forked from Qortal/Brooklyn
118 lines
2.4 KiB
Plaintext
118 lines
2.4 KiB
Plaintext
// redo: ovmerge -c mcp251xfd-overlay.dts,spi0-0,interrupt=25 mcp251xfd-overlay.dts,spi0-1,interrupt=24 i2c-rtc-overlay.dts,pcf85063
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// Device tree overlay for https://www.seeedstudio.com/CAN-BUS-FD-HAT-for-Raspberry-Pi-p-4742.html
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/dts-v1/;
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/plugin/;
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/pinctrl/bcm2835.h>
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/ {
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compatible = "brcm,bcm2835";
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fragment@0 {
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target = <&spidev0>;
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__overlay__ {
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status = "disabled";
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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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mcp251xfd_pins: mcp251xfd_spi0_0_pins {
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brcm,pins = <25>;
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brcm,function = <BCM2835_FSEL_GPIO_IN>;
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};
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};
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};
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fragment@2 {
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target-path = "/clocks";
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__overlay__ {
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clk_mcp251xfd_osc: mcp251xfd-spi0-0-osc {
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#clock-cells = <0>;
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compatible = "fixed-clock";
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clock-frequency = <40000000>;
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};
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};
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};
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fragment@3 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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mcp251xfd@0 {
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compatible = "microchip,mcp251xfd";
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reg = <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&mcp251xfd_pins>;
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spi-max-frequency = <20000000>;
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interrupt-parent = <&gpio>;
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interrupts = <25 IRQ_TYPE_LEVEL_LOW>;
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clocks = <&clk_mcp251xfd_osc>;
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};
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};
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};
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fragment@4 {
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target = <&spidev1>;
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__overlay__ {
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status = "disabled";
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};
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};
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fragment@5 {
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target = <&gpio>;
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__overlay__ {
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mcp251xfd_pins_1: mcp251xfd_spi0_1_pins {
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brcm,pins = <24>;
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brcm,function = <BCM2835_FSEL_GPIO_IN>;
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};
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};
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};
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fragment@6 {
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target-path = "/clocks";
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__overlay__ {
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clk_mcp251xfd_osc_1: mcp251xfd-spi0-1-osc {
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#clock-cells = <0>;
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compatible = "fixed-clock";
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clock-frequency = <40000000>;
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};
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};
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};
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fragment@7 {
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target = <&spi0>;
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__overlay__ {
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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mcp251xfd@1 {
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compatible = "microchip,mcp251xfd";
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reg = <1>;
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pinctrl-names = "default";
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pinctrl-0 = <&mcp251xfd_pins_1>;
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spi-max-frequency = <20000000>;
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interrupt-parent = <&gpio>;
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interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
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clocks = <&clk_mcp251xfd_osc_1>;
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};
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};
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};
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fragment@8 {
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target = <&i2cbus>;
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__overlay__ {
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#address-cells = <1>;
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#size-cells = <0>;
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pcf85063@51 {
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compatible = "nxp,pcf85063";
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reg = <0x51>;
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};
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};
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};
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fragment@9 {
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target = <&i2c_arm>;
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i2cbus: __overlay__ {
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status = "okay";
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};
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};
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};
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