board/esd/cpci750/ide.c

/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * 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
 *
 */
/* ide.c - ide support functions */


#include <common.h>
#ifdef CFG_CMD_IDE
#include <ata.h>
#include <ide.h>
#include <pci.h>

extern ulong ide_bus_offset[CFG_IDE_MAXBUS];

int ide_preinit
    (
    void
    )
    {
    int            status;
    pci_dev_t      devbusfn;
    int            l;

    status = 1;
    for(l=0;l<CFG_IDE_MAXBUS;l++)
        {
        ide_bus_offset[l] = -ATA_STATUS;
        }
    devbusfn = pci_find_device(0x1103, 0x0004, 0);
    if (devbusfn != -1)
        {
        status = 0;

        pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_0, (u32 *)&ide_bus_offset[0]);
	ide_bus_offset[0] &= 0xfffffffe;
        ide_bus_offset[0] += CFG_PCI0_IO_SPACE;
        pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2, (u32 *)&ide_bus_offset[1]);
	ide_bus_offset[1] &= 0xfffffffe;
        ide_bus_offset[1] += CFG_PCI0_IO_SPACE;
        }
    return(status);
    }

void ide_set_reset
    (
    int flag
    )
    {
    return;
    }

#endif /* of CONFIG_CMDS_IDE */