
{{#externalredirect: https://coreboot.org/status/kconfig-options.html }}
 
Last update: 2015/05/05 16:17:26. (r4.0-9599-g40c26df-dirty)
{| border="0" style="font-size: smaller"
|- bgcolor="#6699dd"
! align="left" | Option
! align="left" | Source
! align="left" | Format
! align="left" | Short Description
! align="left" | Description
|- bgcolor="#6699dd"
! align="left" | Menu: General setup || || || ||
|- bgcolor="#eeeeee"
| EXPERT || toplevel || bool || Expert mode ||
This allows you to select certain advanced configuration options.
 
Warning: Only enable this option if you really know what you are
doing! You have been warned!
 
||
|- bgcolor="#eeeeee"
| LOCALVERSION || toplevel || string || Local version string ||
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.
 
||
|- bgcolor="#eeeeee"
| CBFS_PREFIX || toplevel || string || CBFS prefix to use ||
Select the prefix to all files put into the image. It's "fallback"
by default, "normal" is a common alternative.
 
||
|- bgcolor="#eeeeee"
| COMMON_CBFS_SPI_WRAPPER || toplevel || bool ||  ||
Use common wrapper to interface CBFS to SPI bootrom.
 
||
|- bgcolor="#eeeeee"
| MULTIPLE_CBFS_INSTANCES || toplevel || bool || Multiple CBFS instances in the bootrom ||
Account for the firmware image containing more than one CBFS
instance. Locations of instances are known at build time and are
communicated between coreboot stages to make sure the next stage is
loaded from the appropriate instance.
 
||
|- bgcolor="#eeeeee"
| MULTIPLE_CBFS_INSTANCES || toplevel || bool || Compiler to use ||
This option allows you to select the compiler used for building
coreboot.
 
||
|- bgcolor="#eeeeee"
| COMPILER_GCC || toplevel || bool || GCC ||
Use the GNU Compiler Collection (GCC) to build coreboot.
 
For details see http://gcc.gnu.org.
 
||
|- bgcolor="#eeeeee"
| COMPILER_LLVM_CLANG || toplevel || bool || LLVM/clang ||
Use LLVM/clang to build coreboot.
 
For details see http://clang.llvm.org.
 
||
|- bgcolor="#eeeeee"
| ANY_TOOLCHAIN || toplevel || bool || Allow building with any toolchain ||
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.
 
||
|- bgcolor="#eeeeee"
| CCACHE || toplevel || bool || Use ccache to speed up (re)compilation ||
Enables the use of ccache for faster builds.
 
Requires the ccache utility in your system $PATH.
 
For details see https://ccache.samba.org.
 
||
|- bgcolor="#eeeeee"
| SCONFIG_GENPARSER || toplevel || bool || Generate SCONFIG parser using flex and bison ||
Enable this option if you are working on the sconfig device tree
parser and made changes to sconfig.l and sconfig.y.
 
Otherwise, say N.
 
||
|- bgcolor="#eeeeee"
| USE_OPTION_TABLE || toplevel || bool || Use CMOS for configuration values ||
Enable this option if coreboot shall read options from the "CMOS"
NVRAM instead of using hard-coded values.
 
||
|- bgcolor="#eeeeee"
| STATIC_OPTION_TABLE || toplevel || bool || Load default configuration values into CMOS on each boot ||
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.
 
||
|- bgcolor="#eeeeee"
| COMPRESS_RAMSTAGE || toplevel || bool || Compress ramstage with LZMA ||
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).
 
||
|- bgcolor="#eeeeee"
| INCLUDE_CONFIG_FILE || toplevel || bool || Include the coreboot .config file into the ROM image ||
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
 
||
|- bgcolor="#eeeeee"
| COLLECT_TIMESTAMPS || toplevel || bool || Create a table of timestamps collected during boot ||
Make coreboot create a table of timer-ID/timer-value pairs to
allow measuring time spent at different phases of the boot process.
 
||
|- bgcolor="#eeeeee"
| USE_BLOBS || toplevel || bool || Allow use of binary-only repository ||
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.
 
||
|- bgcolor="#eeeeee"
| COVERAGE || toplevel || bool || Code coverage support ||
Add code coverage support for coreboot. This will store code
coverage information in CBMEM for extraction from user space.
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| RELOCATABLE_MODULES || toplevel || bool || Relocatable Modules ||
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.
 
||
|- bgcolor="#eeeeee"
| RELOCATABLE_RAMSTAGE || toplevel || bool || Build the ramstage to be relocatable in 32-bit address space. ||
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.
 
||
|- bgcolor="#eeeeee"
| CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM || toplevel || bool || Cache the relocated ramstage outside of cbmem. ||
The relocated ramstage is saved in an area specified by the
by the board and/or chipset.
 
||
|- bgcolor="#eeeeee"
| SKIP_MAX_REBOOT_CNT_CLEAR || toplevel || bool || Do not clear reboot count after successful boot ||
Do not clear the reboot count immediately after successful boot.
Set to allow the payload to control normal/fallback image recovery.
 
||
|- bgcolor="#eeeeee"
| UPDATE_IMAGE || toplevel || bool || Update existing coreboot.rom image ||
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.
 
||
|- bgcolor="#eeeeee"
| GENERIC_GPIO_LIB || toplevel || bool ||  ||
If enabled, compile the generic GPIO library. A "generic" GPIO
implies configurability usually found on SoCs, particularly the
ability to control internal pull resistors.
 
||
|- bgcolor="#eeeeee"
| BOARD_ID_AUTO || toplevel || bool ||  ||
Mainboards that can read a board ID from the hardware straps
(ie. GPIO) select this configuration option.
 
||
|- bgcolor="#eeeeee"
| BOARD_ID_MANUAL || toplevel || bool || Add board ID file to CBFS ||
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.
 
||
|- bgcolor="#eeeeee"
| BOARD_ID_STRING || toplevel || string || Board ID ||
This string is placed in the 'board_id' CBFS file for indicating
board type.
 
||
|- bgcolor="#eeeeee"
| RAM_CODE_SUPPORT || toplevel || bool || Discover RAM configuration code and store it in coreboot table ||
If enabled, coreboot discovers RAM configuration (value obtained by
reading board straps) and stores it in coreboot table.
 
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Mainboard || || || ||
|- bgcolor="#eeeeee"
| || || (comment) || || see under vendor LiPPERT ||
|- bgcolor="#eeeeee"
| BOARD_ASUS_F2A85_M_DDR3_VOLT_135 || mainboard/asus/f2a85-m || bool || 1.35V ||
Set DRR3 memory voltage to 1.35V
||
|- bgcolor="#eeeeee"
| BOARD_ASUS_F2A85_M_DDR3_VOLT_150 || mainboard/asus/f2a85-m || bool || 1.50V ||
Set DRR3 memory voltage to 1.50V
||
|- bgcolor="#eeeeee"
| BOARD_ASUS_F2A85_M_DDR3_VOLT_165 || mainboard/asus/f2a85-m || bool || 1.65V ||
Set DRR3 memory voltage to 1.65V
||
|- bgcolor="#eeeeee"
| BOARD_ASUS_F2A85_M_LE_DDR3_VOLT_135 || mainboard/asus/f2a85-m_le || bool || 1.35V ||
Set DRR3 memory voltage to 1.35V
||
|- bgcolor="#eeeeee"
| BOARD_ASUS_F2A85_M_LE_DDR3_VOLT_150 || mainboard/asus/f2a85-m_le || bool || 1.50V ||
Set DRR3 memory voltage to 1.50V
||
|- bgcolor="#eeeeee"
| BOARD_ASUS_F2A85_M_LE_DDR3_VOLT_165 || mainboard/asus/f2a85-m_le || bool || 1.65V ||
Set DRR3 memory voltage to 1.65V
||
|- bgcolor="#6699dd"
! align="left" | Menu: On-Chip Device Power Down Control || || || ||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Watchdog Timer setting || || || ||
 
|- bgcolor="#6699dd"
! align="left" | Menu: IDE controller setting || || || ||
|- bgcolor="#eeeeee"
| IDE_STANDARD_COMPATIBLE || mainboard/dmp/vortex86ex || bool || Standard IDE Compatible ||
Built-in IDE controller PCI vendor/device ID is 17F3:1012, which
is not recognized by some OSes.
 
This option can change IDE controller PCI vendor/device ID to
other value for software compatibility.
 
||
|- bgcolor="#eeeeee"
| IDE_COMPATIBLE_SELECTION || mainboard/dmp/vortex86ex || hex || IDE Compatible Selection ||
IDE controller PCI vendor/device ID value setting.
 
Higher 16-bit is vendor ID, lower 16-bit is device ID.
 
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: GPIO setting || || || ||
 
|- bgcolor="#6699dd"
! align="left" | Menu: UART setting || || || ||
 
|- bgcolor="#6699dd"
! align="left" | Menu: LPT setting || || || ||
 
|- bgcolor="#eeeeee"
| UART_FOR_CONSOLE || mainboard/intel/mohonpeak || int ||  ||
The Mohon Peak board uses COM2 (2f8) for the serial console.
 
||
|- bgcolor="#eeeeee"
| SEABIOS_MALLOC_UPPERMEMORY || mainboard/intel/mohonpeak || bool ||  ||
The Avoton/Rangeley chip does not allow devices to write into the 0xe000
segment.  This means that USB/SATA devices will not work in SeaBIOS unless
we put the SeaBIOS buffer area down in the 0x9000 segment.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_PART_NUMBER || mainboard/google/nyan_blaze || string || BCT boot media ||
Which boot media to configure the BCT for.
 
||
|- bgcolor="#eeeeee"
| NYAN_BLAZE_BCT_CFG_SPI || mainboard/google/nyan_blaze || bool || SPI ||
Configure the BCT for booting from SPI.
 
||
|- bgcolor="#eeeeee"
| NYAN_BLAZE_BCT_CFG_EMMC || mainboard/google/nyan_blaze || bool || eMMC ||
Configure the BCT for booting from eMMC.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_BUS || mainboard/google/nyan_blaze || int || SPI bus with boot media ROM ||
Which SPI bus the boot media is connected to.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_CHIP_SELECT || mainboard/google/nyan_blaze || int || Chip select for SPI boot media ||
Which chip select to use for boot media.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_PART_NUMBER || mainboard/google/nyan || string || BCT boot media ||
Which boot media to configure the BCT for.
 
||
|- bgcolor="#eeeeee"
| NYAN_BCT_CFG_SPI || mainboard/google/nyan || bool || SPI ||
Configure the BCT for booting from SPI.
 
||
|- bgcolor="#eeeeee"
| NYAN_BCT_CFG_EMMC || mainboard/google/nyan || bool || eMMC ||
Configure the BCT for booting from eMMC.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_BUS || mainboard/google/nyan || int || SPI bus with boot media ROM ||
Which SPI bus the boot media is connected to.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_CHIP_SELECT || mainboard/google/nyan || int || Chip select for SPI boot media ||
Which chip select to use for boot media.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_PART_NUMBER || mainboard/google/rush_ryu || string || BCT boot media ||
Which boot media to configure the BCT for.
 
||
|- bgcolor="#eeeeee"
| RUSH_RYU_BCT_CFG_SPI || mainboard/google/rush_ryu || bool || SPI ||
Configure the BCT for booting from SPI.
 
||
|- bgcolor="#eeeeee"
| RUSH_RYU_BCT_CFG_EMMC || mainboard/google/rush_ryu || bool || eMMC ||
Configure the BCT for booting from eMMC.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_BUS || mainboard/google/rush_ryu || int || SPI bus with boot media ROM ||
Which SPI bus the boot media is connected to.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_CHIP_SELECT || mainboard/google/rush_ryu || int || Chip select for SPI boot media ||
Which chip select to use for boot media.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_PART_NUMBER || mainboard/google/nyan_big || string || BCT boot media ||
Which boot media to configure the BCT for.
 
||
|- bgcolor="#eeeeee"
| NYAN_BIG_BCT_CFG_SPI || mainboard/google/nyan_big || bool || SPI ||
Configure the BCT for booting from SPI.
 
||
|- bgcolor="#eeeeee"
| NYAN_BIG_BCT_CFG_EMMC || mainboard/google/nyan_big || bool || eMMC ||
Configure the BCT for booting from eMMC.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_BUS || mainboard/google/nyan_big || int || SPI bus with boot media ROM ||
Which SPI bus the boot media is connected to.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_CHIP_SELECT || mainboard/google/nyan_big || int || Chip select for SPI boot media ||
Which chip select to use for boot media.
 
||
|- bgcolor="#eeeeee"
| DRAM_SIZE_MB || mainboard/google/rush || int || BCT boot media ||
Which boot media to configure the BCT for.
 
||
|- bgcolor="#eeeeee"
| RUSH_BCT_CFG_SPI || mainboard/google/rush || bool || SPI ||
Configure the BCT for booting from SPI.
 
||
|- bgcolor="#eeeeee"
| RUSH_BCT_CFG_EMMC || mainboard/google/rush || bool || eMMC ||
Configure the BCT for booting from eMMC.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_BUS || mainboard/google/rush || int || SPI bus with boot media ROM ||
Which SPI bus the boot media is connected to.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_CHIP_SELECT || mainboard/google/rush || int || Chip select for SPI boot media ||
Which chip select to use for boot media.
 
||
|- bgcolor="#eeeeee"
| ENABLE_DP3_DAUGHTER_CARD_IN_J120 || mainboard/amd/lamar || bool || Use J120 as an additional graphics port ||
The PCI Express slot at J120 can be configured as an additional
DisplayPort connector using an adapter card from AMD or as a normal
PCI Express (x4) slot.
 
By default, the connector is configured as a PCI Express (x4) slot.
 
Select this option to enable the slot for use with one of AMD's
passive graphics port expander cards (only available from AMD).
 
||
|- bgcolor="#eeeeee"
| || || (comment) || || was acquired by ADLINK ||
|- bgcolor="#eeeeee"
| ONBOARD_UARTS_RS485 || mainboard/lippert/literunner-lx || bool || Switch on-board serial ports 1 & 2 to RS485 ||
If selected, the first two on-board serial ports will operate in RS485
mode instead of RS232.
 
||
|- bgcolor="#eeeeee"
| ONBOARD_IDE_SLAVE || mainboard/lippert/literunner-lx || bool || Make on-board CF socket act as Slave ||
If selected, the on-board Compact Flash card socket will act as IDE
Slave instead of Master.
 
||
|- bgcolor="#eeeeee"
| BOARD_OLD_REVISION || mainboard/lippert/hurricane-lx || bool || Board is old pre-3.0 revision ||
Look on the bottom side for a number like 406-0001-30.  The last 2
digits state the PCB revision (3.0 in this example).  For 2.0 or older
boards choose Y, for 3.0 and newer say N.
 
Old revision boards need a jumper shorting the power button to
power on automatically.  You may enable the button only after this
jumper has been removed.  New revision boards are not restricted
in this way, and always have the power button enabled.
 
||
|- bgcolor="#eeeeee"
| ONBOARD_UARTS_RS485 || mainboard/lippert/hurricane-lx || bool || Switch on-board serial ports to RS485 ||
If selected, both on-board serial ports will operate in RS485 mode
instead of RS232.
 
||
|- bgcolor="#eeeeee"
| ONBOARD_UARTS_RS485 || mainboard/lippert/spacerunner-lx || bool || Switch on-board serial ports to RS485 ||
If selected, both on-board serial ports will operate in RS485 mode
instead of RS232.
 
||
|- bgcolor="#eeeeee"
| ONBOARD_IDE_SLAVE || mainboard/lippert/spacerunner-lx || bool || Make on-board SSD act as Slave ||
If selected, the on-board SSD will act as IDE Slave instead of Master.
 
||
|- bgcolor="#eeeeee"
| ONBOARD_UARTS_RS485 || mainboard/lippert/roadrunner-lx || bool || Switch on-board serial ports to RS485 ||
If selected, both on-board serial ports will operate in RS485 mode
instead of RS232.
 
||
|- bgcolor="#eeeeee"
| BOARD_ROMSIZE_KB_16384 || mainboard || bool || ROM chip size ||
Select the size of the ROM chip you intend to flash coreboot on.
 
