zBusNet/boards/esp32s3_devkitc_esp32s3_procpu.overlay

/*
 * Wire spi2 from to the Wio-S3 Sx1262 pins:
 *   SPI  CLK=4  MOSI=6  MISO=5
 *   CS=21  RST=7  BUSY=8  DIO1=9
 */

#include <zephyr/dt-bindings/lora/sx126x.h>

&pinctrl {
	relay_spim2_default: relay_spim2_default {
		group1 {
			pinmux = <SPIM2_MISO_GPIO5>,
				 <SPIM2_SCLK_GPIO4>;
		};

		group2 {
			pinmux = <SPIM2_MOSI_GPIO6>;
			output-low;
		};
	};
};

&spi2 {
	status = "okay";
	pinctrl-0 = <&relay_spim2_default>;
	pinctrl-names = "default";

	cs-gpios = <&gpio0 21 GPIO_ACTIVE_LOW>;

	lora0: modem@0 {
		compatible = "semtech,sx1262";
		reg = <0>;
		reset-gpios = <&gpio0 7 (GPIO_OPEN_DRAIN | GPIO_ACTIVE_LOW)>;
		busy-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
		dio1-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
		/* DIO2 drives the board's RF switch, same as the ESPHome rf_switch:true. */
		dio2-tx-enable;
		dio3-tcxo-voltage = <SX126X_DIO3_TCXO_1V8>;
		tcxo-power-startup-delay-ms = <5>;
		spi-max-frequency = <4000000>;
	};
};

/ {
	aliases {
		lora0 = &lora0;
	};
};

&flash0 {
	reg = <0x0 DT_SIZE_M(16)>;
	ranges = <0x0 0x0 DT_SIZE_M(16)>;
};

&psram0 {
	size = <DT_SIZE_M(8)>;
};

&flash0 {
	partitions {
		littlefs_partition: partition@400000 {
			compatible = "zephyr,mapped-partition";
			label = "littlefs";
			reg = <0x400000 DT_SIZE_K(1024)>;
		};
	};
};

/*
 * Mounts littlefs_partition at /lfs
 */
/ {
	lfs: lfs {
		compatible = "zephyr,fstab,littlefs";
		mount-point = "/lfs";
		partition = <&littlefs_partition>;
		automount;
		read-size = <16>;
		prog-size = <16>;
		cache-size = <64>;
		lookahead-size = <32>;
		block-cycles = <512>;
	};
};