ide: delete filenames/versions from comments
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / ide / pci / aec62xx.c
CommitLineData
1da177e4 1/*
1da177e4 2 * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
826a1b65 3 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
1da177e4
LT
4 *
5 */
6
7#include <linux/module.h>
1da177e4
LT
8#include <linux/types.h>
9#include <linux/pci.h>
10#include <linux/delay.h>
11#include <linux/hdreg.h>
12#include <linux/ide.h>
13#include <linux/init.h>
14
15#include <asm/io.h>
16
17struct chipset_bus_clock_list_entry {
18 u8 xfer_speed;
19 u8 chipset_settings;
20 u8 ultra_settings;
21};
22
f201f504 23static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
1da177e4
LT
24 { XFER_UDMA_6, 0x31, 0x07 },
25 { XFER_UDMA_5, 0x31, 0x06 },
26 { XFER_UDMA_4, 0x31, 0x05 },
27 { XFER_UDMA_3, 0x31, 0x04 },
28 { XFER_UDMA_2, 0x31, 0x03 },
29 { XFER_UDMA_1, 0x31, 0x02 },
30 { XFER_UDMA_0, 0x31, 0x01 },
31
32 { XFER_MW_DMA_2, 0x31, 0x00 },
33 { XFER_MW_DMA_1, 0x31, 0x00 },
34 { XFER_MW_DMA_0, 0x0a, 0x00 },
35 { XFER_PIO_4, 0x31, 0x00 },
36 { XFER_PIO_3, 0x33, 0x00 },
37 { XFER_PIO_2, 0x08, 0x00 },
38 { XFER_PIO_1, 0x0a, 0x00 },
39 { XFER_PIO_0, 0x00, 0x00 },
40 { 0, 0x00, 0x00 }
41};
42
f201f504 43static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
1da177e4
LT
44 { XFER_UDMA_6, 0x41, 0x06 },
45 { XFER_UDMA_5, 0x41, 0x05 },
46 { XFER_UDMA_4, 0x41, 0x04 },
47 { XFER_UDMA_3, 0x41, 0x03 },
48 { XFER_UDMA_2, 0x41, 0x02 },
49 { XFER_UDMA_1, 0x41, 0x01 },
50 { XFER_UDMA_0, 0x41, 0x01 },
51
52 { XFER_MW_DMA_2, 0x41, 0x00 },
53 { XFER_MW_DMA_1, 0x42, 0x00 },
54 { XFER_MW_DMA_0, 0x7a, 0x00 },
55 { XFER_PIO_4, 0x41, 0x00 },
56 { XFER_PIO_3, 0x43, 0x00 },
57 { XFER_PIO_2, 0x78, 0x00 },
58 { XFER_PIO_1, 0x7a, 0x00 },
59 { XFER_PIO_0, 0x70, 0x00 },
60 { 0, 0x00, 0x00 }
61};
62
63#define BUSCLOCK(D) \
64 ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))
65
1da177e4
LT
66
67/*
68 * TO DO: active tuning and correction of cards without a bios.
