2 * linux/drivers/ide/pci/siimage.c Version 1.15 Jun 29 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)
62 case PCI_DEVICE_ID_SII_3112:
63 case PCI_DEVICE_ID_SII_1210SA:
65 case PCI_DEVICE_ID_SII_680:
73 * is_sata - check if hwif is SATA
74 * @hwif: interface to check
76 * Returns true if this is a SATA controller
79 static inline int is_sata(ide_hwif_t *hwif)
81 return pdev_is_sata(hwif->pci_dev);
85 * siimage_selreg - return register base
89 * Turn a config register offset into the right address in either
90 * PCI space or MMIO space to access the control register in question
91 * Thankfully this is a configuration operation so isnt performance
95 static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
97 unsigned long base = (unsigned long)hwif->hwif_data;
100 base += (hwif->channel << 6);
102 base += (hwif->channel << 4);
107 * siimage_seldev - return register base
111 * Turn a config register offset into the right address in either
112 * PCI space or MMIO space to access the control register in question
113 * including accounting for the unit shift.
116 static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
118 ide_hwif_t *hwif = HWIF(drive);
119 unsigned long base = (unsigned long)hwif->hwif_data;
122 base += (hwif->channel << 6);
124 base += (hwif->channel << 4);
125 base |= drive->select.b.unit << drive->select.b.unit;
130 * sil_udma_filter - compute UDMA mask
133 * Compute the available UDMA speeds for the device on the interface.
135 * For the CMD680 this depends on the clocking mode (scsc), for the
136 * SI3112 SATA controller life is a bit simpler.
139 static u8 sil_udma_filter(ide_drive_t *drive)
141 ide_hwif_t *hwif = drive->hwif;
142 unsigned long base = (unsigned long) hwif->hwif_data;
143 u8 mask = 0, scsc = 0;
146 scsc = hwif->INB(base + 0x4A);
148 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
151 mask = strstr(drive->id->model, "Maxtor") ? 0x3f : 0x7f;
155 if ((scsc & 0x30) == 0x10) /* 133 */
157 else if ((scsc & 0x30) == 0x20) /* 2xPCI */
159 else if ((scsc & 0x30) == 0x00) /* 100 */
161 else /* Disabled ? */
168 * sil_tune_pio - tune a drive
169 * @drive: drive to tune
170 * @pio: the desired PIO mode
172 * Load the timing settings for this device mode into the
173 * controller. If we are in PIO mode 3 or 4 turn on IORDY
174 * monitoring (bit 9). The TF timing is bits 31:16
177 static void sil_tune_pio(ide_drive_t *drive, u8 pio)
179 const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 };
180 const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 };
182 ide_hwif_t *hwif = HWIF(drive);
183 ide_drive_t *pair = &hwif->drives[drive->dn ^ 1];
186 unsigned long addr = siimage_seldev(drive, 0x04);
187 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
190 /* trim *taskfile* PIO to the slowest of the master/slave */
192 u8 pair_pio = ide_get_best_pio_mode(pair, 255, 4);
194 if (pair_pio < tf_pio)
198 /* cheat for now and use the docs */
199 speedp = data_speed[pio];
200 speedt = tf_speed[tf_pio];
203 hwif->OUTW(speedp, addr);
204 hwif->OUTW(speedt, tfaddr);
205 /* Now set up IORDY */
207 hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
209 hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
211 pci_write_config_word(hwif->pci_dev, addr, speedp);
212 pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
213 pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp);
215 /* Set IORDY for mode 3 or 4 */
218 pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
222 static void sil_tuneproc(ide_drive_t *drive, u8 pio)
224 pio = ide_get_best_pio_mode(drive, pio, 4);
225 sil_tune_pio(drive, pio);
226 (void)ide_config_drive_speed(drive, XFER_PIO_0 + pio);
230 * siimage_tune_chipset - set controller timings
231 * @drive: Drive to set up
232 * @xferspeed: speed we want to achieve
234 * Tune the SII chipset for the desired mode. If we can't achieve
235 * the desired mode then tune for a lower one, but ultimately
236 * make the thing work.
239 static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
241 u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
242 u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
243 u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
245 ide_hwif_t *hwif = HWIF(drive);
246 u16 ultra = 0, multi = 0;
247 u8 mode = 0, unit = drive->select.b.unit;
248 u8 speed = ide_rate_filter(drive, xferspeed);
249 unsigned long base = (unsigned long)hwif->hwif_data;
250 u8 scsc = 0, addr_mask = ((hwif->channel) ?
