OpenRTX/platform/targets/ttwrplus/ttwrplus.dts

/*
 * SPDX-License-Identifier: Apache-2.0
 */
/dts-v1/;

#include <espressif/esp32s3/esp32s3_wroom_n16r8.dtsi>
#include <zephyr/dt-bindings/pinctrl/esp-pinctrl-common.h>
#include <dt-bindings/pinctrl/esp32s3-pinctrl.h>
#include <dt-bindings/input/input-event-codes.h>
#include <zephyr/dt-bindings/pinctrl/esp32s3-gpio-sigmap.h>
#include <zephyr/dt-bindings/led/led.h>

/ {
    model = "ttwrplus";
    compatible = "espressif,esp32s3";

    aliases {
        i2c-0 = &i2c0;
        watchdog0 = &wdt0;
        radio = &uart0;
        gps = &uart1;
        radio-pwr = &radio_pwr;
        radio-pdn = &radio_pdn;
        radio-ptt = &radio_ptt;
        pmu-irq   = &pmu_irq;
        qdec0 = &pcnt;
        led0 = &ws2812c;
        flash = &flash0;
    };

    chosen {
        zephyr,sram = &sram0;
        zephyr,console = &usb_serial;
        zephyr,shell-uart = &usb_serial;
        zephyr,flash = &flash0;
        zephyr,display = &sh1106;
    };

    leds: leds {
            compatible = "gpio-leds";

            radio_pwr: radio_pwr {
                    gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
                    label = "SA868S H/L on IO38";
            };

            radio_pdn: radio_pdn {
                    gpios = <&gpio1 8 GPIO_ACTIVE_LOW>;
                    label = "SA868S PDN on IO40";
            };

            radio_ptt: radio_ptt {
                    gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
                    label = "SA868S PTT on IO41";
            };

            pmu_irq: pmu_irq {
                gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
                label = "PMU IRQ Pin";
            };
    };

    buttons: buttons {
        compatible = "gpio-keys";

        button_boot: button_0 {
            gpios = <&gpio0 0 GPIO_ACTIVE_LOW>;
            zephyr,code = <INPUT_KEY_VOLUMEDOWN>;
            label = "BOOT Button";
        };

        button_user: button_1 {
            gpios = <&gpio0 21 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
            zephyr,code = <INPUT_BTN_START>;
            label = "Encoder Button";
        };

        button_ptt: button_2 {
            gpios = <&gpio0 3 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
            zephyr,code = <INPUT_BTN_SELECT>;
            label = "PTT Button";
        };
  };
};

&cpu0 {
    clock-frequency = <ESP32_CLK_CPU_240M>;
};

&cpu1 {
    clock-frequency = <ESP32_CLK_CPU_240M>;
};

&usb_serial {
    status = "okay";
};

&uart0 {
    status = "okay";
    current-speed = <9600>;
    pinctrl-0 = <&uart0_default>;
    pinctrl-names = "default";
};

&uart1 {
    status = "okay";
    current-speed = <9600>;
    pinctrl-0 = <&uart1_default>;
    pinctrl-names = "default";
};

&i2c0 {
    status = "okay";
    clock-frequency = <I2C_BITRATE_FAST>;
    pinctrl-0 = <&i2c0_default>;
    pinctrl-names = "default";

    sh1106: sh1106@3c {
                compatible = "sinowealth,sh1106";
                reg = <0x3c>;

                width  = <128>;
                height = <64>;

                segment-offset  = <2>;
                page-offset     = <0>;
                display-offset  = <0>;
                multiplex-ratio = <63>;
                prechargep      = <0x22>;

                segment-remap;
                com-invdir;
        };
};

&spi3 {
    #address-cells = <1>;
    #size-cells = <0>;
    line-idle-low; /* Workaround to have low signal for latching */
    status = "okay";
    pinctrl-0 = <&spim3_default>;
    pinctrl-names = "default";
    ws2812c: ws2812@0 {
            compatible = "worldsemi,ws2812-spi";

            /* SPI */
            reg = <0x0>; /* ignored, but necessary for SPI bindings */
            spi-max-frequency = <6400000>;

