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coreboot-kgpe-d16/util/cbfstool/default-x86.fmd

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build system: Switch to fmap based firmware layout We still add a master header for compatibility purposes, and the default layouts don't cover anything non-coreboot (eg. IFD regions) yet. The default layouts can be overridden by specifying an fmd file, from which the fmap is generated. Future work: - map IFD regions to fmap regions - non-x86: build minimalistic trampolines that jump into the first cbfs file, so the bootblock can be part of CBFS instead of reserving a whole 64K for it. - teach coreboot's cbfs code to work without the master header - teach coreboot's cbfs code to work on different fmap regions Change-Id: Id1085dcd5107cf0e02e8dc1e77dc0dd9497a819c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/11692 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-09-16 18:10:52 +02:00
# layout for firmware residing at top of 4GB address space
# +-------------+ <-- 4GB - ROM_SIZE / start of flash
# | unspecified |
# +-------------+ <-- 4GB - BIOS_SIZE
# | FMAP |
# +-------------+ <-- 4GB - BIOS_SIZE + FMAP_SIZE
# | CBFS |
# +-------------+ <-- 4GB / end of flash
FLASH@##ROM_BASE## ##ROM_SIZE## {
BIOS@##BIOS_BASE## ##BIOS_SIZE## {
FMAP@##FMAP_BASE## ##FMAP_SIZE##
console/flashsconsole: Add spi flash console for debugging If CONSOLE_SPI_FLASH config is enabled, we write the cbmem messages to the 'CONSOLE' area in FMAP which allows us to grab the log when we read the flash. This is useful when you don't have usb debugging, and UART lines are hard to find. Since a failure to boot would require a hardware flasher anyways, we can get the log at the same time. This feature should only be used when no alternative is found and only when we can't boot the system, because excessive writes to the flash is not recommended. This has been tested on purism/librem13 v2 and librem 15 v3 which run Intel Skylake hardware. It has not been tested on other archs or with a driver other than the fast_spi. Change-Id: I74a297b94f6881d8c27cbe5168f161d8331c3df3 Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm> Reviewed-on: https://review.coreboot.org/19849 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com>
2017-05-11 16:36:29 +02:00
##CONSOLE_ENTRY##
build system: Switch to fmap based firmware layout We still add a master header for compatibility purposes, and the default layouts don't cover anything non-coreboot (eg. IFD regions) yet. The default layouts can be overridden by specifying an fmd file, from which the fmap is generated. Future work: - map IFD regions to fmap regions - non-x86: build minimalistic trampolines that jump into the first cbfs file, so the bootblock can be part of CBFS instead of reserving a whole 64K for it. - teach coreboot's cbfs code to work without the master header - teach coreboot's cbfs code to work on different fmap regions Change-Id: Id1085dcd5107cf0e02e8dc1e77dc0dd9497a819c Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: https://review.coreboot.org/11692 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
2015-09-16 18:10:52 +02:00
COREBOOT(CBFS)@##CBFS_BASE## ##CBFS_SIZE##
}
}