The build system will take care of creating a coreboot.rom file
of the matching size.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_64 || mainboard || bool || 64 KB ||
Choose this option if you have a 64 KB ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_128 || mainboard || bool || 128 KB ||
Choose this option if you have a 128 KB ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_256 || mainboard || bool || 256 KB ||
Choose this option if you have a 256 KB ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_512 || mainboard || bool || 512 KB ||
Choose this option if you have a 512 KB ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_1024 || mainboard || bool || 1024 KB (1 MB) ||
Choose this option if you have a 1024 KB (1 MB) ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_2048 || mainboard || bool || 2048 KB (2 MB) ||
Choose this option if you have a 2048 KB (2 MB) ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_4096 || mainboard || bool || 4096 KB (4 MB) ||
Choose this option if you have a 4096 KB (4 MB) ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_8192 || mainboard || bool || 8192 KB (8 MB) ||
Choose this option if you have a 8192 KB (8 MB) ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_12288 || mainboard || bool || 12288 KB (12 MB) ||
Choose this option if you have a 12288 KB (12 MB) ROM chip.
 
||
|- bgcolor="#eeeeee"
| COREBOOT_ROMSIZE_KB_16384 || mainboard || bool || 16384 KB (16 MB) ||
Choose this option if you have a 16384 KB (16 MB) ROM chip.
 
||
|- bgcolor="#eeeeee"
| ENABLE_POWER_BUTTON || mainboard || bool || Enable the power button ||
The selected mainboard can optionally have the power button tied
to ground with a jumper so that the button appears to be
constantly depressed. If this option is enabled and the jumper is
installed then the board will turn on, but turn off again after a
short timeout, usually 4 seconds.
 
Select Y here if you have removed the jumper and want to use an
actual power button. Select N if you have the jumper installed.
 
||
 
|- bgcolor="#eeeeee"
| LATE_CBMEM_INIT || arch/x86 || bool ||  ||
Enable this in chipset's Kconfig if northbridge does not implement
early get_top_of_ram() call for romstage. CBMEM tables will be
allocated late in ramstage, after PCI devices resources are known.
 
||
|- bgcolor="#6699dd"
! align="left" | Menu: ChromeOS || || || ||
|- bgcolor="#eeeeee"
| CHROMEOS || vendorcode/google/chromeos || bool || Build for ChromeOS ||
Enable ChromeOS specific features like the GPIO sub table in
the coreboot table. NOTE: Enabling this option on an unsupported
board will most likely break your build.
 
||
|- bgcolor="#eeeeee"
| VBNV_OFFSET || vendorcode/google/chromeos || hex ||  ||
CMOS offset for VbNv data. This value must match cmos.layout
in the mainboard directory, minus 14 bytes for the RTC.
 
||
|- bgcolor="#eeeeee"
| VBNV_SIZE || vendorcode/google/chromeos || hex ||  ||
CMOS storage size for VbNv data. This value must match cmos.layout
in the mainboard directory.
 
||
|- bgcolor="#eeeeee"
| CHROMEOS_VBNV_CMOS || vendorcode/google/chromeos || bool || Vboot non-volatile storage in CMOS. ||
VBNV is stored in CMOS
 
||
|- bgcolor="#eeeeee"
| CHROMEOS_VBNV_EC || vendorcode/google/chromeos || bool || Vboot non-volatile storage in EC. ||
VBNV is stored in EC
 
||
|- bgcolor="#eeeeee"
| CHROMEOS_VBNV_FLASH || vendorcode/google/chromeos || bool ||  ||
VBNV is stored in flash storage
 
||
|- bgcolor="#eeeeee"
| FLASHMAP_OFFSET || vendorcode/google/chromeos || hex || Flash Map Offset ||
Offset of flash map in firmware image
 
||
|- bgcolor="#eeeeee"
| EC_SOFTWARE_SYNC || vendorcode/google/chromeos || bool || Enable EC software sync ||
EC software sync is a mechanism where the AP helps the EC verify its
firmware similar to how vboot verifies the main system firmware. This
option selects whether depthcharge should support EC software sync.
 
||
|- bgcolor="#eeeeee"
| VBOOT_EC_SLOW_UPDATE || vendorcode/google/chromeos || bool || EC is slow to update ||
Whether the EC (or PD) is slow to update and needs to display a
screen that informs the user the update is happening.
 
||
|- bgcolor="#eeeeee"
| VBOOT_OPROM_MATTERS || vendorcode/google/chromeos || bool || Video option ROM matters ||
Whether the video option ROM has run matters on this platform.
 
||
|- bgcolor="#eeeeee"
| VIRTUAL_DEV_SWITCH || vendorcode/google/chromeos || bool || Virtual developer switch support ||
Whether this platform has a virtual developer switch.
 
||
|- bgcolor="#eeeeee"
| VBOOT_VERIFY_FIRMWARE || vendorcode/google/chromeos || bool || Verify firmware with vboot. ||
Enabling VBOOT_VERIFY_FIRMWARE will use vboot to verify the components
of the firmware (stages, payload, etc).
 
||
|- bgcolor="#eeeeee"
| NO_TPM_RESUME || vendorcode/google/chromeos || bool ||  ||
On some boards the TPM stays powered up in S3. On those
boards, booting Windows will break if the TPM resume command
is sent during an S3 resume.
 
||
|- bgcolor="#eeeeee"
| PHYSICAL_REC_SWITCH || vendorcode/google/chromeos || bool || Physical recovery switch is present ||
Whether this platform has a physical recovery switch
 
||
|- bgcolor="#eeeeee"
| WIPEOUT_SUPPORTED || vendorcode/google/chromeos || bool || User is able to request factory reset ||
When this option is enabled, the firmware provides the ability to
signal the application the need for factory reset (a.k.a. wipe
out) of the device
 
||
|- bgcolor="#eeeeee"
| VBOOT_STARTS_IN_BOOTBLOCK || vendorcode/google/chromeos/vboot2 || bool ||  ||
Firmware verification happens during or at the end of bootblock.
 
||
|- bgcolor="#eeeeee"
| VBOOT_STARTS_IN_ROMSTAGE || vendorcode/google/chromeos/vboot2 || bool ||  ||
Firmware verification happens during or at the end of romstage.
 
||
|- bgcolor="#eeeeee"
| VBOOT2_MOCK_SECDATA || vendorcode/google/chromeos/vboot2 || bool || Mock secdata for firmware verification ||
Enabling VBOOT2_MOCK_SECDATA will mock secdata for the firmware
verification to avoid access to a secdata storage (typically TPM).
All operations for a secdata storage will be successful. This option
can be used during development when a TPM is not present or broken.
THIS SHOULD NOT BE LEFT ON FOR PRODUCTION DEVICES.
 
||
|- bgcolor="#eeeeee"
| VBOOT_DISABLE_DEV_ON_RECOVERY || vendorcode/google/chromeos/vboot2 || bool || Disable dev mode on recovery requests ||
When this option is enabled, the Chrome OS device leaves the
developer mode as soon as recovery request is detected. This is
handy on embedded devices with limited input capabilities.
 
||
|- bgcolor="#eeeeee"
| RETURN_FROM_VERSTAGE || vendorcode/google/chromeos/vboot2 || bool ||  ||
If this is set, the verstage returns back to the calling stage instead
of exiting to the succeeding stage so that the verstage space can be
reused by the succeeding stage. This is useful if a ram space is too
small to fit both the verstage and the succeeding stage.
 
||
|- bgcolor="#eeeeee"
| VBOOT_ROMSTAGE_INDEX || vendorcode/google/chromeos/vboot2 || hex || Romstage component index ||
This is the index of the romstage component in the verified
firmware block.
 
||
|- bgcolor="#eeeeee"
| VBOOT_RAMSTAGE_INDEX || vendorcode/google/chromeos/vboot2 || hex || Ramstage component index ||
This is the index of the ramstage component in the verified
firmware block.
 
||
|- bgcolor="#eeeeee"
| VBOOT_REFCODE_INDEX || vendorcode/google/chromeos/vboot2 || hex || Reference code firmware index ||
This is the index of the reference code component in the verified
firmware block.
 
||
|- bgcolor="#eeeeee"
| VBOOT_BOOT_LOADER_INDEX || vendorcode/google/chromeos/vboot2 || hex || Bootloader component index ||
This is the index of the bootloader component in the verified
firmware block.
 
||
 
||
|- bgcolor="#eeeeee"
| VIRTUAL_DEV_SWITCH || vendorcode/google/chromeos || bool ||  ||
Whether this platform has a virtual developer switch.
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: AMD Platform Initialization || || || ||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_PATH_DEFAULT || vendorcode/amd/pi/00630F01 || string ||  ||
The default binary file name to use for AMD platform initialization.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_FILE_DEFAULT || vendorcode/amd/pi/00630F01 || string ||  ||
The default binary file name to use for AMD platform initialization.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_LOCATION_DEFAULT || vendorcode/amd/pi/00630F01 || hex ||  ||
The default ROM address at which to store the binary Platform
Initialization code.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_PATH_DEFAULT || vendorcode/amd/pi/00730F01 || string ||  ||
The default binary file name to use for AMD platform initialization.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_FILE_DEFAULT || vendorcode/amd/pi/00730F01 || string ||  ||
The default binary file name to use for AMD platform initialization.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_LOCATION_DEFAULT || vendorcode/amd/pi/00730F01 || hex ||  ||
The default ROM address at which to store the binary Platform
Initialization code.
 
||
|- bgcolor="#eeeeee"
| None || vendorcode/amd || None || AGESA source ||
Select the method for including the AMD Platform Initialization
code into coreboot.  Platform Initialization code is required for
all AMD processors.
 
||
|- bgcolor="#eeeeee"
| CPU_AMD_AGESA_BINARY_PI || vendorcode/amd || bool || binary PI ||
Use a binary PI package.  Generally, these will be stored in the
"3rdparty" directory.  For some processors, these must be obtained
directly from AMD Embedded Processors Group
(http://www.amdcom/embedded).
 
||
|- bgcolor="#eeeeee"
| CPU_AMD_AGESA_OPENSOURCE || vendorcode/amd || bool || open-source AGESA ||
Build the PI package ("AGESA") from source code in the "vendorcode"
directory.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_PATH || vendorcode/amd || string || AGESA PI directory path ||
Specify where to find the AGESA headers and binary file
for AMD platform initialization.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_FILE || vendorcode/amd || string || AGESA PI binary file name ||
Specify the binary file to use for AMD platform initialization.
 
||
|- bgcolor="#eeeeee"
| AGESA_BINARY_PI_LOCATION || vendorcode/amd || string || AGESA PI binary address in ROM ||
Specify the ROM address at which to store the binary Platform
Initialization code.
 
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Chipset || || || ||
|- bgcolor="#eeeeee"
| || || (comment) || || CPU ||
|- bgcolor="#eeeeee"
| LAPIC_MONOTONIC_TIMER || cpu/x86 || bool ||  ||
Expose monotonic time using the local apic.
 
||
|- bgcolor="#eeeeee"
| TSC_CONSTANT_RATE || cpu/x86 || bool ||  ||
This option asserts that the TSC ticks at a known constant rate.
Therefore, no TSC calibration is required.
 
||
|- bgcolor="#eeeeee"
| TSC_MONOTONIC_TIMER || cpu/x86 || bool ||  ||
Expose monotonic time using the TSC.
 
||
|- bgcolor="#eeeeee"
| TSC_SYNC_LFENCE || cpu/x86 || bool ||  ||
The CPU driver should select this if the CPU needs
to execute an lfence instruction in order to synchronize
rdtsc. This is true for all modern AMD CPUs.
 
||
|- bgcolor="#eeeeee"
| TSC_SYNC_MFENCE || cpu/x86 || bool ||  ||
The CPU driver should select this if the CPU needs
to execute an mfence instruction in order to synchronize
rdtsc. This is true for all modern Intel CPUs.
 
||
|- bgcolor="#eeeeee"
| SMM_MODULES || cpu/x86 || bool ||  ||
If SMM_MODULES is selected then SMM handlers are built as modules.
A SMM stub along with a SMM loader/relocator. All the handlers are
written in C with stub being the only assembly.
 
||
|- bgcolor="#eeeeee"
| SMM_MODULE_HEAP_SIZE || cpu/x86 || hex ||  ||
This option determines the size of the heap within the SMM handler
modules.
 
||
|- bgcolor="#eeeeee"
| X86_AMD_FIXED_MTRRS || cpu/x86 || bool ||  ||
This option informs the MTRR code to use the RdMem and WrMem fields
in the fixed MTRR MSRs.
 
||
|- bgcolor="#eeeeee"
| PLATFORM_USES_FSP1_0 || cpu/x86 || bool ||  ||
Selected for Intel processors/platform combinations that use the
Intel Firmware Support Package (FSP) 1.0 for initialization.
 
||
|- bgcolor="#eeeeee"
| PARALLEL_MP || cpu/x86 || bool ||  ||
This option uses common MP infrastructure for bringing up APs
in parallel. It additionally provides a more flexible mechanism
for sequencing the steps of bringing up the APs.
 
||
|- bgcolor="#eeeeee"
| BACKUP_DEFAULT_SMM_REGION || cpu/x86 || bool ||  ||
The CPU support will select this option if the default SMM region
needs to be backed up for suspend/resume purposes.
 
||
|- bgcolor="#eeeeee"
| MIRROR_PAYLOAD_TO_RAM_BEFORE_LOADING || cpu/x86 || bool ||  ||
On certain platforms a boot speed gain can be realized if mirroring
the payload data stored in non-volatile storage. On x86 systems the
payload would typically live in a memory-mapped SPI part. Copying
the SPI contents to RAM before performing the load can speed up
the boot process.
 
||
|- bgcolor="#eeeeee"
| BOOT_MEDIA_SPI_BUS || cpu/x86 || int ||  ||
Most x86 systems which boot from SPI flash boot using bus 0.
 
||
||
|- bgcolor="#eeeeee"
| RESET_ON_INVALID_RAMSTAGE_CACHE || cpu/intel/haswell || bool || Reset the system on S3 wake when ramstage cache invalid. ||
The haswell romstage code caches the loaded ramstage program
in SMM space. On S3 wake the romstage will copy over a fresh
ramstage that was cached in the SMM space. This option determines
the action to take when the ramstage cache is invalid. If selected
the system will reset otherwise the ramstage will be reloaded from
cbfs.
 
||
|- bgcolor="#eeeeee"
| MONOTONIC_TIMER_MSR || cpu/intel/haswell || bool ||  ||
Provide a monotonic timer using the 24MHz MSR counter.
 
||
|- bgcolor="#eeeeee"
| CPU_INTEL_FIRMWARE_INTERFACE_TABLE || cpu/intel/fit || None ||  ||
This option selects building a Firmware Interface Table (FIT).
 
||
|- bgcolor="#eeeeee"
| CPU_INTEL_NUM_FIT_ENTRIES || cpu/intel/fit || int ||  ||
This option selects the number of empty entries in the FIT table.
 
 
||
||
|- bgcolor="#eeeeee"
| CPU_INTEL_TURBO_NOT_PACKAGE_SCOPED || cpu/intel/turbo || None ||  ||
This option indicates that the turbo mode setting is not package
scoped. i.e. enable_turbo() needs to be called on not just the bsp
 
||
 
||
||
|- bgcolor="#eeeeee"
| GEODE_VSA_FILE || cpu/amd/geode_gx2 || bool || Add a VSA image ||
Select this option if you have an AMD Geode GX2 vsa that you would
like to add to your ROM.
 
You will be able to specify the location and file name of the
image later.
 
||
|- bgcolor="#eeeeee"
| VSA_FILENAME || cpu/amd/geode_gx2 || string || AMD Geode GX2 VSA path and filename ||
The path and filename of the file to use as VSA.
 
||
|- bgcolor="#eeeeee"
| GEODE_VSA_FILE || cpu/amd/geode_lx || bool || Add a VSA image ||
Select this option if you have an AMD Geode LX vsa that you would
like to add to your ROM.
 
You will be able to specify the location and file name of the
image later.
 
||
|- bgcolor="#eeeeee"
| VSA_FILENAME || cpu/amd/geode_lx || string || AMD Geode LX VSA path and filename ||
The path and filename of the file to use as VSA.
 
||
|- bgcolor="#eeeeee"
| XIP_ROM_SIZE || cpu/amd/agesa || hex ||  ||
Overwride the default write through caching size as 1M Bytes.
On some AMD platforms, one socket supports 2 or more kinds of
processor family, compiling several CPU families agesa code
will increase the romstage size.
In order to execute romstage in place on the flash ROM,
more space is required to be set as write through caching.
 
||
|- bgcolor="#eeeeee"
| REDIRECT_IDS_HDT_CONSOLE_TO_SERIAL || cpu/amd/agesa/family10 || bool || Redirect AGESA IDS_HDT_CONSOLE to serial console ||
This Option allows you to redirect the AMD AGESA IDS_HDT_CONSOLE debug information to the serial console.
 
