board: add initial support for Nucleo-64 with Soc STM32F411RE

Change-Id: I698693bccce1e9599c20e57f5d4172643ca38cc9
Signed-off-by: Matthias Boesl <matthias.boesl@gmail.com>

arch/arm/soc/st_stm32/stm32f4/Kconfig.defconfig.stm32f411xe

@@ -0,0 +1,34 @@
+# Kconfig - ST STM32F411CE MCU configuration options
+#
+# Copyright (c) 2016 Linaro Limited.
+#
+# 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 SOC_STM32F411XE
+
+config SOC
+	string
+	default stm32f411xe
+
+config SRAM_SIZE
+	default 128
+
+config FLASH_SIZE
+	default 512
+
+config NUM_IRQS
+	int
+	default 85
+
+endif # SOC_STM32F411XE

arch/arm/soc/st_stm32/stm32f4/Kconfig.soc

@@ -22,4 +22,7 @@ depends on SOC_SERIES_STM32F4X
 config SOC_STM32F401XE
 	bool "STM32F401XE"
 
+config SOC_STM32F411XE
+	bool "STM32F411XE"
+
 endchoice

boards/arm/nucleo_f411re/Kconfig.board

@@ -0,0 +1,20 @@
+# Kconfig - NUCLEO-64 F411RE board configuration
+#
+# Copyright (c) 2016 Matthias Boesl
+#
+# 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_NUCLEO_F411RE
+	bool "NUCLEO-64 F411RE Development Board"
+	depends on SOC_STM32F411XE

boards/arm/nucleo_f411re/Kconfig.defconfig

@@ -0,0 +1,23 @@
+# Kconfig - NUCLEO-64 F411RE board configuration
+#
+# Copyright (c) 2016 Matthias Boesl
+#
+# 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_NUCLEO_F411RE
+
+config BOARD
+	default nucleo_f411re
+
+endif # BOARD_NUCLEO_F411RE

boards/arm/nucleo_f411re/Makefile

@@ -0,0 +1,2 @@
+# No C files (yet)
+obj- += dummy.o

boards/arm/nucleo_f411re/Makefile.board

@@ -0,0 +1,6 @@
+FLASH_SCRIPT = openocd.sh
+
+OPENOCD_LOAD_CMD = "flash write_image erase ${O}/${KERNEL_BIN_NAME} ${CONFIG_FLASH_BASE_ADDRESS}"
+OPENOCD_VERIFY_CMD = "verify_image ${O}/${KERNEL_BIN_NAME} ${CONFIG_FLASH_BASE_ADDRESS}"
+
+export FLASH_SCRIPT OPENOCD_LOAD_CMD OPENOCD_VERIFY_CMD

boards/arm/nucleo_f411re/board.h

@@ -0,0 +1,22 @@
+/*
+ * Copyright (c) 2016 Matthias Boesl
+ *
+ * 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/arm/nucleo_f411re/nucleo_f411re_defconfig

@@ -0,0 +1,36 @@
+CONFIG_ARM=y
+CONFIG_BOARD_NUCLEO_F411RE=y
+CONFIG_SOC_SERIES_STM32F4X=y
+CONFIG_SOC_STM32F411XE=y
+# 96MHz system clock (highest value to get a precise USB clock)
+CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=96000000
+CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
+
+# enable USART2 - passthrough to STLINK v2 connector
+CONFIG_UART_STM32_PORT_2=y
+CONFIG_UART_STM32_PORT_2_BAUD_RATE=115200
+# enable console on this port by default
+CONFIG_UART_CONSOLE_ON_DEV_NAME="UART_2"
+
+# enable pinmux
+CONFIG_PINMUX=y
+
+# enable GPIO ports A, B, C
+CONFIG_GPIO=y
+
+# clock configuration
+CONFIG_CLOCK_CONTROL=y
+CONFIG_CLOCK_STM32F4X_SYSCLK_SRC_PLL=y
+# use HSE as PLL input
+CONFIG_CLOCK_STM32F4X_PLL_SRC_HSE=y
+# however, the board does not have an external oscillator, so just use
+# the 8MHz clock signal coming from integrated STLink
+CONFIG_CLOCK_STM32F4X_HSE_BYPASS=y
+# produce 96MHz clock at PLL output
+CONFIG_CLOCK_STM32F4X_PLLM_DIV_FACTOR=8
+CONFIG_CLOCK_STM32F4X_PLLN_MULTIPLIER=384
+CONFIG_CLOCK_STM32F4X_PLLP_DIV_FACTOR=4
+CONFIG_CLOCK_STM32F4X_PLLQ_DIV_FACTOR=8
+CONFIG_CLOCK_STM32F4X_AHB_PRESCALER=0
+CONFIG_CLOCK_STM32F4X_APB1_PRESCALER=2
+CONFIG_CLOCK_STM32F4X_APB2_PRESCALER=0

boards/arm/nucleo_f411re/support/openocd.cfg

@@ -0,0 +1,12 @@
+source [find board/st_nucleo_f4.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
+}

drivers/pinmux/Makefile

@@ -11,6 +11,7 @@ obj-$(CONFIG_PINMUX_STM32) += stm32/pinmux_stm32.o
 obj-$(CONFIG_PINMUX_BEETLE) += beetle/pinmux_board_v2m_beetle.o
 obj-$(CONFIG_BOARD_NUCLEO_F103RB) += stm32/pinmux_board_nucleo_f103rb.o
 obj-$(CONFIG_BOARD_NUCLEO_F401RE) += stm32/pinmux_board_nucleo_f401re.o
+obj-$(CONFIG_BOARD_NUCLEO_F411RE) += stm32/pinmux_board_nucleo_f411re.o
 obj-$(CONFIG_BOARD_96B_CARBON) += stm32/pinmux_board_carbon.o
 obj-$(CONFIG_BOARD_NUCLEO_L476RG) += stm32/pinmux_board_nucleo_l476rg.o
 obj-$(CONFIG_BOARD_OLIMEXINO_STM32) += stm32/pinmux_board_olimexino_stm32.o

drivers/pinmux/stm32/pinmux_board_nucleo_f411re.c

@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2016 Linaro Limited.
+ *
+ * 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 <device.h>
+#include <init.h>
+#include <pinmux.h>
+#include <sys_io.h>
+#include "pinmux/pinmux.h"
+
+#include "pinmux_stm32.h"
+
+/* pin assignments for NUCLEO-F411RE board */
+static const struct pin_config pinconf[] = {
+#ifdef CONFIG_UART_STM32_PORT_1
+	{STM32_PIN_PB6, STM32F4_PINMUX_FUNC_PB6_USART1_TX},
+	{STM32_PIN_PB7, STM32F4_PINMUX_FUNC_PB7_USART1_RX},
+#endif	/* CONFIG_UART_STM32_PORT_1 */
+#ifdef CONFIG_UART_STM32_PORT_2
+	{STM32_PIN_PA2, STM32F4_PINMUX_FUNC_PA2_USART2_TX},
+	{STM32_PIN_PA3, STM32F4_PINMUX_FUNC_PA3_USART2_RX},
+#endif	/* CONFIG_UART_STM32_PORT_2 */
+};
+
+static int pinmux_stm32_init(struct device *port)
+{
+	ARG_UNUSED(port);
+
+	stm32_setup_pins(pinconf, ARRAY_SIZE(pinconf));
+
+	return 0;
+}
+
+SYS_INIT(pinmux_stm32_init, PRE_KERNEL_1,
+		CONFIG_PINMUX_STM32_DEVICE_INITIALIZATION_PRIORITY);