bpi-m2-zero-v4.dts

/*
 * Copyright (C) 2015 Chen-Yu Tsai <wens@csie.org>
 * Copyright (C) 2017 @lex <alex.mobigo@gmail.comr>
 *
 * This file is dual-licensed: you can use it either under the terms
 * of the GPL or the X11 license, at your option. Note that this dual
 * licensing only applies to this file, and not this project as a
 * whole.
 *
 *  a) This file is free software; you can redistribute it and/or
 *     modify it under the terms of the GNU General Public License as
 *     published by the Free Software Foundation; either version 2 of the
 *     License, or (at your option) any later version.
 *
 *     This file is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 *
 * Or, alternatively,
 *
 *  b) Permission is hereby granted, free of charge, to any person
 *     obtaining a copy of this software and associated documentation
 *     files (the "Software"), to deal in the Software without
 *     restriction, including without limitation the rights to use,
 *     copy, modify, merge, publish, distribute, sublicense, and/or
 *     sell copies of the Software, and to permit persons to whom the
 *     Software is furnished to do so, subject to the following
 *     conditions:
 *
 *     The above copyright notice and this permission notice shall be
 *     included in all copies or substantial portions of the Software.
 *
 *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *     OTHER DEALINGS IN THE SOFTWARE.
 */

/dts-v1/;
#include "sun8i-h3-x.dtsi"
#include "sunxi-common-regulators.dtsi"

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/thermal/thermal.h>
#include <dt-bindings/pinctrl/sun4i-a10.h>

/ {
	model = "Banana Pi M2 Zero";
	compatible = "sinovoip,bananapi zero", "allwinner,sun8i-h3";

	aliases {
		ethernet0 = &emac;
        	ethernet1 = &brcmf;
		serial0 = &uart0;
		serial1 = &uart1;
		serial2 = &uart2;
		serial3 = &uart3;
		i2c0 = &i2c0;
		i2c1 = &i2c1;
        	i2c2 = &i2c2;
   		spi0 = &spi0;
		/* spi1 = &spi1; */
		spidev0 = &spidev0;
		spiflash = &spiflash;
		pitft = &pitft;
		pitft_ts = &pitft_ts;
		mmc0 = &mmc0;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};
    
#ifdef _CAMERA_OV5640_    
	i2c-csi {
		compatible = "i2c-gpio";
		sda-gpios = <&pio 4 13 GPIO_ACTIVE_HIGH>; /* CSI0-SDA: PE13 */
		scl-gpios = <&pio 4 12 GPIO_ACTIVE_HIGH>; /* CSI0-SCK: PE12 */
		i2c-gpio,delay-us = <5>;
		#address-cells = <1>;
		#size-cells = <0>;

		ov5640: camera@3c {
			compatible = "ovti,ov5640";
			reg = <0x3c>;
			pinctrl-names = "default";
			pinctrl-0 = <&csi_mclk_pin>;
			clocks = <&ccu CLK_CSI_MCLK>;
			clock-names = "xclk";

	    AVDD-supply = <&reg_cam_avdd>;
	    DOVDD-supply = <&reg_cam_dovdd>;
	    DVDD-supply = <&reg_cam_dvdd>;
			reset-gpios = <&pio 4 14 GPIO_ACTIVE_LOW>; /* CSI0-RST: PE14 */
			powerdown-gpios = <&pio 4 15 GPIO_ACTIVE_HIGH>; /* CSI0-PWDN: PE15 */

			port {
				ov5640_ep: endpoint {
					remote-endpoint = <&csi_ep>;
					bus-width = <8>;
					hsync-active = <1>; /* Active high */
					vsync-active = <0>; /* Active low */
					data-active = <1>;  /* Active high */
					pclk-sample = <1>;  /* Rising */
				};
			};
		};
	};
#endif    

	connector {
		compatible = "hdmi-connector";
		type = "a";

		port {
			hdmi_con_in: endpoint {
				remote-endpoint = <&hdmi_out_con>;
			};
		};
	};

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

		pwr_led {
			label = "bpi:red:pwr";
			gpios = <&r_pio 0 10 GPIO_ACTIVE_LOW>; /* PL10 */
			/* default-state = "on"; */
            linux,default-trigger = "heartbeat";
		};

