2 * linux/drivers/ide/pci/siimage.c Version 1.18 Oct 18 2007
4 * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
5 * Copyright (C) 2003 Red Hat <alan@redhat.com>
6 * Copyright (C) 2007 MontaVista Software, Inc.
7 * Copyright (C) 2007 Bartlomiej Zolnierkiewicz
9 * May be copied or modified under the terms of the GNU General Public License
11 * Documentation for CMD680:
12 * http://gkernel.sourceforge.net/specs/sii/sii-0680a-v1.31.pdf.bz2
14 * Documentation for SiI 3112:
15 * http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2
17 * Errata and other documentation only available under NDA.
21 * If you are using Marvell SATA-IDE adapters with Maxtor drives
22 * ensure the system is set up for ATA100/UDMA5 not UDMA6.
24 * If you are using WD drives with SATA bridges you must set the
25 * drive to "Single". "Master" will hang
27 * If you have strange problems with nVidia chipset systems please
28 * see the SI support documentation and update your system BIOS
31 * The Dell DRAC4 has some interesting features including effectively hot
32 * unplugging/replugging the virtual CD interface when the DRAC is reset.
33 * This often causes drivers/ide/siimage to panic but is ok with the rather
34 * smarter code in libata.
41 #include <linux/types.h>
42 #include <linux/module.h>
43 #include <linux/pci.h>
44 #include <linux/delay.h>
45 #include <linux/hdreg.h>
46 #include <linux/ide.h>
47 #include <linux/init.h>
52 * pdev_is_sata - check if device is SATA
53 * @pdev: PCI device to check
55 * Returns true if this is a SATA controller
58 static int pdev_is_sata(struct pci_dev *pdev)
60 #ifdef CONFIG_BLK_DEV_IDE_SATA
61 switch(pdev->device) {
62 case PCI_DEVICE_ID_SII_3112:
63 case PCI_DEVICE_ID_SII_1210SA:
65 case PCI_DEVICE_ID_SII_680:
74 * is_sata - check if hwif is SATA
75 * @hwif: interface to check
77 * Returns true if this is a SATA controller
80 static inline int is_sata(ide_hwif_t *hwif)
82 return pdev_is_sata(hwif->pci_dev);
86 * siimage_selreg - return register base
90 * Turn a config register offset into the right address in either
91 * PCI space or MMIO space to access the control register in question
92 * Thankfully this is a configuration operation so isnt performance
96 static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
98 unsigned long base = (unsigned long)hwif->hwif_data;
101 base += (hwif->channel << 6);
103 base += (hwif->channel << 4);
108 * siimage_seldev - return register base
112 * Turn a config register offset into the right address in either
113 * PCI space or MMIO space to access the control register in question
114 * including accounting for the unit shift.
117 static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
119 ide_hwif_t *hwif = HWIF(drive);
120 unsigned long base = (unsigned long)hwif->hwif_data;
123 base += (hwif->channel << 6);
125 base += (hwif->channel << 4);
126 base |= drive->select.b.unit << drive->select.b.unit;
131 * sil_udma_filter - compute UDMA mask
134 * Compute the available UDMA speeds for the device on the interface.
136 * For the CMD680 this depends on the clocking mode (scsc), for the
137 * SI3112 SATA controller life is a bit simpler.
