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stroese771e05b2004-12-16 18:21:17 +00001/*
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>
Jon Loeliger77a31852007-07-10 10:39:10 -050028#if defined(CONFIG_CMD_IDE)
stroese771e05b2004-12-16 18:21:17 +000029#include <ata.h>
30#include <ide.h>
31#include <pci.h>
32
Reinhard Arlt2b224602011-11-10 08:51:57 +000033int cpci_hd_type;
34
35int ata_device(int dev)
36{
37 int retval;
38
39 retval = (dev & 1) << 4;
40 if (cpci_hd_type == 2)
41 retval ^= 1 << 4;
42 return retval;
43}
44
stroese771e05b2004-12-16 18:21:17 +000045
wdenkefe2a4d2004-12-16 21:44:03 +000046int ide_preinit (void)
47{
48 int status;
49 pci_dev_t devbusfn;
50 int l;
stroese771e05b2004-12-16 18:21:17 +000051
wdenkefe2a4d2004-12-16 21:44:03 +000052 status = 1;
Reinhard Arlt2b224602011-11-10 08:51:57 +000053 cpci_hd_type = 0;
Stefan Roese58f10462009-06-04 13:35:39 +020054 if (CPCI750_SLAVE_TEST != 0)
55 return status;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020056 for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) {
wdenkefe2a4d2004-12-16 21:44:03 +000057 ide_bus_offset[l] = -ATA_STATUS;
58 }
59 devbusfn = pci_find_device (0x1103, 0x0004, 0);
Reinhard Arlt2b224602011-11-10 08:51:57 +000060 if (devbusfn != -1) {
61 cpci_hd_type = 1;
62 } else {
Stefan Roese2d780742007-06-22 17:32:28 +020063 devbusfn = pci_find_device (0x1095, 0x3114, 0);
Reinhard Arlt2b224602011-11-10 08:51:57 +000064 if (devbusfn != -1) {
65 cpci_hd_type = 2;
66 }
67 }
wdenkefe2a4d2004-12-16 21:44:03 +000068 if (devbusfn != -1) {
Wolfgang Denk97138fc2009-09-11 11:15:31 +020069 ulong *ide_bus_offset_ptr;
70
wdenkefe2a4d2004-12-16 21:44:03 +000071 status = 0;
stroese771e05b2004-12-16 18:21:17 +000072
Wolfgang Denk97138fc2009-09-11 11:15:31 +020073 ide_bus_offset_ptr = &ide_bus_offset[0];
wdenkefe2a4d2004-12-16 21:44:03 +000074 pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
Wolfgang Denk97138fc2009-09-11 11:15:31 +020075 (u32 *)ide_bus_offset_ptr);
wdenkefe2a4d2004-12-16 21:44:03 +000076 ide_bus_offset[0] &= 0xfffffffe;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020077 ide_bus_offset[0] += CONFIG_SYS_PCI0_IO_SPACE;
Wolfgang Denk97138fc2009-09-11 11:15:31 +020078 ide_bus_offset_ptr = &ide_bus_offset[1];
wdenkefe2a4d2004-12-16 21:44:03 +000079 pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_2,
Wolfgang Denk97138fc2009-09-11 11:15:31 +020080 (u32 *)ide_bus_offset_ptr);
wdenkefe2a4d2004-12-16 21:44:03 +000081 ide_bus_offset[1] &= 0xfffffffe;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020082 ide_bus_offset[1] += CONFIG_SYS_PCI0_IO_SPACE;
wdenkefe2a4d2004-12-16 21:44:03 +000083 }
Stefan Roese58f10462009-06-04 13:35:39 +020084 return status;
wdenkefe2a4d2004-12-16 21:44:03 +000085}
stroese771e05b2004-12-16 18:21:17 +000086
wdenkefe2a4d2004-12-16 21:44:03 +000087void ide_set_reset (int flag) {
88 return;
89}
stroese771e05b2004-12-16 18:21:17 +000090
91#endif /* of CONFIG_CMDS_IDE */