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path: root/src/mainboard/google/volteer/variants/voema/gpio.c
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2021-01-16mb/google/volteer: do UART pad config at board-levelMichael Niewöhner
UART pad configuration should not be done in common code, because that may cause short circuits, when the user sets a wrong UART index. Thus, add the corresponding pads to the early UART gpio table for the board as a first step. Common UART pad config code then gets dropped in CB:48829. Also switch to `bootblock_mainboard_early_init` to configure the pads in early bootblock before console initialization, to make the console work as early as possible. The board does not do any other gpio configuration in bootblock, so this should not influence behaviour in a negative way (e.g. breaking overrides). Change-Id: I5e07584d7857052c7a9388331a475f5a073af038 Signed-off-by: Michael Niewöhner <foss@mniewoehner.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/49425 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2021-01-11mb/google/volteer: Set FORCE_PWR low at boot timeJohn Zhao
While FORCE_PWR is set high, it prevents retimer from entering low power state. S0ix failure occurs while USB4 Gatkex is connected on Port-0. This change sets FORCE_PWR(GPP_H10) low. This FORCE_PWR GPIO will be toggled by kernel through DSM method while updating retimer firmware. BUG=b:174166586 Cq-Depend: chromium:2594438 TEST=Verifed s0ix cycles with USB4 Gatkex connected on Port-0. Signed-off-by: John Zhao <john.zhao@intel.com> Change-Id: Ie4b442e1078379c522a94bfdc00cd99e6f9b8170 Reviewed-on: https://review.coreboot.org/c/coreboot/+/48649 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
2020-12-11mb/google/volteer: Assert BT_DISABLE_L (GPP_A13) in early_gpio_tableAlex Levin
BT_DISABLE_L (GPP_A13) has to asserted in early_gpio_table to reset bluetooth on reset. BUG=b:171085081 TEST=volteer2 boots; scope shows assertion of the signal Change-Id: Iaa5799e9cab69c074b7920604c8a6c85ad07358a Signed-off-by: Alex Levin <levinale@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/48518 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org> Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
2020-11-22mb/google/volteer/var/voema: Update gpio and devicetree settingsDavid Wu
Based on latest schematic and gpio table of voema, update gpio and devicetree settings for voema Proto. BUG=b:169356808 TEST=FW_NAME=voema emerge-volteer coreboot chromeos-bootimage Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com> Change-Id: I719a9948ed0d60e1de5368e096ff60c2345803b0 Reviewed-on: https://review.coreboot.org/c/coreboot/+/47667 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Frans Hendriks <fhendriks@eltan.com> Reviewed-by: Caveh Jalali <caveh@chromium.org> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>