Commit ad9d1530 authored by Jonas Berg's avatar Jonas Berg Committed by Henrik Brix Andersen
Browse files

Boards: Add Adafruit Feather RP2040 LoRa board 

Add support for the Adafruit Feather RP2040 LoRa board.
The image is from https://learn.adafruit.com/assets/120298

, with
the license CC BY-SA 3.0.

Signed-off-by: default avatarJonas Berg <jonas.s.t.berg@gmail.com>
parent db410b75

boards/adafruit/feather_rfm95_rp2040/Kconfig

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# Copyright (c) 2025 Jonas Berg

# SPDX-License-Identifier: Apache-2.0



config BOARD_ADAFRUIT_FEATHER_RFM95_RP2040

	select RP2_FLASH_W25Q080

boards/adafruit/feather_rfm95_rp2040/Kconfig.adafruit_feather_rfm95_rp2040

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# Copyright (c) 2025 Jonas Berg

# SPDX-License-Identifier: Apache-2.0



config BOARD_ADAFRUIT_FEATHER_RFM95_RP2040

	select SOC_RP2040

boards/adafruit/feather_rfm95_rp2040/Kconfig.defconfig

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# Copyright (c) 2022 Peter Johanson

# SPDX-License-Identifier: Apache-2.0



if BOARD_ADAFRUIT_FEATHER_RFM95_RP2040



if I2C_DW



config I2C_DW_CLOCK_SPEED

	default 125



endif # I2C_DW



config USB_SELF_POWERED

	default n



endif # BOARD_ADAFRUIT_FEATHER_RFM95_RP2040

boards/adafruit/feather_rfm95_rp2040/adafruit_feather_rfm95_rp2040-pinctrl.dtsi

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/*

 * Copyright (c) 2025 Jonas Berg

 *

 * SPDX-License-Identifier: Apache-2.0

 */



#include <dt-bindings/pinctrl/rpi-pico-rp2040-pinctrl.h>



&pinctrl {

	uart0_default: uart0_default {

		group1 {

			pinmux = <UART0_TX_P0>;

		};



		group2 {

			pinmux = <UART0_RX_P1>;

			input-enable;

		};

	};



	i2c1_default: i2c1_default {

		group1 {

			pinmux = <I2C1_SDA_P2>;

			input-enable;

		};



		group2 {

			pinmux = <I2C1_SCL_P3>;

			input-enable;

		};

	};



	spi1_default: spi1_default {

		group1 {

			/* Pin GPIO16 is used as CS (no pinmux available) */

			pinmux = <SPI1_TX_P15>, <SPI1_SCK_P14>;

		};



		group2 {

			pinmux = <SPI1_RX_P8>;

			input-enable;

		};

	};



	adc_default: adc_default {

		group1 {

			pinmux = <ADC_CH0_P26>, <ADC_CH1_P27>, <ADC_CH2_P28>, <ADC_CH3_P29>;

			input-enable;

		};

	};



	ws2812_pio0_default: ws2812_pio0_default {

		group1 {

			pinmux = <PIO0_P4>;

		};

	};

};

boards/adafruit/feather_rfm95_rp2040/adafruit_feather_rfm95_rp2040.dts

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/*

 * Copyright (c) 2021 Yonatan Schachter

 * Copyright (c) 2022 Peter Johanson

 * Copyright (c) 2025 Jonas Berg

 *

 * SPDX-License-Identifier: Apache-2.0

 */



/dts-v1/;



#include <raspberrypi/rpi_pico/rp2040.dtsi>

#include <dt-bindings/pinctrl/rpi-pico-rp2040-pinctrl.h>

#include <zephyr/dt-bindings/input/input-event-codes.h>

#include <zephyr/dt-bindings/led/led.h>

#include "adafruit_feather_rfm95_rp2040-pinctrl.dtsi"

#include "feather_connector.dtsi"



/ {

	model = "Adafruit Feather RP2040 RFM95 Lora";

	compatible = "adafruit,feather_rfm95_rp2040";



	chosen {

		zephyr,sram = &sram0;

		zephyr,flash = &flash0;

		zephyr,flash-controller = &ssi;

		zephyr,console = &uart0;

		zephyr,shell-uart = &uart0;

		zephyr,code-partition = &code_partition;

	};



	aliases {

		watchdog0 = &wdt0;

		led-strip = &ws2812;

		led0 = &red_led;

		sw0 = &user_button;

		lora0 = &lora;

	};



	zephyr,user {

		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>;

	};



	leds: leds {

		compatible = "gpio-leds";



		red_led: red_led {

			gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;

			label = "Red LED";

		};