	};

    
    wifi_pwrseq: wifi_pwrseq {
        compatible = "mmc-pwrseq-simple";
        pinctrl-names = "default";
        reset-gpios = <&r_pio 0 7 GPIO_ACTIVE_LOW>; /* PL7 */
        clocks = <&rtc 1>;
        clock-names = "ext_clock";        
    };
    

#ifdef _OLD_
	rfkill_bt {
		compatible = "rfkill-gpio";
		pinctrl-names = "default";
		pinctrl-0 = <&bt_pwr_pin>;
        reset-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; // PG12 
		clocks = <&osc32k>;
		/* clock-frequency = <32768>; */
		rfkill-name = "sunxi-bt";
		rfkill-type = "bluetooth";
	};
#endif 

#ifdef _CAMERA_OV5640_    
    cam_xclk: cam-xclk {
		#clock-cells = <0>;
		compatible = "fixed-clock";
		clock-frequency = <24000000>;
		clock-output-names = "cam-xclk";
	};

	reg_cam_avdd: cam-avdd {
		compatible = "regulator-fixed";
		regulator-name = "cam-avdd";
		regulator-min-microvolt = <2800000>;
		regulator-max-microvolt = <2800000>;
		vin-supply = <&reg_vcc3v3>;
	};

	reg_cam_dovdd: cam-dovdd {
		compatible = "regulator-fixed";
		regulator-name = "cam-dovdd";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		vin-supply = <&reg_vcc3v3>;
	};

	reg_cam_dvdd: cam-dvdd {
		compatible = "regulator-fixed";
		regulator-name = "cam-dvdd";
		regulator-min-microvolt = <1500000>;
		regulator-max-microvolt = <1500000>;
		vin-supply = <&reg_vcc3v3>;
	};
#endif    
    
    reg_sy8113b: gpio-regulator {
        pinctrl-names = "default";
        pinctrl-0 = <&vdd_cpux_r_bpi>;

		compatible = "regulator-gpio";
		regulator-name = "vdd-cpux";
		regulator-type = "voltage";
		regulator-boot-on;
		regulator-always-on;
		regulator-min-microvolt = <1100000>;
		regulator-max-microvolt = <1300000>;
		regulator-ramp-delay = <50>; 		// 50=4ms check

		gpios = <&r_pio 0 1 GPIO_ACTIVE_HIGH>; 	// PL1 check
		enable-active-high;
		gpios-states = <0x1>;
		states = <1100000 0x0 1300000 0x1>;
	};
    
    
	r_gpio_keys {
		compatible = "gpio-keys";
		pinctrl-names = "default";
		pinctrl-0 = <&sw_r_bpi>;

		k1 {
			label = "k1";
			linux,code = <KEY_POWER>;
			gpios = <&r_pio 0 3 GPIO_ACTIVE_LOW>;
		};
	};
};

/*
&cpu0 {
	operating-points = <
		1008000	1300000
		816000	1100000
		624000	1100000
		480000	1100000
		312000	1100000
		240000	1100000
		120000	1100000
		>;
	#cooling-cells = <2>;
	cooling-min-level = <0>;
	cooling-max-level = <6>;
};
*/

&cpu_thermal {
	trips {
		cpu_warm: cpu_warm {
			temperature = <70000>;
			hysteresis = <2000>;
			type = "passive";
		};
		cpu_hot: cpu_hot {
			temperature = <85000>;
			hysteresis = <2000>;
			type = "passive";
		};
		cpu_very_hot: cpu_very_hot {
			temperature = <95000>;
			hysteresis = <2000>;
			type = "passive";
		};
		cpu_crit: cpu_crit {
			temperature = <105000>;
			hysteresis = <2000>;
			type = "critical";
		};
	};

	cooling-maps {
		cpu_warm_limit_cpu {
			trip = <&cpu_warm>;
			cooling-device = <&cpu0 THERMAL_NO_LIMIT 1>;
		};
		cpu_hot_limit_cpu {
			trip = <&cpu_hot>;
			cooling-device = <&cpu0 2 3>;
		};
		cpu_very_hot_limit_cpu {
			trip = <&cpu_very_hot>;
			cooling-device = <&cpu0 5 THERMAL_NO_LIMIT>;
		};
	};
};

