Add support for NRF52832 MakerDiary MDK board

boards/Kconfig

@@ -730,6 +730,14 @@ config ARCH_BOARD_NRF52832_SPARKFUN
 	---help---
 		This option selects the Sparkfun nRF52832 breakout board
 
+config ARCH_BOARD_NRF52832_MDK
+	bool "MakerDiary nRF52832 MDK"
+	depends on ARCH_CHIP_NRF52
+	select ARCH_HAVE_LEDS
+	select ARCH_HAVE_BUTTONS
+	---help---
+		This option selects MakerDiary's nRF52832 MDKboard
+
 config ARCH_BOARD_NRF52840_DK
 	bool "Nordic nRF52840 Development Kit (PCA10056)"
 	depends on ARCH_CHIP_NRF52
@@ -2196,6 +2204,7 @@ config ARCH_BOARD
 	default "ne64badge"                if ARCH_BOARD_NE64BADGE
 	default "nrf52-feather"            if ARCH_BOARD_NRF52_FEATHER
 	default "nrf52832-sparkfun"        if ARCH_BOARD_NRF52832_SPARKFUN
+	default "nrf52832-mdk"             if ARCH_BOARD_NRF52832_MDK
 	default "nrf52832-dk"              if ARCH_BOARD_NRF52832_DK
 	default "nrf52840-dk"              if ARCH_BOARD_NRF52840_DK
 	default "nrf52840-dongle"          if ARCH_BOARD_NRF52840_DONGLE
@@ -2538,6 +2547,9 @@ endif
 if ARCH_BOARD_NRF52832_SPARKFUN
 source "boards/arm/nrf52/nrf52832-sparkfun/Kconfig"
 endif
+if ARCH_BOARD_NRF52832_MDK
+source "boards/arm/nrf52/nrf52832-mdk/Kconfig"
+endif
 if ARCH_BOARD_NRF52832_DK
 source "boards/arm/nrf52/nrf52832-dk/Kconfig"
 endif

boards/arm/nrf52/nrf52832-mdk/Kconfig

@@ -0,0 +1,8 @@
+#
+# For a description of the syntax of this configuration file,
+# see the file kconfig-language.txt in the NuttX tools repository.
+#
+
+if ARCH_BOARD_NRF52832_MDK
+
+endif

boards/arm/nrf52/nrf52832-mdk/README.txt

@@ -0,0 +1,6 @@
+MakerDiary nRF52832 MDK
+=======================
+
+https://makerdiary.com/collections/frontpage/products/nrf52832-mdk-iot-micro-development-kit
+
+

boards/arm/nrf52/nrf52832-mdk/configs/nsh/defconfig

@@ -0,0 +1,49 @@
+#
+# This file is autogenerated: PLEASE DO NOT EDIT IT.
+#
+# You can use "make menuconfig" to make any modifications to the installed .config file.
+# You can then do "make savedefconfig" to generate a new defconfig file that includes your
+# modifications.
+#
+# CONFIG_ARCH_FPU is not set
+# CONFIG_NSH_DISABLE_IFCONFIG is not set
+# CONFIG_NSH_DISABLE_PS is not set
+CONFIG_ARCH="arm"
+CONFIG_ARCH_BOARD="nrf52832-sparkfun"
+CONFIG_ARCH_BOARD_NRF52832_SPARKFUN=y
+CONFIG_ARCH_CHIP="nrf52"
+CONFIG_ARCH_CHIP_NRF52832=y
+CONFIG_ARCH_CHIP_NRF52=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_STDARG_H=y
+CONFIG_BOARD_LOOPSPERMSEC=5500
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FS_FAT=y
+CONFIG_MAX_TASKS=16
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_MM_REGIONS=2
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
+CONFIG_NRF52_UART0=y
+CONFIG_NSH_ARCHINIT=y
+CONFIG_NSH_FILEIOSIZE=512
+CONFIG_NSH_LINELEN=64
+CONFIG_NSH_READLINE=y
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_PREALLOC_TIMERS=4
+CONFIG_PREALLOC_WDOGS=4
+CONFIG_RAM_SIZE=65535
+CONFIG_RAM_START=0x20000000
+CONFIG_RAW_BINARY=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_WAITPID=y
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_START_DAY=26
+CONFIG_START_MONTH=3
+CONFIG_SYMTAB_ORDEREDBYNAME=y
+CONFIG_SYSTEM_NSH=y
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USER_ENTRYPOINT="nsh_main"
+CONFIG_WDOG_INTRESERVE=0