140 static u8 sil_pata_udma_filter(ide_drive_t *drive)
142 ide_hwif_t *hwif = drive->hwif;
143 unsigned long base = (unsigned long) hwif->hwif_data;
144 u8 mask = 0, scsc = 0;
147 scsc = hwif->INB(base + 0x4A);
149 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
151 if ((scsc & 0x30) == 0x10) /* 133 */
153 else if ((scsc & 0x30) == 0x20) /* 2xPCI */
155 else if ((scsc & 0x30) == 0x00) /* 100 */
157 else /* Disabled ? */
163 static u8 sil_sata_udma_filter(ide_drive_t *drive)
165 return strstr(drive->id->model, "Maxtor") ? ATA_UDMA5 : ATA_UDMA6;
169 * sil_set_pio_mode - set host controller for PIO mode
171 * @pio: PIO mode number
173 * Load the timing settings for this device mode into the
174 * controller. If we are in PIO mode 3 or 4 turn on IORDY
175 * monitoring (bit 9). The TF timing is bits 31:16
178 static void sil_set_pio_mode(ide_drive_t *drive, u8 pio)
180 const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 };
181 const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
183 ide_hwif_t *hwif = HWIF(drive);
184 ide_drive_t *pair = ide_get_paired_drive(drive);
187 unsigned long addr = siimage_seldev(drive, 0x04);
188 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
189 unsigned long base = (unsigned long)hwif->hwif_data;
191 u8 addr_mask = hwif->channel ? (hwif->mmio ? 0xF4 : 0x84)
192 : (hwif->mmio ? 0xB4 : 0x80);
194 u8 unit = drive->select.b.unit;
196 /* trim *taskfile* PIO to the slowest of the master/slave */
198 u8 pair_pio = ide_get_best_pio_mode(pair, 255, 4);
200 if (pair_pio < tf_pio)
204 /* cheat for now and use the docs */
205 speedp = data_speed[pio];
206 speedt = tf_speed[tf_pio];
209 hwif->OUTW(speedp, addr);
210 hwif->OUTW(speedt, tfaddr);
211 /* Now set up IORDY */
213 hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
215 hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
217 mode = hwif->INB(base + addr_mask);
218 mode &= ~(unit ? 0x30 : 0x03);
219 mode |= (unit ? 0x10 : 0x01);
220 hwif->OUTB(mode, base + addr_mask);
222 pci_write_config_word(hwif->pci_dev, addr, speedp);
223 pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
224 pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp);
226 /* Set IORDY for mode 3 or 4 */
229 pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
231 pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
232 mode &= ~(unit ? 0x30 : 0x03);
233 mode |= (unit ? 0x10 : 0x01);
234 pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
239 * sil_set_dma_mode - set host controller for DMA mode
243 * Tune the SiI chipset for the desired DMA mode.
246 static void sil_set_dma_mode(ide_drive_t *drive, const u8 speed)
248 u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
249 u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
250 u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
252 ide_hwif_t *hwif = HWIF(drive);
253 u16 ultra = 0, multi = 0;
254 u8 mode = 0, unit = drive->select.b.unit;
255 unsigned long base = (unsigned long)hwif->hwif_data;
256 u8 scsc = 0, addr_mask = ((hwif->channel) ?
257 ((hwif->mmio) ? 0xF4 : 0x84) :
258 ((hwif->mmio) ? 0xB4 : 0x80));
260 unsigned long ma = siimage_seldev(drive, 0x08);
261 unsigned long ua = siimage_seldev(drive, 0x0C);
264 scsc = hwif->INB(base + 0x4A);
265 mode = hwif->INB(base + addr_mask);
266 multi = hwif->INW(ma);
267 ultra = hwif->INW(ua);
269 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
270 pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
271 pci_read_config_word(hwif->pci_dev, ma, &multi);
272 pci_read_config_word(hwif->pci_dev, ua, &ultra);
275 mode &= ~((unit) ? 0x30 : 0x03);
277 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
279 scsc = is_sata(hwif) ? 1 : scsc;
285 multi = dma[speed - XFER_MW_DMA_0];
286 mode |= ((unit) ? 0x20 : 0x02);
296 ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) :
297 (ultra5[speed - XFER_UDMA_0]));
298 mode |= ((unit) ? 0x30 : 0x03);
305 hwif->OUTB(mode, base + addr_mask);
306 hwif->OUTW(multi, ma);
307 hwif->OUTW(ultra, ua);
309 pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
310 pci_write_config_word(hwif->pci_dev, ma, multi);
311 pci_write_config_word(hwif->pci_dev, ua, ultra);
315 /* returns 1 if dma irq issued, 0 otherwise */
316 static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
318 ide_hwif_t *hwif = HWIF(drive);
320 unsigned long addr = siimage_selreg(hwif, 1);
322 /* return 1 if INTR asserted */
323 if ((hwif->INB(hwif->dma_status) & 4) == 4)
326 /* return 1 if Device INTR asserted */
327 pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat);
329 return 0; //return 1;
334 * siimage_mmio_ide_dma_test_irq - check we caused an IRQ
335 * @drive: drive we are testing
337 * Check if we caused an IDE DMA interrupt. We may also have caused
338 * SATA status interrupts, if so we clean them up and continue.
