2 * This file is part of the coreboot project.
4 * Copyright (C) 2009 One Laptop per Child, Association, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <device/device.h>
21 #include <device/pci.h>
22 #include <device/pci_ops.h>
23 #include <device/pci_ids.h>
24 #include <console/console.h>
29 static const idedevicepcitable[16 * 12] = {
31 /*0x02, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x00, 0xA8, 0xA8, 0xF0, 0x00, 0x00, 0xB6,
32 0x00, 0x00, 0x01, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
33 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
34 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
35 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
36 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
37 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
38 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
39 0x00, 0xC2, 0xF9, 0x01, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
40 0x00, 0x00, 0x00, 0x00, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
41 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
42 0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
45 0x02, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x00, 0x99, 0x20, 0xf0, 0x00, 0x00, 0x20,
46 0x00, 0x00, 0x17, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
47 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
48 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
49 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
50 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
51 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
52 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
53 0x00, 0xc2, 0x09, 0x01, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
54 0x00, 0x00, 0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
55 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
56 0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
57 //legacybios xp pci value
58 /*0x02, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x00, 0xa8, 0x20, 0x00, 0x00, 0x00, 0xb6,
59 0x00, 0x00, 0x16, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
60 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
61 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
62 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
63 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
64 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
65 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
66 0x00, 0x02, 0x09, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
67 0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
68 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
69 0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
71 //rom legacybios on cn_8562b
73 0x03, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x00, 0x99, 0x20, 0x60, 0x00, 0x00, 0x20,
74 0x00, 0x00, 0x1E, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
75 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
76 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
77 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
78 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
79 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
80 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
81 0x00, 0x02, 0x09, 0x01, 0x18, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
82 0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
83 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
84 0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
86 //from egacybios on c7_8562b
87 /*0x03, 0x00, 0x00, 0x00, 0x00, 0x82, 0x00, 0x00, 0x00, 0x00, 0x5E, 0x20, 0x60, 0x00, 0x00, 0xB6,
88 0x00, 0x00, 0x1E, 0xF1, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
89 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
90 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
91 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
92 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
93 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
94 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x09, 0xC4, 0x06, 0x11, 0x09, 0xC4,
95 0x00, 0x02, 0x09, 0x01, 0x18, 0x0C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
96 0x00, 0x00, 0x00, 0x00, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
97 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
98 0x02, 0x01, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, */
101 static void ide_init(struct device *dev)
103 uint8_t enables, Rx89, RxC0;
105 struct ATA_REG_INIT_TABLE *pEntry;
106 printk_info("ide_init\n");
109 /*these 3 lines help to keep interl back door for DID VID SUBID untouched */
110 u16 data16_1, data16_2;
111 data16_1 = pci_read_config16(dev, 0xba);
112 data16_2 = pci_read_config16(dev, 0xbe);
114 for (i = 0; i < (16 * 12); i++) {
115 pci_write_config8(dev, 0x40 + i, idedevicepcitable[i]);
117 //pci_write_config8(dev, 0x0d, 0x20);
118 data = pci_read_config8(dev, 0x0d);
121 pci_write_config8(dev, 0x0d, data);
123 //these 2 lines help to keep interl back door for DID VID SUBID untouched
124 pci_write_config16(dev, 0xba, data16_1);
125 pci_write_config16(dev, 0xbe, data16_2);
127 /* Force interrupts to use compat mode. */
128 pci_write_config8(dev, PCI_INTERRUPT_PIN, 0x0);
129 pci_write_config8(dev, PCI_INTERRUPT_LINE, 0xff);
134 struct southbridge_via_vt8237r_config *sb =
135 (struct southbridge_via_vt8237r_config *) dev->chip_info;
140 pci_write_config16(dev, 0x04, 0x0007);
142 enables = pci_read_config8(dev, IDE_CS) & ~0x3;
144 pci_write_config8(dev, IDE_CS, enables);
145 enables = pci_read_config8(dev, IDE_CS);
146 printk_debug("Enables in reg 0x40 read back as 0x%x\n", enables);
148 /* Enable only compatibility mode. */
149 enables = pci_read_config8(dev, IDE_CONF_II);
151 pci_write_config8(dev, IDE_CONF_II, enables);
152 enables = pci_read_config8(dev, IDE_CONF_II);
153 printk_debug("Enables in reg 0x42 read back as 0x%x\n", enables);
155 /* Enable prefetch buffers. */
156 enables = pci_read_config8(dev, IDE_CONF_I);
158 pci_write_config8(dev, IDE_CONF_I, enables);
160 /* Flush FIFOs at half. */
161 enables = pci_read_config8(dev, IDE_CONF_FIFO);
163 enables |= (1 << 2) | (1 << 0);
164 pci_write_config8(dev, IDE_CONF_FIFO, enables);
166 /* PIO read prefetch counter, Bus Master IDE Status Reg. Read Retry. */
167 enables = pci_read_config8(dev, IDE_MISC_I);
169 enables |= (1 << 4) | (1 << 3);
170 pci_write_config8(dev, IDE_MISC_I, enables);
172 /* Use memory read multiple, Memory-Write-and-Invalidate. */
173 enables = pci_read_config8(dev, IDE_MISC_II);
174 enables |= (1 << 2) | (1 << 3);
175 pci_write_config8(dev, IDE_MISC_II, enables);
177 /* Force interrupts to use compat mode. */
178 pci_write_config8(dev, PCI_INTERRUPT_PIN, 0x0);
179 pci_write_config8(dev, PCI_INTERRUPT_LINE, 0xff);
182 cablesel = pci_read_config32(dev, IDE_UDMA);
183 cablesel &= ~((1 << 28) | (1 << 20) | (1 << 12) | (1 << 4));
184 cablesel |= (sb->ide0_80pin_cable << 28) |
185 (sb->ide0_80pin_cable << 20) |
186 (sb->ide1_80pin_cable << 12) | (sb->ide1_80pin_cable << 4);
187 pci_write_config32(dev, IDE_UDMA, cablesel);
191 static struct device_operations ide_ops = {
192 .read_resources = pci_dev_read_resources,
193 .set_resources = pci_dev_set_resources,
194 .enable_resources = pci_dev_enable_resources,
200 static struct pci_driver via_ide_driver __pci_driver = {
202 .vendor = PCI_VENDOR_ID_VIA,
203 .device = PCI_DEVICE_ID_VIA_VX855_IDE,