Move MMCONF resource into the domain for fam10 for the resource allocator.
[coreboot.git] / src / southbridge / intel / i82371eb / i82371eb_ide.c
1 /*
2  * This file is part of the coreboot project.
3  *
4  * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de>
5  *
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; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
19  */
20
21 /* TODO: Check if this really works for all of the southbridges. */
22
23 #include <stdint.h>
24 #include <console/console.h>
25 #include <device/device.h>
26 #include <device/pci.h>
27 #include <device/pci_ids.h>
28 #include "i82371eb.h"
29
30 /**
31  * Initialize the IDE controller.
32  *
33  * Depending on the configuration variables 'ide0_enable' and 'ide1_enable'
34  * enable or disable the primary and secondary IDE interface, respectively.
35  *
36  * Depending on the configuration variable 'ide_legacy_enable' enable or
37  * disable access to the legacy IDE ports and the PCI Bus Master IDE I/O
38  * registers (this is required for e.g. FILO).
39  *
40  * @param dev The device to use.
41  */
42 static void ide_init_enable(struct device *dev)
43 {
44         u16 reg16;
45         struct southbridge_intel_i82371eb_config *conf = dev->chip_info;
46
47         /* Enable/disable the primary IDE interface. */
48         reg16 = pci_read_config16(dev, IDETIM_PRI);
49         reg16 = ONOFF(conf->ide0_enable, reg16, IDE_DECODE_ENABLE);
50         pci_write_config16(dev, IDETIM_PRI, reg16);
51         printk(BIOS_DEBUG, "IDE: %s IDE interface: %s\n", "Primary",
52                      conf->ide0_enable ? "on" : "off");
53
54         /* Enable/disable the secondary IDE interface. */
55         reg16 = pci_read_config16(dev, IDETIM_SEC);
56         reg16 = ONOFF(conf->ide1_enable, reg16, IDE_DECODE_ENABLE);
57         pci_write_config16(dev, IDETIM_SEC, reg16);
58         printk(BIOS_DEBUG, "IDE: %s IDE interface: %s\n", "Secondary",
59                      conf->ide1_enable ? "on" : "off");
60
61         /* Enable access to the legacy IDE ports (both primary and secondary),
62          * and the PCI Bus Master IDE I/O registers.
63          * Only do this if at least one IDE interface is enabled.
64          */
65         if (conf->ide0_enable || conf->ide1_enable) {
66                 reg16 = pci_read_config16(dev, PCI_COMMAND);
67                 reg16 = ONOFF(conf->ide_legacy_enable, reg16,
68                               (PCI_COMMAND_IO | PCI_COMMAND_MASTER));
69                 pci_write_config16(dev, PCI_COMMAND, reg16);
70                 printk(BIOS_DEBUG, "IDE: Access to legacy IDE ports: %s\n",
71                              conf->ide_legacy_enable ? "on" : "off");
72         }
73 }
74
75 /**
76  * Initialize the Ultra DMA/33 support of the IDE controller.
77  *
78  * Depending on the configuration variables 'ide0_drive0_udma33_enable',
79  * 'ide0_drive1_udma33_enable', 'ide1_drive0_udma33_enable', and
80  * 'ide1_drive1_udma33_enable' enable or disable Ultra DMA/33 support for
81  * the respective IDE controller and drive.
82  *
83  * Only do that if the respective controller is actually enabled, of course.
84  *
85  * @param dev The device to use.
