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The romstage main() entry point on arm64 boards is usually in mainboard
code, but there are a handful of lines that are always needed in there
and not really mainboard specific (or chipset specific). We keep arguing
every once in a while that this isn't ideal, so rather than arguing any
longer let's just fix it. This patch moves the main() function into arch
code with callbacks that the platform can hook into. (This approach can
probably be expanded onto other architectures, so when that happens this
file should move into src/lib.)
Tested on Cheza and Kevin. I think the approach is straight-forward
enough that we can take this without testing every board. (Note that in
a few cases, this delays some platform-specific calls until after
console_init() and exception_init()... since these functions don't
really take that long, especially if there is no serial console
configured, I don't expect this to cause any issues.)
Change-Id: I7503acafebabed00dfeedb00b1354a26c536f0fe
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/28199
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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On kukui board, the eMMC is routed to EC for boot ROM emulation when
loading bootblock, and should be set back to real eMMC as early as
possible after bootblock is loaded.
BUG=b:80501386
TEST=make; boots and verified BOOTBLOCK_EN_L GPIO is enabled.
BRANCH=None
Change-Id: Ifefb2e26ed048c38595907cc0875757410129828
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/27601
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch sets SPI flash related configs and inits SPI bus 1 to
support SPI NOR flash.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui
Change-Id: I1a18a456f41a7c7daec954e961c9fbee3650493d
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/27499
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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MT8183 only allows booting from eMMC, so we have to do eMMC emulation
from an external source, for example EC, which makes the size of
bootblock very important.
A fully functional bootblock (that can boot into verstage or romstage)
is about 38000 bytes. If self decompression (CONFIG_COMPRESS_BOOTBLOCK)
is enabled, only 25088 (66%) bytes are needed.
Inspired from crosreview.com/1070018.
BUG=b:80501386
TEST=manually flashed into kukui and boots into romstage.
Change-Id: I7a739866a4ea3bcafe2ff7b9e88d5ed00f3f3e40
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://review.coreboot.org/27599
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
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In order to get better performance, map dram as cached after dram ready
in romstage.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui. Need a futher check after dram
calibration code ready.
Change-Id: Ie541fe08ee1d5b260abbabc0a5c18fb04e602b9c
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/27304
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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BUG=b:80501386
BRANCH=none
TEST=timer and uart work fine
Change-Id: I08644892d34925574f791b000b0035d5afad7022
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/26722
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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