Warning: Only enable this option when debuging or tracing AMD AGESA code.
 
||
|- bgcolor="#eeeeee"
| CPU_AMD_SOCKET_G34 || cpu/amd/agesa/family15 || bool ||  ||
AMD G34 Socket
 
||
|- bgcolor="#eeeeee"
| CPU_AMD_SOCKET_C32 || cpu/amd/agesa/family15 || bool ||  ||
AMD C32 Socket
 
||
|- bgcolor="#eeeeee"
| CPU_AMD_SOCKET_AM3R2 || cpu/amd/agesa/family15 || bool ||  ||
AMD AM3r2 Socket
 
||
|- bgcolor="#eeeeee"
| REDIRECT_IDS_HDT_CONSOLE_TO_SERIAL || cpu/amd/agesa/family15 || bool || Redirect AGESA IDS_HDT_CONSOLE to serial console ||
This Option allows you to redirect the AMD AGESA IDS_HDT_CONSOLE debug information to the serial console.
 
Warning: Only enable this option when debuging or tracing AMD AGESA code.
 
||
|- bgcolor="#eeeeee"
| FORCE_AM1_SOCKET_SUPPORT || cpu/amd/agesa/family16kb || bool ||  ||
Force AGESA to ignore package type mismatch between CPU and northbridge
in memory code. This enables Socket AM1 support with current AGESA
version for Kabini platform.
Enable this option only if you have Socket AM1 board.
Note that the AGESA release shipped with coreboot does not officially
support the AM1 socket. Selecting this option might damage your hardware.
 
||
|- bgcolor="#eeeeee"
| XIP_ROM_SIZE || cpu/amd/pi || hex ||  ||
Overwride the default write through caching size as 1M Bytes.
On some AMD platforms, one socket supports 2 or more kinds of
processor family, compiling several CPU families agesa code
will increase the romstage size.
In order to execute romstage in place on the flash ROM,
more space is required to be set as write through caching.
 
||
|- bgcolor="#eeeeee"
| SMP || cpu || bool ||  ||
This option is used to enable certain functions to make coreboot
work correctly on symmetric multi processor (SMP) systems.
 
||
|- bgcolor="#eeeeee"
| AP_SIPI_VECTOR || cpu || hex ||  ||
This must equal address of ap_sipi_vector from bootblock build.
 
||
|- bgcolor="#eeeeee"
| MMX || cpu || bool ||  ||
Select MMX in your socket or model Kconfig if your CPU has MMX
streaming SIMD instructions. ROMCC can build more efficient
code if it can spill to MMX registers.
 
||
|- bgcolor="#eeeeee"
| SSE || cpu || bool ||  ||
Select SSE in your socket or model Kconfig if your CPU has SSE
streaming SIMD instructions. ROMCC can build more efficient
code if it can spill to SSE (aka XMM) registers.
 
||
|- bgcolor="#eeeeee"
| SSE2 || cpu || bool ||  ||
Select SSE2 in your socket or model Kconfig if your CPU has SSE2
streaming SIMD instructions. Some parts of coreboot can be built
with more efficient code if SSE2 instructions are available.
 
||
|- bgcolor="#eeeeee"
| CPU_MICROCODE_CBFS_GENERATE || cpu || bool || Generate from tree ||
Select this option if you want microcode updates to be assembled when
building coreboot and included in the final image as a separate CBFS
file. Microcode will not be hard-coded into ramstage.
 
The microcode file may be removed from the ROM image at a later
time with cbfstool, if desired.
 
If unsure, select this option.
 
||
|- bgcolor="#eeeeee"
| CPU_MICROCODE_CBFS_EXTERNAL || cpu || bool || Include external microcode file ||
Select this option if you want to include an external file containing
the CPU microcode. This will be included as a separate file in CBFS.
A word of caution: only select this option if you are sure the
microcode that you have is newer than the microcode shipping with
coreboot.
 
The microcode file may be removed from the ROM image at a later
time with cbfstool, if desired.
 
If unsure, select "Generate from tree"
 
||
|- bgcolor="#eeeeee"
| CPU_MICROCODE_CBFS_NONE || cpu || bool || Do not include microcode updates ||
Select this option if you do not want CPU microcode included in CBFS.
Note that for some CPUs, the microcode is hard-coded into the source
tree and is not loaded from CBFS. In this case, microcode will still
be updated. There is a push to move all microcode to CBFS, but this
change is not implemented for all CPUs.
 
This option currently applies to:
- Intel SandyBridge/IvyBridge
- VIA Nano
 
Microcode may be added to the ROM image at a later time with cbfstool,
if desired.
 
If unsure, select "Generate from tree"
 
The GOOD:
Microcode updates intend to solve issues that have been discovered
after CPU production. The expected effect is that systems work as
intended with the updated microcode, but we have also seen cases where
issues were solved by not applying microcode updates.
 
The BAD:
Note that some operating system include these same microcode patches,
so you may need to also disable microcode updates in your operating
system for this option to have an effect.
 
The UGLY:
A word of CAUTION: some CPUs depend on microcode updates to function
correctly. Not updating the microcode may leave the CPU operating at
less than optimal performance, or may cause outright hangups.
There are CPUs where coreboot cannot properly initialize the CPU
without microcode updates
For example, if running with the factory microcode, some Intel
SandyBridge CPUs may hang when enabling CAR, or some VIA Nano CPUs
will hang when changing the frequency.
 
Make sure you have a way of flashing the ROM externally before
selecting this option.
 
||
|- bgcolor="#eeeeee"
| CPU_MICROCODE_FILE || cpu || string || Path and filename of CPU microcode ||
The path and filename of the file containing the CPU microcode.
 
||
||
|- bgcolor="#eeeeee"
| || || (comment) || || Northbridge ||
|- bgcolor="#eeeeee"
| VGA_BIOS_ID || northbridge/intel/fsp_sandybridge || string ||  ||
This is the default PCI ID for the sandybridge/ivybridge graphics
devices.  This string names the vbios ROM in cbfs.  The following
PCI IDs will be remapped to load this ROM:
0x80860102, 0x8086010a, 0x80860112, 0x80860116
0x80860122, 0x80860126, 0x80860166
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || northbridge/intel/fsp_sandybridge || hex || Size of CBFS filesystem in ROM ||
On Sandybridge and Ivybridge systems the firmware image may
have to store a lot more than just coreboot, including:
- a firmware descriptor
- Intel Management Engine firmware
This option specifies the maximum size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| FSP_FILE || northbridge/intel/fsp_sandybridge/fsp || string ||  ||
The path and filename of the Intel FSP binary for this platform.
 
||
|- bgcolor="#eeeeee"
| FSP_LOC || northbridge/intel/fsp_sandybridge/fsp || hex || Intel FSP Binary location in CBFS ||
The location in CBFS that the FSP is located. This must match the
value that is set in the FSP binary.  If the FSP needs to be moved,
rebase the FSP with the Intel's BCT (tool).
 
The Ivy Bridge Processor/Panther Point FSP is built with a preferred
base address of 0xFFF80000
 
||
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || northbridge/intel/nehalem || hex || Size of CBFS filesystem in ROM ||
On Nehalem systems the firmware image has to
store a lot more than just coreboot, including:
- a firmware descriptor
- Intel Management Engine firmware
This option allows to limit the size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || northbridge/intel/gm45 || hex || Size of CBFS filesystem in ROM ||
On GM45 systems the firmware image may
store a lot more than just coreboot, including:
- a firmware descriptor
- Intel Management Engine firmware
This option allows to limit the size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| SDRAMPWR_4DIMM || northbridge/intel/i440bx || bool ||  ||
This option affects how the SDRAMC register is programmed.
Memory clock signals will not be routed properly if this option
is set wrong.
 
If your board has 4 DIMM slots, you must use select this option, in
your Kconfig file of the board. On boards with 3 DIMM slots,
do _not_ select this option.
 
 
||
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_SIZE || northbridge/intel/haswell || hex ||  ||
The size of the cache-as-ram region required during bootblock
and/or romstage. Note DCACHE_RAM_SIZE and DCACHE_RAM_MRC_VAR_SIZE
must add up to a power of 2.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_MRC_VAR_SIZE || northbridge/intel/haswell || hex ||  ||
The amount of cache-as-ram region required by the reference code.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_ROMSTAGE_STACK_SIZE || northbridge/intel/haswell || hex ||  ||
The amount of anticipated stack usage from the data cache
during pre-ram rom stage execution.
 
||
|- bgcolor="#eeeeee"
| HAVE_MRC || northbridge/intel/haswell || bool || Add a System Agent binary ||
Select this option to add a System Agent binary to
the resulting coreboot image.
 
Note: Without this binary coreboot will not work
 
||
|- bgcolor="#eeeeee"
| MRC_FILE || northbridge/intel/haswell || string || Intel System Agent path and filename ||
The path and filename of the file to use as System Agent
binary.
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || northbridge/intel/haswell || hex || Size of CBFS filesystem in ROM ||
On Haswell systems the firmware image has to store a lot more
than just coreboot, including:
- a firmware descriptor
- Intel Management Engine firmware
- MRC cache information
This option allows to limit the size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| PRE_GRAPHICS_DELAY || northbridge/intel/haswell || int || Graphics initialization delay in ms ||
On some systems, coreboot boots so fast that connected monitors
(mostly TVs) won't be able to wake up fast enough to talk to the
VBIOS. On those systems we need to wait for a bit before executing
the VBIOS.
 
||
|- bgcolor="#eeeeee"
| HAVE_MRC || northbridge/intel/sandybridge || bool || Add a System Agent binary ||
Select this option to add a System Agent binary to
the resulting coreboot image.
 
Note: Without this binary coreboot will not work
 
||
|- bgcolor="#eeeeee"
| MRC_FILE || northbridge/intel/sandybridge || string || Intel System Agent path and filename ||
The path and filename of the file to use as System Agent
binary.
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || northbridge/intel/sandybridge || hex || Size of CBFS filesystem in ROM ||
On Sandybridge and Ivybridge systems the firmware image has to
store a lot more than just coreboot, including:
- a firmware descriptor
- Intel Management Engine firmware
- MRC cache information
This option allows to limit the size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| OVERRIDE_CLOCK_DISABLE || northbridge/intel/i945 || bool ||  ||
Usually system firmware turns off system memory clock
signals to unused SO-DIMM slots to reduce EMI and power
consumption.
However, some boards do not like unused clock signals to
be disabled.
 
||
|- bgcolor="#eeeeee"
| MAXIMUM_SUPPORTED_FREQUENCY || northbridge/intel/i945 || int ||  ||
If non-zero, this designates the maximum DDR frequency
the board supports, despite what the chipset should be
capable of.
 
||
|- bgcolor="#eeeeee"
| CHECK_SLFRCS_ON_RESUME || northbridge/intel/i945 || int ||  ||
On some boards it may be neccessary to hard reset early
during resume from S3 if the SLFRCS register indicates that
a memory channel is not guaranteed to be in self-refresh.
On other boards the check always creates a false positive,
effectively making it impossible to resume.
 
||
|- bgcolor="#eeeeee"
| SET_TSEG_1MB || northbridge/intel/fsp_rangeley || bool || 1 MB ||
Set the TSEG area to 1 MB.
 
||
|- bgcolor="#eeeeee"
| SET_TSEG_2MB || northbridge/intel/fsp_rangeley || bool || 2 MB ||
Set the TSEG area to 2 MB.
 
||
|- bgcolor="#eeeeee"
| SET_TSEG_4MB || northbridge/intel/fsp_rangeley || bool || 4 MB ||
Set the TSEG area to 4 MB.
 
||
|- bgcolor="#eeeeee"
| SET_TSEG_8MB || northbridge/intel/fsp_rangeley || bool || 8 MB ||
Set the TSEG area to 8 MB.
||
|- bgcolor="#eeeeee"
| FSP_FILE || northbridge/intel/fsp_rangeley/fsp || string ||  ||
The path and filename of the Intel FSP binary for this platform.
 
||
|- bgcolor="#eeeeee"
| FSP_LOC || northbridge/intel/fsp_rangeley/fsp || hex ||  ||
The location in CBFS that the FSP is located. This must match the
value that is set in the FSP binary.  If the FSP needs to be moved,
rebase the FSP with Intel's BCT (tool).
 
The Rangeley FSP is built with a preferred base address of 0xFFF80000
 
||
|- bgcolor="#eeeeee"
| REDIRECT_NBCIMX_TRACE_TO_SERIAL || northbridge/amd/cimx/rd890 || bool || Redirect AMD Northbridge CIMX Trace to serial console ||
This Option allows you to redirect the AMD Northbridge CIMX
Trace debug information to the serial console.
 
Warning: Only enable this option when debuging or tracing AMD CIMX code.
 
||
|- bgcolor="#eeeeee"
| VGA_BIOS_ID || northbridge/amd/pi/00630F01 || string ||  ||
The default VGA BIOS PCI vendor/device ID should be set to the
result of the map_oprom_vendev() function in northbridge.c.
 
||
|- bgcolor="#eeeeee"
| VGA_BIOS_ID || northbridge/amd/pi/00730F01 || string ||  ||
The default VGA BIOS PCI vendor/device ID should be set to the
result of the map_oprom_vendev() function in northbridge.c.
 
||
|- bgcolor="#eeeeee"
| VGA_BIOS_ID || northbridge/amd/agesa/family16kb || string ||  ||
The default VGA BIOS PCI vendor/device ID should be set to the
result of the map_oprom_vendev() function in northbridge.c.
 
||
|- bgcolor="#eeeeee"
| SVI_HIGH_FREQ || northbridge/amd/amdfam10 || bool ||  ||
Select this for boards with a Voltage Regulator able to operate
at 3.4 MHz in SVI mode. Ignored unless the AMD CPU is rev C3.
 
||
|- bgcolor="#6699dd"
! align="left" | Menu: HyperTransport setup || || || ||
|- bgcolor="#eeeeee"
| SVI_HIGH_FREQ || northbridge/amd/amdfam10 || bool || HyperTransport downlink width ||
This option sets the maximum permissible HyperTransport
downlink width.
 
Use of this option will only limit the autodetected HT width.
It will not (and cannot) increase the width beyond the autodetected
limits.
 
This is primarily used to work around poorly designed or laid out HT
traces on certain motherboards.
 
||
|- bgcolor="#eeeeee"
| LIMIT_HT_DOWN_WIDTH_16 || northbridge/amd/amdfam10 || bool || HyperTransport uplink width ||
This option sets the maximum permissible HyperTransport
uplink width.
 
Use of this option will only limit the autodetected HT width.
It will not (and cannot) increase the width beyond the autodetected
limits.
 
This is primarily used to work around poorly designed or laid out HT
traces on certain motherboards.
 
||
 
|- bgcolor="#eeeeee"
| || || (comment) || || Southbridge ||
|- bgcolor="#eeeeee"
| HAVE_CMC || southbridge/intel/sch || bool || Add a CMC state machine binary ||
Select this option to add a CMC state machine binary to
the resulting coreboot image.
 
Note: Without this binary coreboot will not work
 
||
|- bgcolor="#eeeeee"
| CMC_FILE || southbridge/intel/sch || string || Intel CMC path and filename ||
The path and filename of the file to use as CMC state machine
binary.
 
||
|- bgcolor="#eeeeee"
| SERIRQ_CONTINUOUS_MODE || southbridge/intel/bd82x6x || bool ||  ||
If you set this option to y, the serial IRQ machine will be
operated in continuous mode.
 
||
|- bgcolor="#eeeeee"
| BUILD_WITH_FAKE_IFD || southbridge/intel/bd82x6x || bool || Build with a fake IFD ||
If you don't have an Intel Firmware Descriptor (ifd.bin) for your
board, you can select this option and coreboot will build without it.
Though, the resulting coreboot.rom will not contain all parts required
to get coreboot running on your board. You can however write only the
BIOS section to your board's flash ROM and keep the other sections
untouched. Unfortunately the current version of flashrom doesn't
support this yet. But there is a patch pending [1].
 
WARNING: Never write a complete coreboot.rom to your flash ROM if it
was built with a fake IFD. It just won't work.
 
