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authorRavi Sarawadi <ravishankar.sarawadi@intel.com>2020-09-02 07:03:47 -0700
committerPatrick Georgi <pgeorgi@google.com>2020-09-14 07:09:11 +0000
commit73cd3e704fde61e287f6fbdd6d371ed19e41f15d (patch)
tree00c42fb4937c1924705987221a3bf7f8a8678d9f /src/soc/amd
parent47c4bf557113f20f8fbf9878d44697694a99d439 (diff)
mb/google/delbin: 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 Delbin board. Signed-off-by: Ravi Sarawadi <ravishankar.sarawadi@intel.com> Change-Id: Ifdef8ee438276678258b75d2fb70c6dfc7ee0a33 Reviewed-on: https://review.coreboot.org/c/coreboot/+/45031 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Caveh Jalali <caveh@chromium.org>
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