ide: skip ide_wait_not_busy() on noprobe-disks
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / ide / pci / aec62xx.c
CommitLineData
1da177e4 1/*
b1e03865 2 * linux/drivers/ide/pci/aec62xx.c Version 0.27 Sep 16, 2007
1da177e4
LT
3 *
4 * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
826a1b65 5 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
1da177e4
LT
6 *
7 */
8
9#include <linux/module.h>
1da177e4
LT
10#include <linux/types.h>
11#include <linux/pci.h>
12#include <linux/delay.h>
13#include <linux/hdreg.h>
14#include <linux/ide.h>
15#include <linux/init.h>
16
17#include <asm/io.h>
18
19struct chipset_bus_clock_list_entry {
20 u8 xfer_speed;
21 u8 chipset_settings;
22 u8 ultra_settings;
23};
24
f201f504 25static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
1da177e4
LT
26 { XFER_UDMA_6, 0x31, 0x07 },
27 { XFER_UDMA_5, 0x31, 0x06 },
28 { XFER_UDMA_4, 0x31, 0x05 },
29 { XFER_UDMA_3, 0x31, 0x04 },
30 { XFER_UDMA_2, 0x31, 0x03 },
31 { XFER_UDMA_1, 0x31, 0x02 },
32 { XFER_UDMA_0, 0x31, 0x01 },
33
34 { XFER_MW_DMA_2, 0x31, 0x00 },
35 { XFER_MW_DMA_1, 0x31, 0x00 },
36 { XFER_MW_DMA_0, 0x0a, 0x00 },
37 { XFER_PIO_4, 0x31, 0x00 },
38 { XFER_PIO_3, 0x33, 0x00 },
39 { XFER_PIO_2, 0x08, 0x00 },
40 { XFER_PIO_1, 0x0a, 0x00 },
41 { XFER_PIO_0, 0x00, 0x00 },
42 { 0, 0x00, 0x00 }
43};
44
f201f504 45static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
1da177e4
LT
46 { XFER_UDMA_6, 0x41, 0x06 },
47 { XFER_UDMA_5, 0x41, 0x05 },
48 { XFER_UDMA_4, 0x41, 0x04 },
49 { XFER_UDMA_3, 0x41, 0x03 },
50 { XFER_UDMA_2, 0x41, 0x02 },
51 { XFER_UDMA_1, 0x41, 0x01 },
52 { XFER_UDMA_0, 0x41, 0x01 },
53
54 { XFER_MW_DMA_2, 0x41, 0x00 },
55 { XFER_MW_DMA_1, 0x42, 0x00 },
56 { XFER_MW_DMA_0, 0x7a, 0x00 },
57 { XFER_PIO_4, 0x41, 0x00 },
58 { XFER_PIO_3, 0x43, 0x00 },
59 { XFER_PIO_2, 0x78, 0x00 },
60 { XFER_PIO_1, 0x7a, 0x00 },
61 { XFER_PIO_0, 0x70, 0x00 },
62 { 0, 0x00, 0x00 }
63};
64
65#define BUSCLOCK(D) \
66 ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))
67
1da177e4
LT
68
69/*
70 * TO DO: active tuning and correction of cards without a bios.