[1] http://www.flashrom.org/pipermail/flashrom/2013-June/011083.html
 
||
|- bgcolor="#eeeeee"
| HAVE_GBE_BIN || southbridge/intel/bd82x6x || bool || Add gigabit ethernet firmware ||
The integrated gigabit ethernet controller needs a firmware file.
Select this if you are going to use the PCH integrated controller
and have the firmware.
 
||
|- bgcolor="#eeeeee"
| HAVE_ME_BIN || southbridge/intel/bd82x6x || bool || Add Intel Management Engine firmware ||
The Intel processor in the selected system requires a special firmware
for an integrated controller called Management Engine (ME). The ME
firmware might be provided in coreboot's 3rdparty repository. If
not and if you don't have the firmware elsewhere, you can still
build coreboot without it. In this case however, you'll have to make
sure that you don't overwrite your ME firmware on your flash ROM.
 
||
|- bgcolor="#eeeeee"
| LOCK_MANAGEMENT_ENGINE || southbridge/intel/bd82x6x || bool || Lock Management Engine section ||
The Intel Management Engine supports preventing write accesses
from the host to the Management Engine section in the firmware
descriptor. If the ME section is locked, it can only be overwritten
with an external SPI flash programmer. You will want this if you
want to increase security of your ROM image once you are sure
that the ME firmware is no longer going to change.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| LOCK_SPI_ON_RESUME || southbridge/intel/bd82x6x || bool || Lock all flash ROM sections on S3 resume ||
If the flash ROM shall be protected against write accesses from the
operating system (OS), the locking procedure has to be repeated after
each resume from S3. Select this if you never want to update the flash
ROM from within your OS. Notice: Even with this option, the write lock
has still to be enabled on the normal boot path (e.g. by the payload).
 
||
|- bgcolor="#eeeeee"
| INTEL_LYNXPOINT_LP || southbridge/intel/lynxpoint || bool ||  ||
Set this option to y for Lynxpont LP (Haswell ULT).
 
||
|- bgcolor="#eeeeee"
| SERIRQ_CONTINUOUS_MODE || southbridge/intel/lynxpoint || bool ||  ||
If you set this option to y, the serial IRQ machine will be
operated in continuous mode.
 
||
|- bgcolor="#eeeeee"
| BUILD_WITH_FAKE_IFD || southbridge/intel/lynxpoint || bool || Build with a fake IFD ||
If you don't have an Intel Firmware Descriptor (ifd.bin) for your
board, you can select this option and coreboot will build without it.
Though, the resulting coreboot.rom will not contain all parts required
to get coreboot running on your board. You can however write only the
BIOS section to your board's flash ROM and keep the other sections
untouched. Unfortunately the current version of flashrom doesn't
support this yet. But there is a patch pending [1].
 
WARNING: Never write a complete coreboot.rom to your flash ROM if it
was built with a fake IFD. It just won't work.
 
[1] http://www.flashrom.org/pipermail/flashrom/2013-June/011083.html
 
||
|- bgcolor="#eeeeee"
| HAVE_ME_BIN || southbridge/intel/lynxpoint || bool || Add Intel Management Engine firmware ||
The Intel processor in the selected system requires a special firmware
for an integrated controller called Management Engine (ME). The ME
firmware might be provided in coreboot's 3rdparty repository. If
not and if you don't have the firmware elsewhere, you can still
build coreboot without it. In this case however, you'll have to make
sure that you don't overwrite your ME firmware on your flash ROM.
 
||
|- bgcolor="#eeeeee"
| ME_MBP_CLEAR_LATE || southbridge/intel/lynxpoint || bool || Defer wait for ME MBP Cleared ||
If you set this option to y, the Management Engine driver
will defer waiting for the MBP Cleared indicator until the
finalize step.  This can speed up boot time if the ME takes
a long time to indicate this status.
 
||
|- bgcolor="#eeeeee"
| FINALIZE_USB_ROUTE_XHCI || southbridge/intel/lynxpoint || bool || Route all ports to XHCI controller in finalize step ||
If you set this option to y, the USB ports will be routed
to the XHCI controller during the finalize SMM callback.
 
||
|- bgcolor="#eeeeee"
| LOCK_MANAGEMENT_ENGINE || southbridge/intel/lynxpoint || bool || Lock Management Engine section ||
The Intel Management Engine supports preventing write accesses
from the host to the Management Engine section in the firmware
descriptor. If the ME section is locked, it can only be overwritten
with an external SPI flash programmer. You will want this if you
want to increase security of your ROM image once you are sure
that the ME firmware is no longer going to change.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| SERIRQ_CONTINUOUS_MODE || southbridge/intel/fsp_bd82x6x || bool ||  ||
If you set this option to y, the serial IRQ machine will be
operated in continuous mode.
 
||
|- bgcolor="#eeeeee"
| INCLUDE_ME || southbridge/intel/fsp_bd82x6x || bool ||  ||
Include the me.bin and descriptor.bin for Intel PCH.
This is usually required for the PCH.
 
||
|- bgcolor="#eeeeee"
| ME_PATH || southbridge/intel/fsp_bd82x6x || string ||  ||
The path of the ME and Descriptor files.
 
||
|- bgcolor="#eeeeee"
| LOCK_MANAGEMENT_ENGINE || southbridge/intel/fsp_bd82x6x || bool || Lock Management Engine section ||
The Intel Management Engine supports preventing write accesses
from the host to the Management Engine section in the firmware
descriptor. If the ME section is locked, it can only be overwritten
with an external SPI flash programmer. You will want this if you
want to increase security of your ROM image once you are sure
that the ME firmware is no longer going to change.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| SERIRQ_CONTINUOUS_MODE || southbridge/intel/ibexpeak || bool ||  ||
If you set this option to y, the serial IRQ machine will be
operated in continuous mode.
 
||
|- bgcolor="#eeeeee"
| BUILD_WITH_FAKE_IFD || southbridge/intel/ibexpeak || bool || Build with a fake IFD ||
If you don't have an Intel Firmware Descriptor (ifd.bin) for your
board, you can select this option and coreboot will build without it.
Though, the resulting coreboot.rom will not contain all parts required
to get coreboot running on your board. You can however write only the
BIOS section to your board's flash ROM and keep the other sections
untouched. Unfortunately the current version of flashrom doesn't
support this yet. But there is a patch pending [1].
 
WARNING: Never write a complete coreboot.rom to your flash ROM if it
was built with a fake IFD. It just won't work.
 
[1] http://www.flashrom.org/pipermail/flashrom/2013-June/011083.html
 
 
||
|- bgcolor="#eeeeee"
| HAVE_ME_BIN || southbridge/intel/ibexpeak || bool || Add Intel Management Engine firmware ||
The Intel processor in the selected system requires a special firmware
for an integrated controller called Management Engine (ME). The ME
firmware might be provided in coreboot's 3rdparty repository. If
not and if you don't have the firmware elsewhere, you can still
build coreboot without it. In this case however, you'll have to make
sure that you don't overwrite your ME firmware on your flash ROM.
 
||
|- bgcolor="#eeeeee"
| LOCK_MANAGEMENT_ENGINE || southbridge/intel/ibexpeak || bool || Lock Management Engine section ||
The Intel Management Engine supports preventing write accesses
from the host to the Management Engine section in the firmware
descriptor. If the ME section is locked, it can only be overwritten
with an external SPI flash programmer. You will want this if you
want to increase security of your ROM image once you are sure
that the ME firmware is no longer going to change.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| SERIRQ_CONTINUOUS_MODE || southbridge/intel/fsp_rangeley || bool ||  ||
If you set this option to y, the serial IRQ machine will be
operated in continuous mode.
 
||
|- bgcolor="#eeeeee"
| INCLUDE_ME || southbridge/intel/fsp_rangeley || bool || Add Intel descriptor.bin file ||
Include the descriptor.bin for rangeley.
 
||
|- bgcolor="#eeeeee"
| ME_PATH || southbridge/intel/fsp_rangeley || string || Path to descriptor.bin file ||
The path of the descriptor.bin file.
 
||
|- bgcolor="#eeeeee"
| SATA_CONTROLLER_MODE || southbridge/amd/cimx/sb700 || hex ||  ||
0x0 = Native IDE mode.
0x1 = RAID mode.
0x2 = AHCI mode.
0x3 = Legacy IDE mode.
0x4 = IDE->AHCI mode.
0x5 = AHCI mode as 7804 ID (AMD driver).
0x6 = IDE->AHCI mode as 7804 ID (AMD driver).
 
||
|- bgcolor="#eeeeee"
| PCIB_ENABLE || southbridge/amd/cimx/sb700 || bool ||  ||
n = Disable PCI Bridge Device 14 Function 4.
y = Enable PCI Bridge Device 14 Function 4.
 
||
|- bgcolor="#eeeeee"
| ACPI_SCI_IRQ || southbridge/amd/cimx/sb700 || hex ||  ||
Set SCI IRQ to 9.
 
||
|- bgcolor="#eeeeee"
| REDIRECT_SBCIMX_TRACE_TO_SERIAL || southbridge/amd/cimx/sb700 || bool || Redirect AMD Southbridge CIMX Trace to serial console ||
This Option allows you to redirect the AMD Southbridge CIMX Trace
debug information to the serial console.
 
Warning: Only enable this option when debuging or tracing AMD CIMX code.
 
||
|- bgcolor="#eeeeee"
| ENABLE_IDE_COMBINED_MODE || southbridge/amd/cimx/sb800 || bool || Enable SATA IDE combined mode ||
If Combined Mode is enabled. IDE controller is exposed and
SATA controller has control over Port0 through Port3,
IDE controller has control over Port4 and Port5.
 
If Combined Mode is disabled, IDE controller is hidden and
SATA controller has full control of all 6 Ports when operating in non-IDE mode.
 
||
|- bgcolor="#eeeeee"
| IDE_COMBINED_MODE || southbridge/amd/cimx/sb800 || hex || SATA Mode ||
Select the mode in which SATA should be driven. NATIVE AHCI, or RAID.
The default is AHCI.
 
||
|- bgcolor="#eeeeee"
| SB800_SATA_IDE || southbridge/amd/cimx/sb800 || bool || NATIVE ||
NATIVE does not require a ROM.
 
||
|- bgcolor="#eeeeee"
| SB800_SATA_AHCI || southbridge/amd/cimx/sb800 || bool || AHCI ||
AHCI is the default and may work with or without AHCI ROM. It depends on the payload support.
For example, seabios does not require the AHCI ROM.
 
||
|- bgcolor="#eeeeee"
| SB800_SATA_RAID || southbridge/amd/cimx/sb800 || bool || RAID ||
sb800 RAID mode must have the two required ROM files.
 
||
|- bgcolor="#eeeeee"
| RAID_ROM_ID || southbridge/amd/cimx/sb800 || string || RAID device PCI IDs ||
1002,4392 for SATA NON-RAID5 module, 1002,4393 for SATA RAID5 mode
 
||
|- bgcolor="#eeeeee"
| RAID_MISC_ROM_POSITION || southbridge/amd/cimx/sb800 || hex || RAID Misc ROM Position ||
The RAID ROM requires that the MISC ROM is located between the range
0xFFF0_0000 to 0xFFF0_FFFF. Also, it must 1K bytes aligned.
The CONFIG_ROM_SIZE must larger than 0x100000.
 
||
|- bgcolor="#eeeeee"
| SB800_IMC_FWM || southbridge/amd/cimx/sb800 || bool || Add IMC firmware ||
Add SB800 / Hudson 1 IMC Firmware to support the onboard fan control.
 
||
|- bgcolor="#eeeeee"
| SB800_FWM_AT_FFFA0000 || southbridge/amd/cimx/sb800 || bool || 0xFFFA0000 ||
The IMC and GEC ROMs requires a 'signature' located at one of several
fixed locations in memory.  The location used shouldn't matter, just
select an area that doesn't conflict with anything else.
 
||
|- bgcolor="#eeeeee"
| SB800_FWM_AT_FFF20000 || southbridge/amd/cimx/sb800 || bool || 0xFFF20000 ||
The IMC and GEC ROMs requires a 'signature' located at one of several
fixed locations in memory.  The location used shouldn't matter, just
select an area that doesn't conflict with anything else.
 
||
|- bgcolor="#eeeeee"
| SB800_FWM_AT_FFE20000 || southbridge/amd/cimx/sb800 || bool || 0xFFE20000 ||
The IMC and GEC ROMs requires a 'signature' located at one of several
fixed locations in memory.  The location used shouldn't matter, just
select an area that doesn't conflict with anything else.
 
||
|- bgcolor="#eeeeee"
| SB800_FWM_AT_FFC20000 || southbridge/amd/cimx/sb800 || bool || 0xFFC20000 ||
The IMC and GEC ROMs requires a 'signature' located at one of several
fixed locations in memory.  The location used shouldn't matter, just
select an area that doesn't conflict with anything else.
 
||
|- bgcolor="#eeeeee"
| SB800_FWM_AT_FF820000 || southbridge/amd/cimx/sb800 || bool || 0xFF820000 ||
The IMC and GEC ROMs requires a 'signature' located at one of several
fixed locations in memory.  The location used shouldn't matter, just
select an area that doesn't conflict with anything else.
 
||
|- bgcolor="#eeeeee"
| EHCI_BAR || southbridge/amd/cimx/sb800 || hex || Fan Control ||
Select the method of SB800 fan control to be used.  None would be
for either fixed maximum speed fans connected to the SB800 or for
an external chip controlling the fan speeds.  Manual control sets
up the SB800 fan control registers.  IMC fan control uses the SB800
IMC to actively control the fan speeds.
 
||
|- bgcolor="#eeeeee"
| SB800_NO_FAN_CONTROL || southbridge/amd/cimx/sb800 || bool || None ||
No SB800 Fan control - Do not set up the SB800 fan control registers.
 
||
|- bgcolor="#eeeeee"
| SB800_MANUAL_FAN_CONTROL || southbridge/amd/cimx/sb800 || bool || Manual ||
Configure the SB800 fan control registers in devicetree.cb.
 
||
|- bgcolor="#eeeeee"
| SB800_IMC_FAN_CONTROL || southbridge/amd/cimx/sb800 || bool || IMC Based ||
Set up the SB800 to use the IMC based Fan controller.  This requires
the IMC rom from AMD.  Configure the registers in devicetree.cb.
 
||
|- bgcolor="#eeeeee"
| SATA_CONTROLLER_MODE || southbridge/amd/cimx/sb900 || hex ||  ||
0x0 = Native IDE mode.
0x1 = RAID mode.
0x2 = AHCI mode.
0x3 = Legacy IDE mode.
0x4 = IDE->AHCI mode.
0x5 = AHCI mode as 7804 ID (AMD driver).
0x6 = IDE->AHCI mode as 7804 ID (AMD driver).
 
||
|- bgcolor="#eeeeee"
| PCIB_ENABLE || southbridge/amd/cimx/sb900 || bool ||  ||
n = Disable PCI Bridge Device 14 Function 4.
y = Enable PCI Bridge Device 14 Function 4.
 
||
|- bgcolor="#eeeeee"
| ACPI_SCI_IRQ || southbridge/amd/cimx/sb900 || hex ||  ||
Set SCI IRQ to 9.
 
||
|- bgcolor="#eeeeee"
| HUDSON_XHCI_ENABLE || southbridge/amd/pi/hudson || bool || Enable Hudson XHCI Controller ||
The XHCI controller must be enabled and the XHCI firmware
must be added in order to have USB 3.0 support configured
by coreboot. The OS will be responsible for enabling the XHCI
controller if the the XHCI firmware is available but the
XHCI controller is not enabled by coreboot.
 
||
|- bgcolor="#eeeeee"
| HUDSON_XHCI_FWM || southbridge/amd/pi/hudson || bool || Add xhci firmware ||
Add Hudson 2/3/4 XHCI Firmware to support the onboard USB 3.0
 
||
|- bgcolor="#eeeeee"
| HUDSON_IMC_FWM || southbridge/amd/pi/hudson || bool || Add IMC firmware ||
Add Hudson 2/3/4 IMC Firmware to support the onboard fan control
 
||
|- bgcolor="#eeeeee"
| HUDSON_GEC_FWM || southbridge/amd/pi/hudson || bool ||  ||
Add Hudson 2/3/4 GEC Firmware to support the onboard gigabit Ethernet MAC.
Must be connected to a Broadcom B50610 or B50610M PHY on the motherboard.
 
||
|- bgcolor="#eeeeee"
| HUDSON_FWM_POSITION || southbridge/amd/pi/hudson || hex || Hudson Firmware ROM Position ||
Hudson requires the firmware MUST be located at
a specific address (ROM start address + 0x20000), otherwise
xhci host Controller can not find or load the xhci firmware.
 
