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boards: arm: Add Dragino LSN50 LoRA node

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Add dts, kconfig and other necessary code for LSN50 board from Dragino
to work with Zephyr.

Signed-off-by: Endre Karlson <endre.karlson@gmail.com>
This commit is contained in:
Endre Karlson 2018-02-07 23:31:59 +01:00 • committed by Kumar Gala
commit cc1a0f72de
12 changed files with 376 additions and 0 deletions
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37
boards/arm/dragino_lsn50/pinmux.c Normal file
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/*
* Copyright (c) 2018 Endre Karlson <endre.karlson@gmail.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <kernel.h>
#include <device.h>
#include <init.h>
#include <pinmux.h>
#include <sys_io.h>
#include "pinmux/stm32/pinmux_stm32.h"
/* pin assignments for Dragino LSN50 board */
static const struct pin_config pinconf[] = {
#ifdef CONFIG_UART_STM32_PORT_1
{STM32_PIN_PB6, STM32L0_PINMUX_FUNC_PB6_USART1_TX},
{STM32_PIN_PB7, STM32L0_PINMUX_FUNC_PB7_USART1_RX},
#endif /* CONFIG_UART_STM32_PORT_1 */
#ifdef CONFIG_UART_STM32_PORT_2
{STM32_PIN_PA2, STM32L0_PINMUX_FUNC_PA2_USART2_TX},
{STM32_PIN_PA3, STM32L0_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);