BBORG_MOTOR-00A2.dts

/*
 * Copyright (C) 2018 Robert Nelson <robertcnelson@gmail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

/dts-v1/;
/plugin/;

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/am33xx.h>

/ {
	/*
	 * Helper to show loaded overlays under: /proc/device-tree/chosen/overlays/
	 */
	fragment@0 {
		target-path="/";
		__overlay__ {

			chosen {
				overlays {
					BBORG_MOTOR-00A2 = __TIMESTAMP__;
				};
			};
		};
	};

	/*
	 * Free up the pins used by the cape from the pinmux helpers.
	 */
	fragment@1 {
		target = <&ocp>;
		__overlay__ {
			P8_13_pinmux { status = "disabled"; };	/* m3.pwm2.b */
			P8_14_pinmux { status = "disabled"; };	/* m3.high */
			P8_16_pinmux { status = "disabled"; };  /* m2.high */
			P8_18_pinmux { status = "disabled"; };	/* m1.high */
			P8_19_pinmux { status = "disabled"; };	/* m4.pwm2.a */
			P8_26_pinmux { status = "disabled"; };  /* m4.high */
			P9_14_pinmux { status = "disabled"; };	/* m2.pwm1.a */
			P9_16_pinmux { status = "disabled"; };	/* m1.pwm1.b */
		};
	};

	fragment@2 {
		target = <&am33xx_pinmux>;
		__overlay__ {
			bborg_motor_led_pins: pinmux-bborg-proto-led-pins {
				pinctrl-single,pins = <
					AM33XX_IOPAD(0x0828, PIN_OUTPUT_PULLUP | INPUT_EN | MUX_MODE7)	/* P8_14: gpmc_ad10.gpio0_26 */
					AM33XX_IOPAD(0x0838, PIN_OUTPUT_PULLUP | INPUT_EN | MUX_MODE7)	/* P8_16: gpmc_ad14.gpio1_14 */
					AM33XX_IOPAD(0x088c, PIN_OUTPUT_PULLUP | INPUT_EN | MUX_MODE7)	/* P8_18: gpmc_clk.gpio2_1 */
					AM33XX_IOPAD(0x087c, PIN_OUTPUT_PULLUP | INPUT_EN | MUX_MODE7)	/* P8_26: gpmc_csn0.gpio1_29 */
				>;
			};

			bborg_motor_ehrpwm1_pins: pinmux-bborg-proto-ehrpwm1-pins {
				pinctrl-single,pins = <
					AM33XX_IOPAD(0x0848, PIN_OUTPUT_PULLDOWN | MUX_MODE6)	/* P9_14: gpmc_a2.ehrpwm1a */
					AM33XX_IOPAD(0x084c, PIN_OUTPUT_PULLDOWN | MUX_MODE6)	/* P9_16: gpmc_a3.ehrpwm1b */
				>;
			};

			bborg_motor_ehrpwm2_pins: pinmux-bborg-proto-ehrpwm2-pins {
				pinctrl-single,pins = <
					AM33XX_IOPAD(0x0824, PIN_OUTPUT_PULLDOWN | MUX_MODE4)	/* P8_13: gpmc_ad9.ehrpwm2b */
					AM33XX_IOPAD(0x0820, PIN_OUTPUT_PULLDOWN | MUX_MODE4)	/* P8_19: gpmc_ad8.ehrpwm2a */
				>;
			};
		};
	};

	fragment@3 {
		target = <&epwmss1>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@4 {
		target = <&ehrpwm1>;
		__overlay__ {
			pinctrl-names = "default";
			pinctrl-0 = <&bborg_motor_ehrpwm1_pins>;
			status = "okay";
		};
	};

	fragment@5 {
		target = <&epwmss2>;
		__overlay__ {
			status = "okay";
		};
	};

	fragment@6 {
		target = <&ehrpwm2>;
		__overlay__ {
			pinctrl-names = "default";
			pinctrl-0 = <&bborg_motor_ehrpwm2_pins>;
			status = "okay";
		};
	};

	fragment@7 {
		target-path="/";
		__overlay__ {

			leds {
				pinctrl-names = "default";
				pinctrl-0 = <&bborg_motor_led_pins>;
				compatible = "gpio-leds";

				m1_high {
					label = "m1_high";
					gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
					default-state = "off";
				};

				m2_high {
					label = "m2_high";
					gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
					default-state = "off";
				};

				m3_high {
					label = "m3_high";
					gpios = <&gpio0 26 GPIO_ACTIVE_HIGH>;
					default-state = "off";
				};

				m4_high {
					label = "m4_high";
					gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
					default-state = "off";
				};
			};
		};
	};
};