The firmware start address is dependent on the ROM chip size.
The default offset is 0x20000 from the ROM start address, namely
0xFFF20000 if flash chip size is 1M
0xFFE20000 if flash chip size is 2M
0xFFC20000 if flash chip size is 4M
0xFF820000 if flash chip size is 8M
0xFF020000 if flash chip size is 16M
||
|- bgcolor="#eeeeee"
| HUDSON_SATA_MODE || southbridge/amd/pi/hudson || int || SATA Mode ||
Select the mode in which SATA should be driven. NATIVE AHCI, or RAID.
The default is NATIVE.
0: NATIVE mode does not require a ROM.
1: RAID mode must have the two ROM files.
2: AHCI may work with or without AHCI ROM. It depends on the payload support.
For example, seabios does not require the AHCI ROM.
3: LEGACY IDE
4: IDE to AHCI
5: AHCI7804: ROM Required, and AMD driver required in the OS.
6: IDE to AHCI7804: ROM Required, and AMD driver required in the OS.
 
||
|- bgcolor="#eeeeee"
| || || (comment) || || NATIVE ||
|- bgcolor="#eeeeee"
| || || (comment) || || RAID ||
|- bgcolor="#eeeeee"
| || || (comment) || || AHCI ||
|- bgcolor="#eeeeee"
| || || (comment) || || LEGACY IDE ||
|- bgcolor="#eeeeee"
| || || (comment) || || IDE to AHCI ||
|- bgcolor="#eeeeee"
| || || (comment) || || AHCI7804 ||
|- bgcolor="#eeeeee"
| || || (comment) || || IDE to AHCI7804 ||
|- bgcolor="#eeeeee"
| RAID_ROM_ID || southbridge/amd/pi/hudson || string || RAID device PCI IDs ||
1022,7802 for SATA NON-RAID5 module, 1022,7803 for SATA RAID5 mode
 
||
|- bgcolor="#eeeeee"
| RAID_MISC_ROM_POSITION || southbridge/amd/pi/hudson || hex || RAID Misc ROM Position ||
The RAID ROM requires that the MISC ROM is located between the range
0xFFF0_0000 to 0xFFF0_FFFF. Also, it must 1K bytes aligned.
The CONFIG_ROM_SIZE must be larger than 0x100000.
 
||
|- bgcolor="#eeeeee"
| HUDSON_LEGACY_FREE || southbridge/amd/pi/hudson || bool || System is legacy free ||
Select y if there is no keyboard controller in the system.
This sets variables in AGESA and ACPI.
 
||
|- bgcolor="#eeeeee"
| AZ_PIN || southbridge/amd/pi/hudson || hex ||  ||
bit 1,0 - pin 0
bit 3,2 - pin 1
bit 5,4 - pin 2
bit 7,6 - pin 3
||
|- bgcolor="#eeeeee"
| EXT_CONF_SUPPORT || southbridge/amd/rs690 || bool ||  ||
Select if RS690 should be setup to support MMCONF.
 
||
|- bgcolor="#eeeeee"
| HUDSON_XHCI_ENABLE || southbridge/amd/agesa/hudson || bool || Enable Hudson XHCI Controller ||
The XHCI controller must be enabled and the XHCI firmware
must be added in order to have USB 3.0 support configured
by coreboot. The OS will be responsible for enabling the XHCI
controller if the the XHCI firmware is available but the
XHCI controller is not enabled by coreboot.
 
||
|- bgcolor="#eeeeee"
| HUDSON_XHCI_FWM || southbridge/amd/agesa/hudson || bool || Add xhci firmware ||
Add Hudson 2/3/4 XHCI Firmware to support the onboard USB 3.0
 
||
|- bgcolor="#eeeeee"
| HUDSON_IMC_FWM || southbridge/amd/agesa/hudson || bool || Add imc firmware ||
Add Hudson 2/3/4 IMC Firmware to support the onboard fan control
 
||
|- bgcolor="#eeeeee"
| HUDSON_GEC_FWM || southbridge/amd/agesa/hudson || bool ||  ||
Add Hudson 2/3/4 GEC Firmware to support the onboard gigabit Ethernet MAC.
Must be connected to a Broadcom B50610 or B50610M PHY on the motherboard.
 
||
|- bgcolor="#eeeeee"
| HUDSON_FWM_POSITION || southbridge/amd/agesa/hudson || hex || Hudson Firmware ROM Position ||
Hudson requires the firmware MUST be located at
a specific address (ROM start address + 0x20000), otherwise
xhci host Controller can not find or load the xhci firmware.
 
The firmware start address is dependent on the ROM chip size.
The default offset is 0x20000 from the ROM start address, namely
0xFFF20000 if flash chip size is 1M
0xFFE20000 if flash chip size is 2M
0xFFC20000 if flash chip size is 4M
0xFF820000 if flash chip size is 8M
0xFF020000 if flash chip size is 16M
||
|- bgcolor="#eeeeee"
| HUDSON_SATA_MODE || southbridge/amd/agesa/hudson || int || SATA Mode ||
Select the mode in which SATA should be driven. NATIVE AHCI, or RAID.
The default is NATIVE.
0: NATIVE mode does not require a ROM.
1: RAID mode must have the two ROM files.
2: AHCI may work with or without AHCI ROM. It depends on the payload support.
For example, seabios does not require the AHCI ROM.
3: LEGACY IDE
4: IDE to AHCI
5: AHCI7804: ROM Required, and AMD driver required in the OS.
6: IDE to AHCI7804: ROM Required, and AMD driver required in the OS.
 
||
|- bgcolor="#eeeeee"
| || || (comment) || || NATIVE ||
|- bgcolor="#eeeeee"
| || || (comment) || || RAID ||
|- bgcolor="#eeeeee"
| || || (comment) || || AHCI ||
|- bgcolor="#eeeeee"
| || || (comment) || || LEGACY IDE ||
|- bgcolor="#eeeeee"
| || || (comment) || || IDE to AHCI ||
|- bgcolor="#eeeeee"
| || || (comment) || || AHCI7804 ||
|- bgcolor="#eeeeee"
| || || (comment) || || IDE to AHCI7804 ||
|- bgcolor="#eeeeee"
| RAID_ROM_ID || southbridge/amd/agesa/hudson || string || RAID device PCI IDs ||
1022,7802 for SATA NON-RAID5 module, 1022,7803 for SATA RAID5 mode
 
||
|- bgcolor="#eeeeee"
| RAID_MISC_ROM_POSITION || southbridge/amd/agesa/hudson || hex || RAID Misc ROM Position ||
The RAID ROM requires that the MISC ROM is located between the range
0xFFF0_0000 to 0xFFF0_FFFF. Also, it must 1K bytes aligned.
The CONFIG_ROM_SIZE must be larger than 0x100000.
 
||
|- bgcolor="#eeeeee"
| HUDSON_LEGACY_FREE || southbridge/amd/agesa/hudson || bool || System is legacy free ||
Select y if there is no keyboard controller in the system.
This sets variables in AGESA and ACPI.
 
||
|- bgcolor="#eeeeee"
| AZ_PIN || southbridge/amd/agesa/hudson || hex ||  ||
bit 1,0 - pin 0
bit 3,2 - pin 1
bit 5,4 - pin 2
bit 7,6 - pin 3
||
|- bgcolor="#eeeeee"
| EHCI_BAR || southbridge/amd/sb600 || hex || SATA Mode ||
Select the mode in which SATA should be driven. IDE or AHCI.
The default is IDE.
 
config SATA_MODE_IDE
bool "IDE"
 
config SATA_MODE_AHCI
bool "AHCI"
||
|- bgcolor="#eeeeee"
| || || (comment) || || Super I/O ||
|- bgcolor="#eeeeee"
| || || (comment) || || Embedded Controllers ||
|- bgcolor="#eeeeee"
| EC_ACPI || ec/acpi || bool ||  ||
ACPI Embedded Controller interface. Mostly found in laptops.
 
||
||
|- bgcolor="#eeeeee"
| EC_QUANTA_IT8518 || ec/quanta/it8518 || bool ||  ||
Interface to QUANTA IT8518 Embedded Controller.
 
||
||
|- bgcolor="#eeeeee"
| EC_QUANTA_ENE_KB3940Q || ec/quanta/ene_kb3940q || bool ||  ||
Interface to QUANTA ENE KB3940Q Embedded Controller.
 
||
||
|- bgcolor="#eeeeee"
| EC_SMSC_MEC1308 || ec/smsc/mec1308 || bool ||  ||
Shared memory mailbox interface to SMSC MEC1308 Embedded Controller.
 
||
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC || ec/google/chromeec || bool ||  ||
Google's Chrome EC
 
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC_ACPI_MEMMAP || ec/google/chromeec || bool ||  ||
When defined, ACPI accesses EC memmap data on ports 66h/62h. When
not defined, the memmap data is instead accessed on 900h-9ffh via
the LPC bus.
 
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC_I2C || ec/google/chromeec || bool ||  ||
Google's Chrome EC via I2C bus.
 
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC_I2C_PROTO3 || ec/google/chromeec || bool ||  ||
Use only proto3 for i2c EC communication.
 
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC_LPC || ec/google/chromeec || bool ||  ||
Google Chrome EC via LPC bus.
 
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC_MEC || ec/google/chromeec || bool ||  ||
Microchip EC variant for LPC register access.
 
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC_SPI || ec/google/chromeec || bool ||  ||
Google's Chrome EC via SPI bus.
 
||
|- bgcolor="#eeeeee"
| EC_GOOGLE_CHROMEEC_SPI_WAKEUP_DELAY_US || ec/google/chromeec || int ||  ||
Force delay after asserting /CS to allow EC to wakeup.
 
||
|- bgcolor="#eeeeee"
| EC_COMPAL_ENE932 || ec/compal/ene932 || bool ||  ||
Interface to COMPAL ENE932 Embedded Controller.
 
||
||
|- bgcolor="#eeeeee"
| EC_KONTRON_IT8516E || ec/kontron/it8516e || bool ||  ||
Kontron uses an ITE IT8516E on the KTQM77. Its firmware might
come from Fintek (mentioned as Finte*c* somewhere in their Linux
driver).
The KTQM77 is an embedded board and the IT8516E seems to be
only used for fan control and GPIO.
 
||
||
|- bgcolor="#eeeeee"
| || || (comment) || || SoC ||
|- bgcolor="#eeeeee"
| BOOTBLOCK_CPU_INIT || soc/nvidia/tegra124 || string ||  ||
CPU/SoC-specific bootblock code. This is useful if the
bootblock must load microcode or copy data from ROM before
searching for the bootblock.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_DO_DSI_INIT || soc/nvidia/tegra132 || bool || Use dsi graphics interface ||
Initialize dsi display
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_DO_SOR_INIT || soc/nvidia/tegra132 || bool || Use dp graphics interface ||
Initialize dp display
 
||
|- bgcolor="#eeeeee"
| BOOTBLOCK_CPU_INIT || soc/nvidia/tegra132 || string ||  ||
CPU/SoC-specific bootblock code. This is useful if the
bootblock must load microcode or copy data from ROM before
searching for the bootblock.
 
||
|- bgcolor="#eeeeee"
| MTS_DIRECTORY || soc/nvidia/tegra132 || string || Directory where MTS microcode files are located ||
Path to directory where MTS microcode files are located.
 
||
|- bgcolor="#eeeeee"
| TRUSTZONE_CARVEOUT_SIZE_MB || soc/nvidia/tegra132 || hex || Size of Trust Zone region ||
Size of Trust Zone area in MiB to reserve in memory map.
 
||
|- bgcolor="#eeeeee"
| BOOTROM_SDRAM_INIT || soc/nvidia/tegra132 || bool || SoC BootROM does SDRAM init with full BCT ||
Use during Ryu LPDDR3 bringup
 
||
|- bgcolor="#eeeeee"
| CYGNUS_DDR_AUTO_SELF_REFRESH_ENABLE || soc/broadcom/cygnus || bool || Enable DDR auto self-refresh ||
Warning: M0 expects that auto self-refresh is enabled. Modify
with caution.
 
 
||
|- bgcolor="#eeeeee"
| SOC_INTEL_BAYTRAIL || soc/intel/baytrail || bool ||  ||
Bay Trail M/D part support.
 
||
|- bgcolor="#eeeeee"
| HAVE_MRC || soc/intel/baytrail || bool || Add a Memory Reference Code binary ||
Select this option to add a blob containing
memory reference code.
Note: Without this binary coreboot will not work
 
||
|- bgcolor="#eeeeee"
| MRC_FILE || soc/intel/baytrail || string || Intel memory refeference code path and filename ||
The path and filename of the file to use as System Agent
binary. Note that this points to the sandybridge binary file
which is will not work, but it serves its purpose to do builds.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_SIZE || soc/intel/baytrail || hex ||  ||
The size of the cache-as-ram region required during bootblock
and/or romstage. Note DCACHE_RAM_SIZE and DCACHE_RAM_MRC_VAR_SIZE
must add up to a power of 2.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_MRC_VAR_SIZE || soc/intel/baytrail || hex ||  ||
The amount of cache-as-ram region required by the reference code.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_ROMSTAGE_STACK_SIZE || soc/intel/baytrail || hex ||  ||
The amount of anticipated stack usage from the data cache
during pre-RAM ROM stage execution.
 
||
|- bgcolor="#eeeeee"
| RESET_ON_INVALID_RAMSTAGE_CACHE || soc/intel/baytrail || bool || Reset the system on S3 wake when ramstage cache invalid. ||
The baytrail romstage code caches the loaded ramstage program
in SMM space. On S3 wake the romstage will copy over a fresh
ramstage that was cached in the SMM space. This option determines
the action to take when the ramstage cache is invalid. If selected
the system will reset otherwise the ramstage will be reloaded from
cbfs.
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || soc/intel/baytrail || hex || Size of CBFS filesystem in ROM ||
On Bay Trail systems the firmware image has to store a lot more
than just coreboot, including:
- a firmware descriptor
- Intel Management Engine firmware
- MRC cache information
This option allows to limit the size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| ENABLE_BUILTIN_COM1 || soc/intel/baytrail || bool || Enable builtin COM1 Serial Port ||
The PMC has a legacy COM1 serial port. Choose this option to
configure the pads and enable it. This serial port can be used for
the debug console.
 
||
|- bgcolor="#eeeeee"
| HAVE_ME_BIN || soc/intel/baytrail || bool || Add Intel Management Engine firmware ||
The Intel processor in the selected system requires a special firmware
for an integrated controller called Management Engine (ME). The ME
firmware might be provided in coreboot's 3rdparty repository. If
not and if you don't have the firmware elsewhere, you can still
build coreboot without it. In this case however, you'll have to make
sure that you don't overwrite your ME firmware on your flash ROM.
 
||
|- bgcolor="#eeeeee"
| BUILD_WITH_FAKE_IFD || soc/intel/baytrail || bool || Build with a fake IFD ||
If you don't have an Intel Firmware Descriptor (ifd.bin) for your
board, you can select this option and coreboot will build without it.
Though, the resulting coreboot.rom will not contain all parts required
to get coreboot running on your board. You can however write only the
BIOS section to your board's flash ROM and keep the other sections
untouched. Unfortunately the current version of flashrom doesn't
support this yet. But there is a patch pending [1].
 
WARNING: Never write a complete coreboot.rom to your flash ROM if it
was built with a fake IFD. It just won't work.
 
[1] http://www.flashrom.org/pipermail/flashrom/2013-June/011083.html
 
||
|- bgcolor="#eeeeee"
| HAVE_REFCODE_BLOB || soc/intel/baytrail || bool || An external reference code blob should be put into cbfs. ||
The reference code blob will be placed into cbfs.
 
||
|- bgcolor="#eeeeee"
| REFCODE_BLOB_FILE || soc/intel/baytrail || string || Path and filename to reference code blob. ||
The path and filename to the file to be added to cbfs.
 
||
|- bgcolor="#eeeeee"
| SOC_INTEL_COMMON || soc/intel/common || bool ||  ||
common code for Intel SOCs
 
||
|- bgcolor="#eeeeee"
| SOC_INTEL_BROADWELL || soc/intel/broadwell || bool ||  ||
Intel Broadwell and Haswell ULT support.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_SIZE || soc/intel/broadwell || hex ||  ||
The size of the cache-as-ram region required during bootblock
and/or romstage. Note DCACHE_RAM_SIZE and DCACHE_RAM_MRC_VAR_SIZE
must add up to a power of 2.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_MRC_VAR_SIZE || soc/intel/broadwell || hex ||  ||
The amount of cache-as-ram region required by the reference code.
 
||
|- bgcolor="#eeeeee"
| DCACHE_RAM_ROMSTAGE_STACK_SIZE || soc/intel/broadwell || hex ||  ||
The amount of anticipated stack usage from the data cache
during pre-ram rom stage execution.
 
||
|- bgcolor="#eeeeee"
| HAVE_MRC || soc/intel/broadwell || bool || Add a Memory Reference Code binary ||
Select this option to add a Memory Reference Code binary to
the resulting coreboot image.
 