69 */
70static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
71{
72 for ( ; chipset_table->xfer_speed ; chipset_table++)
73 if (chipset_table->xfer_speed == speed) {
74 return chipset_table->chipset_settings;
75 }
76 return chipset_table->chipset_settings;
77}
78
79static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
80{
81 for ( ; chipset_table->xfer_speed ; chipset_table++)
82 if (chipset_table->xfer_speed == speed) {
83 return chipset_table->ultra_settings;
84 }
85 return chipset_table->ultra_settings;
86}
87
88b2b32b 88static void aec6210_set_mode(ide_drive_t *drive, const u8 speed)
1da177e4
LT
89{
90 ide_hwif_t *hwif = HWIF(drive);
36501650 91 struct pci_dev *dev = to_pci_dev(hwif->dev);
1da177e4 92 u16 d_conf = 0;
1da177e4
LT
93 u8 ultra = 0, ultra_conf = 0;
94 u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
95 unsigned long flags;
96
97 local_irq_save(flags);
98 /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
99 pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
100 tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
101 d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
102 pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
103
104 tmp1 = 0x00;
105 tmp2 = 0x00;
106 pci_read_config_byte(dev, 0x54, &ultra);
107 tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
108 ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
109 tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
110 pci_write_config_byte(dev, 0x54, tmp2);
111 local_irq_restore(flags);
1da177e4
LT
112}
113
88b2b32b 114static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
1da177e4
LT
115{
116 ide_hwif_t *hwif = HWIF(drive);
36501650 117 struct pci_dev *dev = to_pci_dev(hwif->dev);
1da177e4
LT
118 u8 unit = (drive->select.b.unit & 0x01);
119 u8 tmp1 = 0, tmp2 = 0;
120 u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
121 unsigned long flags;
122
123 local_irq_save(flags);
124 /* high 4-bits: Active, low 4-bits: Recovery */
125 pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
126 drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
127 pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
128
129 pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
130 tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
131 ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
132 tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
133 pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
134 local_irq_restore(flags);
1da177e4
LT
135}
136
26bcb879 137static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
1da177e4 138{
88b2b32b 139 drive->hwif->set_dma_mode(drive, pio + XFER_PIO_0);
1da177e4
LT
140}
141
1da177e4
LT
142static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
143{
144 int bus_speed = system_bus_clock();
145
1da177e4
LT
146 if (bus_speed <= 33)
147 pci_set_drvdata(dev, (void *) aec6xxx_33_base);
148 else
149 pci_set_drvdata(dev, (void *) aec6xxx_34_base);
150
d237bf49
TV
151 /* These are necessary to get AEC6280 Macintosh cards to work */
152 if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
153 (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
154 u8 reg49h = 0, reg4ah = 0;
155 /* Clear reset and test bits. */
156 pci_read_config_byte(dev, 0x49, &reg49h);
157 pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
158 /* Enable chip interrupt output. */
159 pci_read_config_byte(dev, 0x4a, &reg4ah);
160 pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
161 /* Enable burst mode. */
162 pci_read_config_byte(dev, 0x4a, &reg4ah);
163 pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
164 }
165
1da177e4
LT
166 return dev->irq;
167}
168
169static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
170{
36501650 171 struct pci_dev *dev = to_pci_dev(hwif->dev);
18137207 172
26bcb879 173 hwif->set_pio_mode = &aec_set_pio_mode;
1da177e4 174
1c51361a 175 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
88b2b32b 176 hwif->set_dma_mode = &aec6210_set_mode;
1c51361a 177 else
88b2b32b 178 hwif->set_dma_mode = &aec6260_set_mode;
1da177e4 179
bc46b17d 180 if (hwif->dma_base == 0)
1da177e4 181 return;
1da177e4 182
6a7f62af
BZ
183 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
184 return;
185
186 if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
1b9da32a
SS
187 u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
188
36501650 189 pci_read_config_byte(dev, 0x49, &ata66);