341 static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
343 ide_hwif_t *hwif = HWIF(drive);
344 unsigned long addr = siimage_selreg(hwif, 0x1);
346 if (SATA_ERROR_REG) {
347 unsigned long base = (unsigned long)hwif->hwif_data;
349 u32 ext_stat = readl((void __iomem *)(base + 0x10));
351 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
352 u32 sata_error = readl((void __iomem *)SATA_ERROR_REG);
353 writel(sata_error, (void __iomem *)SATA_ERROR_REG);
354 watchdog = (sata_error & 0x00680000) ? 1 : 0;
355 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
356 "watchdog = %d, %s\n",
357 drive->name, sata_error, watchdog,
361 watchdog = (ext_stat & 0x8000) ? 1 : 0;
365 if (!(ext_stat & 0x0404) && !watchdog)
369 /* return 1 if INTR asserted */
370 if ((readb((void __iomem *)hwif->dma_status) & 0x04) == 0x04)
373 /* return 1 if Device INTR asserted */
374 if ((readb((void __iomem *)addr) & 8) == 8)
375 return 0; //return 1;
381 * sil_sata_busproc - bus isolation IOCTL
382 * @drive: drive to isolate/restore
383 * @state: bus state to set
385 * Used by the SII3112 to handle bus isolation. As this is a
386 * SATA controller the work required is quite limited, we
387 * just have to clean up the statistics
390 static int sil_sata_busproc(ide_drive_t * drive, int state)
392 ide_hwif_t *hwif = HWIF(drive);
394 unsigned long addr = siimage_selreg(hwif, 0);
397 stat_config = readl((void __iomem *)addr);
399 pci_read_config_dword(hwif->pci_dev, addr, &stat_config);
403 hwif->drives[0].failures = 0;
404 hwif->drives[1].failures = 0;
407 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
408 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
410 case BUSSTATE_TRISTATE:
411 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
412 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
417 hwif->bus_state = state;
422 * sil_sata_reset_poll - wait for SATA reset
423 * @drive: drive we are resetting
425 * Poll the SATA phy and see whether it has come back from the dead
429 static int sil_sata_reset_poll(ide_drive_t *drive)
431 if (SATA_STATUS_REG) {
432 ide_hwif_t *hwif = HWIF(drive);
434 /* SATA_STATUS_REG is valid only when in MMIO mode */
435 if ((readl((void __iomem *)SATA_STATUS_REG) & 0x03) != 0x03) {
436 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
437 hwif->name, readl((void __iomem *)SATA_STATUS_REG));
438 HWGROUP(drive)->polling = 0;
447 * sil_sata_pre_reset - reset hook
448 * @drive: IDE device being reset
450 * For the SATA devices we need to handle recalibration/geometry
454 static void sil_sata_pre_reset(ide_drive_t *drive)
456 if (drive->media == ide_disk) {
457 drive->special.b.set_geometry = 0;
458 drive->special.b.recalibrate = 0;
463 * siimage_reset - reset a device on an siimage controller
464 * @drive: drive to reset
466 * Perform a controller level reset fo the device. For
467 * SATA we must also check the PHY.
