summaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorSean Rhodes <sean@starlabs.systems>2021-12-20 21:35:05 +0000
committerFelix Held <felix-coreboot@felixheld.de>2022-01-04 11:53:07 +0000
commit51ab5e454d32c24d54e5ac2e5d23dd308fa953e5 (patch)
tree42bab327c18825a505bab3d20ec7991372565f2f /src
parent58f6a5d7445c0215358b429a0a3b8a8f18097e46 (diff)
mb/starlabs/labtop: Enable I2C4
Enable unused I2C4 PCI device (00:19.0) so that UART2 (00:19.2) can be enumerated properly, using `PchSerialIoSkipInit` to prevent FSP-S from configuring anything regarding I2C4 (e.g. GPIOs). Signed-off-by: Sean Rhodes <sean@starlabs.systems> Change-Id: I9c2c4f67672ba5667ebdae9ecc01054449dd3dfd Reviewed-on: https://review.coreboot.org/c/coreboot/+/60264 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Andy Pont <andy.pont@sdcsystems.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/starlabs/labtop/variants/tgl/devicetree.cb3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mainboard/starlabs/labtop/variants/tgl/devicetree.cb b/src/mainboard/starlabs/labtop/variants/tgl/devicetree.cb
index 35c201080b..2e001c6481 100644
--- a/src/mainboard/starlabs/labtop/variants/tgl/devicetree.cb
+++ b/src/mainboard/starlabs/labtop/variants/tgl/devicetree.cb
@@ -28,6 +28,7 @@ chip soc/intel/tigerlake
# Serial I/O
register "SerialIoI2cMode" = "{
[PchSerialIoIndexI2C0] = PchSerialIoPci,
+ [PchSerialIoIndexI2C4] = PchSerialIoSkipInit,
}"
register "SerialIoUartMode" = "{
@@ -165,7 +166,7 @@ chip soc/intel/tigerlake
register "SataPortsEnable[1]" = "1"
register "SataPortsDevSlp[1]" = "1"
end
- device pci 19.0 off end # I2C4
+ device pci 19.0 on end # I2C4
device pci 19.1 off end # I2C5
device pci 19.2 on end # UART #2
device pci 1c.0 off end # PCI Express Port 1