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path: root/src/mainboard/google/volteer/variants/eldrid/gpio.c
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2020-09-28mb/google/volteer/variants/eldrid: Configure GPP_S4 and GPP_S5nick_xr_chen
GPP_S4 and GPP_S5 use as DMIC pins that need to be defined as NF2 BUG=b:168564129 Signed-off-by: nick_xr_chen <nick_xr_chen@wistron.corp-partner.google.com> Change-Id: Ia1fca960ac85f253882f0aa68b370eed49ac67b7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/45689 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com> Reviewed-by: Ravishankar Sarawadi <ravishankar.sarawadi@intel.com>
2020-09-18mb/google/volteer: Remove redundant GPIO decls in EldridTim Wawrzynczak
GPP_A19 and GPP_A20 are already declared as NC in the baseboard. Change-Id: I02f5751a70b51a197320b865d18da3a4ffeb87f7 Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/45485 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-09-17mb/google/volteer/variants/eldrid: Configure DP_HPD as PAD_NCnick_xr_chen
GPP_A19(DP_HPD1) and GPP_A20(DP_HPD2) were configured native function (NF1) without internal pull-down which wrongly presents HPD interrupts. This change configures GPP_A19 and GPP_A20 to be no connection and disables DdiPort1Hpd and DdiPort2Hpd. BUG=b:165893624, b:168090618 Signed-off-by: nick_xr_chen <nick_xr_chen@wistron.corp-partner.google.com> Change-Id: I31b25be1c9248debf855435c7b688b358e2cd57e Reviewed-on: https://review.coreboot.org/c/coreboot/+/45246 Reviewed-by: Scott Chao <scott_chao@wistron.corp-partner.google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-09-09mb/google/volteer/variants/eldrid: add memory.c for ddr4 supportnick_xr_chen
Add new memory.c to support DDR4 memory types. Use the new meminit_ddr() and variant_memory_sku() for eldrid variant code on memory.c The initial settings override the baseboard from volteer and fine tune gpio.c and overridetree.cb on eldrid's configuration. BUG=b:161772961 TEST='emerge-volteer coreboot chromeos-bootimage' and verify that Eldrid can boots. NOTE that tests the ddr4 side of the implementation. Change-Id: I2c7b30093a8d85bac5aba5b83768af5eb36c4f70 Signed-off-by: Nick Chen <nick_xr_chen@wistron.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44632 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Caveh Jalali <caveh@chromium.org>