470 static void siimage_reset (ide_drive_t *drive)
472 ide_hwif_t *hwif = HWIF(drive);
474 unsigned long addr = siimage_selreg(hwif, 0);
477 reset = hwif->INB(addr);
478 hwif->OUTB((reset|0x03), addr);
481 hwif->OUTB(reset, addr);
482 (void) hwif->INB(addr);
484 pci_read_config_byte(hwif->pci_dev, addr, &reset);
485 pci_write_config_byte(hwif->pci_dev, addr, reset|0x03);
487 pci_write_config_byte(hwif->pci_dev, addr, reset);
488 pci_read_config_byte(hwif->pci_dev, addr, &reset);
491 if (SATA_STATUS_REG) {
492 /* SATA_STATUS_REG is valid only when in MMIO mode */
493 u32 sata_stat = readl((void __iomem *)SATA_STATUS_REG);
494 printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n",
495 hwif->name, sata_stat, __FUNCTION__);
497 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
498 hwif->name, sata_stat);
505 * proc_reports_siimage - add siimage controller to proc
507 * @clocking: SCSC value
508 * @name: controller name
510 * Report the clocking mode of the controller and add it to
511 * the /proc interface layer
514 static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name)
516 if (!pdev_is_sata(dev)) {
517 printk(KERN_INFO "%s: BASE CLOCK ", name);
520 case 0x03: printk("DISABLED!\n"); break;
521 case 0x02: printk("== 2X PCI\n"); break;
522 case 0x01: printk("== 133\n"); break;
523 case 0x00: printk("== 100\n"); break;
529 * setup_mmio_siimage - switch an SI controller into MMIO
530 * @dev: PCI device we are configuring
533 * Attempt to put the device into mmio mode. There are some slight
534 * complications here with certain systems where the mmio bar isnt
535 * mapped so we have to be sure we can fall back to I/O.
538 static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
540 unsigned long bar5 = pci_resource_start(dev, 5);
541 unsigned long barsize = pci_resource_len(dev, 5);
543 void __iomem *ioaddr;
547 * Drop back to PIO if we can't map the mmio. Some
548 * systems seem to get terminally confused in the PCI
552 if(!request_mem_region(bar5, barsize, name))
554 printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n");
558 ioaddr = ioremap(bar5, barsize);
562 release_mem_region(bar5, barsize);
567 pci_set_drvdata(dev, (void *) ioaddr);
569 if (pdev_is_sata(dev)) {
570 /* make sure IDE0/1 interrupts are not masked */
571 irq_mask = (1 << 22) | (1 << 23);
572 tmp = readl(ioaddr + 0x48);
573 if (tmp & irq_mask) {
575 writel(tmp, ioaddr + 0x48);
576 readl(ioaddr + 0x48); /* flush */
578 writel(0, ioaddr + 0x148);
579 writel(0, ioaddr + 0x1C8);
582 writeb(0, ioaddr + 0xB4);
583 writeb(0, ioaddr + 0xF4);
584 tmpbyte = readb(ioaddr + 0x4A);
586 switch(tmpbyte & 0x30) {
588 /* In 100 MHz clocking, try and switch to 133 */
589 writeb(tmpbyte|0x10, ioaddr + 0x4A);
592 /* On 133Mhz clocking */
595 /* On PCIx2 clocking */
598 /* Clocking is disabled */
599 /* 133 clock attempt to force it on */
600 writeb(tmpbyte & ~0x20, ioaddr + 0x4A);
604 writeb( 0x72, ioaddr + 0xA1);
605 writew( 0x328A, ioaddr + 0xA2);
606 writel(0x62DD62DD, ioaddr + 0xA4);
607 writel(0x43924392, ioaddr + 0xA8);
608 writel(0x40094009, ioaddr + 0xAC);
609 writeb( 0x72, ioaddr + 0xE1);
610 writew( 0x328A, ioaddr + 0xE2);
611 writel(0x62DD62DD, ioaddr + 0xE4);
612 writel(0x43924392, ioaddr + 0xE8);
613 writel(0x40094009, ioaddr + 0xEC);
615 if (pdev_is_sata(dev)) {
616 writel(0xFFFF0000, ioaddr + 0x108);
617 writel(0xFFFF0000, ioaddr + 0x188);
618 writel(0x00680000, ioaddr + 0x148);
619 writel(0x00680000, ioaddr + 0x1C8);
622 tmpbyte = readb(ioaddr + 0x4A);
624 proc_reports_siimage(dev, (tmpbyte>>4), name);
629 * init_chipset_siimage - set up an SI device
633 * Perform the initial PCI set up for this device. Attempt to switch
634 * to 133MHz clocking if the system isn't already set up to do it.