Note: Without this binary coreboot will not work
 
||
|- bgcolor="#eeeeee"
| MRC_FILE || soc/intel/broadwell || string || Intel Memory Reference Code path and filename ||
The filename of the file to use as Memory Reference Code binary.
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || soc/intel/broadwell || hex || Size of CBFS filesystem in ROM ||
The firmware image has to store more than just coreboot, including:
- a firmware descriptor
- Intel Management Engine firmware
- MRC cache information
This option allows to limit the size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| PRE_GRAPHICS_DELAY || soc/intel/broadwell || int || Graphics initialization delay in ms ||
On some systems, coreboot boots so fast that connected monitors
(mostly TVs) won't be able to wake up fast enough to talk to the
VBIOS. On those systems we need to wait for a bit before executing
the VBIOS.
 
||
|- bgcolor="#eeeeee"
| RESET_ON_INVALID_RAMSTAGE_CACHE || soc/intel/broadwell || bool || Reset the system on S3 wake when ramstage cache invalid. ||
The romstage code caches the loaded ramstage program in SMM space.
On S3 wake the romstage will copy over a fresh ramstage that was
cached in the SMM space. This option determines the action to take
when the ramstage cache is invalid. If selected the system will
reset otherwise the ramstage will be reloaded from cbfs.
 
||
|- bgcolor="#eeeeee"
| SERIRQ_CONTINUOUS_MODE || soc/intel/broadwell || bool ||  ||
If you set this option to y, the serial IRQ machine will be
operated in continuous mode.
||
|- bgcolor="#eeeeee"
| HAVE_ME_BIN || soc/intel/broadwell || bool || Add Intel Management Engine firmware ||
The Intel processor in the selected system requires a special firmware
for an integrated controller called Management Engine (ME). The ME
firmware might be provided in coreboot's 3rdparty repository. If
not and if you don't have the firmware elsewhere, you can still
build coreboot without it. In this case however, you'll have to make
sure that you don't overwrite your ME firmware on your flash ROM.
 
||
|- bgcolor="#eeeeee"
| BUILD_WITH_FAKE_IFD || soc/intel/broadwell || bool || Build with a fake IFD ||
If you don't have an Intel Firmware Descriptor (ifd.bin) for your
board, you can select this option and coreboot will build without it.
Though, the resulting coreboot.rom will not contain all parts required
to get coreboot running on your board. You can however write only the
BIOS section to your board's flash ROM and keep the other sections
untouched. Unfortunately the current version of flashrom doesn't
support this yet. But there is a patch pending [1].
 
WARNING: Never write a complete coreboot.rom to your flash ROM if it
was built with a fake IFD. It just won't work.
 
[1] http://www.flashrom.org/pipermail/flashrom/2013-June/011083.html
 
||
|- bgcolor="#eeeeee"
| LOCK_MANAGEMENT_ENGINE || soc/intel/broadwell || bool || Lock Management Engine section ||
The Intel Management Engine supports preventing write accesses
from the host to the Management Engine section in the firmware
descriptor. If the ME section is locked, it can only be overwritten
with an external SPI flash programmer. You will want this if you
want to increase security of your ROM image once you are sure
that the ME firmware is no longer going to change.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| SOC_INTEL_FSP_BAYTRAIL || soc/intel/fsp_baytrail || bool ||  ||
Bay Trail I part support using the Intel FSP.
 
||
|- bgcolor="#eeeeee"
| SMM_TSEG_SIZE || soc/intel/fsp_baytrail || hex ||  ||
This is set by the FSP
 
||
|- bgcolor="#eeeeee"
| VGA_BIOS_ID || soc/intel/fsp_baytrail || string ||  ||
This is the default PCI ID for the Bay Trail graphics
devices.  This string names the vbios ROM in cbfs.
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || soc/intel/fsp_baytrail || hex ||  ||
On Bay Trail systems the firmware image has to store a lot more
than just coreboot, including:
- a firmware descriptor
- Intel Trusted Execution Engine firmware
This option specifies the maximum size of the CBFS portion in the
firmware image.
 
||
|- bgcolor="#eeeeee"
| INCLUDE_ME || soc/intel/fsp_baytrail || bool || Include the TXE ||
Build the TXE and descriptor.bin into the ROM image.  If you want to use a
descriptor.bin and TXE file from the previous ROM image, you may not want
to build it in here.
 
||
|- bgcolor="#eeeeee"
| ME_PATH || soc/intel/fsp_baytrail || string || Path to ME ||
The path of the TXE and Descriptor files.
 
||
|- bgcolor="#eeeeee"
| LOCK_MANAGEMENT_ENGINE || soc/intel/fsp_baytrail || bool || Lock TXE section ||
The Intel Trusted Execution Engine supports preventing write accesses
from the host to the Management Engine section in the firmware
descriptor. If the ME section is locked, it can only be overwritten
with an external SPI flash programmer. You will want this if you
want to increase security of your ROM image once you are sure
that the ME firmware is no longer going to change.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| ENABLE_BUILTIN_COM1 || soc/intel/fsp_baytrail || bool || Enable built-in legacy Serial Port ||
The Baytrail SOC has one legacy serial port. Choose this option to
configure the pads and enable it. This serial port can be used for
the debug console.
 
||
|- bgcolor="#eeeeee"
| FSP_FILE || soc/intel/fsp_baytrail/fsp || string ||  ||
The path and filename of the Intel FSP binary for this platform.
 
||
|- bgcolor="#eeeeee"
| FSP_LOC || soc/intel/fsp_baytrail/fsp || hex ||  ||
The location in CBFS that the FSP is located. This must match the
value that is set in the FSP binary.  If the FSP needs to be moved,
rebase the FSP with Intel's BCT (tool).
 
The Bay Trail FSP is built with a preferred base address of
0xFFFC0000.
 
||
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || soc/qualcomm/ipq806x || hex || Size of CBFS filesystem in ROM ||
CBFS size needs to match the size of memory allocated to the
coreboot blob elsewhere in the system. Make sure this config option
is fine tuned in the board config file.
 
||
|- bgcolor="#eeeeee"
| SBL_BLOB || soc/qualcomm/ipq806x || string || file name of the Qualcomm SBL blob ||
The path and filename of the binary blob containing
ipq806x early initialization code, as supplied by the
vendor.
 
||
|- bgcolor="#eeeeee"
| || || (comment) || || Intel FSP ||
|- bgcolor="#eeeeee"
| HAVE_FSP_BIN || drivers/intel/fsp1_0 || bool || Use Intel Firmware Support Package ||
Select this option to add an Intel FSP binary to
the resulting coreboot image.
 
Note: Without this binary, coreboot builds relying on the FSP
will not boot
 
||
|- bgcolor="#eeeeee"
| FSP_FILE || drivers/intel/fsp1_0 || string || Intel FSP binary path and filename ||
The path and filename of the Intel FSP binary for this platform.
 
||
|- bgcolor="#eeeeee"
| FSP_LOC || drivers/intel/fsp1_0 || hex || Intel FSP Binary location in CBFS ||
The location in CBFS that the FSP is located. This must match the
value that is set in the FSP binary.  If the FSP needs to be moved,
rebase the FSP with Intel's BCT (tool).
 
||
|- bgcolor="#eeeeee"
| ENABLE_FSP_FAST_BOOT || drivers/intel/fsp1_0 || bool || Enable Fast Boot ||
Enabling this feature will force the MRC data to be cached in NV
storage to be used for speeding up boot time on future reboots
and/or power cycles.
 
||
|- bgcolor="#eeeeee"
| ENABLE_MRC_CACHE || drivers/intel/fsp1_0 || bool ||  ||
Enabling this feature will cause MRC data to be cached in NV storage.
This can either be used for fast boot, or just because the FSP wants
it to be saved.
 
||
|- bgcolor="#eeeeee"
| MRC_CACHE_SIZE || drivers/intel/fsp1_0 || hex || Fast Boot Data Cache Size ||
This is the amount of space in NV storage that is reserved for the
fast boot data cache storage.
 
WARNING: Because this area will be erased and re-written, the size
should be a full sector of the flash ROM chip and nothing else should
be included in CBFS in any sector that the fast boot cache data is in.
 
||
|- bgcolor="#eeeeee"
| OVERRIDE_CACHE_CACHE_LOC || drivers/intel/fsp1_0 || bool ||  ||
Selected by the platform to set a new default location for the
MRC/fast boot cache.
 
||
|- bgcolor="#eeeeee"
| MRC_CACHE_LOC_OVERRIDE || drivers/intel/fsp1_0 || hex ||  ||
Sets the override CBFS location of the MRC/fast boot cache.
 
||
|- bgcolor="#eeeeee"
| MRC_CACHE_LOC || drivers/intel/fsp1_0 || hex || Fast Boot Data Cache location in CBFS ||
The location in CBFS for the MRC data to be cached.
 
WARNING: This should be on a sector boundary of the BIOS ROM chip
and nothing else should be included in that sector, or IT WILL BE
ERASED.
 
||
|- bgcolor="#eeeeee"
| VIRTUAL_ROM_SIZE || drivers/intel/fsp1_0 || hex || Virtual ROM Size ||
This is used to calculate the offset of the MRC data cache in NV
Storage for fast boot.  If in doubt, leave this set to the default
which sets the virtual size equal to the ROM size.
 
Example: Cougar Canyon 2 has two 8 MB SPI ROMs.  When the SPI ROMs are
loaded with a 4 MB coreboot image, the virtual ROM size is 8 MB.  When
the SPI ROMs are loaded with an 8 MB coreboot image, the virtual ROM
size is 16 MB.
 
||
|- bgcolor="#eeeeee"
| CACHE_ROM_SIZE_OVERRIDE || drivers/intel/fsp1_0 || hex || Cache ROM Size ||
This is the size of the cachable area that is passed into the FSP in
the early initialization.  Typically this should be the size of the CBFS
area, but the size must be a power of 2 whereas the CBFS size does not
have this limitation.
 
||
|- bgcolor="#eeeeee"
| USE_GENERIC_FSP_CAR_INC || drivers/intel/fsp1_0 || bool ||  ||
The chipset can select this to use a generic cache_as_ram.inc file
that should be good for all FSP based platforms.
 
||
|- bgcolor="#eeeeee"
| FSP_USES_UPD || drivers/intel/fsp1_0 || bool ||  ||
If this FSP uses UPD/VPD data regions, select this in the chipset Kconfig.
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Devices || || || ||
|- bgcolor="#eeeeee"
| MAINBOARD_DO_NATIVE_VGA_INIT || device || bool || Use native graphics initialization ||
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.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| VGA_ROM_RUN || device || bool || Run VGA Option ROMs ||
Execute VGA Option ROMs in coreboot if found. This is required
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.
 
If unsure, say N when using SeaBIOS as payload, Y otherwise.
 
||
|- bgcolor="#eeeeee"
| S3_VGA_ROM_RUN || device || bool || Re-run VGA Option ROMs on S3 resume ||
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.
 
||
|- bgcolor="#eeeeee"
| ALWAYS_LOAD_OPROM || device || bool ||  ||
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.
 
||
|- bgcolor="#eeeeee"
| ON_DEVICE_ROM_RUN || device || bool || Run Option ROMs on PCI devices ||
Execute Option ROMs stored on PCI/PCIe/AGP 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.
 
||
|- bgcolor="#eeeeee"
| PCI_OPTION_ROM_RUN_REALMODE || device || bool || Native mode ||
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)
 
||
|- bgcolor="#eeeeee"
| PCI_OPTION_ROM_RUN_YABEL || device || bool || Secure mode ||
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.
 
||
|- bgcolor="#eeeeee"
| YABEL_PCI_ACCESS_OTHER_DEVICES || device || bool || Allow Option ROMs to access other devices ||
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.
 
||
|- bgcolor="#eeeeee"
| YABEL_PCI_FAKE_WRITING_OTHER_DEVICES_CONFIG || device || bool || Fake success on writing other device's config space ||
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.
 
||
|- bgcolor="#eeeeee"
| YABEL_VIRTMEM_LOCATION || device || hex || Location of YABEL's virtual memory ||
YABEL requires 1MB memory for its CPU emulation. This memory is
normally located at 16MB.
 
||
|- bgcolor="#eeeeee"
| YABEL_DIRECTHW || device || bool || Direct hardware access ||
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.
 
||
|- bgcolor="#eeeeee"
| PCIEXP_COMMON_CLOCK || device || bool || Enable PCIe Common Clock ||
Detect and enable Common Clock on PCIe links.
 
||
|- bgcolor="#eeeeee"
| PCIEXP_ASPM || device || bool || Enable PCIe ASPM ||
Detect and enable ASPM on PCIe links.
 
||
|- bgcolor="#eeeeee"
| PCIEXP_CLK_PM || device || bool || Enable PCIe Clock Power Management ||
Detect and enable Clock Power Management on PCIe.
 
||
|- bgcolor="#eeeeee"
| EARLY_PCI_BRIDGE || device || bool || Early PCI bridge ||
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.
 
||
|- bgcolor="#eeeeee"
| PCIEXP_L1_SUB_STATE || device || bool || Enable PCIe ASPM L1 SubState ||
Detect and enable ASPM on PCIe links.
 
||
|- bgcolor="#eeeeee"
| SUBSYSTEM_VENDOR_ID || device || hex || Override PCI Subsystem Vendor ID ||
This config option will override the devicetree settings for
PCI Subsystem Vendor ID.
 
||
|- bgcolor="#eeeeee"
| SUBSYSTEM_DEVICE_ID || device || hex || Override PCI Subsystem Device ID ||
This config option will override the devicetree settings for
PCI Subsystem Device ID.
 
||
|- bgcolor="#eeeeee"
| VGA_BIOS || device || bool || Add a VGA BIOS image ||
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.
 
||
|- bgcolor="#eeeeee"
| VGA_BIOS_FILE || device || string || VGA BIOS path and filename ||
The path and filename of the file to use as VGA BIOS.
 
||
|- bgcolor="#eeeeee"
| VGA_BIOS_ID || device || string || VGA device PCI IDs ||
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.
 
||
|- bgcolor="#eeeeee"
| INTEL_MBI || device || bool || Add an MBI image ||
Select this option if you have an Intel MBI 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.
 
||
|- bgcolor="#eeeeee"
| MBI_FILE || device || string || Intel MBI path and filename ||
The path and filename of the file to use as VGA BIOS.
 
||
|- bgcolor="#eeeeee"
| PXE_ROM || device || bool || Add a PXE ROM image ||
Select this option if you have a PXE ROM image that you would
like to add to your ROM.
 
||
|- bgcolor="#eeeeee"
| PXE_ROM_FILE || device || string || PXE ROM filename ||
The path and filename of the file to use as PXE ROM.
 
||
|- bgcolor="#eeeeee"
| PXE_ROM_ID || device || string || network card PCI IDs ||
The comma-separated PCI vendor and device ID that would associate
your PXE ROM to your network card.
 
Example: 10ec,8168
 
In the above example 10ec is the PCI vendor ID (in hex, but without
the "0x" prefix) and 8168 specifies the PCI device ID of the
network card (also in hex, without "0x" prefix).
 
Under GNU/Linux you can run `lspci -nn` to list the IDs of your PCI devices.
 
||
|- bgcolor="#eeeeee"
| SOFTWARE_I2C || device || bool || Enable I2C controller emulation in software ||
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.
 