boards/arm/nrf52/nrf52832-mdk/include/board.h

@@ -0,0 +1,96 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52832-mdk/include/board.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_NRF52_NRF52832_MDK_INCLUDE_BOARD_H
+#define __BOARDS_ARM_NRF52_NRF52832_MDK_INCLUDE_BOARD_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <stdbool.h>
+
+#if defined(CONFIG_ARCH_IRQBUTTONS) && defined(CONFIG_NRF52_GPIOTE)
+#  include <nuttx/irq.h>
+#endif
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* Clocking *****************************************************************/
+
+#define BOARD_SYSTICK_CLOCK         (64000000)
+
+/* Clocking *****************************************************************/
+
+/* A low output illuminates the LED.
+ *
+ * LED index values for use with board_userled()
+ */
+
+#define BOARD_LED1        0
+#define BOARD_LED2        1
+#define BOARD_LED3        2
+#define BOARD_NLEDS       3
+
+/* LED bits for use with board_userled_all() */
+
+#define BOARD_LED1_BIT    (1 << BOARD_LED1)
+#define BOARD_LED2_BIT    (1 << BOARD_LED2)
+#define BOARD_LED3_BIT    (1 << BOARD_LED3)
+
+/* If CONFIG_ARCH_LEDS is defined, the LED will be controlled as follows
+ * for NuttX debug functionality (where NC means "No Change").
+ */
+
+#define LED_STARTED                0  /* OFF      */
+#define LED_HEAPALLOCATE           0  /* OFF      */
+#define LED_IRQSENABLED            0  /* OFF      */
+#define LED_STACKCREATED           1  /* ON       */
+#define LED_INIRQ                  2  /* NC       */
+#define LED_SIGNAL                 2  /* NC       */
+#define LED_ASSERTION              2  /* NC       */
+#define LED_PANIC                  3  /* Flashing */
+
+/* If CONFIG_ARCH_LEDS is not defined, then the LEDs are completely under
+ * control of the application.  The following interfaces are then available
+ * for application control of the LEDs:
+ *
+ *  uint32_t board_userled_initialize(void);
+ *  void board_userled(int led, bool ledon);
+ *  void board_userled_all(uint32_t ledset);
+ */
+
+/* Button definitions *******************************************************/
+
+/* No buttons on board */
+
+/* UART Pins ****************************************************************/
+
+/* The following definitions must be provided so that the NRF52 serial
+ * driver can set up the UART for the serial console properly.
+ */
+
+#define BOARD_UART0_RX_PIN  (GPIO_INPUT  | GPIO_PORT0 | GPIO_PIN(19))
+#define BOARD_UART0_TX_PIN  (GPIO_OUTPUT | GPIO_PORT0 | GPIO_PIN(20))
+
+#endif /* __BOARDS_ARM_NRF52_NRF52832_MDK_INCLUDE_BOARD_H */

