1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 coresystems GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include "i82801gx.h"
typedef struct southbridge_intel_i82801gx_config config_t;
static void sata_init(struct device *dev)
{
u32 reg32;
u16 reg16;
/* Get the chip configuration */
config_t *config = dev->chip_info;
printk(BIOS_DEBUG, "i82801gx_sata: initializing...\n");
if (config == NULL) {
printk(BIOS_ERR, "i82801gx_sata: error: device not in devicetree.cb!\n");
return;
}
/* SATA configuration */
/* Enable BARs */
pci_write_config16(dev, PCI_COMMAND, 0x0007);
if (config->ide_legacy_combined) {
printk(BIOS_DEBUG, "SATA controller in combined mode.\n");
/* No AHCI: clear AHCI base */
pci_write_config32(dev, 0x24, 0x00000000);
/* And without AHCI BAR no memory decoding */
reg16 = pci_read_config16(dev, PCI_COMMAND);
reg16 &= ~PCI_COMMAND_MEMORY;
pci_write_config16(dev, PCI_COMMAND, reg16);
pci_write_config8(dev, 0x09, 0x80);
/* Set timings */
pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS);
pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
IDE_PPE0 | IDE_IE0 | IDE_TIME0);
/* Sync DMA */
pci_write_config16(dev, IDE_SDMA_CNT, IDE_SSDE0);
pci_write_config16(dev, IDE_SDMA_TIM, 0x0200);
/* Set IDE I/O Configuration */
reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
pci_write_config32(dev, IDE_CONFIG, reg32);
/* Combine IDE - SATA configuration */
pci_write_config8(dev, 0x90, 0x02);
/* Port 0 & 1 enable */
pci_write_config8(dev, 0x92, 0x0f);
/* SATA Initialization register */
pci_write_config32(dev, 0x94, 0x5a000180);
} else if(config->sata_ahci) {
printk(BIOS_DEBUG, "SATA controller in AHCI mode.\n");
/* Allow both Legacy and Native mode */
pci_write_config8(dev, 0x09, 0x8f);
/* Set Interrupt Line */
/* Interrupt Pin is set by D31IP.PIP */
pci_write_config8(dev, INTR_LN, 0x0a);
/* Set timings */
pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
IDE_PPE0 | IDE_IE0 | IDE_TIME0);
pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
IDE_ISP_5_CLOCKS | IDE_RCT_4_CLOCKS);
/* Sync DMA */
pci_write_config16(dev, IDE_SDMA_CNT, IDE_PSDE0);
pci_write_config16(dev, IDE_SDMA_TIM, 0x0001);
/* Set IDE I/O Configuration */
reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
pci_write_config32(dev, IDE_CONFIG, reg32);
/* Set Sata Controller Mode. */
pci_write_config8(dev, 0x90, 0x40); // 40=AHCI
/* Port 0 & 1 enable */
pci_write_config8(dev, 0x92, 0x0f);
/* SATA Initialization register */
pci_write_config32(dev, 0x94, 0x1a000180);
} else {
printk(BIOS_DEBUG, "SATA controller in plain mode.\n");
/* Set Sata Controller Mode. No Mapping(?) */
pci_write_config8(dev, 0x90, 0x00);
/* No AHCI: clear AHCI base */
pci_write_config32(dev, 0x24, 0x00000000);
/* And without AHCI BAR no memory decoding */
reg16 = pci_read_config16(dev, PCI_COMMAND);
reg16 &= ~PCI_COMMAND_MEMORY;
pci_write_config16(dev, PCI_COMMAND, reg16);
/* Native mode capable on both primary and secondary (0xa)
* or'ed with enabled (0x50) = 0xf
*/
pci_write_config8(dev, 0x09, 0x8f);
/* Set Interrupt Line */
/* Interrupt Pin is set by D31IP.PIP */
pci_write_config8(dev, INTR_LN, 0xff);
/* Set timings */
