diff options
Diffstat (limited to 'arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts')
-rw-r--r-- | arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts b/arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts new file mode 100644 index 000000000000..335af8637051 --- /dev/null +++ b/arch/arm/boot/dts/overlays/spi3-1cs-overlay.dts @@ -0,0 +1,44 @@ +/dts-v1/; +/plugin/; + + +/ { + compatible = "brcm,bcm2711"; + + fragment@0 { + target = <&spi3_cs_pins>; + frag0: __overlay__ { + brcm,pins = <0>; + brcm,function = <1>; /* output */ + }; + }; + + fragment@1 { + target = <&spi3>; + frag1: __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + + pinctrl-names = "default"; + pinctrl-0 = <&spi3_pins &spi3_cs_pins>; + cs-gpios = <&gpio 0 1>; + status = "okay"; + + spidev3_0: spidev@0 { + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <125000000>; + status = "okay"; + }; + }; + }; + + __overrides__ { + cs0_pin = <&frag0>,"brcm,pins:0", + <&frag1>,"cs-gpios:4"; + cs0_spidev = <&spidev3_0>,"status"; + }; +}; |