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authorJulius Werner <jwerner@chromium.org>2018-04-24 16:39:20 -0700
committerJulius Werner <jwerner@chromium.org>2018-08-07 20:55:33 +0000
commit90f025b2762edbac0516cb42f4fc7c9c28f260fa (patch)
treebd4c92e57766bb5686d6b69538b1ebe5d220189e /src/arch/mips
parentc49ab459bc726197208134ba5585522ce4d9cad3 (diff)
sdm845: Implement bitbang UART for bootblock
This patch replaces the UART in the bootblock of SDM845 with a bitbang implementation. Since SDM845 hardware UART needs a firmware blob loaded into it before it becomes usable, it is not really suited for use in the bootblock (since by the time we can read blobs from SPI, the bootblock is essentially over anyway). This solution allows us to still have some console output during early SoC initialization. Change-Id: I0c252ec83a7993edce5c4debc687f1fdd0d7b36d Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/25813 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/arch/mips')
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