forked from Imagelibrary/rtems
97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
/**
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* @file
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*
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* @ingroup RTEMSBSPsARMLPC24XX
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*
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* @brief Startup code.
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*/
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/*
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* Copyright (c) 2008-2014 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#include <bsp.h>
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#include <bsp/bootcard.h>
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#include <bsp/dma.h>
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#include <bsp/io.h>
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#include <bsp/irq-generic.h>
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#include <bsp/irq.h>
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#include <bsp/linker-symbols.h>
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#include <bsp/lpc24xx.h>
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#include <bsp/system-clocks.h>
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#include <bsp/uart-output-char.h>
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#ifdef LPC24XX_HEAP_EXTEND
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LINKER_SYMBOL(lpc24xx_region_heap_0_begin);
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LINKER_SYMBOL(lpc24xx_region_heap_0_size);
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LINKER_SYMBOL(lpc24xx_region_heap_0_end);
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LINKER_SYMBOL(lpc24xx_region_heap_1_begin);
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LINKER_SYMBOL(lpc24xx_region_heap_1_size);
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LINKER_SYMBOL(lpc24xx_region_heap_1_end);
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extern Heap_Control *RTEMS_Malloc_Heap;
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#endif
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static void heap_extend(void)
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{
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#ifdef LPC24XX_HEAP_EXTEND
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_Heap_Extend(
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RTEMS_Malloc_Heap,
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lpc24xx_region_heap_0_begin,
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(uintptr_t) lpc24xx_region_heap_0_size,
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0
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);
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_Heap_Extend(
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RTEMS_Malloc_Heap,
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lpc24xx_region_heap_1_begin,
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(uintptr_t) lpc24xx_region_heap_1_size,
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0
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);
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#endif
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}
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static void initialize_console(void)
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{
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#ifdef LPC24XX_CONFIG_CONSOLE
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static const lpc24xx_pin_range pins [] = {
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LPC24XX_PIN_UART_0_TXD,
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LPC24XX_PIN_UART_0_RXD,
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LPC24XX_PIN_TERMINAL
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};
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lpc24xx_module_enable(LPC24XX_MODULE_UART_0, LPC24XX_MODULE_PCLK_DEFAULT);
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lpc24xx_pin_config(&pins [0], LPC24XX_PIN_SET_FUNCTION);
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BSP_CONSOLE_UART_INIT(LPC24XX_PCLK / 16 / LPC24XX_UART_BAUD);
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#endif
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}
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void bsp_start(void)
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{
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/* Initialize Timer 1 */
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lpc24xx_module_enable(LPC24XX_MODULE_TIMER_1, LPC24XX_MODULE_PCLK_DEFAULT);
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/* Initialize standard timer */
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lpc24xx_timer_initialize();
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initialize_console();
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/* Interrupts */
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bsp_interrupt_initialize();
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/* DMA */
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lpc24xx_dma_initialize();
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heap_extend();
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}
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