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Display || || || ||
|- bgcolor="#eeeeee"
| FRAMEBUFFER_SET_VESA_MODE || device || bool || Set framebuffer graphics resolution ||
Set VESA/native framebuffer mode (needed for bootsplash and graphical framebuffer console)
 
||
|- bgcolor="#eeeeee"
| FRAMEBUFFER_SET_VESA_MODE || device || bool || framebuffer graphics resolution ||
This option sets the resolution used for the coreboot framebuffer (and
bootsplash screen).
 
||
|- bgcolor="#eeeeee"
| FRAMEBUFFER_KEEP_VESA_MODE || device || bool || Keep VESA framebuffer ||
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
framebuffer driver. If this option is disabled, coreboot will switch
back to text mode before handing control to a payload.
 
||
|- bgcolor="#eeeeee"
| BOOTSPLASH || device || bool || Show graphical bootsplash ||
This option shows a graphical bootsplash screen. The graphics are
loaded from the CBFS file bootsplash.jpg.
 
You will be able to specify the location and file name of the
image later.
 
||
|- bgcolor="#eeeeee"
| BOOTSPLASH_FILE || device || string || Bootsplash path and filename ||
The path and filename of the file to use as graphical bootsplash
screen. The file format has to be jpg.
 
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Generic Drivers || || || ||
|- bgcolor="#eeeeee"
| SPI_FLASH || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash.
 
||
|- bgcolor="#eeeeee"
| SPI_ATOMIC_SEQUENCING || drivers/spi || bool ||  ||
Select this option if the SPI controller uses "atomic sequencing."
Atomic sequencing is when the sequence of commands is pre-programmed
in the SPI controller. Hardware manages the transaction instead of
software. This is common on x86 platforms.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_MEMORY_MAPPED || drivers/spi || bool ||  ||
Inform system if SPI is memory-mapped or not.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_SMM || drivers/spi || bool || SPI flash driver support in SMM ||
Select this option if you want SPI flash support in SMM.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_NO_FAST_READ || drivers/spi || bool || Disable Fast Read command ||
Select this option if your setup requires to avoid "fast read"s
from the SPI flash parts.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_ADESTO || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by Adesto Technologies.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_AMIC || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by AMIC.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_ATMEL || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by Atmel.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_EON || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by EON.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_GIGADEVICE || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by Gigadevice.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_MACRONIX || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by Macronix.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_SPANSION || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by Spansion.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_SST || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by SST.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_STMICRO || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by ST MICRO.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_WINBOND || drivers/spi || bool ||  ||
Select this option if your chipset driver needs to store certain
data in the SPI flash and your SPI flash is made by Winbond.
 
||
|- bgcolor="#eeeeee"
| SPI_FLASH_FAST_READ_DUAL_OUTPUT_3B || drivers/spi || bool ||  ||
Select this option if your SPI flash supports the fast read dual-
output command (opcode 0x3b) where the opcode and address are sent
to the chip on MOSI and data is received on both MOSI and MISO.
 
||
|- bgcolor="#eeeeee"
| ELOG || drivers/elog || bool || Support for flash based event log ||
Enable support for flash based event logging.
 
||
|- bgcolor="#eeeeee"
| ELOG_FLASH_BASE || drivers/elog || hex || Event log offset into flash ||
Offset into the flash chip for the ELOG block.
This should be allocated in the FMAP.
 
||
|- bgcolor="#eeeeee"
| ELOG_AREA_SIZE || drivers/elog || hex || Size of Event Log area in flash ||
This should be a multiple of flash block size.
 
Default is 4K.
 
||
|- bgcolor="#eeeeee"
| ELOG_CBMEM || drivers/elog || bool || Store a copy of ELOG in CBMEM ||
This option will have ELOG store a copy of the flash event log
in a CBMEM region and export that address in SMBIOS to the OS.
This is useful if the ELOG location is not in memory mapped flash,
but it means that events added at runtime via the SMI handler
will not be reflected in the CBMEM copy of the log.
 
||
|- bgcolor="#eeeeee"
| ELOG_GSMI || drivers/elog || bool || SMI interface to write and clear event log ||
This interface is compatible with the linux kernel driver
available with CONFIG_GOOGLE_GSMI and can be used to write
kernel reset/shutdown messages to the event log.
 
||
|- bgcolor="#eeeeee"
| ELOG_BOOT_COUNT || drivers/elog || bool || Maintain a monotonic boot number in CMOS ||
Store a monotonic boot number in CMOS and provide an interface
to read the current value and increment the counter.  This boot
counter will be logged as part of the System Boot event.
 
||
|- bgcolor="#eeeeee"
| ELOG_BOOT_COUNT_CMOS_OFFSET || drivers/elog || int || Offset in CMOS to store the boot count ||
This value must be greater than 16 bytes so as not to interfere
with the standard RTC region.  Requires 8 bytes.
 
||
||
|- bgcolor="#eeeeee"
| USBDEBUG || drivers/usb || bool || USB 2.0 EHCI debug dongle support ||
This option allows you to use a so-called USB EHCI Debug device
(such as the Ajays NET20DC, AMIDebug RX, or a system using the
Linux "EHCI Debug Device gadget" driver found in recent kernel)
to retrieve the coreboot debug messages (instead, or in addition
to, a serial port).
 
This feature is NOT supported on all chipsets in coreboot!
 
It also requires a USB2 controller which supports the EHCI
Debug Port capability.
 
See http://www.coreboot.org/EHCI_Debug_Port for an up-to-date list
of supported controllers.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| USBDEBUG_IN_ROMSTAGE || drivers/usb || bool || Enable early (pre-RAM) usbdebug ||
Configuring USB controllers in system-agent binary may cause
problems to usbdebug. Disabling this option delays usbdebug to
be setup on entry to ramstage.
 
If unsure, say Y.
 
||
|- bgcolor="#eeeeee"
| USBDEBUG_HCD_INDEX || drivers/usb || int || Index for EHCI controller to use with usbdebug ||
Some boards have multiple EHCI controllers with possibly only
one having the Debug Port capability on an external USB port.
 
Mapping of this index to PCI device functions is southbridge
specific and mainboard level Kconfig should already provide
a working default value here.
 
||
|- bgcolor="#eeeeee"
| USBDEBUG_DEFAULT_PORT || drivers/usb || int || Default USB port to use as Debug Port ||
Selects which physical USB port usbdebug dongle is connected to.
Setting of 0 means to scan possible ports starting from 1.
 
Intel platforms have hardwired the debug port location and this
setting makes no difference there.
 
Hence, if you select the correct port here, you can speed up
your boot time. Which USB port number refers to which actual
port on your mainboard (potentially also USB pin headers on
your mainboard) is highly board-specific, and you'll likely
have to find out by trial-and-error.
 
||
|- bgcolor="#eeeeee"
| USBDEBUG_DONGLE_BEAGLEBONE || drivers/usb || bool || BeagleBone ||
Use this to configure the USB hub on BeagleBone board.
 
||
|- bgcolor="#eeeeee"
| USBDEBUG_DONGLE_BEAGLEBONE_BLACK || drivers/usb || bool || BeagleBone Black ||
Use this with BeagleBone Black.
 
||
|- bgcolor="#eeeeee"
| GIC || drivers/gic || None ||  ||
This option enables GIC support, the ARM generic interrupt controller.
 
||
||
|- bgcolor="#eeeeee"
| DRIVERS_UART_OXPCIE || drivers/uart || bool || Oxford OXPCIe952 ||
Support for Oxford OXPCIe952 serial port PCIe cards.
Currently only devices with the vendor ID 0x1415 and device ID
0xc158 or 0xc11b will work.
 
||
|- bgcolor="#eeeeee"
| DRIVERS_PS2_KEYBOARD || drivers/pc80 || bool || PS/2 keyboard init ||
Enable this option to initialize PS/2 keyboards found connected
to the PS/2 port.
 
Some payloads (eg, filo) require this option.  Other payloads
(eg, GRUB 2, SeaBIOS, Linux) do not require it.
Initializing a PS/2 keyboard can take several hundred milliseconds.
 
If you know you will only use a payload which does not require
this option, then you can say N here to speed up boot time.
Otherwise say Y.
 
||
|- bgcolor="#eeeeee"
| LPC_TPM || drivers/pc80/tpm || bool ||  ||
Enable this option to enable LPC TPM support in coreboot.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| TPM_TIS_BASE_ADDRESS || drivers/pc80/tpm || hex || TPM Base Address ||
This can be used to adjust the TPM memory base address.
The default is specified by the TCG PC Client Specific TPM
Interface Specification 1.2 and should not be changed unless
the TPM being used does not conform to TPM TIS 1.2.
 
||
 
||
|- bgcolor="#eeeeee"
| DRIVERS_EMULATION_QEMU_BOCHS || drivers/emulation/qemu || bool || bochs dispi interface vga driver ||
VGA driver for qemu emulated vga cards supporting
the bochs dispi interface.  This includes
standard vga, vmware svga and qxl.  The default
vga (cirrus) is *not* supported, so you have to
pick another one explicitly via 'qemu -vga $card'.
 
||
|- bgcolor="#eeeeee"
| DRIVER_XPOWERS_AXP209 || drivers/xpowers/axp209 || bool ||  ||
X-Powers AXP902 Power Management Unit
 
||
|- bgcolor="#eeeeee"
| DRIVER_XPOWERS_AXP209_BOOTBLOCK || drivers/xpowers/axp209 || bool ||  ||
Make AXP209 functionality available in he bootblock.
 
||
|- bgcolor="#eeeeee"
| INTEL_DP || drivers/intel/gma || bool ||  ||
helper functions for intel display port operations
 
||
|- bgcolor="#eeeeee"
| INTEL_DDI || drivers/intel/gma || bool ||  ||
helper functions for intel DDI operations
 
||
|- bgcolor="#eeeeee"
| DRIVER_TI_TPS65090 || drivers/ti/tps65090 || bool ||  ||
TI TPS65090
 
||
||
|- bgcolor="#eeeeee"
| DRIVER_PARADE_PS8625 || drivers/parade/ps8625 || bool ||  ||
Parade ps8625 display port to lvds bridge
 
||
 
||
||
|- bgcolor="#eeeeee"
| DRIVERS_I2C_RTD2132 || drivers/i2c/rtd2132 || bool ||  ||
Enable support for Realtek RTD2132 DisplayPort to LVDS bridge chip.
 
||
||
|- bgcolor="#eeeeee"
| DRIVERS_SIL_3114 || drivers/sil/3114 || bool || Silicon Image SIL3114 ||
It sets PCI class to IDE compatible native mode, allowing
SeaBIOS, FILO etc... to boot from it.
 
||
 
||
||
|- bgcolor="#eeeeee"
| DIGITIZER_AUTODETECT || drivers/lenovo || bool || Autodetect ||
The presence of digitizer is inferred from model number stored in
AT24RF chip.
 
||
|- bgcolor="#eeeeee"
| DIGITIZER_PRESENT || drivers/lenovo || bool || Present ||
The digitizer is assumed to be present.
 
||
|- bgcolor="#eeeeee"
| DIGITIZER_ABSENT || drivers/lenovo || bool || Absent ||
The digitizer is assumed to be absent.
 
||
|- bgcolor="#eeeeee"
| DRIVER_MAXIM_MAX77686 || drivers/maxim/max77686 || bool ||  ||
Maxim MAX77686 power regulator
 
||
 
||
||
 
|- bgcolor="#eeeeee"
| TPM || toplevel || bool ||  ||
Enable this option to enable TPM support in coreboot.
 
If unsure, say N.
 
||
|- bgcolor="#6699dd"
! align="left" | Menu: Console || || || ||
|- bgcolor="#eeeeee"
| BOOTBLOCK_CONSOLE || console || bool || Enable early (bootblock) console output. ||
Use console during the bootblock if supported
 
||
|- bgcolor="#eeeeee"
| SQUELCH_EARLY_SMP || console || bool || Squelch AP CPUs from early console. ||
When selected only the BSP CPU will output to early console.
 
Console drivers have unpredictable behaviour if multiple threads
attempt to share the same resources without a spinlock.
 
If unsure, say Y.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_SERIAL || console || bool || Serial port console output ||
Send coreboot debug output to a serial port.
 
The type of serial port driver selected based on your configuration is
shown on the following menu line. Supporting multiple different types
of UARTs in one build is not supported.
 
||
|- bgcolor="#eeeeee"
| || || (comment) || || I/O mapped, 8250-compatible ||
|- bgcolor="#eeeeee"
| || || (comment) || || memory mapped, 8250-compatible ||
|- bgcolor="#eeeeee"
| || || (comment) || || device-specific UART ||
|- bgcolor="#eeeeee"
| TTYS0_BASE || console || hex ||  ||
Map the COM port number to the respective I/O port.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_SERIAL_115200 || console || bool || 115200 ||
Set serial port Baud rate to 115200.
||
|- bgcolor="#eeeeee"
| CONSOLE_SERIAL_57600 || console || bool || 57600 ||
Set serial port Baud rate to 57600.
||
|- bgcolor="#eeeeee"
| CONSOLE_SERIAL_38400 || console || bool || 38400 ||
Set serial port Baud rate to 38400.
||
|- bgcolor="#eeeeee"
| CONSOLE_SERIAL_19200 || console || bool || 19200 ||
Set serial port Baud rate to 19200.
||
|- bgcolor="#eeeeee"
| CONSOLE_SERIAL_9600 || console || bool || 9600 ||
Set serial port Baud rate to 9600.
 
||
|- bgcolor="#eeeeee"
| TTYS0_BAUD || console || int ||  ||
Map the Baud rates to an integer.
 
||
|- bgcolor="#eeeeee"
| SPKMODEM || console || bool || spkmodem (console on speaker) console output ||
Send coreboot debug output through speaker
 
||
|- bgcolor="#eeeeee"
| CONSOLE_USB || console || bool || USB dongle console output ||
Send coreboot debug output to USB.
 
Configuration for USB hardware is under menu Generic Drivers.
 
||
|- bgcolor="#eeeeee"
| ONBOARD_VGA_IS_PRIMARY || console || bool || Use onboard VGA as primary video device ||
If not selected, the last adapter found will be used.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_NE2K || console || bool || Network console over NE2000 compatible Ethernet adapter ||
Send coreboot debug output to a Ethernet console, it works
same way as Linux netconsole, packets are received to UDP
port 6666 on IP/MAC specified with options bellow.
Use following netcat command: nc -u -l -p 6666
 
||
|- bgcolor="#eeeeee"
| CONSOLE_NE2K_DST_MAC || console || string || Destination MAC address of remote system ||
Type in either MAC address of logging system or MAC address
of the router.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_NE2K_DST_IP || console || string || Destination IP of logging system ||
This is IP address of the system running for example
netcat command to dump the packets.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_NE2K_SRC_IP || console || string || IP address of coreboot system ||
This is the IP of the coreboot system
 
||
|- bgcolor="#eeeeee"
| CONSOLE_NE2K_IO_PORT || console || hex || NE2000 adapter fixed IO port address ||
This is the IO port address for the IO port
on the card, please select some non-conflicting region,
32 bytes of IO spaces will be used (and align on 32 bytes
boundary, qemu needs broader align)
 
||
|- bgcolor="#eeeeee"
| CONSOLE_CBMEM || console || bool || Send console output to a CBMEM buffer ||
Enable this to save the console output in a CBMEM buffer. This would
allow to see coreboot console output from Linux space.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_CBMEM_BUFFER_SIZE || console || hex || Room allocated for console output in CBMEM ||
Space allocated for console output storage in CBMEM. The default
value (128K or 0x20000 bytes) is large enough to accommodate
even the BIOS_SPEW level.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_CBMEM_DUMP_TO_UART || console || bool || Dump CBMEM console on resets ||
Enable this to have CBMEM console buffer contents dumped on the
serial output in case serial console is disabled and the device
resets itself while trying to boot the payload.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_QEMU_DEBUGCON || console || bool || QEMU debug console output ||
Send coreboot debug output to QEMU's isa-debugcon device:
 
qemu-system-x86_64 \
-chardev file,id=debugcon,path=/dir/file.log \
-device isa-debugcon,iobase=0x402,chardev=debugcon
 
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_8 || console || bool || 8: SPEW ||
Way too many details.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_7 || console || bool || 7: DEBUG ||
Debug-level messages.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_6 || console || bool || 6: INFO ||
Informational messages.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_5 || console || bool || 5: NOTICE ||
Normal but significant conditions.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_4 || console || bool || 4: WARNING ||
Warning conditions.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_3 || console || bool || 3: ERR ||
Error conditions.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_2 || console || bool || 2: CRIT ||
Critical conditions.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_1 || console || bool || 1: ALERT ||
Action must be taken immediately.
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL_0 || console || bool || 0: EMERG ||
System is unusable.
 