boards/arm/nrf52/nrf52832-mdk/scripts/Make.defs

@@ -0,0 +1,76 @@
+############################################################################
+# boards/arm/nrf52/nrf52832-mdk/src/Makefile
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(TOPDIR)/.config
+include $(TOPDIR)/tools/Config.mk
+include $(TOPDIR)/arch/arm/src/armv7-m/Toolchain.defs
+
+LDSCRIPT = flash_config.ld
+
+ifeq ($(CONFIG_CYGWIN_WINTOOL),y)
+  ARCHSCRIPT = -T "${shell cygpath -w $(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)}"
+else
+  ARCHSCRIPT = -T$(BOARD_DIR)$(DELIM)scripts$(DELIM)$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+STRIP = $(CROSSDEV)strip --strip-unneeded
+AR = $(ARCROSSDEV)ar rcs
+NM = $(ARCROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
+ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
+
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  ARCHOPTIMIZATION = -g
+endif
+
+ifneq ($(CONFIG_DEBUG_NOOPT),y)
+  ARCHOPTIMIZATION += $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions -fcheck-new -fno-rtti
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow -Wundef
+ARCHWARNINGSXX = -Wall -Wshadow -Wundef
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat-pcrel.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+ifneq ($(CROSSDEV),arm-nuttx-elf-)
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  LDFLAGS += -g
+endif

boards/arm/nrf52/nrf52832-mdk/scripts/flash_config.ld

@@ -0,0 +1,105 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52832-mdk/scripts/flash_config.ld
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+MEMORY
+{
+    progmem (rx)  : ORIGIN = 0x00000000, LENGTH = 512K
+    datamem (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
+}
+
+OUTPUT_ARCH(arm)
+ENTRY(__start)         /* Treat __start as the anchor for dead code stripping */
+EXTERN(_vectors)       /* Force the vectors to be included in the output */
+SECTIONS
+{
+    .text :
+    {
+        _stext = ABSOLUTE(.);
+        *(.vectors)
+        *(.text .text.*)
+        *(.fixup)
+        *(.gnu.warning)
+        *(.rodata .rodata.*)
+        *(.gnu.linkonce.t.*)
+        *(.glue_7)
+        *(.glue_7t)
+        *(.got)
+        *(.gcc_except_table)
+        *(.gnu.linkonce.r.*)
+        _etext = ABSOLUTE(.);
+    } > progmem
+
+    .init_section :
+    {
+        _sinit = ABSOLUTE(.);
+        *(.init_array .init_array.*)
+        _einit = ABSOLUTE(.);
+    } > progmem
+
+    .ARM.extab :
+    {
+        *(.ARM.extab*)
+    } > progmem
+
+    __exidx_start = ABSOLUTE(.);
+    .ARM.exidx :
+    {
+        *(.ARM.exidx*)
+    } > progmem
+    __exidx_end = ABSOLUTE(.);
+
+    _eronly = ABSOLUTE(.);
+
+    .data :
+    {
+        _sdata = ABSOLUTE(.);
+        *(.data .data.*)
+        *(.gnu.linkonce.d.*)
+        CONSTRUCTORS
+        . = ALIGN(4);
+        _edata = ABSOLUTE(.);
+    } > datamem AT > progmem
+
+    /* BSS */
+
+    .bss :
+    {
+        _sbss = ABSOLUTE(.);
+        *(.bss .bss.*)
+        *(.gnu.linkonce.b.*)
+        *(COMMON)
+        . = ALIGN(4);
+        _ebss = ABSOLUTE(.);
+    } > datamem
+
+    /* Stabs debugging sections. */
+
+    .stab 0 : { *(.stab) }
+    .stabstr 0 : { *(.stabstr) }
+    .stab.excl 0 : { *(.stab.excl) }
+    .stab.exclstr 0 : { *(.stab.exclstr) }
+    .stab.index 0 : { *(.stab.index) }
+    .stab.indexstr 0 : { *(.stab.indexstr) }
+    .comment 0 : { *(.comment) }
+    .debug_abbrev 0 : { *(.debug_abbrev) }
+    .debug_info 0 : { *(.debug_info) }
+    .debug_line 0 : { *(.debug_line) }
+    .debug_pubnames 0 : { *(.debug_pubnames) }
+    .debug_aranges 0 : { *(.debug_aranges) }
+}

