source: SVN/rincon/u-boot/board/linkstation/ide.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 22 months ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 3.2 KB
Line 
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
29#ifdef CONFIG_CMD_IDE
30#include <ata.h>
31#include <ide.h>
32#include <pci.h>
33
34#define IT8212_PCI_CpuCONTROL           0x5e
35#define IT8212_PCI_PciModeCONTROL       0x50
36#define IT8212_PCI_IdeIoCONFIG          0x40
37#define IT8212_PCI_IdeBusSkewCONTROL    0x4c
38#define IT8212_PCI_IdeDrivingCURRENT    0x42
39
40extern ulong ide_bus_offset[CFG_IDE_MAXBUS];
41extern struct pci_controller hose;
42
43int ide_preinit (void)
44{
45        int status;
46        pci_dev_t devbusfn;
47        int l;
48
49        status = 1;
50        for (l = 0; l < CFG_IDE_MAXBUS; l++) {
51                ide_bus_offset[l] = -ATA_STATUS;
52        }
53        devbusfn = pci_find_device(PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, 0);
54        if (devbusfn == -1)
55                devbusfn = pci_find_device(PCI_VENDOR_ID_ITE,PCI_DEVICE_ID_ITE_8212,0);
56        if (devbusfn != -1) {
57                status = 0;
58
59                pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
60                                                           (u32 *) &ide_bus_offset[0]);
61                ide_bus_offset[0] &= 0xfffffffe;
62                ide_bus_offset[0] = pci_hose_bus_to_phys(&hose,
63                                                         ide_bus_offset[0] & 0xfffffffe,
64                                                         PCI_REGION_IO);
65                pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2,
66                                      (u32 *) &ide_bus_offset[1]);
67                ide_bus_offset[1] &= 0xfffffffe;
68                ide_bus_offset[1] = pci_hose_bus_to_phys(&hose,
69                                                         ide_bus_offset[1] & 0xfffffffe,
70                                                         PCI_REGION_IO);
71        }
72
73        if (pci_find_device (PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8212, 0) != -1) {
74                pci_write_config_byte(devbusfn, IT8212_PCI_CpuCONTROL, 0x01);
75                pci_write_config_byte(devbusfn, IT8212_PCI_PciModeCONTROL, 0x00);
76                pci_write_config_word(devbusfn, PCI_COMMAND, 0x0047);
77#ifdef CONFIG_IT8212_SECONDARY_ENABLE
78                pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0xA0F3);
79#else
80                pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0x8031);
81#endif
82                pci_write_config_dword(devbusfn, IT8212_PCI_IdeBusSkewCONTROL, 0x02040204);
83/* __LS_COMMENT__ BUFFALO changed 2004.11.10  changed for EMI */
84                pci_write_config_byte(devbusfn, IT8212_PCI_IdeDrivingCURRENT, 0x36); /* 10mA */
85/*              pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x09); */ /* 4mA */
86/*              pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x12); */ /* 6mA */
87/*              pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x24); */ /* 6mA,2mA */
88/*              pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x2D); */ /* 8mA,4mA */
89                pci_write_config_byte(devbusfn, PCI_LATENCY_TIMER, 0x00);
90        }
91
92        return (status);
93}
94
95void ide_set_reset (int flag) {
96        return;
97}
98
99#endif /* CONFIG_CMD_IDE */
Note: See TracBrowser for help on using the repository browser.