49521f97
BZ
190
191 hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
1da177e4 192 }
1da177e4
LT
193}
194
85620436 195static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
1da177e4
LT
196 { /* 0 */
197 .name = "AEC6210",
1da177e4
LT
198 .init_chipset = init_chipset_aec62xx,
199 .init_hwif = init_hwif_aec62xx,
1da177e4 200 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
1c51361a
BZ
201 .host_flags = IDE_HFLAG_SERIALIZE |
202 IDE_HFLAG_NO_ATAPI_DMA |
4166c199 203 IDE_HFLAG_NO_DSC |
4db90a14 204 IDE_HFLAG_ABUSE_SET_DMA_MODE |
1c51361a 205 IDE_HFLAG_OFF_BOARD,
4099d143 206 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
207 .mwdma_mask = ATA_MWDMA2,
208 .udma_mask = ATA_UDMA2,
1da177e4
LT
209 },{ /* 1 */
210 .name = "AEC6260",
1da177e4
LT
211 .init_chipset = init_chipset_aec62xx,
212 .init_hwif = init_hwif_aec62xx,
47b68788 213 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA |
4db90a14 214 IDE_HFLAG_ABUSE_SET_DMA_MODE |
47b68788 215 IDE_HFLAG_OFF_BOARD,
4099d143 216 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
217 .mwdma_mask = ATA_MWDMA2,
218 .udma_mask = ATA_UDMA4,
1da177e4
LT
219 },{ /* 2 */
220 .name = "AEC6260R",
1da177e4
LT
221 .init_chipset = init_chipset_aec62xx,
222 .init_hwif = init_hwif_aec62xx,
1da177e4 223 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
4db90a14
BZ
224 .host_flags = IDE_HFLAG_NO_ATAPI_DMA |
225 IDE_HFLAG_ABUSE_SET_DMA_MODE,
4099d143 226 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
227 .mwdma_mask = ATA_MWDMA2,
228 .udma_mask = ATA_UDMA4,
1da177e4 229 },{ /* 3 */
b1d19db4 230 .name = "AEC6280",
1da177e4
LT
231 .init_chipset = init_chipset_aec62xx,
232 .init_hwif = init_hwif_aec62xx,
4db90a14
BZ
233 .host_flags = IDE_HFLAG_NO_ATAPI_DMA |
234 IDE_HFLAG_ABUSE_SET_DMA_MODE |
235 IDE_HFLAG_OFF_BOARD,
4099d143 236 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
237 .mwdma_mask = ATA_MWDMA2,
238 .udma_mask = ATA_UDMA5,
1da177e4 239 },{ /* 4 */
b1d19db4 240 .name = "AEC6280R",
1da177e4
LT
241 .init_chipset = init_chipset_aec62xx,
242 .init_hwif = init_hwif_aec62xx,
1da177e4 243 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
4db90a14
BZ
244 .host_flags = IDE_HFLAG_NO_ATAPI_DMA |
245 IDE_HFLAG_ABUSE_SET_DMA_MODE |
246 IDE_HFLAG_OFF_BOARD,
4099d143 247 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
248 .mwdma_mask = ATA_MWDMA2,
249 .udma_mask = ATA_UDMA5,
1da177e4
LT
250 }
251};
252
253/**
254 * aec62xx_init_one - called when a AEC is found
255 * @dev: the aec62xx device
256 * @id: the matching pci id
257 *
258 * Called when the PCI registration layer (or the IDE initialization)
259 * finds a device matching our IDE device tables.
b1d19db4
SS
260 *
261 * NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
039788e1 262 * chips, pass a local copy of 'struct ide_port_info' down the call chain.
1da177e4 263 */
039788e1 264
1da177e4
LT
265static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
266{
039788e1 267 struct ide_port_info d;
df95f5ab 268 u8 idx = id->driver_data;
b48d0817
AR
269 int err;
270
271 err = pci_enable_device(dev);
272 if (err)
273 return err;
df95f5ab
BZ
274
275 d = aec62xx_chipsets[idx];
276
277 if (idx == 3 || idx == 4) {
278 unsigned long dma_base = pci_resource_start(dev, 4);
279
280 if (inb(dma_base + 2) & 0x10) {
281 d.name = (idx == 4) ? "AEC6880R" : "AEC6880";
282 d.udma_mask = ATA_UDMA6;
283 }
284 }
1da177e4 285
b48d0817
AR
286 err = ide_setup_pci_device(dev, &d);
287 if (err)
288 pci_disable_device(dev);
289
290 return err;
1da177e4
LT
291}
292
9cbcc5e3
BZ
293static const struct pci_device_id aec62xx_pci_tbl[] = {
294 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 },
295 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 },
296 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 },
297 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 },
298 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 },
1da177e4
LT
299 { 0, },
300};
301MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
302
303static struct pci_driver driver = {
304 .name = "AEC62xx_IDE",
305 .id_table = aec62xx_pci_tbl,
306 .probe = aec62xx_init_one,
307};
308
82ab1eec 309static int __init aec62xx_ide_init(void)
1da177e4
LT
310{
311 return ide_pci_register_driver(&driver);
312}
313
314module_init(aec62xx_ide_init);
315
316MODULE_AUTHOR("Andre Hedrick");
317MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
318MODULE_LICENSE("GPL");