	};



	gpio_keys {

		compatible = "gpio-keys";



		user_button: button {

			label = "User";

			gpios = <&gpio0 7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

			zephyr,code = <INPUT_KEY_0>;

		};

	};



	stemma_connector: stemma_connector {

		compatible = "stemma-qt-connector";

		#gpio-cells = <2>;

		gpio-map-mask = <0xffffffff 0xffffffc0>;

		gpio-map-pass-thru = <0 0x3f>;

		gpio-map = <0 0 &gpio0 3 0>, /* SCL */

			<1 0 &gpio0 2 0>; /* SDA */

	};

};



&flash0 {

	reg = <0x10000000 DT_SIZE_M(8)>;



	partitions {

		compatible = "fixed-partitions";

		#address-cells = <1>;

		#size-cells = <1>;



		/* Reserved memory for the second stage bootloader */

		second_stage_bootloader: partition@0 {

			label = "second_stage_bootloader";

			reg = <0x00000000 0x100>;

			read-only;

		};



		/*

		 * Usable flash. Starts at 0x100, after the bootloader. The partition

		 * size is 8 MB minus the 0x100 bytes taken by the bootloader.

		 */

		code_partition: partition@100 {

			label = "code-partition";

			reg = <0x100 (DT_SIZE_M(8) - 0x100)>;

			read-only;

		};

	};

};



&gpio0 {

	status = "okay";

};



&uart0 {

	current-speed = <115200>;

	status = "okay";

	pinctrl-0 = <&uart0_default>;

	pinctrl-names = "default";

};



zephyr_i2c: &i2c1 {

	status = "okay";

	pinctrl-0 = <&i2c1_default>;

	pinctrl-names = "default";

	clock-frequency = <I2C_BITRATE_FAST>;

};



&spi1 {

	pinctrl-0 = <&spi1_default>;

	pinctrl-names = "default";

	status = "okay";

	cs-gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;



	lora: radio@0 {

		reg = <0>;

		compatible = "semtech,sx1276";

		reset-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>;

		dio-gpios = <&gpio0 21 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>, /* SX1276 DIO0 */

			<&gpio0 22 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>, /* SX1276 DIO1 */

			<&gpio0 23 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>, /* SX1276 DIO2 */

			<&gpio0 19 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>, /* SX1276 DIO3 */

			<&gpio0 20 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>, /* SX1276 DIO4 */

			<&gpio0 18 (GPIO_PULL_DOWN | GPIO_ACTIVE_HIGH)>; /* SX1276 DIO5 */

		spi-max-frequency = <10000000>;

		power-amplifier-output = "pa-boost";

	};

};



&timer {

	status = "okay";

};



&wdt0 {

	status = "okay";

};



&adc {

	status = "okay";

	pinctrl-0 = <&adc_default>;

	pinctrl-names = "default";

	#address-cells = <1>;

	#size-cells = <0>;



	channel@0 {

		reg = <0>;

		zephyr,gain = "ADC_GAIN_1";

		zephyr,reference = "ADC_REF_INTERNAL";

		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

		zephyr,resolution = <12>;

	};



	channel@1 {

		reg = <1>;

		zephyr,gain = "ADC_GAIN_1";

		zephyr,reference = "ADC_REF_INTERNAL";

		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

		zephyr,resolution = <12>;

	};



	channel@2 {

		reg = <2>;

		zephyr,gain = "ADC_GAIN_1";

		zephyr,reference = "ADC_REF_INTERNAL";

		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

		zephyr,resolution = <12>;

	};



	channel@3 {

		reg = <3>;

		zephyr,gain = "ADC_GAIN_1";

		zephyr,reference = "ADC_REF_INTERNAL";

		zephyr,acquisition-time = <ADC_ACQ_TIME_DEFAULT>;

		zephyr,resolution = <12>;

	};

};



&pio0 {

	status = "okay";



	pio-ws2812 {

		compatible = "worldsemi,ws2812-rpi_pico-pio";

		status = "okay";

		pinctrl-0 = <&ws2812_pio0_default>;

		pinctrl-names = "default";

		bit-waveform = <3>, <3>, <4>;



		ws2812: ws2812 {

			status = "okay";

			gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;

			chain-length = <1>;

			color-mapping = <LED_COLOR_ID_GREEN

				LED_COLOR_ID_RED

				LED_COLOR_ID_BLUE>;

			reset-delay = <280>;

			frequency = <800000>;

		};

	};

};



zephyr_udc0: &usbd {

	status = "okay";

};



&die_temp {

	status = "okay";

};



&vreg {

	regulator-always-on;

	regulator-allowed-modes = <REGULATOR_RPI_PICO_MODE_NORMAL>;

};



&xosc {

	startup-delay-multiplier = <64>;

};

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