251 ((hwif->mmio) ? 0xF4 : 0x84) :
252 ((hwif->mmio) ? 0xB4 : 0x80));
254 unsigned long ma = siimage_seldev(drive, 0x08);
255 unsigned long ua = siimage_seldev(drive, 0x0C);
258 scsc = hwif->INB(base + 0x4A);
259 mode = hwif->INB(base + addr_mask);
260 multi = hwif->INW(ma);
261 ultra = hwif->INW(ua);
263 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
264 pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
265 pci_read_config_word(hwif->pci_dev, ma, &multi);
266 pci_read_config_word(hwif->pci_dev, ua, &ultra);
269 mode &= ~((unit) ? 0x30 : 0x03);
271 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
273 scsc = is_sata(hwif) ? 1 : scsc;
281 sil_tune_pio(drive, speed - XFER_PIO_0);
282 mode |= ((unit) ? 0x10 : 0x01);
287 multi = dma[speed - XFER_MW_DMA_0];
288 mode |= ((unit) ? 0x20 : 0x02);
298 ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) :
299 (ultra5[speed - XFER_UDMA_0]));
300 mode |= ((unit) ? 0x30 : 0x03);
307 hwif->OUTB(mode, base + addr_mask);
308 hwif->OUTW(multi, ma);
309 hwif->OUTW(ultra, ua);
311 pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
312 pci_write_config_word(hwif->pci_dev, ma, multi);
313 pci_write_config_word(hwif->pci_dev, ua, ultra);
315 return (ide_config_drive_speed(drive, speed));
319 * siimage_configure_drive_for_dma - set up for DMA transfers
320 * @drive: drive we are going to set up
322 * Set up the drive for DMA, tune the controller and drive as
323 * required. If the drive isn't suitable for DMA or we hit
324 * other problems then we will drop down to PIO and set up
328 static int siimage_config_drive_for_dma (ide_drive_t *drive)
330 if (ide_tune_dma(drive))
333 if (ide_use_fast_pio(drive))
334 sil_tuneproc(drive, 255);
339 /* returns 1 if dma irq issued, 0 otherwise */
340 static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
342 ide_hwif_t *hwif = HWIF(drive);
344 unsigned long addr = siimage_selreg(hwif, 1);
346 /* return 1 if INTR asserted */
347 if ((hwif->INB(hwif->dma_status) & 4) == 4)
350 /* return 1 if Device INTR asserted */
351 pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat);
353 return 0; //return 1;
358 * siimage_mmio_ide_dma_test_irq - check we caused an IRQ
359 * @drive: drive we are testing
361 * Check if we caused an IDE DMA interrupt. We may also have caused
362 * SATA status interrupts, if so we clean them up and continue.
365 static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
367 ide_hwif_t *hwif = HWIF(drive);
368 unsigned long base = (unsigned long)hwif->hwif_data;
369 unsigned long addr = siimage_selreg(hwif, 0x1);
371 if (SATA_ERROR_REG) {
372 u32 ext_stat = readl((void __iomem *)(base + 0x10));
374 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
375 u32 sata_error = readl((void __iomem *)SATA_ERROR_REG);
376 writel(sata_error, (void __iomem *)SATA_ERROR_REG);
377 watchdog = (sata_error & 0x00680000) ? 1 : 0;
378 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
379 "watchdog = %d, %s\n",
380 drive->name, sata_error, watchdog,
384 watchdog = (ext_stat & 0x8000) ? 1 : 0;
388 if (!(ext_stat & 0x0404) && !watchdog)
392 /* return 1 if INTR asserted */
393 if ((readb((void __iomem *)hwif->dma_status) & 0x04) == 0x04)
396 /* return 1 if Device INTR asserted */
397 if ((readb((void __iomem *)addr) & 8) == 8)
398 return 0; //return 1;
404 * siimage_busproc - bus isolation ioctl
405 * @drive: drive to isolate/restore
406 * @state: bus state to set
408 * Used by the SII3112 to handle bus isolation. As this is a
409 * SATA controller the work required is quite limited, we
410 * just have to clean up the statistics
413 static int siimage_busproc (ide_drive_t * drive, int state)
415 ide_hwif_t *hwif = HWIF(drive);
417 unsigned long addr = siimage_selreg(hwif, 0);
420 stat_config = readl((void __iomem *)addr);
422 pci_read_config_dword(hwif->pci_dev, addr, &stat_config);
426 hwif->drives[0].failures = 0;
427 hwif->drives[1].failures = 0;
430 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
431 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
433 case BUSSTATE_TRISTATE:
434 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
435 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
440 hwif->bus_state = state;
445 * siimage_reset_poll - wait for sata reset
446 * @drive: drive we are resetting
448 * Poll the SATA phy and see whether it has come back from the dead
452 static int siimage_reset_poll (ide_drive_t *drive)
454 if (SATA_STATUS_REG) {
455 ide_hwif_t *hwif = HWIF(drive);
457 /* SATA_STATUS_REG is valid only when in MMIO mode */
458 if ((readl((void __iomem *)SATA_STATUS_REG) & 0x03) != 0x03) {
459 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
460 hwif->name, readl((void __iomem *)SATA_STATUS_REG));
461 HWGROUP(drive)->polling = 0;
471 * siimage_pre_reset - reset hook
472 * @drive: IDE device being reset
474 * For the SATA devices we need to handle recalibration/geometry
478 static void siimage_pre_reset (ide_drive_t *drive)
480 if (drive->media != ide_disk)
483 if (is_sata(HWIF(drive)))
485 drive->special.b.set_geometry = 0;
486 drive->special.b.recalibrate = 0;
491 * siimage_reset - reset a device on an siimage controller
492 * @drive: drive to reset
494 * Perform a controller level reset fo the device. For
495 * SATA we must also check the PHY.
