summaryrefslogtreecommitdiff
path: root/src/mainboard/getac/p470
diff options
context:
space:
mode:
authorJohn Zhao <john.zhao@intel.com>2020-08-14 21:18:27 -0700
committerTim Wawrzynczak <twawrzynczak@chromium.org>2020-08-18 15:57:50 +0000
commit90e56267cf158af3d692b709f7f41120130234a4 (patch)
treeebdb95dd9a905662fae56065a28f87cc442b0f58 /src/mainboard/getac/p470
parentaa902036d0cc8dd48a36fd7cf5fd8e22930b7afd (diff)
mb/google/volteer: Configure DP_HPD as PAD_NC and disable DdiPortHpd
GPP_A19(DP_HPD1) and GPP_A20(DP_HPD2) were configured native function (NF1) without internal pull-down which wrongly presents HPD interrupts. DP_HPD had been removed for EVT design as those events are through eSPI. This change configures GPP_A19 and GPP_A20 to be no connection and disables DdiPort1Hpd and DdiPort2Hpd. BUG=b:162566436 TEST=Booted to kernel and verified no kernel HPD pins assertion message on Volteer EVT board. Signed-off-by: John Zhao <john.zhao@intel.com> Change-Id: Ia3245741b776b75073d2b43d36c8ea40b476b3ed Reviewed-on: https://review.coreboot.org/c/coreboot/+/44501 Reviewed-by: Caveh Jalali <caveh@chromium.org> Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/mainboard/getac/p470')
0 files changed, 0 insertions, 0 deletions