From 847289d49e8b0ab375f1d8dc9eaf6ecf707aa21f Mon Sep 17 00:00:00 2001 From: Krishna Prasad Bhat Date: Sat, 30 Mar 2019 10:42:23 +0530 Subject: mb/google/hatch: Unlock GPIO pads GPP_A12 is being used as FPMCU_RST in hatch. This GPIO is being padlocked in FSP and cannot used in kernel. Hence unlock the GPIO pads to export this pin in kernel to be used as FPMCU_RST. BUG=b:128686027 BRANCH=None TEST=Read Pad Configuration Lock (PADCFGLOCK_GPP_A_0) register. localhost /sys/class/gpio # iotools mmio_read32 0xfd6e0080 0x00000000 localhost /sys/class/gpio # echo 212 > export Change-Id: Ie0439956e6c8e386435e535665ccaf2ab82adeb0 Signed-off-by: Krishna Prasad Bhat Reviewed-on: https://review.coreboot.org/c/coreboot/+/32126 Reviewed-by: Furquan Shaikh Tested-by: build bot (Jenkins) --- src/mainboard/google/hatch/variants/baseboard/devicetree.cb | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mainboard/google/hatch/variants/baseboard/devicetree.cb b/src/mainboard/google/hatch/variants/baseboard/devicetree.cb index dc7cc24916..984852f6cf 100644 --- a/src/mainboard/google/hatch/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/hatch/variants/baseboard/devicetree.cb @@ -73,6 +73,8 @@ chip soc/intel/cannonlake register "DdiPortBHpd" = "1" register "DdiPortCHpd" = "1" register "tcc_offset" = "10" # TCC of 90C + # Unlock GPIO pads + register "PchUnlockGpioPads" = "1" register "usb2_ports[0]" = "USB2_PORT_TYPE_C(OC2)" # Type-C Port 0 register "usb2_ports[1]" = "USB2_PORT_TYPE_C(OC2)" # Type-C Port 1 -- cgit v1.2.3