            /* WS2812C */
            chain-length = <1>; /* arbitrary; change at will */
            spi-cpha;
            spi-one-frame = <0xf0>; /* 11110000: 625 ns high and 625 ns low */
            spi-zero-frame = <0xc0>; /* 11000000: 312.5 ns high and 937.5 ns low */
            color-mapping = <LED_COLOR_ID_GREEN
                             LED_COLOR_ID_RED
                             LED_COLOR_ID_BLUE>;
            reset-delay = <280>; /* > 280us by WS2812C datasheet */
    };
};

&pcnt {
  pinctrl-0 = <&pcnt_default>;
  pinctrl-names = "default";
  status = "okay";
  #address-cells = <1>;
  #size-cells = <0>;
  unit0@0 {
    reg = <0>;
    #address-cells = <1>;
    #size-cells = <0>;
    filter = <100>;
    channelA@0 {
        reg = <0>;
        sig-pos-mode = <2>;
        sig-neg-mode = <1>;
        ctrl-h-mode = <0>;
        ctrl-l-mode = <1>;
    };
  };
};

&timer0 {
    status = "disabled";
};

&timer1 {
    status = "disabled";
};

&timer2 {
    status = "disabled";
};

&timer3 {
    status = "disabled";
};

&wdt0 {
    status = "okay";
};

&trng0 {
    status = "okay";
};

&pinctrl {
    uart0_default: uart0_default {
        group1 {
            pinmux = <UART0_TX_GPIO39>;
            output-high;
        };
        group2 {
            pinmux = <UART0_RX_GPIO48>;
            bias-pull-up;
        };
    };

    uart1_default: uart1_default {
        group1 {
            pinmux = <UART1_TX_GPIO6>;
            output-high;
        };
        group2 {
            pinmux = <UART1_RX_GPIO5>;
            bias-pull-up;
        };
    };

    i2c0_default: i2c0_default {
        group1 {
            pinmux = <I2C0_SDA_GPIO8>,
                 <I2C0_SCL_GPIO9>;
            bias-pull-up;
            drive-open-drain;
            output-high;
        };
    };

    spim3_default: spim3_default {
        group2 {
            pinmux = <SPIM3_MOSI_GPIO42>;
        };
    };

    pcnt_default: pcnt_default {
        group1 {
            pinmux = <PCNT0_CH0SIG_GPIO46>,
                     <PCNT0_CH0CTRL_GPIO47>;
            bias-pull-up;
        };
    };
};

&flash0 {
    status = "okay";
    partitions {
        compatible = "fixed-partitions";
        #address-cells = <1>;
        #size-cells = <1>;

        /* Reserve 32kB for the bootloader */
        boot_partition: partition@0 {
            label = "tinyuf2";
            reg = <0x00000000 0x00008000>;
            read-only;
        };

        /* Reserve 4kB for the partition table */
        table_partition: partition@8000 {
            label = "partition-table";
            reg = <0x00008000 0x00009000>;
        };

        /* Reserve 20kB for non-volatile storage */
        nvs_partition: partition@9000 {
            label = "nvs";
            reg = <0x00009000 0x0000e000>;
        };

        /* Reserve 8kB for otadata partition */
        otadata_partition: partition@e000 {
            label = "otadata";
            reg = <0x0000e000 0x00010000>;
        };

        /* Reserve 2048kB for ota_0 partition */
        slot0_partition: partition@10000 {
            label = "ota_0";
            reg = <0x00010000 0x00210000>;
        };

        /* Reserve 2048kB for ota_1 partition */
        slot1_partition: partition@210000 {
            label = "ota_1";
            reg = <0x00210000 0x00410000>;
        };

        /* Reserve 256kB for uf2 partition */
        uf2_partition: partition@410000 {
            label = "uf2";
            reg = <0x00410000 0x00450000>;
        };

        /* Reserve 11968kB for storage partition (ffat) */
        storage_partition: partition@450000 {
            label = "ffat";
            reg = <0x00450000 0x00bb0000>;
        };
    };
};