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