Commit 351f39f9 authored by Sahaj Sarup's avatar Sahaj Sarup Committed by Kumar Gala
Browse files

board: arm: Add Support For 96Boards Aerocore2 



Changes:

- Added all required board files in /boards/arm/96b_aerocore2
- Modified pinmux for stm32f4

Most of the changes in this PR is based on reverse-engineering of the
PCB layout and following commits in the PX4 firmware repository for
the same board. The manufacturer does not provide and or generate
schematics and pinout tables for this board.

This PR includes almost all of the interfaces connected to the STM32
MCU, the only thing not included is the J9 and J8 headers that connect
to a 96Boards baseboard.
These headers are not vital to the functionality of the Aerocore2.

Signed-off-by: default avatarSahaj Sarup <sahaj.sarup@linaro.org>
parent 161d8c0c

boards/arm/96b_aerocore2/96b_aerocore2.dts

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/*

 * Copyright (c) 2020 Linaro Limited

 *

 * SPDX-License-Identifier: Apache-2.0

 */



/dts-v1/;



#include <st/f4/stm32f427vi.dtsi>



/ {

	model = "96Boards Gumstix AeroCore 2";

	compatible = "gumstix,aerocore2", "st,stm32f427";



	chosen {

		zephyr,console = &uart7;

		zephyr,shell-uart = &uart7;

		zephyr,sram = &sram0;

		zephyr,flash = &flash0;

		zephyr,ccm = &ccm0;

	};



	leds {

		compatible = "gpio-leds";

		yellow_led_1: led_1 {

			gpios = <&gpioe 10 GPIO_ACTIVE_HIGH>;

			label = "USR1 LED";

		};

		blue_led_2: led_2 {

			gpios = <&gpioe 9 GPIO_ACTIVE_HIGH>;

			label = "USR2 LED";

		};

	};



	aliases {

		led0 = &yellow_led_1;

		led1 = &blue_led_2;

	};



};



&usart1 {

	current-speed = <115200>;

	status = "okay";

};



&usart2 {

	current-speed = <115200>;

	status = "okay";

};



&usart3 {

	current-speed = <115200>;

	status = "okay";

};



&uart7 {

	current-speed = <115200>;

	status = "okay";

};



&uart8 {

	current-speed = <115200>;

	status = "okay";

};



&spi1 {

	status = "okay";

};



&spi2 {

	status = "okay";

};



&spi3 {

	status = "okay";

};



&spi4 {

	status = "okay";

};



&i2c2 {

	status = "okay";

	clock-frequency = <I2C_BITRATE_FAST>;

};



&usbotg_fs {

	status = "okay";

};



&timers4 {

	status = "okay";



	pwm4: pwm {

		status = "okay";

	};

};



&timers5 {

	status = "okay";



	pwm5: pwm {

		status = "okay";

	};

};



&adc1 {

	status = "okay";

};



&rng {

	status = "okay";

};

boards/arm/96b_aerocore2/96b_aerocore2.yaml

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# Copyright (c) 2020 Linaro Limited

# SPDX-License-Identifier: Apache-2.0





identifier: 96b_aerocore2

name: 96Boards AeroCore 2

type: mcu

arch: arm

toolchain:

  - zephyr

  - gnuarmemb

  - xtools

supported:

  - gpio

  - pwm

  - i2c

  - spi

  - usb_device

  - adc

ram: 256

flash: 2048

boards/arm/96b_aerocore2/96b_aerocore2_defconfig

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# Copyright (c) 2020 Linaro Limited

# SPDX-License-Identifier: Apache-2.0



CONFIG_SOC_SERIES_STM32F4X=y

CONFIG_SOC_STM32F427XX=y

# 168MHz system clock

CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=168000000



# Enable MPU

CONFIG_ARM_MPU=y



CONFIG_SERIAL=y



# console

CONFIG_CONSOLE=y

CONFIG_UART_CONSOLE=y



# enable pinmux

CONFIG_PINMUX=y



# enable GPIO

CONFIG_GPIO=y



# clock configuration

CONFIG_CLOCK_CONTROL=y





# SYSCLK selection

CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y



# use HSE as PLL input

CONFIG_CLOCK_STM32_PLL_SRC_HSE=y

CONFIG_CLOCK_STM32_HSE_CLOCK=24000000



# produce 168MHz clock at PLL output

CONFIG_CLOCK_STM32_PLL_M_DIVISOR=24

CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=336

CONFIG_CLOCK_STM32_PLL_P_DIVISOR=2

CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=7

CONFIG_CLOCK_STM32_AHB_PRESCALER=1



# APB1 clock must not exceed 50MHz limit

CONFIG_CLOCK_STM32_APB1_PRESCALER=4

CONFIG_CLOCK_STM32_APB2_PRESCALER=2

boards/arm/96b_aerocore2/CMakeLists.txt

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#  Copyright (c) 2020 Linaro Limited

#  SPDX-License-Identifier: Apache-2.0



if(CONFIG_PINMUX)

zephyr_library()

zephyr_library_sources(pinmux.c)

zephyr_library_include_directories(${ZEPHYR_BASE}/drivers)

endif()

boards/arm/96b_aerocore2/Kconfig.board

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#  Copyright (c) 2020 Linaro Limited

#  SPDX-License-Identifier: Apache-2.0



config BOARD_96B_AEROCORE2

	bool "96Boards AEROCORE2 (STM32F427)"

	depends on SOC_STM32F427XX

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