71 */
72static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
73{
74 for ( ; chipset_table->xfer_speed ; chipset_table++)
75 if (chipset_table->xfer_speed == speed) {
76 return chipset_table->chipset_settings;
77 }
78 return chipset_table->chipset_settings;
79}
80
81static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
82{
83 for ( ; chipset_table->xfer_speed ; chipset_table++)
84 if (chipset_table->xfer_speed == speed) {
85 return chipset_table->ultra_settings;
86 }
87 return chipset_table->ultra_settings;
88}
89
88b2b32b 90static void aec6210_set_mode(ide_drive_t *drive, const u8 speed)
1da177e4
LT
91{
92 ide_hwif_t *hwif = HWIF(drive);
93 struct pci_dev *dev = hwif->pci_dev;
94 u16 d_conf = 0;
1da177e4
LT
95 u8 ultra = 0, ultra_conf = 0;
96 u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
97 unsigned long flags;
98
99 local_irq_save(flags);
100 /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */
101 pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf);
102 tmp0 = pci_bus_clock_list(speed, BUSCLOCK(dev));
103 d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf);
104 pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf);
105
106 tmp1 = 0x00;
107 tmp2 = 0x00;
108 pci_read_config_byte(dev, 0x54, &ultra);
109 tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn))));
110 ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
111 tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn))));
112 pci_write_config_byte(dev, 0x54, tmp2);
113 local_irq_restore(flags);
1da177e4
LT
114}
115
88b2b32b 116static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
1da177e4
LT
117{
118 ide_hwif_t *hwif = HWIF(drive);
119 struct pci_dev *dev = hwif->pci_dev;
1da177e4
LT
120 u8 unit = (drive->select.b.unit & 0x01);
121 u8 tmp1 = 0, tmp2 = 0;
122 u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
123 unsigned long flags;
124
125 local_irq_save(flags);
126 /* high 4-bits: Active, low 4-bits: Recovery */
127 pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf);
128 drive_conf = pci_bus_clock_list(speed, BUSCLOCK(dev));
129 pci_write_config_byte(dev, 0x40|drive->dn, drive_conf);
130
131 pci_read_config_byte(dev, (0x44|hwif->channel), &ultra);
132 tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit))));
133 ultra_conf = pci_bus_clock_list_ultra(speed, BUSCLOCK(dev));
134 tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit))));
135 pci_write_config_byte(dev, (0x44|hwif->channel), tmp2);
136 local_irq_restore(flags);
1da177e4
LT
137}
138
26bcb879 139static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
1da177e4 140{
88b2b32b 141 drive->hwif->set_dma_mode(drive, pio + XFER_PIO_0);
1da177e4
LT
142}
143
1da177e4
LT
144static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
145{
146 int bus_speed = system_bus_clock();
147
1da177e4
LT
148 if (bus_speed <= 33)
149 pci_set_drvdata(dev, (void *) aec6xxx_33_base);
150 else
151 pci_set_drvdata(dev, (void *) aec6xxx_34_base);
152
d237bf49
TV
153 /* These are necessary to get AEC6280 Macintosh cards to work */
154 if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) ||
155 (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) {
156 u8 reg49h = 0, reg4ah = 0;
157 /* Clear reset and test bits. */
158 pci_read_config_byte(dev, 0x49, &reg49h);
159 pci_write_config_byte(dev, 0x49, reg49h & ~0x30);
160 /* Enable chip interrupt output. */
161 pci_read_config_byte(dev, 0x4a, &reg4ah);
162 pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01);
163 /* Enable burst mode. */
164 pci_read_config_byte(dev, 0x4a, &reg4ah);
165 pci_write_config_byte(dev, 0x4a, reg4ah | 0x80);
166 }
167
1da177e4
LT
168 return dev->irq;
169}
170
171static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
172{
1b9da32a 173 struct pci_dev *dev = hwif->pci_dev;
18137207 174
26bcb879 175 hwif->set_pio_mode = &aec_set_pio_mode;
1da177e4 176
1c51361a 177 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
88b2b32b 178 hwif->set_dma_mode = &aec6210_set_mode;
1c51361a 179 else
88b2b32b 180 hwif->set_dma_mode = &aec6260_set_mode;
1da177e4 181
