mb/asus/p8z77-m: Enable Port 80 UART

Copied this bit from asus/p8z77-m_pro, without it a GRUB2 payload will
get stuck in an endless loop showing

Unknown key 0xff detected

whenever there is an USB device (such as a keyboard) connected.
In this mode GRUB2 is so busy showing this message repeatedly that no
other keypress ever gets handled, and thus no other remedy is possible
than a reset via mb pins and unplugging the USB device.

Signed-off-by: Fabian Groffen <grobian@gentoo.org>
Change-Id: Iebd433e2762a69241257e1b4f859319536a8d8f5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/75138
Reviewed-by: Keith Hui <buurin@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Fabian Groffen
2023-05-11 15:32:58 +02:00
committed by Felix Held
parent 8068f941a9
commit f62b0c332b

View File

@@ -80,6 +80,7 @@ chip northbridge/intel/sandybridge
end
device pnp 2e.609 off end # GPIO 6
device pnp 2e.709 off end # GPIO 7
device pnp 2e.14 on end # Port 80 UART
end
chip drivers/pc80/tpm
device pnp 4e.0 on end # TPM