/*
 * Copyright (C) 2017 BayLibre, SAS
 *
 * ACME cape
 *
 * 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/board/am335x-bbw-bbb-base.h>
#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 {
					ACME-revB = __TIMESTAMP__;
				};
			};
		};
	};

	/*
	 * Free up the pins used by the cape from the pinmux helpers.
	 */
	fragment@1 {
		target = <&ocp>;
		__overlay__ {
			P9_17_pinmux { status = "disabled"; };	/* spi0_cs0.i2c1_scl */
			P9_18_pinmux { status = "disabled"; };	/* spi0_d1.i2c1_sda */
		};
	};

	fragment@2 {
		target = <&am33xx_pinmux>;
		__overlay__ {
			bb_i2c1_pins: pinmux_bb_i2c1_pins {
				pinctrl-single,pins = <
					BONE_P9_18 0x72	// spi0_d1.i2c1_sda, SLEWCTRL_SLOW | INPUT_PULLUP | MODE2
					BONE_P9_17 0x72	// spi0_cs0.i2c1_scl, SLEWCTRL_SLOW | INPUT_PULLUP | MODE2
				>;
			};
		};
	};

	fragment@3 {
		target = <&i2c1>;
		__overlay__ {
			status = "okay";
			pinctrl-names = "default";
			pinctrl-0 = <&bb_i2c1_pins>;

			// configuration start
			clock-frequency = <400000>;

			#address-cells = <1>;
			#size-cells = <0>;

			pca9534: pca9534@21 {
				compatible = "pca9534";
				reg = <0x21>;
				#gpio-cells = <2>;
			};
		};
	};

	fragment@4 {
		target-path="/";
		__overlay__ {
			i2cmux@1 {
				compatible = "i2c-mux-gpio";
				#address-cells = <1>;
				#size-cells = <0>;
				mux-gpios = <&pca9534 0 GPIO_ACTIVE_LOW>;
				i2c-parent = <&i2c1>;
				idle-state = <1>;

				i2c@1 {
					reg = <1>;
					#address-cells = <1>;
					#size-cells = <0>;

					acme_eeprom0: acme_eeprom0@54 {
						compatible = "at,24c32";
						reg = <0x54>;
						#address-cells = <1>;
						#size-cells = <1>;
					};

					acme_eeprom1: acme_eeprom1@55 {
						compatible = "at,24c32";
						reg = <0x55>;
						#address-cells = <1>;
						#size-cells = <1>;
					};

					acme_eeprom2: acme_eeprom2@56 {
						compatible = "at,24c32";
						reg = <0x56>;
						#address-cells = <1>;
						#size-cells = <1>;
					};

					acme_eeprom3: acme_eeprom3@57 {
						compatible = "at,24c32";
						reg = <0x57>;
						#address-cells = <1>;
						#size-cells = <1>;
					};

					acme_serial0: acme_serial0@5c {
						compatible = "at,24cs32";
						reg = <0x5c>;
						#address-cells = <1>;
						#size-cells = <1>;
					};

					acme_serial1: acme_serial1@5d {
						compatible = "at,24cs32";
						reg = <0x5d>;
						#address-cells = <1>;
						#size-cells = <1>;
					};

					acme_serial2: acme_serial2@5e {
						compatible = "at,24cs32";
						reg = <0x5e>;
						#address-cells = <1>;
						#size-cells = <1>;
					};

					acme_serial3: acme_serial3@5f {
						compatible = "at,24cs32";
						reg = <0x5f>;
						#address-cells = <1>;
						#size-cells = <1>;
					};
				};

				i2c@2 {
					reg = <2>;
					#address-cells = <1>;
					#size-cells = <0>;

					pca9535: pca9535@20 {
						compatible = "pca9535";
						reg = <0x20>;
						#gpio-cells = <2>;
					};

					acme_probe0: acme_probe0@40 {
						compatible = "ti,ina226";
						reg = <0x40>;
						gpio = <&pca9535 1 0>;
					};

					acme_probe_eeprom0: acme_probe_eeprom0@50 {
						compatible = "at,24c02";
						reg = <0x50>;
					};

					acme_probe_serial0: acme_probe_serial0@58 {
						compatible = "at,24cs02";
						reg = <0x58>;
					};

					acme_probe1: acme_probe1@41 {
						compatible = "ti,ina226";
						reg = <0x41>;
						gpio = <&pca9535 3 0>;
					};

					acme_probe_eeprom1: acme_probe_eeprom1@51 {
						compatible = "at,24c02";
						reg = <0x51>;
					};

					acme_probe_serial1: acme_probe_serial1@59 {
						compatible = "at,24cs02";
						reg = <0x59>;
					};

					acme_probe2: acme_probe2@42 {
						compatible = "ti,ina226";
						reg = <0x42>;
						gpio = <&pca9535 5 0>;
					};

					acme_probe_eeprom2: acme_probe_eeprom2@52 {
						compatible = "at,24c02";
						reg = <0x52>;
					};

					acme_probe_serial2: acme_probe_serial2@5a {
						compatible = "at,24cs02";
						reg = <0x5a>;
					};

					acme_probe3: acme_probe3@43 {
						compatible = "ti,ina226";
						reg = <0x43>;
						gpio = <&pca9535 7 0>;
					};

					acme_probe_eeprom3: acme_probe_eeprom3@53 {
						compatible = "at,24c02";
						reg = <0x53>;
					};

					acme_probe_serial3: acme_probe_serial3@5b {
						compatible = "at,24cs02";
						reg = <0x5b>;
					};

					acme_probe4: acme_probe4@44 {
						compatible = "ti,ina226";
						reg = <0x44>;
						gpio = <&pca9535 9 0>;
					};

					acme_probe_eeprom4: acme_probe_eeprom4@54 {
						compatible = "at,24c02";
						reg = <0x54>;
					};

					acme_probe_serial4: acme_probe_serial4@5c {
						compatible = "at,24cs02";
						reg = <0x5c>;
					};

					acme_probe5: acme_probe5@45 {
						compatible = "ti,ina226";
						reg = <0x45>;
						gpio = <&pca9535 11 0>;
					};

					acme_probe_eeprom5: acme_probe_eeprom5@55 {
						compatible = "at,24c02";
						reg = <0x55>;
					};

					acme_probe_serial5: acme_probe_serial5@5d {
						compatible = "at,24cs02";
						reg = <0x5d>;
					};

					acme_probe6: acme_probe6@46 {
						compatible = "ti,ina226";
						reg = <0x46>;
						gpio = <&pca9535 13 0>;
					};

					acme_probe_eeprom6: acme_probe_eeprom6@56 {
						compatible = "at,24c02";
						reg = <0x56>;
					};

					acme_probe_serial6: acme_probe_serial6@5e {
						compatible = "at,24cs02";
						reg = <0x5e>;
					};

					acme_probe7: acme_probe7@47 {
						compatible = "ti,ina226";
						reg = <0x47>;
						gpio = <&pca9535 15 0>;
					};

					acme_probe_eeprom7: acme_probe_eeprom7@57 {
						compatible = "at,24c02";
						reg = <0x57>;
					};

					acme_probe_serial7: acme_probe_serial7@5f {
						compatible = "at,24cs02";
						reg = <0x5f>;
					};
				};
			};
		};
	};
};