board: Add support for Adafruit QT PY RP2040

Adding support for the Adafruit QT PY RP2040.

Signed-off-by: Kelly Helmut Lord <[email protected]>
Signed-off-by: Ian Wakely <[email protected]>

boards/arm/adafruit_qt_py_rp2040/Kconfig.board

@@ -0,0 +1,6 @@
+# Copyright (c) 2022 Kelly Lord
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_ADAFRUIT_QT_PY_RP2040
+	bool "Adafruit QT Py RP2040 Board"
+	depends on SOC_RP2040

boards/arm/adafruit_qt_py_rp2040/Kconfig.defconfig

@@ -0,0 +1,22 @@
+# Copyright (c) 2022 Peter Johanson
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_ADAFRUIT_QT_PY_RP2040
+
+config BOARD
+	default "adafruit_qt_py_rp2040"
+
+config RP2_FLASH_W25Q080
+	default y
+
+if I2C_DW
+
+config I2C_DW_CLOCK_SPEED
+	default 125
+
+endif #I2C_DW
+
+config USB_SELF_POWERED
+	default n
+
+endif # BOARD_ADAFRUIT_QT_PY_RP2040

boards/arm/adafruit_qt_py_rp2040/adafruit_qt_py_rp2040-pinctrl.dtsi

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2021, Yonatan Schachter
+ * Copyright (c) 2022, Peter Johanson
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include <dt-bindings/pinctrl/rpi-pico-rp2040-pinctrl.h>
+
+&pinctrl {
+	uart1_default: uart1_default {
+		group1 {
+			pinmux = <UART1_TX_P20>;
+		};
+		group2 {
+			pinmux = <UART1_RX_P5>;
+			input-enable;
+		};
+	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			pinmux = <I2C0_SDA_P24>;
+			input-enable;
+		};
+		group2 {
+			pinmux = <I2C0_SCL_P25>;
+			input-enable;
+		};
+	};
+
+	i2c1_default: i2c1_default {
+		group1 {
+			pinmux = <I2C1_SDA_P22>;
+			input-enable;
+		};
+		group2 {
+			pinmux = <I2C1_SCL_P23>;
+			input-enable;
+		};
+	};
+
+	spi0_default: spi0_default {
+		group1 {
+			pinmux = <SPI0_TX_P3>;
+		};
+		group2 {
+			pinmux = <SPI0_RX_P4>;
+			input-enable;
+		};
+		group3 {
+			pinmux = <SPI0_SCK_P6>;
+		};
+	};
+
+	adc_default: adc_default {
+		group1 {
+			pinmux = <ADC_CH0_P26>, <ADC_CH1_P27>, <ADC_CH2_P28>, <ADC_CH3_P29>;
+			input-enable;
+		};
+	};
+
+	clocks_default: clocks_default {
+	};
+};

boards/arm/adafruit_qt_py_rp2040/adafruit_qt_py_rp2040.dts

@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2021 Yonatan Schachter
+ * Copyright (c) 2022 Peter Johanson
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+
+#include <rpi_pico/rp2040.dtsi>
+#include "adafruit_qt_py_rp2040-pinctrl.dtsi"
+#include "seeed_xiao_connector.dtsi"
+#include <freq.h>
+
+/ {
+	chosen {
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,flash-controller = &ssi;
+		zephyr,console = &uart1;
+		zephyr,shell-uart = &uart1;
+		zephyr,code-partition = &code_partition;
+	};
+
+	aliases {
+		watchdog0 = &wdt0;
+	};
+};
+
+&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 8MB minus the 0x100 bytes taken by the bootloader.
+		 */
+		code_partition: partition@100 {
+			label = "code-partition";
+			reg = <0x100 (DT_SIZE_M(8) - 0x100)>;
+			read-only;
+		};
+	};
+};
+
+&clocks {
+	pinctrl-0 = <&clocks_default>;
+	pinctrl-names = "default";
+};
+
+&uart1 {
+	current-speed = <115200>;
+	status = "okay";
+	pinctrl-0 = <&uart1_default>;
+	pinctrl-names = "default";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&i2c0 {
+	clock-frequency = <I2C_BITRATE_FAST>;
+	status = "okay";
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-names = "default";
+};
+
+&i2c1 {
+	pinctrl-0 = <&i2c1_default>;
+	pinctrl-names = "default";
+	status = "okay";
+	clock-frequency = <I2C_BITRATE_FAST>;
+};
+
+&spi0 {
+	clock-frequency = <DT_FREQ_M(8)>;
+	status = "okay";
+	pinctrl-0 = <&spi0_default>;
+	pinctrl-names = "default";
+};
+
+&timer {
+	status = "okay";
+};
+
+&wdt0 {
+	status = "okay";
+};
+
+&adc {
+	status = "okay";
+	pinctrl-0 = <&adc_default>;
+	pinctrl-names = "default";
+};
+
+&pio0 {
+	status = "okay";
+};
+
+zephyr_udc0: &usbd {
+	status = "okay";
+};
+
+&vreg {
+	regulator-always-on;
+	regulator-allowed-modes = <REGULATOR_RPI_PICO_MODE_NORMAL>;
+};

boards/arm/adafruit_qt_py_rp2040/adafruit_qt_py_rp2040.yaml

@@ -0,0 +1,23 @@
+identifier: adafruit_qt_py_rp2040
+name: Adafruit QT Py RP2040
+type: mcu
+arch: arm
+flash: 8192
+ram: 264
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - uart
+  - gpio
+  - adc
+  - i2c
+  - spi
+  - hwinfo
+  - watchdog
+  - pwm
+  - flash
+  - dma
+  - counter
+  - clock

boards/arm/adafruit_qt_py_rp2040/adafruit_qt_py_rp2040_defconfig

@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_SOC_SERIES_RP2XXX=y
+CONFIG_SOC_RP2040=y
+CONFIG_BOARD_ADAFRUIT_QT_PY_RP2040=y
+
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=125000000
+
+# enable uart driver
+CONFIG_SERIAL=y
+CONFIG_UART_INTERRUPT_DRIVEN=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# Enable reset by default
+CONFIG_RESET=y
+
+# Enable clock control by default
+CONFIG_CLOCK_CONTROL=y
+
+# Code partition needed to target the correct flash range
+CONFIG_USE_DT_CODE_PARTITION=y
+
+# Output UF2 by default, native bootloader supports it.
+CONFIG_BUILD_OUTPUT_UF2=y

boards/arm/adafruit_qt_py_rp2040/board.cmake

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: Apache-2.0
+# Copyright (c) 2023 TOKITA Hiroshi
+
+board_runner_args(uf2 "--board-id=RPI-RP2")
+
+include(${ZEPHYR_BASE}/boards/common/uf2.board.cmake)