/dts-v1/;
/plugin/;

#include <dt-bindings/pinctrl/am33xx.h>
#include <dt-bindings/board/am335x-bbw-bbb-base.h>
#include <dt-bindings/interrupt-controller/irq.h>

&{/chosen} {
	overlays {
		// use name of this file (without .dts) as property name
		encx24j600 = __TIMESTAMP__;
	};
};

// disable cape-universal for pins used
&ocp {
	P9_12_pinmux { status = "disabled"; };	// encx24j600 irq
	P9_17_pinmux { status = "disabled"; };	// spi0 cs0
	P9_18_pinmux { status = "disabled"; };	// spi0 d1
	P9_21_pinmux { status = "disabled"; };	// spi0 d0
	P9_22_pinmux { status = "disabled"; };	// spi0 sclk
};

&spi0 {
	status = "okay";
	pinctrl-names = "default";
	pinctrl-0 = <&spi0_pins>;

	// use same node name as cape-universal does
	channel@0 {
		reg = <0>;
		compatible = "microchip,encx24j600";
		pinctrl-names = "default";
		pinctrl-0 = <&encx24j600_pins>;
		spi-max-frequency = <20000000>;
		interrupts-extended = <&gpio1 28 IRQ_TYPE_EDGE_FALLING>;
	};
};

&am33xx_pinmux {
	spi0_pins: spi0 {
		pinctrl-single,pins = <
			BONE_P9_17 ( PIN_OUTPUT_PULLUP | MUX_MODE0 ) // cs0
			BONE_P9_18 ( PIN_OUTPUT_PULLUP | MUX_MODE0 ) // d1 / mosi
			BONE_P9_21 ( PIN_INPUT_PULLUP  | MUX_MODE0 ) // d0 / miso
			BONE_P9_22 ( PIN_INPUT_PULLUP  | MUX_MODE0 ) // sclk
		>;
	};

	encx24j600_pins: encx24j600 {
		pinctrl-single,pins = <
			BONE_P9_12 ( PIN_INPUT_PULLUP  | MUX_MODE7 ) // gpio 1.28 / irq
		>;
	};
};