&de {
	status = "okay";
};

&ehci0 {
	status = "okay";
};

&ehci1 {
 	status = "okay";
};

&ehci2 {
	status = "okay";
};

&ehci3 {
	status = "okay";
};

&emac {
	phy-handle = <&int_mii_phy>;
	phy-mode = "mii";
	allwinner,leds-active-low;
	status = "okay";
    local-mac-address = [ 00 00 00 00 00 00 ];	
};


&cpu0 {
	cpu-supply = <&reg_sy8113b>;
};


&hdmi {
	status = "okay";
};

&hdmi_out {
	hdmi_out_con: endpoint {
		remote-endpoint = <&hdmi_con_in>;
	};
};

&sound_hdmi {
	status = "okay";
};


&i2s2 {
	status = "okay";
};

&ir {
	pinctrl-names = "default";
	pinctrl-0 = <&r_ir_rx_pin>;
	status = "okay";
};

&codec {
	allwinner,audio-routing =
		"Line Out", "LINEOUT",
		"MIC1", "Mic",
		"Mic",  "MBIAS";
	status = "okay";
};

&codec_analog {
	status = "okay";
};


&mixer0 {
	status = "okay";
};

&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins>;
	vmmc-supply = <&reg_vcc3v3>;
	bus-width = <4>;
	/*
	 * In different revisions the board have different card detect
	 * configuration.
	 */
	broken-cd;
	status = "okay";
    boot_device = <0>;
};

&mmc1 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc1_pins>;
	vmmc-supply = <&reg_vcc3v3>;
	vqmmc-supply = <&reg_vcc3v3>;
	mmc-pwrseq = <&wifi_pwrseq>;
	bus-width = <4>;
	non-removable;
	status = "okay";

	brcmf: wifi@1 {
		reg = <1>;
		compatible = "brcm,bcm4329-fmac";
		interrupt-parent = <&pio>;
		interrupts = <6 10 IRQ_TYPE_LEVEL_LOW>; // PG10 / EINT10
		interrupt-names = "host-wake";
	};
};

&mmc1_pins {
	bias-pull-up;
};

&mmc2 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc2_8bit_pins>;
	vmmc-supply = <&reg_vcc3v3>;
	bus-width = <8>;
	non-removable;
	cap-mmc-hw-reset;
	/* status = "okay"; */
};

&mmc2_8bit_pins {
	/* Increase drive strength for DDR modes */
	drive-strength = <40>;
	/* eMMC is missing pull-ups */
	bias-pull-up;
};


&spi1 {
	status = "disabled";
	spidev1: spi@0 {
		compatible = "nanopi,spidev";
		reg = <0>;
		spi-max-frequency = <10000000>;
	};
};

&ohci0 {
	status = "okay";
};

&ohci1 {
	status = "okay";
};

&ohci2 {
	status = "okay";
};

&ohci3 {
	status = "okay";
};


&pio {
    spi0_cs_pins: spi0_cs_pins {
        pins = "PC3", "PA6";
        function = "gpio_out";
    };
    bt_pwr_pin: bt_pwr_pin@0 {
        pins = "PG12";
        function = "gpio_out";
    };
};

&r_pio {
	leds_r_bpi: led_pins@0 {
		pins = "PL10";
		function = "gpio_out";
	};

	sw_r_bpi: key_pins@0 {
		pins = "PL3";
		function = "gpio_in";
	};
    
    vdd_cpux_r_bpi: regulator_pins@0 {
		allwinner,pins = "PL1";
		allwinner,function = "gpio_out";
		allwinner,drive = <SUN4I_PINCTRL_10_MA>;
		allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
	};
    
    wifi_en_bpi: wifi_en_pin {
        pins = "PL7";
        function = "gpio_out";
    };
};

&i2c0 {
    status = "okay";
    /*
    rtc@68 {
            compatible = "dallas,ds1307";
            reg = <0x68>;
    };
    */
};

&i2c1 {
    /* no I2C1 for I2S0 */
    status = "okay";
};

&i2c2 {
    status = "disabled";
};

&spi0 {
    /* needed to avoid dtc warning */
    #address-cells = <1>;
    #size-cells = <0>;