pci_write_config16(dev, IDE_TIM_PRI, IDE_DECODE_ENABLE |
IDE_ISP_3_CLOCKS | IDE_RCT_1_CLOCKS |
IDE_PPE0 | IDE_IE0 | IDE_TIME0);
pci_write_config16(dev, IDE_TIM_SEC, IDE_DECODE_ENABLE |
IDE_SITRE | IDE_ISP_3_CLOCKS |
IDE_RCT_1_CLOCKS | IDE_IE0 | IDE_TIME0);
/* Sync DMA */
pci_write_config16(dev, IDE_SDMA_CNT, IDE_SSDE0 | IDE_PSDE0);
pci_write_config16(dev, IDE_SDMA_TIM, 0x0201);
/* Set IDE I/O Configuration */
reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0;
pci_write_config32(dev, IDE_CONFIG, reg32);
/* Port 0 & 1 enable XXX */
pci_write_config8(dev, 0x92, 0x15);
/* SATA Initialization register */
pci_write_config32(dev, 0x94, 0x1a000180);
}
/* All configurations need this SATA initialization sequence */
pci_write_config8(dev, 0xa0, 0x40);
pci_write_config8(dev, 0xa6, 0x22);
pci_write_config8(dev, 0xa0, 0x78);
pci_write_config8(dev, 0xa6, 0x22);
pci_write_config8(dev, 0xa0, 0x88);
reg32 = pci_read_config32(dev, 0xa4);
reg32 &= 0xc0c0c0c0;
reg32 |= 0x1b1b1212;
pci_write_config32(dev, 0xa4, reg32);
pci_write_config8(dev, 0xa0, 0x8c);
reg32 = pci_read_config32(dev, 0xa4);
reg32 &= 0xc0c0ff00;
reg32 |= 0x121200aa;
pci_write_config32(dev, 0xa4, reg32);
pci_write_config8(dev, 0xa0, 0x00);
pci_write_config8(dev, PCI_INTERRUPT_LINE, 0);
/* Sata Initialization Register */
reg32 = pci_read_config32(dev, 0x94);
reg32 |= (1 << 30); // due to some bug
pci_write_config32(dev, 0x94, reg32);
}
static void sata_set_subsystem(device_t dev, unsigned vendor, unsigned device)
{
if (!vendor || !device) {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
pci_read_config32(dev, PCI_VENDOR_ID));
} else {
pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
((device & 0xffff) << 16) | (vendor & 0xffff));
}
}
static struct pci_operations sata_pci_ops = {
.set_subsystem = sata_set_subsystem,
};
static struct device_operations sata_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = sata_init,
.scan_bus = 0,
.enable = i82801gx_enable,
.ops_pci = &sata_pci_ops,
};
/* Desktop Non-AHCI and Non-RAID Mode */
/* 82801GB/GR/GDH (ICH7/ICH7R/ICH7DH) */
static const struct pci_driver i82801gx_sata_normal_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x27c0,
};
/* Mobile Non-AHCI and Non-RAID Mode */
/* 82801GBM/GHM (ICH7-M/ICH7-M DH) */
static const struct pci_driver i82801gx_sata_mobile_normal_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x27c4,
};
/* NOTE: Any of the below are not properly supported yet. */
/* Desktop AHCI Mode */
/* 82801GB/GR/GDH (ICH7/ICH7R/ICH7DH) */
static const struct pci_driver i82801gx_sata_ahci_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x27c1,
};
/* Desktop RAID mode */
/* 82801GB/GR/GDH (ICH7/ICH7R/ICH7DH) */
static const struct pci_driver i82801gx_sata_raid_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x27c3,
};
/* Mobile AHCI Mode */
/* 82801GBM/GHM (ICH7-M/ICH7-M DH) */
static const struct pci_driver i82801gx_sata_mobile_ahci_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x27c5,
};
/* ICH7M DH Raid Mode */
/* 82801GHM (ICH7-M DH) */
static const struct pci_driver i82801gx_sata_ich7dh_raid_driver __pci_driver = {
.ops = &sata_ops,
.vendor = PCI_VENDOR_ID_INTEL,
.device = 0x27c6,
};
|