||
|- bgcolor="#eeeeee"
| DEFAULT_CONSOLE_LOGLEVEL || console || int ||  ||
Map the log level config names to an integer.
 
||
|- bgcolor="#eeeeee"
| CMOS_POST || console || bool || Store post codes in CMOS for debugging ||
If enabled, coreboot will store post codes in CMOS and switch between
two offsets on each boot so the last post code in the previous boot
can be retrieved.  This uses 3 bytes of CMOS.
 
||
|- bgcolor="#eeeeee"
| CMOS_POST_OFFSET || console || hex || Offset into CMOS to store POST codes ||
If CMOS_POST is enabled then an offset into CMOS must be provided.
If CONFIG_HAVE_OPTION_TABLE is enabled then it will use the value
defined in the mainboard option table.
 
||
|- bgcolor="#eeeeee"
| CMOS_POST_EXTRA || console || bool || Store extra logging info into CMOS ||
This will enable extra logging of work that happens between post
codes into CMOS for debug.  This uses an additional 8 bytes of CMOS.
 
||
|- bgcolor="#eeeeee"
| CONSOLE_POST || console || bool || Show POST codes on the debug console ||
If enabled, coreboot will additionally print POST codes (which are
usually displayed using a so-called "POST card" ISA/PCI/PCI-E
device) on the debug console.
 
||
|- bgcolor="#eeeeee"
| POST_IO || console || bool || Send POST codes to an IO port ||
If enabled, POST codes will be written to an IO port.
 
||
|- bgcolor="#eeeeee"
| POST_IO_PORT || console || hex || IO port for POST codes ||
POST codes on x86 are typically written to the LPC bus on port
0x80. However, it may be desirable to change the port number
depending on the presence of coprocessors/microcontrollers or if the
platform does not support IO in the conventional x86 manner.
 
||
 
|- bgcolor="#eeeeee"
| HAVE_HARD_RESET || toplevel || bool ||  ||
This variable specifies whether a given board has a hard_reset
function, no matter if it's provided by board code or chipset code.
 
||
|- bgcolor="#eeeeee"
| HAVE_MONOTONIC_TIMER || toplevel || bool ||  ||
The board/chipset provides a monotonic timer.
 
||
|- bgcolor="#eeeeee"
| GENERIC_UDELAY || toplevel || bool ||  ||
The board/chipset uses a generic udelay function utilizing the
monotonic timer.
 
||
|- bgcolor="#eeeeee"
| TIMER_QUEUE || toplevel || bool ||  ||
Provide a timer queue for performing time-based callbacks.
 
||
|- bgcolor="#eeeeee"
| COOP_MULTITASKING || toplevel || bool ||  ||
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.
 
||
|- bgcolor="#eeeeee"
| NUM_THREADS || toplevel || int ||  ||
How many execution threads to cooperatively multitask with.
 
||
|- bgcolor="#eeeeee"
| HAVE_OPTION_TABLE || toplevel || bool ||  ||
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.
 
||
|- bgcolor="#eeeeee"
| CBFS_SIZE || toplevel || hex || Size of CBFS filesystem in ROM ||
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. Defaults to
span the whole ROM but can be overwritten to make coreboot live
alongside other components (like ChromeOS's vboot/FMAP).
 
||
|- bgcolor="#eeeeee"
| VGA || toplevel || bool ||  ||
Build board-specific VGA code.
 
||
|- bgcolor="#eeeeee"
| GFXUMA || toplevel || bool ||  ||
Enable Unified Memory Architecture for graphics.
 
||
|- bgcolor="#eeeeee"
| HAVE_ACPI_TABLES || toplevel || bool ||  ||
This variable specifies whether a given board has ACPI table support.
It is usually set in mainboard/*/Kconfig.
 
||
|- bgcolor="#eeeeee"
| HAVE_MP_TABLE || toplevel || bool ||  ||
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.
 
||
|- bgcolor="#eeeeee"
| HAVE_PIRQ_TABLE || toplevel || bool ||  ||
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.
 
||
|- bgcolor="#eeeeee"
| MAX_PIRQ_LINKS || toplevel || int ||  ||
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.
 
||
|- bgcolor="#6699dd"
! align="left" | Menu: System tables || || || ||
|- bgcolor="#eeeeee"
| GENERATE_MP_TABLE || toplevel || bool || Generate an MP table ||
Generate an MP table (conforming to the Intel MultiProcessor
specification 1.4) for this board.
 
If unsure, say Y.
 
||
|- bgcolor="#eeeeee"
| GENERATE_PIRQ_TABLE || toplevel || bool || Generate a PIRQ table ||
Generate a PIRQ table for this board.
 
If unsure, say Y.
 
||
|- bgcolor="#eeeeee"
| GENERATE_SMBIOS_TABLES || toplevel || bool || Generate SMBIOS tables ||
Generate SMBIOS tables for this board.
 
If unsure, say Y.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_SERIAL_NUMBER || toplevel || string || SMBIOS Serial Number ||
The Serial Number to store in SMBIOS structures.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_VERSION || toplevel || string || SMBIOS Version Number ||
The Version Number to store in SMBIOS structures.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_SMBIOS_MANUFACTURER || toplevel || string || SMBIOS Manufacturer ||
Override the default Manufacturer stored in SMBIOS structures.
 
||
|- bgcolor="#eeeeee"
| MAINBOARD_SMBIOS_PRODUCT_NAME || toplevel || string || SMBIOS Product name ||
Override the default Product name stored in SMBIOS structures.
 
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Payload || || || ||
|- bgcolor="#eeeeee"
| PAYLOAD_NONE || toplevel || bool || None ||
Select this option if you want to create an "empty" coreboot
ROM image for a certain mainboard, i.e. a coreboot ROM image
which does not yet contain a payload.
 
For such an image to be useful, you have to use 'cbfstool'
to add a payload to the ROM image later.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_ELF || toplevel || bool || An ELF executable payload ||
Select this option if you have a payload image (an ELF file)
which coreboot should run as soon as the basic hardware
initialization is completed.
 
You will be able to specify the location and file name of the
payload image later.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_LINUX || toplevel || bool || A Linux payload ||
Select this option if you have a Linux bzImage which coreboot
should run as soon as the basic hardware initialization
is completed.
 
You will be able to specify the location and file name of the
payload image later.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_SEABIOS || toplevel || bool || SeaBIOS ||
Select this option if you want to build a coreboot image
with a SeaBIOS payload. If you don't know what this is
about, just leave it enabled.
 
See http://coreboot.org/Payloads for more information.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_FILO || toplevel || bool || FILO ||
Select this option if you want to build a coreboot image
with a FILO payload. If you don't know what this is
about, just leave it enabled.
 
See http://coreboot.org/Payloads for more information.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_GRUB2 || toplevel || bool || GRUB2 ||
Select this option if you want to build a coreboot image
with a GRUB2 payload. If you don't know what this is
about, just leave it enabled.
 
See http://coreboot.org/Payloads for more information.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_TIANOCORE || toplevel || bool || Tiano Core ||
Select this option if you want to build a coreboot image
with a Tiano Core payload. If you don't know what this is
about, just leave it enabled.
 
See http://coreboot.org/Payloads for more information.
 
||
|- bgcolor="#eeeeee"
| SEABIOS_STABLE || toplevel || bool || 1.7.5 ||
Stable SeaBIOS version
||
|- bgcolor="#eeeeee"
| SEABIOS_MASTER || toplevel || bool || master ||
Newest SeaBIOS version
 
||
|- bgcolor="#eeeeee"
| SEABIOS_PS2_TIMEOUT || toplevel || int || PS/2 keyboard controller initialization timeout (milliseconds) ||
Some PS/2 keyboard controllers don't respond to commands immediately
after powering on. This specifies how long SeaBIOS will wait for the
keyboard controller to become ready before giving up.
 
||
|- bgcolor="#eeeeee"
| SEABIOS_THREAD_OPTIONROMS || toplevel || bool || Hardware init during option ROM execution ||
Allow hardware init to run in parallel with optionrom execution.
 
This can reduce boot time, but can cause some timing
variations during option ROM code execution. It is not
known if all option ROMs will behave properly with this option.
 
||
|- bgcolor="#eeeeee"
| SEABIOS_MALLOC_UPPERMEMORY || toplevel || bool ||  ||
Use the "Upper Memory Block" area (0xc0000-0xf0000) for internal
"low memory" allocations.  If this is not selected, the memory is
instead allocated from the "9-segment" (0x90000-0xa0000).
This is not typically needed, but may be required on some platforms
to allow USB and SATA buffers to be written correctly by the
hardware.  In general, if this is desired, the option will be
set to 'N' by the chipset Kconfig.
 
||
|- bgcolor="#eeeeee"
| SEABIOS_VGA_COREBOOT || toplevel || bool || Include generated option rom that implements legacy VGA BIOS compatibility ||
Coreboot can initialize the GPU of some mainboards.
 
After initializing the GPU, the information about it can be passed to the payload.
Provide an option rom that implements this legacy VGA BIOS compatibility requirement.
 
||
|- bgcolor="#eeeeee"
| GRUB2_MASTER || toplevel || bool || HEAD ||
Newest GRUB2 version
 
||
|- bgcolor="#eeeeee"
| FILO_STABLE || toplevel || bool || 0.6.0 ||
Stable FILO version
 
||
|- bgcolor="#eeeeee"
| FILO_MASTER || toplevel || bool || HEAD ||
Newest FILO version
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_FILE || toplevel || string || Payload path and filename ||
The path and filename of the ELF executable file to use as payload.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_FILE || toplevel || string || Linux path and filename ||
The path and filename of the bzImage kernel to use as payload.
 
||
|- bgcolor="#eeeeee"
| PAYLOAD_FILE || toplevel || string || Tianocore firmware volume ||
The result of a corebootPkg build
 
||
|- bgcolor="#eeeeee"
| COMPRESSED_PAYLOAD_LZMA || toplevel || bool || Use LZMA compression for payloads ||
In order to reduce the size payloads take up in the ROM chip
coreboot can compress them using the LZMA algorithm.
 
||
|- bgcolor="#eeeeee"
| LINUX_COMMAND_LINE || toplevel || string || Linux command line ||
A command line to add to the Linux kernel.
 
||
|- bgcolor="#eeeeee"
| LINUX_INITRD || toplevel || string || Linux initrd ||
An initrd image to add to the Linux kernel.
 
||
 
|- bgcolor="#6699dd"
! align="left" | Menu: Debugging || || || ||
|- bgcolor="#eeeeee"
| GDB_STUB || toplevel || bool || GDB debugging support ||
If enabled, you will be able to set breakpoints for gdb debugging.
See src/arch/x86/lib/c_start.S for details.
 
||
|- bgcolor="#eeeeee"
| GDB_WAIT || toplevel || bool || Wait for a GDB connection ||
If enabled, coreboot will wait for a GDB connection.
 
||
|- bgcolor="#eeeeee"
| FATAL_ASSERTS || toplevel || bool || Halt when hitting a BUG() or assertion error ||
If enabled, coreboot will call hlt() on a BUG() or failed ASSERT().
 
||
|- bgcolor="#eeeeee"
| DEBUG_CBFS || toplevel || bool || Output verbose CBFS debug messages ||
This option enables additional CBFS related debug messages.
 
||
|- bgcolor="#eeeeee"
| DEBUG_RAM_SETUP || toplevel || bool || Output verbose RAM init debug messages ||
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.
 
||
|- bgcolor="#eeeeee"
| DEBUG_CAR || toplevel || bool || Output verbose Cache-as-RAM debug messages ||
This option enables additional CAR related debug messages.
||
|- bgcolor="#eeeeee"
| DEBUG_PIRQ || toplevel || bool || Check PIRQ table consistency ||
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| DEBUG_SMBUS || toplevel || bool || Output verbose SMBus debug messages ||
This option enables additional SMBus (and SPD) debug messages.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| DEBUG_SMI || toplevel || bool || Output verbose SMI debug messages ||
This option enables additional SMI related debug messages.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| DEBUG_SMM_RELOCATION || toplevel || bool || Debug SMM relocation code ||
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.
 
||
|- bgcolor="#eeeeee"
| DEBUG_MALLOC || toplevel || bool || Output verbose malloc debug messages ||
This option enables additional malloc related debug messages.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| DEBUG_ACPI || toplevel || bool || Output verbose ACPI debug messages ||
This option enables additional ACPI related debug messages.
 
Note: This option will slightly increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| REALMODE_DEBUG || toplevel || bool || Enable debug messages for option ROM execution ||
This option enables additional x86emu related debug messages.
 
Note: This option will increase the time to emulate a ROM.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG || toplevel || bool || Output verbose x86emu debug messages ||
This option enables additional x86emu related debug messages.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_JMP || toplevel || bool || Trace JMP/RETF ||
Print information about JMP and RETF opcodes from x86emu.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_TRACE || toplevel || bool || Trace all opcodes ||
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.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_PNP || toplevel || bool || Log Plug&Play accesses ||
Print Plug And Play accesses made by option ROMs.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_DISK || toplevel || bool || Log Disk I/O ||
Print Disk I/O related messages.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_PMM || toplevel || bool || Log PMM ||
Print messages related to POST Memory Manager (PMM).
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_VBE || toplevel || bool || Debug VESA BIOS Extensions ||
Print messages related to VESA BIOS Extension (VBE) functions.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_INT10 || toplevel || bool || Redirect INT10 output to console ||
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.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_INTERRUPTS || toplevel || bool || Log intXX calls ||
Print messages related to interrupt handling.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_CHECK_VMEM_ACCESS || toplevel || bool || Log special memory accesses ||
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.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_MEM || toplevel || bool || Log all memory accesses ||
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.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_IO || toplevel || bool || Log IO accesses ||
Print I/O accesses made by option ROM.
 
Note: This option will increase the size of the coreboot image.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| X86EMU_DEBUG_TIMINGS || toplevel || bool || Output timing information ||
Print timing information needed by i915tool.
 
If unsure, say N.
 
||
|- bgcolor="#eeeeee"
| DEBUG_TPM || toplevel || bool || Output verbose TPM debug messages ||
This option enables additional TPM related debug messages.
 
||
|- bgcolor="#eeeeee"
| DEBUG_SPI_FLASH || toplevel || bool || Output verbose SPI flash debug messages ||
This option enables additional SPI flash related debug messages.
 
||
|- bgcolor="#eeeeee"
| DEBUG_USBDEBUG || toplevel || bool || Output verbose USB 2.0 EHCI debug dongle messages ||
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.
 
||
|- bgcolor="#eeeeee"
| DEBUG_INTEL_ME || toplevel || bool || Verbose logging for Intel Management Engine ||
Enable verbose logging for Intel Management Engine driver that
is present on Intel 6-series chipsets.
||
|- bgcolor="#eeeeee"
| TRACE || toplevel || bool || Trace function calls ||
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 releated functions
are omitted from trace to have good looking console dumps.
 
||
|- bgcolor="#eeeeee"
| DEBUG_COVERAGE || toplevel || bool || Debug code coverage ||
If enabled, the code coverage hooks in coreboot will output some
information about the coverage data that is dumped.
 
||
 
|- bgcolor="#eeeeee"
| POWER_BUTTON_DEFAULT_ENABLE || toplevel || bool ||  ||
Select when the board has a power button which can optionally be
disabled by the user.
 
||
|- bgcolor="#eeeeee"
| POWER_BUTTON_DEFAULT_DISABLE || toplevel || bool ||  ||
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.
 
||
|- bgcolor="#eeeeee"
| POWER_BUTTON_FORCE_ENABLE || toplevel || bool ||  ||
Select when the board requires that the power button is always
enabled.
 
||
|- bgcolor="#eeeeee"
| POWER_BUTTON_FORCE_DISABLE || toplevel || bool ||  ||
Select when the board requires that the power button is always
disabled, e.g. when it has been hardwired to ground.
 
||
|- bgcolor="#eeeeee"
| POWER_BUTTON_IS_OPTIONAL || toplevel || bool ||  ||
Internal option that controls ENABLE_POWER_BUTTON visibility.
 
||
|- bgcolor="#eeeeee"
| REG_SCRIPT || toplevel || bool ||  ||
Internal option that controls whether we compile in register scripts.
 
||
|- bgcolor="#eeeeee"
| MAX_REBOOT_CNT || toplevel || int ||  ||
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.
 
||
|}

Latest revision as of 20:02, 9 June 2018

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