soc/amd/stoneyridge/northbridge.c: Create a way to change eDP training value

The careena board needs different video settings to pass eye diagram test,
which does not affect negatively the grunt board. In preparation for new
VBIOS, create code that allows changing eDP training parameter.

BUG=b:111673328
TEST=Tested in child patch.

Change-Id: Ic0452618bfc5e05b9ef8280bb8ba398ec7b4ce95
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/27625
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

0 files changed, 0 insertions, 0 deletions