boards: arm: Add support for Arduino Nicla Sense ME

This commit adds support for the Arduino Nicla Sense ME board.
The board functionality has been tested using the samples:
- hello_world
- philosophers
- peripheral_dis
- spi_flash

Signed-off-by: Benjamin Björnsson <benjamin.bjornsson@gmail.com>

boards/arm/arduino_nicla_sense_me/Kconfig.board

@@ -0,0 +1,8 @@
+# Arduino Nicla Sense ME board configuration
+
+# Copyright (c) 2022 Benjamin Björnsson <benjamin.bjornsson@gmail.com>.
+# SPDX-License-Identifier: Apache-2.0
+
+config BOARD_ARDUINO_NICLA_SENSE_ME
+	bool "Arduino Nicla Sense ME"
+	depends on SOC_NRF52832_QFAA

boards/arm/arduino_nicla_sense_me/Kconfig.defconfig

@@ -0,0 +1,14 @@
+# Arduino Nicla Sense ME board configuration
+
+# Copyright (c) 2022 Benjamin Björnsson <benjamin.bjornsson@gmail.com>.
+# SPDX-License-Identifier: Apache-2.0
+
+if BOARD_ARDUINO_NICLA_SENSE_ME
+
+config BOARD
+	default "arduino_nicla_sense_me"
+
+config BT_CTLR
+	default BT
+
+endif # BOARD_ARDUINO_NICLA_SENSE_ME

boards/arm/arduino_nicla_sense_me/arduino_nicla_sense_me-pinctrl.dtsi

@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2022 Benjamin Björnsson <benjamin.bjornsson@gmail.com>.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&pinctrl {
+	uart0_default: uart0_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 0, 20)>,
+				<NRF_PSEL(UART_RX, 0, 9)>;
+		};
+	};
+
+	uart0_sleep: uart0_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 0, 20)>,
+				<NRF_PSEL(UART_RX, 0, 9)>;
+			low-power-enable;
+		};
+	};
+
+	i2c0_default: i2c0_default {
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 15)>,
+				<NRF_PSEL(TWIM_SCL, 0, 16)>;
+		};
+	};
+
+	i2c0_sleep: i2c0_sleep {
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 15)>,
+				<NRF_PSEL(TWIM_SCL, 0, 16)>;
+			low-power-enable;
+		};
+	};
+
+	i2c1_default: i2c1_default {
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 22)>,
+				<NRF_PSEL(TWIM_SCL, 0, 23)>;
+		};
+	};
+
+	i2c1_sleep: i2c1_sleep {
+		group1 {
+			psels = <NRF_PSEL(TWIM_SDA, 0, 22)>,
+				<NRF_PSEL(TWIM_SCL, 0, 23)>;
+			low-power-enable;
+		};
+	};
+
+	spi1_default: spi2_default {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 0, 11)>,
+				<NRF_PSEL(SPIM_MOSI, 0, 27)>,
+				<NRF_PSEL(SPIM_MISO, 0, 28)>;
+		};
+	};
+
+	spi1_sleep: spi2_sleep {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 0, 11)>,
+				<NRF_PSEL(SPIM_MOSI, 0, 27)>,
+				<NRF_PSEL(SPIM_MISO, 0, 28)>;
+			low-power-enable;
+		};
+	};
+
+	spi2_default: spi2_default {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 0, 3)>,
+				<NRF_PSEL(SPIM_MOSI, 0, 4)>,
+				<NRF_PSEL(SPIM_MISO, 0, 5)>;
+		};
+	};
+
+	spi2_sleep: spi2_sleep {
+		group1 {
+			psels = <NRF_PSEL(SPIM_SCK, 0, 3)>,
+				<NRF_PSEL(SPIM_MOSI, 0, 4)>,
+				<NRF_PSEL(SPIM_MISO, 0, 5)>;
+			low-power-enable;
+		};
+	};
+};

