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| author | Gustave Monce <gustave.monce@outlook.com> | 2021-01-31 02:38:43 +0100 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2021-02-02 16:37:38 -0600 |
| commit | 8b65237e4e1b1c44f7be30bfcc4b61a6ee7f3198 (patch) | |
| tree | 3f6e93a6d41e2bccc9a5ee2ca1bc11833633ddf6 /arch/arm64/boot | |
| parent | 09179fb6aff47bf61db621dde06b51361a8a8f6b (diff) | |
| download | lwn-8b65237e4e1b1c44f7be30bfcc4b61a6ee7f3198.tar.gz lwn-8b65237e4e1b1c44f7be30bfcc4b61a6ee7f3198.zip | |
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 <gustave.monce@outlook.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210131013853.55810-13-konrad.dybcio@somainline.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'arch/arm64/boot')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi | 21 |
1 files changed, 21 insertions, 0 deletions
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"; |