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https://github.com/AsahiLinux/u-boot
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73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
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* (C) Copyright 2003
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* Texas Instruments <www.ti.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <arm925t.h>
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ushort gpioreserved;
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void gpioreserve(ushort mask)
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{
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gpioreserved |= mask;
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}
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void gpiosetdir(ushort mask, ushort in)
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{
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*(ushort *)GPIO_DIR_CONTROL_REG = (*(ushort *)GPIO_DIR_CONTROL_REG & ~mask) | (in & mask);
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}
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void gpiosetout(ushort mask, ushort out)
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{
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ushort *r_ptr, r_val;
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r_ptr = (ushort *)GPIO_DATA_OUTPUT_REG; /* set pointer */
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r_val = *r_ptr & ~mask; /* get previous val, clear bits we want to change */
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r_val |= (out & mask); /* set specified bits in value + plus origional ones */
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*r_ptr = r_val; /* write it out */
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/*
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* gcc screwed this one up :(.
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*
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* *(ushort *)GPIO_DATA_OUTPUT_REG = (*(ushort *)GPIO_DATA_OUTPUT_REG & ~mask) | (out & mask);
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*/
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}
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void gpioinit(void)
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{
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}
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#define MIF_CONFIG_REG 0xFFFECC0C
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#define FLASH_GLOBAL_CTRL_NWP 1
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void archflashwp (void *archdata, int wp)
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{
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ulong *fgc = (ulong *) MIF_CONFIG_REG;
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if (wp == 1)
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*fgc &= ~FLASH_GLOBAL_CTRL_NWP;
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else
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*fgc |= FLASH_GLOBAL_CTRL_NWP;
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}
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