coreboot-kgpe-d16/src/southbridge
Angel Pons a575759c40 sb/intel/lynxpoint/pcie.c: Ensure OBFF is disabled
Setting registers 64h[19:18] = 2 and 68h[14:13] = 3 enables OBFF, and
setting registers 64h[19:18] = 0 and 68h[14:13] = 0 disables OBFF.
Register at offset 0x64 is DCAP2, and offset 0x68 is DCTL2.

However, current code doesn't account for this. The result is that
register 64h[19:18] = 2 and 68h[14:13] = 0, which means the hardware is
OBFF-capable but support is disabled, which makes no sense. Given that
reference code and Broadwell both disable OBFF, disable it here too.

Change-Id: I6c1cafdb435ee22909b077128b3ae5bde5543039
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47240
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
2020-11-07 14:20:38 +00:00
..
amd amdfwtool: Use shell command to get depend file list 2020-11-06 13:06:33 +00:00
intel sb/intel/lynxpoint/pcie.c: Ensure OBFF is disabled 2020-11-07 14:20:38 +00:00
ricoh/rl5c476 src/southbridge: Drop unneeded empty lines 2020-09-21 16:29:35 +00:00
ti