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path: root/src/mainboard/google/zork/variants/berknip/gpio.c
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2020-08-31mb/google/zork: update GPIO config for berknipKevin Chiu
berknip does not support stylus, config AGPIO4/5 to NC to prevent unexpected wake event for s3. BUG=b:162376046 BRANCH=zork TEST=emerge-zork coreboot Change-Id: I8d9b711ce1d7300181fe496d490dd33b38bc5983 Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44893 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-06mb/google/zork: Configure GPIO_89 as PAD_NCFurquan Shaikh
GPIO_89 was marked as EN_DEV_BEEP_L in pre-v3.6 schematics, but it was never really used on any of the zork variants. Starting with v3.6, GPIO_89 is left unused in schematics. This change configures GPIO_89 as PAD_NC in baseboard GPIO table. Since EN_DEV_BEEP_L still needs to be driven high to allow speakers to work, GPIO_89 is configured as PAD_GPO driven high on pre-v3.6 schematics. BUG=b:62108046 Change-Id: I026cd6cb598667ce6e115c3ec9357a6a56051d39 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44190 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-06mb/google/zork: Add touchscreen power controlFurquan Shaikh
This change adds support for touchscreen power control using: * GPIO_90 for trembyle based boards * GPIO_32 for dalboz based boards By default, baseboard tables configure these GPIOs as PAD_GPO driven low and override trees expose these pads as enable_gpio to be used by ACPI power resource. In order to support pre-v3.6 boards, override tables configure these pads as PAD_NC and drop the enable_gpio setting from device tree based on board version. BUG=b:161935640, b:162747210 Change-Id: Iba5e36b65b44ea11613b4d5fc8f13ce6433f83ab Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44193 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-08-06mb/google/zork: Switch USI_RESET to active low polarity for v3.6+Furquan Shaikh
v3.6 of reference schematics have switched the polarity of reset signal to touchscreen controller from active high to active low. This change updates the default configuration in baseboard gpio tables to set the reset GPIO to output low and override tables in variants to set the reset GPIO to output high. Additionally, devicetree by default exposes ACTIVE_LOW configuration for reset GPIO. In order to support pre-v3.6 boards, reset GPIO is updated to ACTIVE_HIGH based on board version. BUG=b:161937506 Change-Id: I092f274d8eb1920a1cd6d3eccbe8f26b0b28928a Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/44192 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-07-23mb/google/zork: Configure all pads in ramstage for trembyle referenceFurquan Shaikh
This change configures all missing pads in ramstage for trembyle reference. This ensures that the state of all pads is set correctly for the payload/OS. Also, all the pads for the platform are configured in baseboard gpio table in ramstage to ensure that variants can override any pads if required. BUG=b:154351731 Change-Id: Idd827b6a4f995546493596f22249f8699bdf526b Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43697 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2020-07-21mb/googlz/zork: Drop unnecessary PULL_UPs in variant overridesFurquan Shaikh
This change drops the pulls configured on override GPIOs as they already have external pull-ups. Also, pads which are unused are configured as PAD_NC. BUG=b:154351731 Change-Id: I8da5d51af25bbe2694c21ecb0868c9cc387243cb Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43562 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-06-25mb/google/zork: Update ramstage GPIOs for v3 schematics for trembyle referenceFurquan Shaikh
This change updates the baseboard GPIO table in ramstage to match v3 version of trembyle reference schematics. All variants using this reference are accordingly updated to configure the GPIOs that changed as part of v3 schematics. BUG=b:157088093, b:154676993, b:157098434 TEST=Compiles Signed-off-by: Martin Roth <martinroth@chromium.org> Signed-off-by: Furquan Shaikh <furquan@google.com> Change-Id: Ib1d6ee2e995c1fca229c20ea63da9a45fb89f64a Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2251393 Reviewed-by: Aaron Durbin <adurbin@google.com> Commit-Queue: Furquan Shaikh <furquan@chromium.org> Tested-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/42724 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-05-27mb/google/zork: Add Picasso based Zork mainboard and variantsRaul E Rangel
This is a copy of the mb/google/zork directory from the chromiumos coreboot-zork branch. This was from commit 29308ac8606. See https://chromium.googlesource.com/chromiumos/third_party/coreboot/+/29308ac8606/src/mainboard/google/zork Changes: * Minor changes to make the board build. * Add bootblock.c. * Modify romstage.c * Removed the FSP_X configs from zork/Kconfig since they should be set in picasso/Kconfig. picasso/Kconfig doesn't currently define the binaries since they haven't been published. To get a working build a custom config that sets FSP_X_FILE is required. BUG=b:157140753 TEST=Build trembyle and boot to OS Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: I3933fa54e3f603985a0818852a1c77d8e248484f Reviewed-on: https://review.coreboot.org/c/coreboot/+/41581 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>