86  */
87 static void ide_init_udma33(struct device *dev)
88 {
89         u8 reg8;
90         struct southbridge_intel_i82371eb_config *conf = dev->chip_info;
91
92         /* Enable/disable UDMA/33 operation (primary IDE interface). */
93         if (conf->ide0_enable) {
94                 reg8 = pci_read_config8(dev, UDMACTL);
95                 reg8 = ONOFF(conf->ide0_drive0_udma33_enable, reg8, PSDE0);
96                 reg8 = ONOFF(conf->ide0_drive1_udma33_enable, reg8, PSDE1);
97                 pci_write_config8(dev, UDMACTL, reg8);
98
99                 printk(BIOS_DEBUG, "IDE: %s, drive %d: UDMA/33: %s\n",
100                              "Primary IDE interface", 0,
101                              conf->ide0_drive0_udma33_enable ? "on" : "off");
102                 printk(BIOS_DEBUG, "IDE: %s, drive %d: UDMA/33: %s\n",
103                              "Primary IDE interface", 1,
104                              conf->ide0_drive1_udma33_enable ? "on" : "off");
105         }
106
107         /* Enable/disable Ultra DMA/33 operation (secondary IDE interface). */
108         if (conf->ide1_enable) {
109                 reg8 = pci_read_config8(dev, UDMACTL);
110                 reg8 = ONOFF(conf->ide1_drive0_udma33_enable, reg8, SSDE0);
111                 reg8 = ONOFF(conf->ide1_drive1_udma33_enable, reg8, SSDE1);
112                 pci_write_config8(dev, UDMACTL, reg8);
113
114                 printk(BIOS_DEBUG, "IDE: %s, drive %d: UDMA/33: %s\n",
115                              "Secondary IDE interface", 0,
116                              conf->ide1_drive0_udma33_enable ? "on" : "off");
117                 printk(BIOS_DEBUG, "IDE: %s, drive %d: UDMA/33: %s\n",
118                              "Secondary IDE interface", 1,
119                              conf->ide1_drive1_udma33_enable ? "on" : "off");
120         }
121 }
122
123 /**
124  * IDE init for the Intel 82371FB/SB IDE controller.
125  *
126  * These devices do not support UDMA/33, so don't attempt to enable it.
127  *
128  * @param dev The device to use.
129  */
130 static void ide_init_i82371fb_sb(struct device *dev)
131 {
132         ide_init_enable(dev);
133 }
134
135 /**
136  * IDE init for the Intel 82371AB/EB/MB IDE controller.
137  *
138  * @param dev The device to use.
139  */
140 static void ide_init_i82371ab_eb_mb(struct device *dev)
141 {
142         ide_init_enable(dev);
143         ide_init_udma33(dev);
144 }
145
146 /* Intel 82371FB/SB */
147 static const struct device_operations ide_ops_fb_sb = {
148         .read_resources         = pci_dev_read_resources,
149         .set_resources          = pci_dev_set_resources,
150         .enable_resources       = pci_dev_enable_resources,
151         .init                   = ide_init_i82371fb_sb,
152         .scan_bus               = 0,
153         .enable                 = 0,
154         .ops_pci                = 0, /* No subsystem IDs on 82371XX! */
155 };
156
157 /* Intel 82371AB/EB/MB */
158 static const struct device_operations ide_ops_ab_eb_mb = {
159         .read_resources         = pci_dev_read_resources,
160         .set_resources          = pci_dev_set_resources,
161         .enable_resources       = pci_dev_enable_resources,
162         .init                   = ide_init_i82371ab_eb_mb,
163         .scan_bus               = 0,
164         .enable                 = 0,
165         .ops_pci                = 0, /* No subsystem IDs on 82371XX! */
166 };
167
168 /* Intel 82371FB (PIIX) */
169 static const struct pci_driver ide_driver_fb __pci_driver = {
170         .ops    = &ide_ops_fb_sb,
171         .vendor = PCI_VENDOR_ID_INTEL,
172         .device = PCI_DEVICE_ID_INTEL_82371FB_IDE,
173 };
174
175 /* Intel 82371SB (PIIX3) */
176 static const struct pci_driver ide_driver_sb __pci_driver = {
177         .ops    = &ide_ops_fb_sb,
178         .vendor = PCI_VENDOR_ID_INTEL,
179         .device = PCI_DEVICE_ID_INTEL_82371SB_IDE,
180 };
181
182 /* Intel 82371MX (MPIIX) */
183 static const struct pci_driver ide_driver_mx __pci_driver = {
184         .ops    = &ide_ops_fb_sb,
185         .vendor = PCI_VENDOR_ID_INTEL,
186         .device = PCI_DEVICE_ID_INTEL_82371MX_ISA_IDE,
187 };
188
189 /* Intel 82437MX (part of the 430MX chipset) */
190 static const struct pci_driver ide_driver_82437mx __pci_driver = {
191         .ops    = &ide_ops_fb_sb,
192         .vendor = PCI_VENDOR_ID_INTEL,
193         .device = PCI_DEVICE_ID_INTEL_82437MX_ISA_IDE,
194 };
195
196 /* Intel 82371AB/EB/MB */
197 static const struct pci_driver ide_driver_ab_eb_mb __pci_driver = {
198         .ops    = &ide_ops_ab_eb_mb,
199         .vendor = PCI_VENDOR_ID_INTEL,
200         .device = PCI_DEVICE_ID_INTEL_82371AB_IDE,
201 };