LXR uboot/board/esd/cpci750/ide.c

   1/*
   2 * (C) Copyright 2000
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 *
  23 */
  24/* ide.c - ide support functions */
  25
  26
  27#include <common.h>
  28#if defined(CONFIG_CMD_IDE)
  29#include <ata.h>
  30#include <ide.h>
  31#include <pci.h>
  32
  33extern ulong ide_bus_offset[CONFIG_SYS_IDE_MAXBUS];
  34int cpci_hd_type;
  35
  36int ata_device(int dev)
  37{
  38        int retval;
  39
  40        retval = (dev & 1) << 4;
  41        if (cpci_hd_type == 2)
  42                retval ^= 1 << 4;
  43        return retval;
  44}
  45
  46
  47int ide_preinit (void)
  48{
  49        int status;
  50        pci_dev_t devbusfn;
  51        int l;
  52
  53        status = 1;
  54        cpci_hd_type = 0;
  55        if (CPCI750_SLAVE_TEST != 0)
  56                return status;
  57        for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) {
  58                ide_bus_offset[l] = -ATA_STATUS;
  59        }
  60        devbusfn = pci_find_device (0x1103, 0x0004, 0);
  61        if (devbusfn != -1) {
  62                cpci_hd_type = 1;
  63        } else {
  64                devbusfn = pci_find_device (0x1095, 0x3114, 0);
  65                if (devbusfn != -1) {
  66                        cpci_hd_type = 2;
  67                }
  68        }
  69        if (devbusfn != -1) {
  70                ulong *ide_bus_offset_ptr;
  71
  72                status = 0;
  73
  74                ide_bus_offset_ptr = &ide_bus_offset[0];
  75                pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
  76                                       (u32 *)ide_bus_offset_ptr);
  77                ide_bus_offset[0] &= 0xfffffffe;
  78                ide_bus_offset[0] += CONFIG_SYS_PCI0_IO_SPACE;
  79                ide_bus_offset_ptr = &ide_bus_offset[1];
  80                pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2,
  81                                       (u32 *)ide_bus_offset_ptr);
  82                ide_bus_offset[1] &= 0xfffffffe;
  83                ide_bus_offset[1] += CONFIG_SYS_PCI0_IO_SPACE;
  84        }
  85        return status;
  86}
  87
  88void ide_set_reset (int flag) {
  89        return;
  90}
  91
  92#endif /* of CONFIG_CMDS_IDE */
  93