94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
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/***********************************************************************
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* arch/arm/src/arm/lpc2378/lpc23xx_head.S
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*
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* Copyright (C) 2010 Rommel Marcelo. All rights reserved.
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* Author: Rommel Marcelo
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*
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* This file is part of the NuttX RTOS:
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*
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* Copyright (C) 2010 Gregory Nutt. All rights reserved.
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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***********************************************************************/
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/***********************************************************************
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* Included files
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***********************************************************************/
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#include "up_arch.h"
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#include <sys/types.h>
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#include "lpc23xx_scb.h"
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#include "lpc23xx_pinsel.h"
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#include "lpc23xx_uart.h"
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#include "lpc23xx_gpio.h"
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/***********************************************************************
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* Definitions
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***********************************************************************/
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/******************************************************************************
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* Name: IO_Init()
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*
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* Descriptions: Initialize the target board before running the main()
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*
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******************************************************************************/
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void IO_Init( void )
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{
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uint32_t regval;
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/* Reset all GPIO pins to default */
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pinsel_putreg(0, PINSEL0_OFFSET);
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pinsel_putreg(0, PINSEL1_OFFSET);
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pinsel_putreg(0, PINSEL2_OFFSET);
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pinsel_putreg(0, PINSEL3_OFFSET);
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pinsel_putreg(0, PINSEL4_OFFSET);
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pinsel_putreg(0, PINSEL5_OFFSET);
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pinsel_putreg(0, PINSEL6_OFFSET);
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pinsel_putreg(0, PINSEL7_OFFSET);
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pinsel_putreg(0, PINSEL8_OFFSET);
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pinsel_putreg(0, PINSEL9_OFFSET);
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pinsel_putreg(0, PINSEL10_OFFSET);
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/*
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regval = scb_getreg(SCB_PCONP_OFFSET) & \
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~(PCSDC | PCUART1 | PCI2C0 | PCSSP1 | PCEMC | );
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scb_getreg( regval, SCB_PCONP_OFFSET );
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*/
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/* Turn off all peripheral power */
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scb_putreg( 0, SCB_PCONP_OFFSET );
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/* Turn on UART0/2 / Timer0 */
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//~ regval = PCUART0 | PCUART2 | PCTIM0 | PCRTC ;
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regval = PCUART0 | PCUART2 | PCTIM0 ;
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scb_putreg( regval , SCB_PCONP_OFFSET );
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/* Status LED P1.19 */
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dir_putreg8((1 << 3), FIO1DIR2_OFFSET);
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/* other io setup here */
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return;
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}
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