blob: 541c958fca20aa51a9d4acd83e0ce0d127cb43f6 [file] [log] [blame]
Guennadi Liakhovetski61525f22008-03-31 01:32:15 +02001/*
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
Guennadi Liakhovetski61525f22008-03-31 01:32:15 +020040extern struct pci_controller hose;
41
42int ide_preinit (void)
43{
44 int status;
45 pci_dev_t devbusfn;
46 int l;
47
48 status = 1;
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020049 for (l = 0; l < CONFIG_SYS_IDE_MAXBUS; l++) {
Guennadi Liakhovetski61525f22008-03-31 01:32:15 +020050 ide_bus_offset[l] = -ATA_STATUS;
51 }
52 devbusfn = pci_find_device(PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, 0);
53 if (devbusfn == -1)
54 devbusfn = pci_find_device(PCI_VENDOR_ID_ITE,PCI_DEVICE_ID_ITE_8212,0);
55 if (devbusfn != -1) {
Wolfgang Denk184a3a22009-09-15 00:26:02 +020056 u32 ide_bus_offset32;
57
Guennadi Liakhovetski61525f22008-03-31 01:32:15 +020058 status = 0;
59
60 pci_read_config_dword (devbusfn, PCI_BASE_ADDRESS_0,
Wolfgang Denk184a3a22009-09-15 00:26:02 +020061 &ide_bus_offset32);
62 ide_bus_offset[0] = ide_bus_offset32 & 0xfffffffe;
Guennadi Liakhovetski61525f22008-03-31 01:32:15 +020063 ide_bus_offset[0] = pci_hose_bus_to_phys(&hose,
Wolfgang Denk53862da2011-11-07 22:43:37 +010064 ide_bus_offset[0] & 0xfffffffe,
65 PCI_REGION_IO);
66 if (CONFIG_SYS_IDE_MAXBUS > 1) {
67 pci_read_config_dword(devbusfn, PCI_BASE_ADDRESS_2,
68 (u32 *) &ide_bus_offset[1]);
69 ide_bus_offset[1] &= 0xfffffffe;
70 ide_bus_offset[1] = pci_hose_bus_to_phys(&hose,
71 ide_bus_offset[1] & 0xfffffffe,
72 PCI_REGION_IO);
73 }
Guennadi Liakhovetski61525f22008-03-31 01:32:15 +020074 }
75
76 if (pci_find_device (PCI_VENDOR_ID_ITE, PCI_DEVICE_ID_ITE_8212, 0) != -1) {
77 pci_write_config_byte(devbusfn, IT8212_PCI_CpuCONTROL, 0x01);
78 pci_write_config_byte(devbusfn, IT8212_PCI_PciModeCONTROL, 0x00);
79 pci_write_config_word(devbusfn, PCI_COMMAND, 0x0047);
80#ifdef CONFIG_IT8212_SECONDARY_ENABLE
81 pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0xA0F3);
82#else
83 pci_write_config_word(devbusfn, IT8212_PCI_IdeIoCONFIG, 0x8031);
84#endif
85 pci_write_config_dword(devbusfn, IT8212_PCI_IdeBusSkewCONTROL, 0x02040204);
86/* __LS_COMMENT__ BUFFALO changed 2004.11.10 changed for EMI */
Wolfgang Denk268a8042008-04-18 10:53:41 -070087 pci_write_config_byte(devbusfn, IT8212_PCI_IdeDrivingCURRENT, 0x36); /* 10mA */
88/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x09); */ /* 4mA */
89/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x12); */ /* 6mA */
90/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x24); */ /* 6mA,2mA */
91/* pci_write_config_byte(dev, IT8212_PCI_IdeDrivingCURRENT, 0x2D); */ /* 8mA,4mA */
92 pci_write_config_byte(devbusfn, PCI_LATENCY_TIMER, 0x00);
Guennadi Liakhovetski61525f22008-03-31 01:32:15 +020093 }
94
95 return (status);
96}
97
98void ide_set_reset (int flag) {
99 return;
100}
101
102#endif /* CONFIG_CMD_IDE */