2 * linux/drivers/ide/pci/aec62xx.c Version 0.27 Sep 16, 2007
4 * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org>
5 * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com>
9 #include <linux/module.h>
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>
19 struct chipset_bus_clock_list_entry {
25 static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = {
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 },
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 },
45 static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = {
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 },
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 },
66 ((struct chipset_bus_clock_list_entry *) pci_get_drvdata((D)))
70 * TO DO: active tuning and correction of cards without a bios.
72 static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
74 for ( ; chipset_table->xfer_speed ; chipset_table++)
75 if (chipset_table->xfer_speed == speed) {
76 return chipset_table->chipset_settings;
78 return chipset_table->chipset_settings;
81 static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table)
83 for ( ; chipset_table->xfer_speed ; chipset_table++)
84 if (chipset_table->xfer_speed == speed) {
85 return chipset_table->ultra_settings;
87 return chipset_table->ultra_settings;
90 static void aec6210_set_mode(ide_drive_t *drive, const u8 speed)
92 ide_hwif_t *hwif = HWIF(drive);
93 struct pci_dev *dev = hwif->pci_dev;
95 u8 ultra = 0, ultra_conf = 0;
96 u8 tmp0 = 0, tmp1 = 0, tmp2 = 0;
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);
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);
116 static void aec6260_set_mode(ide_drive_t *drive, const u8 speed)
118 ide_hwif_t *hwif = HWIF(drive);
119 struct pci_dev *dev = hwif->pci_dev;
120 u8 unit = (drive->select.b.unit & 0x01);
121 u8 tmp1 = 0, tmp2 = 0;
122 u8 ultra = 0, drive_conf = 0, ultra_conf = 0;
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);
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);
139 static void aec_set_pio_mode(ide_drive_t *drive, const u8 pio)
141 drive->hwif->set_dma_mode(drive, pio + XFER_PIO_0);
144 static unsigned int __devinit init_chipset_aec62xx(struct pci_dev *dev, const char *name)
146 int bus_speed = system_bus_clock();
149 pci_set_drvdata(dev, (void *) aec6xxx_33_base);
151 pci_set_drvdata(dev, (void *) aec6xxx_34_base);
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);
171 static void __devinit init_hwif_aec62xx(ide_hwif_t *hwif)
173 struct pci_dev *dev = hwif->pci_dev;
175 hwif->set_pio_mode = &aec_set_pio_mode;
177 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
178 hwif->set_dma_mode = &aec6210_set_mode;
180 hwif->set_dma_mode = &aec6260_set_mode;
182 if (hwif->dma_base == 0)
185 if (dev->device == PCI_DEVICE_ID_ARTOP_ATP850UF)
188 if (hwif->cbl != ATA_CBL_PATA40_SHORT) {
189 u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01;
191 pci_read_config_byte(hwif->pci_dev, 0x49, &ata66);
193 hwif->cbl = (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80;
197 static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
200 .init_chipset = init_chipset_aec62xx,
201 .init_hwif = init_hwif_aec62xx,
202 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
203 .host_flags = IDE_HFLAG_SERIALIZE |
204 IDE_HFLAG_NO_ATAPI_DMA |
206 .pio_mask = ATA_PIO4,
207 .mwdma_mask = ATA_MWDMA2,
208 .udma_mask = ATA_UDMA2,
211 .init_chipset = init_chipset_aec62xx,
212 .init_hwif = init_hwif_aec62xx,
213 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA |
215 .pio_mask = ATA_PIO4,
216 .mwdma_mask = ATA_MWDMA2,
217 .udma_mask = ATA_UDMA4,
220 .init_chipset = init_chipset_aec62xx,
221 .init_hwif = init_hwif_aec62xx,
222 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
223 .host_flags = IDE_HFLAG_NO_ATAPI_DMA,
224 .pio_mask = ATA_PIO4,
225 .mwdma_mask = ATA_MWDMA2,
226 .udma_mask = ATA_UDMA4,
229 .init_chipset = init_chipset_aec62xx,
230 .init_hwif = init_hwif_aec62xx,
231 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
232 .pio_mask = ATA_PIO4,
233 .mwdma_mask = ATA_MWDMA2,
234 .udma_mask = ATA_UDMA5,
237 .init_chipset = init_chipset_aec62xx,
238 .init_hwif = init_hwif_aec62xx,
239 .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}},
240 .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_OFF_BOARD,
241 .pio_mask = ATA_PIO4,
242 .mwdma_mask = ATA_MWDMA2,
243 .udma_mask = ATA_UDMA5,
248 * aec62xx_init_one - called when a AEC is found
249 * @dev: the aec62xx device
250 * @id: the matching pci id
252 * Called when the PCI registration layer (or the IDE initialization)
253 * finds a device matching our IDE device tables.
255 * NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R]
256 * chips, pass a local copy of 'struct ide_port_info' down the call chain.
259 static int __devinit aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id)
261 struct ide_port_info d;
262 u8 idx = id->driver_data;
264 d = aec62xx_chipsets[idx];
266 if (idx == 3 || idx == 4) {
267 unsigned long dma_base = pci_resource_start(dev, 4);
269 if (inb(dma_base + 2) & 0x10) {
270 d.name = (idx == 4) ? "AEC6880R" : "AEC6880";
271 d.udma_mask = ATA_UDMA6;
275 return ide_setup_pci_device(dev, &d);
278 static 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 },
286 MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl);
288 static struct pci_driver driver = {
289 .name = "AEC62xx_IDE",
290 .id_table = aec62xx_pci_tbl,
291 .probe = aec62xx_init_one,
294 static int __init aec62xx_ide_init(void)
296 return ide_pci_register_driver(&driver);
299 module_init(aec62xx_ide_init);
301 MODULE_AUTHOR("Andre Hedrick");
302 MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE");
303 MODULE_LICENSE("GPL");