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54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/*
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* Copyright (C) 2018 Kaspar Schleiser <kaspar@schleiser.de>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup boards_common
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* @{
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*
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* @file
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* @brief Common implementations for Atmega boards
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*
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* @author Kaspar Schleiser <kaspar@schleiser.de>
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*
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* @}
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*/
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#include "board.h"
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#include "cpu.h"
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#include "irq.h"
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#include "periph/gpio.h"
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#ifndef CPU_ATMEGA_CLK_SCALE_INIT
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#define CPU_ATMEGA_CLK_SCALE_INIT CPU_ATMEGA_CLK_SCALE_DIV1
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#endif
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void led_init(void);
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/*
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* Add an empty led_init() as fall back.
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* If at link time another implementation of led_init() not marked as weak
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* (a.k.a. a strong symbol) is present, it will be linked in instead.
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*/
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void __attribute__((weak)) led_init(void) {}
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void board_init(void)
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{
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#ifdef CPU_ATMEGA32U4
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/* disable usb interrupt on Atmega32U4 */
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PRR1 |= 1<<PRUSB;
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#endif
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atmega_set_prescaler(CPU_ATMEGA_CLK_SCALE_INIT);
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cpu_init();
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#ifdef LED0_ON
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led_init();
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#endif
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irq_enable();
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}
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