boards/arm/nrf52/nrf52832-mdk/src/Makefile

@@ -0,0 +1,33 @@
+############################################################################
+# boards/arm/nrf52/nrf52832-mdk/src/Makefile
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(TOPDIR)/Make.defs
+
+CSRCS = nrf52_boot.c nrf52_bringup.c
+
+ifeq ($(CONFIG_LIB_BOARDCTL),y)
+CSRCS += nrf52_appinit.c
+endif
+
+ifeq ($(CONFIG_ARCH_LEDS),y)
+CSRCS += nrf52_autoleds.c
+endif
+
+include $(TOPDIR)/boards/Board.mk

boards/arm/nrf52/nrf52832-mdk/src/nrf52832-mdk.h

@@ -0,0 +1,80 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52832-mdk/src/nrf52832-mdk.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __BOARDS_ARM_NRF52_NRF52832_MDK_SRC_NRF52832_MDK_H
+#define __BOARDS_ARM_NRF52_NRF52832_MDK_SRC_NRF52832_MDK_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+
+#include "nrf52_gpio.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/* LED definitions **********************************************************/
+
+/* Definitions to configure LED GPIO as outputs */
+
+#define GPIO_LED1  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN(23))
+#define GPIO_LED2  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN(22))
+#define GPIO_LED3  (GPIO_OUTPUT | GPIO_VALUE_ONE | GPIO_PORT0 | GPIO_PIN(24))
+
+/* Button definitions *******************************************************/
+
+/* No buttons on board */
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public data
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nrf52_bringup
+ *
+ * Description:
+ *   Perform architecture-specific initialization
+ *
+ *   CONFIG_BOARD_LATE_INITIALIZE=y :
+ *     Called from board_late_initialize().
+ *
+ *   CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
+ *     Called from the NSH library
+ *
+ ****************************************************************************/
+
+int nrf52_bringup(void);
+
+#endif /* __ASSEMBLY__ */
+#endif /* __BOARDS_ARM_NRF52_NRF52832_MDK_SRC_NRF52832_MDK_H */

boards/arm/nrf52/nrf52832-mdk/src/nrf52_appinit.c

@@ -0,0 +1,74 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52832-sparkfun.h/src/nrf52_appinit.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/board.h>
+
+#include "chip.h"
+#include "nrf52832-mdk.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_app_initialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ * Input Parameters:
+ *   arg - The boardctl() argument is passed to the board_app_initialize()
+ *         implementation without modification.  The argument has no
+ *         meaning to NuttX; the meaning of the argument is a contract
+ *         between the board-specific initialization logic and the
+ *         matching application logic.  The value could be such things as a
+ *         mode enumeration value, a set of DIP switch switch settings, a
+ *         pointer to configuration data read from a file or serial FLASH,
+ *         or whatever you would like to do with it.  Every implementation
+ *         should accept zero/NULL as a default configuration.
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success; a negated errno value is returned on
+ *   any failure to indicate the nature of the failure.
+ *
+ ****************************************************************************/
+
+int board_app_initialize(uintptr_t arg)
+{
+#ifdef CONFIG_BOARD_LATE_INITIALIZE
+  /* Board initialization already performed by board_late_initialize() */
+
+  return OK;
+#else
+  /* Perform board-specific initialization */
+
+  return nrf52_bringup();
+#endif
+}

