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Add microcode blob processing

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When microcode storage in CBFS is enabled, the make system is supposed
to generate the microcode blob and place it into the generated ROM
image as a CBFS component.

The microcode source representation does not change: it is still an
array of 32 bit constants. This new addition compiles the array into a
separate object file and then strips all sections but data.

The raw data section is then included into CBFS as a file named
'microcode_blob.bin' of type 0x53, which is assigned to microcode
storage.

Change-Id: I84ae040be52f520b106e3471c7e391e64d7847d9
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: http://review.coreboot.org/1295
Tested-by: build bot (Jenkins)
This commit is contained in:
Vadim Bendebury 2012-06-19 08:34:51 -07:00 • committed by Stefan Reinauer
commit 39fea6e2a8
3 changed files with 42 additions and 0 deletions
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6
src/arch/x86/Makefile.inc
View file

@ -34,6 +34,12 @@ cmos_layout.bin-type = 0x01aa
OPTION_TABLE_H:=$(obj)/option_table.h
endif
ifeq ($(CONFIG_MICROCODE_IN_CBFS),y)
cbfs-files-y += microcode_blob.bin
microcode_blob.bin-file = $(obj)/microcode_blob.bin
microcode_blob.bin-type = 0x53
endif
#######################################################################
# Build the final rom image
COREBOOT_ROM_DEPENDENCIES:=