boards/arm/arduino_nicla_sense_me/arduino_nicla_sense_me.dts

@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2022 Benjamin Björnsson <benjamin.bjornsson@gmail.com>.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+/dts-v1/;
+#include <nordic/nrf52832_qfaa.dtsi>
+#include "arduino_nicla_sense_me-pinctrl.dtsi"
+
+/ {
+	model = "Arduino Nicla Sense ME";
+	compatible = "arduino,arduino_nicla_sense_me";
+
+	chosen {
+		zephyr,console = &uart0;
+		zephyr,shell-uart = &uart0;
+		zephyr,uart-mcumgr = &uart0;
+		zephyr,bt-mon-uart = &uart0;
+		zephyr,bt-c2h-uart = &uart0;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+		zephyr,code-partition = &slot0_partition;
+	};
+};
+
+&adc {
+	status = "okay";
+};
+
+&gpiote {
+	status = "okay";
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&uart0 {
+	compatible = "nordic,nrf-uarte";
+	status = "okay";
+	current-speed = <115200>;
+	pinctrl-0 = <&uart0_default>;
+	pinctrl-1 = <&uart0_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+/* I2C0 in datasheet */
+&i2c0 {
+	compatible = "nordic,nrf-twim";
+	status = "okay";
+	pinctrl-0 = <&i2c0_default>;
+	pinctrl-1 = <&i2c0_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+/* I2C1 in datasheet */
+&i2c1 {
+	compatible = "nordic,nrf-twim";
+	/* Cannot be used together with spi1. */
+	status = "okay";
+	pinctrl-0 = <&i2c1_default>;
+	pinctrl-1 = <&i2c1_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+/* SPI1 in datasheet */
+&spi1 {
+	compatible = "nordic,nrf-spim";
+	/* Cannot be used together with i2c1. */
+	/* status = "okay"; */
+	pinctrl-0 = <&spi1_default>;
+	pinctrl-1 = <&spi1_sleep>;
+	pinctrl-names = "default", "sleep";
+};
+
+/* SPI0 in datasheet */
+&spi2 {
+	compatible = "nordic,nrf-spi";
+	status = "okay";
+	pinctrl-0 = <&spi2_default>;
+	pinctrl-1 = <&spi2_sleep>;
+	pinctrl-names = "default", "sleep";
+	cs-gpios = <&gpio0 26 GPIO_ACTIVE_LOW>;
+
+	mx25r1635f@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <80000000>;
+		label = "MX25R16";
+		jedec-id = [c2 28 15];
+		size = <DT_SIZE_M(16)>;
+		has-dpd;
+		t-enter-dpd = <10000>;
+		t-exit-dpd = <35000>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			logging_partition: partition@0 {
+				label = "logging";
+				reg = <0x00000000 DT_SIZE_M(16)>;
+			};
+		};
+	};
+};
+
+&flash0 {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		boot_partition: partition@0 {
+			label = "sam-ba";
+			reg = <0x00000000 0x00010000>;
+			read-only;
+		};
+		slot0_partition: partition@10000 {
+			label = "image-0";
+			reg = <0x00010000 0x30000>;
+		};
+		slot1_partition: partition@40000 {
+			label = "image-1";
+			reg = <0x00040000 0x30000>;
+		};
+		scratch_partition: partition@70000 {
+			label = "image-scratch";
+			reg = <0x00070000 0xa000>;
+		};
+		storage_partition: partition@7a000 {
+			label = "storage";
+			reg = <0x0007a000 0x00006000>;
+		};
+	};
+};

boards/arm/arduino_nicla_sense_me/arduino_nicla_sense_me.yaml

@@ -0,0 +1,19 @@
+identifier: arduino_nicla_sense_me
+name: Arduino Nicla Sense ME
+type: mcu
+arch: arm
+ram: 64
+flash: 512
+toolchain:
+  - zephyr
+  - gnuarmemb
+  - xtools
+supported:
+  - gpio
+  - i2c
+  - spi
+  - shell
+  - counter
+  - nvs
+  - pwm
+  - watchdog

boards/arm/arduino_nicla_sense_me/arduino_nicla_sense_me_defconfig

@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SOC_NRF52832_QFAA=y
+CONFIG_BOARD_ARDUINO_NICLA_SENSE_ME=y
+
+# Enable MPU
+CONFIG_ARM_MPU=y
+CONFIG_HW_STACK_PROTECTION=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# enable uart driver
+CONFIG_SERIAL=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# additional board options
+CONFIG_GPIO_AS_PINRESET=y
+
+# enable pin controller
+CONFIG_PINCTRL=y

boards/arm/arduino_nicla_sense_me/board.cmake

@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(pyocd "--target=nrf52" "--frequency=400000")
+include(${ZEPHYR_BASE}/boards/common/pyocd.board.cmake)