uboot-vybrid_public/cpu/arm925t/omap925.c

/*
 * (C) Copyright 2003
 * Texas Instruments <www.ti.com>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <command.h>
#include <arm925t.h>

ushort gpioreserved;

void gpioreserve(ushort mask)
{
	gpioreserved |= mask;
}

void gpiosetdir(ushort mask, ushort in)
{
	*(ushort *)GPIO_DIR_CONTROL_REG = (*(ushort *)GPIO_DIR_CONTROL_REG & ~mask) | (in & mask);
}


void gpiosetout(ushort mask, ushort out)
{
	ushort *r_ptr, r_val;
	
	r_ptr = (ushort *)GPIO_DATA_OUTPUT_REG;	/* set pointer */
	r_val = *r_ptr & ~mask;		/* get previous val, clear bits we want to change */
	r_val |= (out & mask);		/* set specified bits in value + plus origional ones */
	*r_ptr = r_val;			/* write it out */	
/* 
 * gcc screwed this one up :(.
 * 
 * *(ushort *)GPIO_DATA_OUTPUT_REG = (*(ushort *)GPIO_DATA_OUTPUT_REG & ~mask) | (out & mask);
 */

}

void gpioinit(void)
{
}


#define MIF_CONFIG_REG 0xFFFECC0C
#define FLASH_GLOBAL_CTRL_NWP 1

void archflashwp (void *archdata, int wp)
{
	ulong *fgc = (ulong *) MIF_CONFIG_REG;

	if (wp == 1)
		*fgc &= ~FLASH_GLOBAL_CTRL_NWP;
	else
		*fgc |= FLASH_GLOBAL_CTRL_NWP;
}