boards: Add support for the nRF52 DK board (PCA10040)

Add board support for the Nordic Semiconductor's
nRF52832 (nRF52 series) Development Kit.

JIRA: ZEP-377
Change-Id: I6d8f1f7ec1b8a068193f6ba67c8a1ab9f399f80b
Signed-off-by: Glenn Ruben Bakke <glenn.ruben.bakke@nordicsemi.no>
Signed-off-by: Vinayak Kariappa Chettimada <vinayak.kariappa.chettimada@nordicsemi.no>
Signed-off-by: Håkon Alseth <haakon.alseth@nordicsemi.no>
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>

boards/nrf52_pca10040/Kconfig

@@ -0,0 +1,23 @@
+# Kconfig - nRF52 PCA10040 board configuration
+#
+# Copyright (c) 2016 Nordic Semiconductor ASA
+#
+# Licensed 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.
+
+if BOARD_NRF52_PCA10040
+
+config  GPIO_AS_PINRESET
+        bool "GPIO as pin reset (reset button)"
+        default y
+
+endif # BOARD_NRF52_PCA10040

boards/nrf52_pca10040/Kconfig.board

@@ -0,0 +1,19 @@
+# Kconfig - nRF52 PCA10040 board configuration
+#
+# Copyright (c) 2016 Nordic Semiconductor ASA
+#
+# Licensed 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.
+
+config  BOARD_NRF52_PCA10040
+        bool "nRF52 PCA10040"
+        depends on SOC_NRF52832

boards/nrf52_pca10040/Kconfig.defconfig

@@ -0,0 +1,35 @@
+# Kconfig - nRF52 PCA10040 board configuration
+#
+# Copyright (c) 2016 Nordic Semiconductor ASA
+#
+# Licensed 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.
+
+if BOARD_NRF52_PCA10040
+
+config BOARD
+	default nrf52_pca10040
+
+if UART_NRF5
+
+config GPIO
+	default y
+
+config GPIO_NRF5
+	default y
+
+config GPIO_NRF5_P0
+	default y
+
+endif # UART_NRF5
+
+endif # BOARD_NRF52_PCA10040

boards/nrf52_pca10040/Makefile

@@ -0,0 +1,5 @@
+ccflags-y += -I$(srctree)/include/drivers
+ccflags-y += -I$(srctree)/drivers
+asflags-y := ${ccflags-y}
+
+obj-y += board.o

boards/nrf52_pca10040/board.c

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2016 Nordic Semiconductor ASA
+ *
+ * Licensed 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 <nanokernel.h>
+#include "board.h"
+#include <uart.h>
+#include <device.h>
+#include <init.h>

boards/nrf52_pca10040/board.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2016 Nordic Semiconductor ASA
+ *
+ * Licensed 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 __INC_BOARD_H
+#define __INC_BOARD_H
+
+#include <soc.h>
+
+#endif /* __INC_BOARD_H */

boards/nrf52_pca10040/nrf52_pca10040_defconfig

@@ -0,0 +1,20 @@
+CONFIG_ARM=y
+CONFIG_BOARD_NRF52_PCA10040=y
+CONFIG_SOC_FAMILY_NRF5=y
+CONFIG_SOC_SERIES_NRF52X=y
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=64000000
+CONFIG_CORTEX_M_SYSTICK=y
+CONFIG_FLASH_SIZE=512
+CONFIG_SRAM_SIZE=64
+CONFIG_XIP=y
+
+# enable uart driver
+CONFIG_SERIAL=y
+CONFIG_UART_NRF5=y
+
+# enable console
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+
+# additional board options
+CONFIG_GPIO_AS_PINRESET=y