forked from Imagelibrary/rtems
105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*
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* @ingroup RTEMSBSPsARMLPC176X
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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, 2012 embedded brains GmbH & Co. KG
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <bsp.h>
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#include <bsp/io.h>
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#include <bsp/irq.h>
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#include <bsp/dma.h>
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#include <bsp/bootcard.h>
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#include <bsp/timer.h>
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#include <bsp/irq-generic.h>
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#include <bsp/system-clocks.h>
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#include <bsp/linker-symbols.h>
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#include <bsp/common-types.h>
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#include <bsp/uart-output-char.h>
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#ifdef LPC176X_HEAP_EXTEND
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LINKER_SYMBOL( lpc176x_region_heap_0_begin );
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LINKER_SYMBOL( lpc176x_region_heap_0_size );
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LINKER_SYMBOL( lpc176x_region_heap_0_end );
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LINKER_SYMBOL( lpc176x_region_heap_1_begin );
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LINKER_SYMBOL( lpc176x_region_heap_1_size );
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LINKER_SYMBOL( lpc176x_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 LPC176X_HEAP_EXTEND
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_Heap_Extend( RTEMS_Malloc_Heap,
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lpc176x_region_heap_0_begin,
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(uintptr_t) lpc176x_region_heap_0_size,
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NULL );
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_Heap_Extend( RTEMS_Malloc_Heap,
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lpc176x_region_heap_1_begin,
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(uintptr_t) lpc176x_region_heap_1_size,
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NULL );
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#endif
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}
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/**
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* @brief Console initialization
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*/
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static void initialize_console( void )
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{
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#ifdef LPC176X_CONFIG_CONSOLE
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lpc176x_module_enable( LPC176X_MODULE_UART_0, LPC176X_MODULE_PCLK_DEFAULT );
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lpc176x_pin_select( LPC176X_PIN_UART_0_TXD, LPC176X_PIN_FUNCTION_01 );
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lpc176x_pin_select( LPC176X_PIN_UART_0_RXD, LPC176X_PIN_FUNCTION_01 );
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BSP_CONSOLE_UART_INIT( LPC176X_PCLK / 16 / LPC176X_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 console */
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initialize_console();
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/*Initialize timer*/
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lpc176x_timer_init( LPC176X_TIMER_1 );
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lpc176x_timer_start( LPC176X_TIMER_1 );
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/* Interrupts */
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bsp_interrupt_initialize();
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/* DMA */
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lpc176x_dma_initialize();
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heap_extend();
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}
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