From 8b65237e4e1b1c44f7be30bfcc4b61a6ee7f3198 Mon Sep 17 00:00:00 2001 From: Gustave Monce Date: Sun, 31 Jan 2021 02:38:43 +0100 Subject: arm64: dts: qcom: msm8994-octagon: Configure Lattice iCE40 FPGA Octagon devices have a Lattice iCE40 FPGA connected over SPI. Configure it. Signed-off-by: Gustave Monce Signed-off-by: Konrad Dybcio Link: https://lore.kernel.org/r/20210131013853.55810-13-konrad.dybcio@somainline.org Signed-off-by: Bjorn Andersson --- .../boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'arch/arm64/boot') diff --git a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi index 730bd473be6b..0417c31316d3 100644 --- a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi @@ -304,6 +304,27 @@ status = "okay"; }; +&blsp2_spi4 { + status = "okay"; + + /* + * This device is a Lattice UC120 USB-C PD PHY. + * It is actually a Lattice iCE40 FPGA pre-programmed by + * the device firmware with a specific bitstream + * enabling USB Type C PHY functionality. + * Communication is done via a proprietary protocol over SPI. + * + * TODO: Once a proper driver is available, replace this. + */ + uc120: ice5lp2k@0 { + compatible = "lattice,ice40-fpga-mgr"; + reg = <0>; + spi-max-frequency = <5000000>; + cdone-gpios = <&tlmm 95 GPIO_ACTIVE_HIGH>; + reset-gpios = <&pmi8994_gpios 4 GPIO_ACTIVE_LOW>; + }; +}; + &blsp2_uart2 { status = "okay"; -- cgit v1.2.3