bc46b17d 182 if (hwif->dma_base == 0)
1da177e4 183 return;
1da177e4 184
6a7f62af
BZ
185 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
186 return;
187
188 if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
1b9da32a
SS
189 u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
190
1da177e4 191 pci_read_config_byte(hwif->pci_dev, 0x49, &ata66);
49521f97
BZ
192
193 hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
1da177e4 194 }
1da177e4
LT
195}
196
85620436 197static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
1da177e4
LT
198 { /* 0 */
199 .name = "AEC6210",
1da177e4
LT
200 .init_chipset = init_chipset_aec62xx,
201 .init_hwif = init_hwif_aec62xx,
1da177e4 202 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
1c51361a
BZ
203 .host_flags = IDE_HFLAG_SERIALIZE |
204 IDE_HFLAG_NO_ATAPI_DMA |
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
BZ
213 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA |
214 IDE_HFLAG_OFF_BOARD,
4099d143 215 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
216 .mwdma_mask = ATA_MWDMA2,
217 .udma_mask = ATA_UDMA4,
1da177e4
LT
218 },{ /* 2 */
219 .name = "AEC6260R",
1da177e4
LT
220 .init_chipset = init_chipset_aec62xx,
221 .init_hwif = init_hwif_aec62xx,
1da177e4 222 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
33c1002e 223 .host_flags = IDE_HFLAG_NO_ATAPI_DMA,
4099d143 224 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
225 .mwdma_mask = ATA_MWDMA2,
226 .udma_mask = ATA_UDMA4,
1da177e4 227 },{ /* 3 */
b1d19db4 228 .name = "AEC6280",
1da177e4
LT
229 .init_chipset = init_chipset_aec62xx,
230 .init_hwif = init_hwif_aec62xx,
7cab14a7 231 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
4099d143 232 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
233 .mwdma_mask = ATA_MWDMA2,
234 .udma_mask = ATA_UDMA5,
1da177e4 235 },{ /* 4 */
b1d19db4 236 .name = "AEC6280R",
1da177e4
LT
237 .init_chipset = init_chipset_aec62xx,
238 .init_hwif = init_hwif_aec62xx,
1da177e4 239 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
7cab14a7 240 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
4099d143 241 .pio_mask = ATA_PIO4,
5f8b6c34
BZ
242 .mwdma_mask = ATA_MWDMA2,
243 .udma_mask = ATA_UDMA5,
1da177e4
LT
244 }
245};
246
247/**
248 * aec62xx_init_one - called when a AEC is found
249 * @dev: the aec62xx device
250 * @id: the matching pci id
251 *
252 * Called when the PCI registration layer (or the IDE initialization)
253 * finds a device matching our IDE device tables.
b1d19db4
SS
254 *
255 * NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
039788e1 256 * chips, pass a local copy of 'struct ide_port_info' down the call chain.
1da177e4 257 */
039788e1 258
1da177e4
LT
259static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
260{
039788e1 261 struct ide_port_info d;
df95f5ab
BZ
262 u8 idx = id->driver_data;
263
264 d = aec62xx_chipsets[idx];
265
266 if (idx == 3 || idx == 4) {
267 unsigned long dma_base = pci_resource_start(dev, 4);
268
269 if (inb(dma_base + 2) & 0x10) {
270 d.name = (idx == 4) ? "AEC6880R" : "AEC6880";
271 d.udma_mask = ATA_UDMA6;
272 }
273 }
1da177e4 274
df95f5ab 275 return ide_setup_pci_device(dev, &d);
1da177e4
LT
276}
277
9cbcc5e3
BZ
278static const struct pci_device_id aec62xx_pci_tbl[] = {
279 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 },
280 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 },
281 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 },
282 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 },
283 { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 },
1da177e4
LT
284 { 0, },
285};
286MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
287
288static struct pci_driver driver = {
289 .name = "AEC62xx_IDE",
290 .id_table = aec62xx_pci_tbl,
291 .probe = aec62xx_init_one,
292};
293
82ab1eec 294static int __init aec62xx_ide_init(void)
1da177e4
LT
295{
296 return ide_pci_register_driver(&driver);
297}
298
299module_init(aec62xx_ide_init);
300
301MODULE_AUTHOR("Andre Hedrick");
302MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
303MODULE_LICENSE("GPL");