Add MKS Robin Nano board support and remove custom plank board files

Author: andre-stefanov

boards/common/example_runner.board.cmake

@@ -1,5 +1,5 @@
 # Copyright (c) 2021 Nordic Semiconductor ASA
 # SPDX-License-Identifier: Apache-2.0
 
-config BOARD_CUSTOM_PLANK
-	select SOC_NRF52840_QIAA
+config BOARD_ROBIN_NANO
+	select SOC_STM32F407XG

boards/vendor/custom_plank/Kconfig.custom_plank renamed to boards/mks/robin_nano/Kconfig.robin_nano

@@ -0,0 +1,7 @@
+# Copyright (c) 2021 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+board_runner_args(jlink "--device=STM32F407VG" "--speed=4000")
+
+include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
+include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

boards/mks/robin_nano/board.cmake

@@ -0,0 +1,5 @@
+board:
+  name: robin_nano
+  vendor: mks
+  socs:
+    - name: stm32f407xx

boards/mks/robin_nano/board.yml

@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2021 Nordic Semiconductor ASA
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+ /dts-v1/;
+ #include <st/f4/stm32f407Xg.dtsi>
+ #include <st/f4/stm32f407v(e-g)tx-pinctrl.dtsi>
+
+/ {
+	model = "MKS Robin Nano board";
+	compatible = "mks,robin_nano";
+
+	chosen {
+		zephyr,console = &usart3;
+		zephyr,shell-uart = &usart3;
+		zephyr,sram = &sram0;
+		zephyr,flash = &flash0;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		tf_led: led_0 {
+			gpios = <&gpiod 12 GPIO_ACTIVE_HIGH>;
+			label = "TF Card detection LED";
+		};
+	};
+
+	aliases {
+		led0 = &tf_led;
+	};
+};
+
+&clk_lsi {
+	status = "okay";
+};
+
+&clk_hse {
+	clock-frequency = <DT_FREQ_M(8)>;
+	status = "okay";
+};
+
+&pll {
+	div-m = <8>;
+	mul-n = <336>;
+	div-p = <2>;
+	div-q = <7>;
+	clocks = <&clk_hse>;
+	status = "okay";
+};
+
+&rcc {
+	clocks = <&pll>;
+	clock-frequency = <DT_FREQ_M(168)>;
+	ahb-prescaler = <1>;
+	apb1-prescaler = <4>;
+	apb2-prescaler = <2>;
+};
+
+&usart1 {
+	pinctrl-0 = <&usart1_tx_pb6 &usart1_rx_pb7>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
+&usart2 {
+	pinctrl-0 = <&usart2_tx_pa2 &usart2_rx_pa3>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
+&usart3 {
+	pinctrl-0 = <&usart3_tx_pb10 &usart3_rx_pb11>;
+	pinctrl-names = "default";
+	current-speed = <115200>;
+	status = "okay";
+};
+
+zephyr_udc0: &usbotg_fs {
+	pinctrl-0 = <&usb_otg_fs_dm_pa11 &usb_otg_fs_dp_pa12>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&rtc {
+	clocks = <&rcc STM32_CLOCK_BUS_APB1 0x10000000>,
+		 <&rcc STM32_SRC_LSI RTC_SEL(2)>;
+	status = "okay";
+};

boards/mks/robin_nano/doc/MKS Robin Nano V3.1_001 PIN.pdf

@@ -0,0 +1,20 @@
+# Enable MPU
+CONFIG_ARM_MPU=y
+
+# Enable HW stack protection
+CONFIG_HW_STACK_PROTECTION=y
+
+CONFIG_SERIAL=y
+
+# console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# enable GPIO
+CONFIG_GPIO=y
+
+# Enable Clocks
+CONFIG_CLOCK_CONTROL=y
+
+# enable pin controller
+CONFIG_PINCTRL=y

boards/mks/robin_nano/doc/MKS Robin Nano V3.1_001 SCH.pdf

@@ -0,0 +1,12 @@
+source [find board/stm32f4discovery.cfg]
+
+$_TARGETNAME configure -event gdb-attach {
+	echo "Debugger attaching: halting execution"
+	reset halt
+	gdb_breakpoint_override hard
+}
+
+$_TARGETNAME configure -event gdb-detach {
+	echo "Debugger detaching: resuming execution"
+	resume
+}