forked from Qortal/Brooklyn
54 lines
1.4 KiB
Plaintext
54 lines
1.4 KiB
Plaintext
// Overlay for the SiLabs Si446X Controller - SPI0
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// Default Interrupt Pin: 17
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// Default SDN Pin: 27
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&spi0>;
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__overlay__ {
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// needed to avoid dtc warning
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#address-cells = <1>;
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#size-cells = <0>;
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status = "okay";
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uhf0: si446x@0{
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compatible = "silabs,si446x";
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reg = <0>; // CE0
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pinctrl-names = "default";
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pinctrl-0 = <&uhf0_pins>;
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interrupt-parent = <&gpio>;
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interrupts = <17 0x2>; // falling edge
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spi-max-frequency = <4000000>;
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sdn_pin = <27>;
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irq_pin = <17>;
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status = "okay";
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};
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};
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};
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fragment@1 {
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target = <&gpio>;
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__overlay__ {
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uhf0_pins: uhf0_pins {
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brcm,pins = <17 27>;
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brcm,function = <0 1>; // in, out
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brcm,pull = <2 0>; // high, none
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};
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};
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};
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__overrides__ {
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int_pin = <&uhf0>, "interrupts:0",
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<&uhf0>, "irq_pin:0",
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<&uhf0_pins>, "brcm,pins:0";
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reset_pin = <&uhf0>, "sdn_pin:0",
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<&uhf0_pins>, "brcm,pins:4";
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speed = <&uhf0>, "spi-max-frequency:0";
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};
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};
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