boards/arm/nrf52/nrf52832-mdk/src/nrf52_autoleds.c

@@ -0,0 +1,118 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52832-mdk/src/nrf52_autoleds.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "chip.h"
+#include "arm_arch.h"
+#include "arm_internal.h"
+
+#include "nrf52832-mdk.h"
+
+#ifdef CONFIG_ARCH_LEDS
+
+#define LED_ON  0
+#define LED_OFF 1
+
+/* This array maps an LED number to GPIO pin configuration */
+
+static const uint32_t g_ledcfg[BOARD_NLEDS] =
+{
+  GPIO_LED1, GPIO_LED2, GPIO_LED3
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: led_dumppins
+ ****************************************************************************/
+
+#ifdef LED_VERBOSE
+static void led_dumppins(FAR const char *msg)
+{
+  nrf52_pin_dump(PINCONFIG_LED, msg);
+  nrf52_gpio_dump(GPIO_LED, msg);
+}
+#else
+#  define led_dumppins(m)
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_autoled_initialize
+ ****************************************************************************/
+
+void board_autoled_initialize(void)
+{
+  int i;
+
+  /* Configure LED pin as a GPIO outputs */
+
+  led_dumppins("board_autoled_initialize() Entry)");
+
+  for (i = 0; i < BOARD_NLEDS; i++)
+    {
+      nrf52_gpio_config(g_ledcfg[i]);
+    }
+
+  led_dumppins("board_autoled_initialize() Exit");
+}
+
+/****************************************************************************
+ * Name: board_autoled_on
+ ****************************************************************************/
+
+void board_autoled_on(int led)
+{
+  if ((unsigned)led < BOARD_NLEDS)
+    {
+      nrf52_gpio_write(g_ledcfg[led], LED_ON);
+    }
+}
+
+/****************************************************************************
+ * Name: board_autoled_off
+ ****************************************************************************/
+
+void board_autoled_off(int led)
+{
+  if ((unsigned)led < BOARD_NLEDS)
+    {
+      nrf52_gpio_write(g_ledcfg[led], LED_OFF);
+    }
+}
+
+#endif /* CONFIG_ARCH_LEDS */

boards/arm/nrf52/nrf52832-mdk/src/nrf52_boot.c

@@ -0,0 +1,82 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52832-mdk/src/nrf52_boot.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "arm_arch.h"
+#include "arm_internal.h"
+
+#include "nrf52832-mdk.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nrf52_board_initialize
+ *
+ * Description:
+ *   All NRF52xxx architectures must provide the following entry point.
+ *   This entry point is called early in the initialization -- after all
+ *   memory has been configured and mapped but before any devices have been
+ *   initialized.
+ *
+ ****************************************************************************/
+
+void nrf52_board_initialize(void)
+{
+  /* Configure on-board LEDs if LED support has been selected. */
+
+#ifdef CONFIG_ARCH_LEDS
+  board_autoled_initialize();
+#endif
+}
+
+/****************************************************************************
+ * Name: board_late_initialize
+ *
+ * Description:
+ *   If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
+ *   initialization call will be performed in the boot-up sequence to a
+ *   function called board_late_initialize().  board_late_initialize() will
+ *   be called immediately after up_initialize() is called and just before
+ *   the initial application is started.  This additional initialization
+ *   phase may be used, for example, to initialize board-specific device
+ *   drivers.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_BOARD_LATE_INITIALIZE
+void board_late_initialize(void)
+{
+  /* Perform board-specific initialization */
+
+  nrf52_bringup();
+}
+#endif

boards/arm/nrf52/nrf52832-mdk/src/nrf52_bringup.c

@@ -0,0 +1,82 @@
+/****************************************************************************
+ * boards/arm/nrf52/nrf52832-mdk/src/nrf52_bringup.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <syslog.h>
+
+#ifdef CONFIG_NRF52_WDT
+#  include "nrf52_wdt.h"
+#endif
+
+#ifdef CONFIG_USERLED
+#  include <nuttx/leds/userled.h>
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nrf52_bringup
+ *
+ * Description:
+ *   Perform architecture-specific initialization
+ *
+ *   CONFIG_BOARD_LATE_INITIALIZE=y :
+ *     Called from board_late_initialize().
+ *
+ *   CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
+ *     Called from the NSH library
+ *
+ ****************************************************************************/
+
+int nrf52_bringup(void)
+{
+  int ret;
+
+#ifdef CONFIG_NRF52_WDT
+  /* Start Watchdog timer */
+
+  ret = nrf52_wdt_initialize(CONFIG_WATCHDOG_DEVPATH, 1, 1);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: nrf52_wdt_initialize failed: %d\n", ret);
+    }
+#endif
+
+#ifdef CONFIG_USERLED
+  /* Register the LED driver */
+
+  ret = userled_lower_initialize(CONFIG_EXAMPLES_LEDS_DEVPATH);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
+    }
+#endif
+
+  UNUSED(ret);
+  return OK;
+}