637 static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const char *name)
639 u8 rev = dev->revision, tmpbyte = 0, BA5_EN = 0;
641 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, rev ? 1 : 255);
643 pci_read_config_byte(dev, 0x8A, &BA5_EN);
644 if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) {
645 if (setup_mmio_siimage(dev, name)) {
650 pci_write_config_byte(dev, 0x80, 0x00);
651 pci_write_config_byte(dev, 0x84, 0x00);
652 pci_read_config_byte(dev, 0x8A, &tmpbyte);
653 switch(tmpbyte & 0x30) {
655 /* 133 clock attempt to force it on */
656 pci_write_config_byte(dev, 0x8A, tmpbyte|0x10);
658 /* if clocking is disabled */
659 /* 133 clock attempt to force it on */
660 pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20);
665 /* BIOS set PCI x2 clocking */
669 pci_read_config_byte(dev, 0x8A, &tmpbyte);
671 pci_write_config_byte(dev, 0xA1, 0x72);
672 pci_write_config_word(dev, 0xA2, 0x328A);
673 pci_write_config_dword(dev, 0xA4, 0x62DD62DD);
674 pci_write_config_dword(dev, 0xA8, 0x43924392);
675 pci_write_config_dword(dev, 0xAC, 0x40094009);
676 pci_write_config_byte(dev, 0xB1, 0x72);
677 pci_write_config_word(dev, 0xB2, 0x328A);
678 pci_write_config_dword(dev, 0xB4, 0x62DD62DD);
679 pci_write_config_dword(dev, 0xB8, 0x43924392);
680 pci_write_config_dword(dev, 0xBC, 0x40094009);
682 proc_reports_siimage(dev, (tmpbyte>>4), name);
687 * init_mmio_iops_siimage - set up the iops for MMIO
688 * @hwif: interface to set up
690 * The basic setup here is fairly simple, we can use standard MMIO
691 * operations. However we do have to set the taskfile register offsets
692 * by hand as there isnt a standard defined layout for them this
695 * The hardware supports buffered taskfiles and also some rather nice
696 * extended PRD tables. For better SI3112 support use the libata driver
699 static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
701 struct pci_dev *dev = hwif->pci_dev;
702 void *addr = pci_get_drvdata(dev);
703 u8 ch = hwif->channel;
708 * Fill in the basic HWIF bits
711 default_hwif_mmiops(hwif);
712 hwif->hwif_data = addr;
715 * Now set up the hw. We have to do this ourselves as
716 * the MMIO layout isnt the same as the standard port
720 memset(&hw, 0, sizeof(hw_regs_t));
722 base = (unsigned long)addr;
729 * The buffered task file doesn't have status/control
730 * so we can't currently use it sanely since we want to
733 hw.io_ports[IDE_DATA_OFFSET] = base;
734 hw.io_ports[IDE_ERROR_OFFSET] = base + 1;
735 hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
736 hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
737 hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
738 hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
739 hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
740 hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
741 hw.io_ports[IDE_CONTROL_OFFSET] = base + 10;
743 hw.io_ports[IDE_IRQ_OFFSET] = 0;
745 if (pdev_is_sata(dev)) {
746 base = (unsigned long)addr;
749 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
750 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
751 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
752 hwif->sata_misc[SATA_MISC_OFFSET] = base + 0x140;
753 hwif->sata_misc[SATA_PHY_OFFSET] = base + 0x144;
754 hwif->sata_misc[SATA_IEN_OFFSET] = base + 0x148;
757 memcpy(hwif->io_ports, hw.io_ports, sizeof(hwif->io_ports));
759 hwif->irq = dev->irq;
761 hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00);
766 static int is_dev_seagate_sata(ide_drive_t *drive)
768 const char *s = &drive->id->model[0];
774 len = strnlen(s, sizeof(drive->id->model));
776 if ((len > 4) && (!memcmp(s, "ST", 2))) {
777 if ((!memcmp(s + len - 2, "AS", 2)) ||
778 (!memcmp(s + len - 3, "ASL", 3))) {
779 printk(KERN_INFO "%s: applying pessimistic Seagate "
780 "errata fix\n", drive->name);
788 * siimage_fixup - post probe fixups
789 * @hwif: interface to fix up
791 * Called after drive probe we use this to decide whether the
792 * Seagate fixup must be applied. This used to be in init_iops but
793 * that can occur before we know what drives are present.