    /* status = "okay";  */
    status = "disabled";
    pinctrl-names = "default";
    pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
    cs-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>, <&pio 0 6 GPIO_ACTIVE_HIGH>;

    spidev0: spi@0 {
        compatible = "nanopi,spidev";
        reg = <0>;
        /* status = "disabled"; */
        status = "okay"; 

        spi-max-frequency = <10000000>;
    };

    spiflash: spiflash@0 {
        #address-cells = <1>;
        #size-cells = <1>;
        compatible = "mxicy,mx25l1606e";
        reg = <0>;
        status = "disabled";

        spi-max-frequency = <50000000>;
        mode = <0>;

        partition@0 {
            reg = <0x0 0x200000>;
            label = "spi-flash";
        };
    };

    pitft: pitft@0{
        compatible = "sitronix,st7789v";
        reg = <0>;
        /* status = "okay"; */
        status = "disabled";

        spi-max-frequency = <50000000>;
        rotate = <90>;
        fps = <33>;
        buswidth = <8>;
        dc-gpios = <&pio 0 1 GPIO_ACTIVE_HIGH>;     /* PA1 */
        reset-gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
        debug = <0x0>;
    };

    pitft_ts: pitft-ts@1 {
        compatible = "ti,ads7846";
        reg = <1>;
        /* status = "okay"; */
        status = "disabled";

        spi-max-frequency = <2000000>;
        interrupt-parent = <&pio>;
        interrupts = <6 9 IRQ_TYPE_EDGE_FALLING>;   /* PG9 / EINT9 */
        pendown-gpio = <&pio 6 9 GPIO_ACTIVE_LOW>;
        ti,swap-xy;
        ti,vref-delay-usecs = <1000>;
        ti,x-min = /bits/ 16 <100>;
        ti,x-max = /bits/ 16 <0xfff>;
        ti,y-min = /bits/ 16 <100>;
        ti,y-max = /bits/ 16 <0xfff>;
        ti,vref-mv = <3300>;
        ti,x-plate-ohms = /bits/ 16 <256>;
        ti,penirq-recheck-delay-usecs = <10>;
        ti,settle-delay-usec = /bits/ 16 <100>;
        ti,keep-vref-on = <1>;
        ti,pressure-max = /bits/ 16 <0xfff>;
        ti,debounce-max = <10>;
        ti,debounce-tol = <30>;
        ti,debounce-rep = <1>;
    };
};


&reg_usb0_vbus {
	gpio = <&r_pio 0 2 GPIO_ACTIVE_HIGH>; /* PL2 */
	status = "disabled";
};


&uart0 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart0_pa_pins>;
	status = "okay";
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
	uart-has-rtscts;
	status = "okay";

	bluetooth {
		compatible = "brcm,bcm43438-bt";
		max-speed = <1500000>;		
		clocks = <&rtc 1>;
		clock-names = "lpo";
		vbat-supply = <&reg_vcc3v3>;
		vddio-supply = <&reg_vcc3v3>;
		device-wakeup-gpios = <&pio 6 13 GPIO_ACTIVE_HIGH>; /* PG13 */
		host-wakeup-gpios = <&pio 6 11 GPIO_ACTIVE_HIGH>; /* PG11 */
		shutdown-gpios = <&pio 6 12 GPIO_ACTIVE_HIGH>; /* PG12 */
	};
};

&uart2 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart2_pins>;
	status = "disabled"; 
    /* status = "okay"; */
};

&uart3 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart3_pins>;
	/* status = "disabled"; */
    status = "okay";
};

&usb_otg {
	dr_mode = "otg";
	status = "okay";
};

&usbphy {
	usb0_id_det-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
	/* usb0_vbus-supply = <&reg_usb0_vbus>; */
	/* VBUS on USB host ports are always on */
    /* USB OTG VBUS is directly connected to 5V without any regulators */
	status = "okay";
};

#ifdef _CAMERA_OV5640_
&csi {
	status = "okay";

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

		csi_ep: endpoint {
			remote-endpoint = <&ov5640_ep>;
			bus-width = <8>;
			hsync-active = <1>; /* Active high */
			vsync-active = <0>; /* Active low */
			data-active = <1>;  /* Active high */
			pclk-sample = <1>;  /* Rising */
		};
	};
};
#endif