[PATCH 12/18] arm64: dts: qcom: msm8994-octagon: Configure Lattice iCE40 FPGA
From: Konrad Dybcio <hidden>
Date: 2021-01-31 01:43:43
Also in:
linux-devicetree, lkml, phone-devel
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Linus Torvalds
From: Gustave Monce <redacted> Octagon devices have a Lattice iCE40 FPGA connected over SPI. Configure it. Signed-off-by: Gustave Monce <redacted> Signed-off-by: Konrad Dybcio <redacted> --- .../dts/qcom/msm8994-msft-lumia-octagon.dtsi | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+)
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 004a42261cef..73af5265df9b 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 @@ &blsp1_uart2 { 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";
--
2.30.0