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authorMarshall Dawson <marshalldawson3rd@gmail.com>2017-03-17 15:07:49 -0600
committerMartin Roth <martinroth@google.com>2017-03-28 22:30:36 +0200
commit7fd0bc84ffe3384d0f5b4e8a135ae042ae3aa929 (patch)
treef977caa590ba187c495c34cb8ab38f5ffe3faa10 /Documentation/POSTCODES
parentc6be0d854a99120e0faa224af23e25679790c419 (diff)
amd/pi/hudson: Reduce amdfw space requirement
Change the current implementation so that multiple PSP directory structures are not included, saving 448 KB. AMD created a mechanism so that multiple generations of APUs, in identical packages, may be supportable in one BIOS image. The PSP identifies the correct directory table by checking one of two pointers in the Embedded Firmware structure. Coreboot doesn't implement this capability, however it has been constructing amdfw.rom with two identical directory tables and two copies of each PSP blob. Tested on Bettong (Merlin Falcon / Carrizo) and Jadeite (Stoney). Original-Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Original-Reviewed-by: Marc Jones <marcj303@gmail.com> (cherry picked from commit 11dfc3f621344db66d92b61d72927128ea48685f) Change-Id: I139f3bfdb319af803fef64e7bd848e95945f41aa Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/18990 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>
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