796 static void __devinit siimage_fixup(ide_hwif_t *hwif)
798 /* Try and raise the rqsize */
799 if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0]))
804 * init_iops_siimage - set up iops
805 * @hwif: interface to set up
807 * Do the basic setup for the SIIMAGE hardware interface
808 * and then do the MMIO setup if we can. This is the first
809 * look in we get for setting up the hwif so that we
810 * can get the iops right before using them.
813 static void __devinit init_iops_siimage(ide_hwif_t *hwif)
815 hwif->hwif_data = NULL;
817 /* Pessimal until we finish probing */
820 if (pci_get_drvdata(hwif->pci_dev) == NULL)
823 init_mmio_iops_siimage(hwif);
827 * ata66_siimage - check for 80 pin cable
828 * @hwif: interface to check
830 * Check for the presence of an ATA66 capable cable on the
834 static u8 __devinit ata66_siimage(ide_hwif_t *hwif)
836 unsigned long addr = siimage_selreg(hwif, 0);
839 if (pci_get_drvdata(hwif->pci_dev) == NULL)
840 pci_read_config_byte(hwif->pci_dev, addr, &ata66);
842 ata66 = hwif->INB(addr);
844 return (ata66 & 0x01) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
848 * init_hwif_siimage - set up hwif structs
849 * @hwif: interface to set up
851 * We do the basic set up of the interface structure. The SIIMAGE
852 * requires several custom handlers so we override the default
853 * ide DMA handlers appropriately
856 static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
858 u8 sata = is_sata(hwif);
860 hwif->resetproc = &siimage_reset;
861 hwif->set_pio_mode = &sil_set_pio_mode;
862 hwif->set_dma_mode = &sil_set_dma_mode;
865 static int first = 1;
867 hwif->busproc = &sil_sata_busproc;
868 hwif->reset_poll = &sil_sata_reset_poll;
869 hwif->pre_reset = &sil_sata_pre_reset;
870 hwif->udma_filter = &sil_sata_udma_filter;
873 printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n");
877 hwif->udma_filter = &sil_pata_udma_filter;
879 if (hwif->dma_base == 0)
883 hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA;
885 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
886 hwif->cbl = ata66_siimage(hwif);
889 hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
891 hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq;
895 #define DECLARE_SII_DEV(name_str) \
898 .init_chipset = init_chipset_siimage, \
899 .init_iops = init_iops_siimage, \
900 .init_hwif = init_hwif_siimage, \
901 .fixup = siimage_fixup, \
902 .host_flags = IDE_HFLAG_BOOTABLE, \
903 .pio_mask = ATA_PIO4, \
904 .mwdma_mask = ATA_MWDMA2, \
905 .udma_mask = ATA_UDMA6, \
908 static const struct ide_port_info siimage_chipsets[] __devinitdata = {
909 /* 0 */ DECLARE_SII_DEV("SiI680"),
910 /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"),
911 /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA")
915 * siimage_init_one - pci layer discovery entry
917 * @id: ident table entry
919 * Called by the PCI code when it finds an SI680 or SI3112 controller.
920 * We then use the IDE PCI generic helper to do most of the work.
923 static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id)
925 return ide_setup_pci_device(dev, &siimage_chipsets[id->driver_data]);
928 static const struct pci_device_id siimage_pci_tbl[] = {
929 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), 0 },
930 #ifdef CONFIG_BLK_DEV_IDE_SATA
931 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_3112), 1 },
932 { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 2 },
936 MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
938 static struct pci_driver driver = {
940 .id_table = siimage_pci_tbl,
941 .probe = siimage_init_one,
944 static int __init siimage_ide_init(void)
946 return ide_pci_register_driver(&driver);
949 module_init(siimage_ide_init);
951 MODULE_AUTHOR("Andre Hedrick, Alan Cox");
952 MODULE_DESCRIPTION("PCI driver module for SiI IDE");
953 MODULE_LICENSE("GPL");