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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 | ||
19 | struct chipset_bus_clock_list_entry { | |
20 | u8 xfer_speed; | |
21 | u8 chipset_settings; | |
22 | u8 ultra_settings; | |
23 | }; | |
24 | ||
f201f504 | 25 | static 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 | 45 | static 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 | */ | |
72 | static 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 | ||
81 | static 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 | 90 | static 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 | 116 | static 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 | 139 | static 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 |
144 | static 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, ®49h); | |
159 | pci_write_config_byte(dev, 0x49, reg49h & ~0x30); | |
160 | /* Enable chip interrupt output. */ | |
161 | pci_read_config_byte(dev, 0x4a, ®4ah); | |
162 | pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01); | |
163 | /* Enable burst mode. */ | |
164 | pci_read_config_byte(dev, 0x4a, ®4ah); | |
165 | pci_write_config_byte(dev, 0x4a, reg4ah | 0x80); | |
166 | } | |
167 | ||
1da177e4 LT |
168 | return dev->irq; |
169 | } | |
170 | ||
171 | static 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 | 197 | static 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 | | |
4166c199 | 205 | IDE_HFLAG_NO_DSC | |
4db90a14 | 206 | IDE_HFLAG_ABUSE_SET_DMA_MODE | |
1c51361a | 207 | IDE_HFLAG_OFF_BOARD, |
4099d143 | 208 | .pio_mask = ATA_PIO4, |
5f8b6c34 BZ |
209 | .mwdma_mask = ATA_MWDMA2, |
210 | .udma_mask = ATA_UDMA2, | |
1da177e4 LT |
211 | },{ /* 1 */ |
212 | .name = "AEC6260", | |
1da177e4 LT |
213 | .init_chipset = init_chipset_aec62xx, |
214 | .init_hwif = init_hwif_aec62xx, | |
47b68788 | 215 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA | |
4db90a14 | 216 | IDE_HFLAG_ABUSE_SET_DMA_MODE | |
47b68788 | 217 | IDE_HFLAG_OFF_BOARD, |
4099d143 | 218 | .pio_mask = ATA_PIO4, |
5f8b6c34 BZ |
219 | .mwdma_mask = ATA_MWDMA2, |
220 | .udma_mask = ATA_UDMA4, | |
1da177e4 LT |
221 | },{ /* 2 */ |
222 | .name = "AEC6260R", | |
1da177e4 LT |
223 | .init_chipset = init_chipset_aec62xx, |
224 | .init_hwif = init_hwif_aec62xx, | |
1da177e4 | 225 | .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, |
4db90a14 BZ |
226 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | |
227 | IDE_HFLAG_ABUSE_SET_DMA_MODE, | |
4099d143 | 228 | .pio_mask = ATA_PIO4, |
5f8b6c34 BZ |
229 | .mwdma_mask = ATA_MWDMA2, |
230 | .udma_mask = ATA_UDMA4, | |
1da177e4 | 231 | },{ /* 3 */ |
b1d19db4 | 232 | .name = "AEC6280", |
1da177e4 LT |
233 | .init_chipset = init_chipset_aec62xx, |
234 | .init_hwif = init_hwif_aec62xx, | |
4db90a14 BZ |
235 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | |
236 | IDE_HFLAG_ABUSE_SET_DMA_MODE | | |
237 | IDE_HFLAG_OFF_BOARD, | |
4099d143 | 238 | .pio_mask = ATA_PIO4, |
5f8b6c34 BZ |
239 | .mwdma_mask = ATA_MWDMA2, |
240 | .udma_mask = ATA_UDMA5, | |
1da177e4 | 241 | },{ /* 4 */ |
b1d19db4 | 242 | .name = "AEC6280R", |
1da177e4 LT |
243 | .init_chipset = init_chipset_aec62xx, |
244 | .init_hwif = init_hwif_aec62xx, | |
1da177e4 | 245 | .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, |
4db90a14 BZ |
246 | .host_flags = IDE_HFLAG_NO_ATAPI_DMA | |
247 | IDE_HFLAG_ABUSE_SET_DMA_MODE | | |
248 | IDE_HFLAG_OFF_BOARD, | |
4099d143 | 249 | .pio_mask = ATA_PIO4, |
5f8b6c34 BZ |
250 | .mwdma_mask = ATA_MWDMA2, |
251 | .udma_mask = ATA_UDMA5, | |
1da177e4 LT |
252 | } |
253 | }; | |
254 | ||
255 | /** | |
256 | * aec62xx_init_one - called when a AEC is found | |
257 | * @dev: the aec62xx device | |
258 | * @id: the matching pci id | |
259 | * | |
260 | * Called when the PCI registration layer (or the IDE initialization) | |
261 | * finds a device matching our IDE device tables. | |
b1d19db4 SS |
262 | * |
263 | * NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R] | |
039788e1 | 264 | * chips, pass a local copy of 'struct ide_port_info' down the call chain. |
1da177e4 | 265 | */ |
039788e1 | 266 | |
1da177e4 LT |
267 | static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id) |
268 | { | |
039788e1 | 269 | struct ide_port_info d; |
df95f5ab | 270 | u8 idx = id->driver_data; |
b48d0817 AR |
271 | int err; |
272 | ||
273 | err = pci_enable_device(dev); | |
274 | if (err) | |
275 | return err; | |
df95f5ab BZ |
276 | |
277 | d = aec62xx_chipsets[idx]; | |
278 | ||
279 | if (idx == 3 || idx == 4) { | |
280 | unsigned long dma_base = pci_resource_start(dev, 4); | |
281 | ||
282 | if (inb(dma_base + 2) & 0x10) { | |
283 | d.name = (idx == 4) ? "AEC6880R" : "AEC6880"; | |
284 | d.udma_mask = ATA_UDMA6; | |
285 | } | |
286 | } | |
1da177e4 | 287 | |
b48d0817 AR |
288 | err = ide_setup_pci_device(dev, &d); |
289 | if (err) | |
290 | pci_disable_device(dev); | |
291 | ||
292 | return err; | |
1da177e4 LT |
293 | } |
294 | ||
9cbcc5e3 BZ |
295 | static const struct pci_device_id aec62xx_pci_tbl[] = { |
296 | { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 }, | |
297 | { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 }, | |
298 | { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 }, | |
299 | { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 }, | |
300 | { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 }, | |
1da177e4 LT |
301 | { 0, }, |
302 | }; | |
303 | MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl); | |
304 | ||
305 | static struct pci_driver driver = { | |
306 | .name = "AEC62xx_IDE", | |
307 | .id_table = aec62xx_pci_tbl, | |
308 | .probe = aec62xx_init_one, | |
309 | }; | |
310 | ||
82ab1eec | 311 | static int __init aec62xx_ide_init(void) |
1da177e4 LT |
312 | { |
313 | return ide_pci_register_driver(&driver); | |
314 | } | |
315 | ||
316 | module_init(aec62xx_ide_init); | |
317 | ||
318 | MODULE_AUTHOR("Andre Hedrick"); | |
319 | MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE"); | |
320 | MODULE_LICENSE("GPL"); |