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authorNicholas Chin <nic.c3.14@gmail.com>2024-03-04 18:05:43 -0700
committerFelix Singer <service+coreboot-gerrit@felixsinger.de>2024-08-27 00:28:43 +0000
commitfef29fc56ffbfb60af2751b07427191a0e14b211 (patch)
tree18dc80adb8fe770b2dbd1fb0dd86f9d4c3b30a53 /util/apcb
parent962152dcbfd46b249d8ea0ede287ebb78bd97d1e (diff)
mb/dell: Add Latitude E5420 (Sandy Bridge)
Mainboard is Krug 14". I do not physically have this system; someone with physical access to one sent me the output of autoport which I then modified to produce this port. I was also sent the VBT binary, which was obtained from `/sys/kernel/debug/dri/0/i915_vbt` while running version A02 of the vendor firmware. This was originally tested and found to be working as a standalone board port in Libreboot, but this variant based port in upstream coreboot has not been tested. This can be internally flashed by sending a command to the EC, which causes the EC to pull the FDO pin low and the firmware to skip setting up any chipset based write protections [1]. The EC is the SMSC MEC5055, which seems to be compatible with the existing MEC5035 code. [1] https://gitlab.com/nic3-14159/dell-flash-unlock Change-Id: I0283653156083768e1fd451bcf539b4e028589f4 Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/82129 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
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