498 static void siimage_reset (ide_drive_t *drive)
500 ide_hwif_t *hwif = HWIF(drive);
502 unsigned long addr = siimage_selreg(hwif, 0);
505 reset = hwif->INB(addr);
506 hwif->OUTB((reset|0x03), addr);
509 hwif->OUTB(reset, addr);
510 (void) hwif->INB(addr);
512 pci_read_config_byte(hwif->pci_dev, addr, &reset);
513 pci_write_config_byte(hwif->pci_dev, addr, reset|0x03);
515 pci_write_config_byte(hwif->pci_dev, addr, reset);
516 pci_read_config_byte(hwif->pci_dev, addr, &reset);
519 if (SATA_STATUS_REG) {
520 /* SATA_STATUS_REG is valid only when in MMIO mode */
521 u32 sata_stat = readl((void __iomem *)SATA_STATUS_REG);
522 printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n",
523 hwif->name, sata_stat, __FUNCTION__);
525 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
526 hwif->name, sata_stat);
534 * proc_reports_siimage - add siimage controller to proc
536 * @clocking: SCSC value
537 * @name: controller name
539 * Report the clocking mode of the controller and add it to
540 * the /proc interface layer
543 static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name)
545 if (!pdev_is_sata(dev)) {
546 printk(KERN_INFO "%s: BASE CLOCK ", name);
549 case 0x03: printk("DISABLED!\n"); break;
550 case 0x02: printk("== 2X PCI\n"); break;
551 case 0x01: printk("== 133\n"); break;
552 case 0x00: printk("== 100\n"); break;
558 * setup_mmio_siimage - switch an SI controller into MMIO
559 * @dev: PCI device we are configuring
562 * Attempt to put the device into mmio mode. There are some slight
563 * complications here with certain systems where the mmio bar isnt
564 * mapped so we have to be sure we can fall back to I/O.
567 static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
569 unsigned long bar5 = pci_resource_start(dev, 5);
570 unsigned long barsize = pci_resource_len(dev, 5);
572 void __iomem *ioaddr;
576 * Drop back to PIO if we can't map the mmio. Some
577 * systems seem to get terminally confused in the PCI
581 if(!request_mem_region(bar5, barsize, name))
583 printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n");
587 ioaddr = ioremap(bar5, barsize);
591 release_mem_region(bar5, barsize);
596 pci_set_drvdata(dev, (void *) ioaddr);
598 if (pdev_is_sata(dev)) {
599 /* make sure IDE0/1 interrupts are not masked */
600 irq_mask = (1 << 22) | (1 << 23);
601 tmp = readl(ioaddr + 0x48);
602 if (tmp & irq_mask) {
604 writel(tmp, ioaddr + 0x48);
605 readl(ioaddr + 0x48); /* flush */
607 writel(0, ioaddr + 0x148);
608 writel(0, ioaddr + 0x1C8);
611 writeb(0, ioaddr + 0xB4);
612 writeb(0, ioaddr + 0xF4);
613 tmpbyte = readb(ioaddr + 0x4A);
615 switch(tmpbyte & 0x30) {
617 /* In 100 MHz clocking, try and switch to 133 */
618 writeb(tmpbyte|0x10, ioaddr + 0x4A);
621 /* On 133Mhz clocking */
624 /* On PCIx2 clocking */
627 /* Clocking is disabled */
628 /* 133 clock attempt to force it on */
629 writeb(tmpbyte & ~0x20, ioaddr + 0x4A);
633 writeb( 0x72, ioaddr + 0xA1);
634 writew( 0x328A, ioaddr + 0xA2);
635 writel(0x62DD62DD, ioaddr + 0xA4);
636 writel(0x43924392, ioaddr + 0xA8);
637 writel(0x40094009, ioaddr + 0xAC);
638 writeb( 0x72, ioaddr + 0xE1);
639 writew( 0x328A, ioaddr + 0xE2);
640 writel(0x62DD62DD, ioaddr + 0xE4);
641 writel(0x43924392, ioaddr + 0xE8);
642 writel(0x40094009, ioaddr + 0xEC);
644 if (pdev_is_sata(dev)) {
645 writel(0xFFFF0000, ioaddr + 0x108);
646 writel(0xFFFF0000, ioaddr + 0x188);
647 writel(0x00680000, ioaddr + 0x148);
648 writel(0x00680000, ioaddr + 0x1C8);
651 tmpbyte = readb(ioaddr + 0x4A);
653 proc_reports_siimage(dev, (tmpbyte>>4), name);
658 * init_chipset_siimage - set up an SI device
662 * Perform the initial PCI set up for this device. Attempt to switch
663 * to 133MHz clocking if the system isn't already set up to do it.
666 static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const char *name)
672 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
674 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255);
676 pci_read_config_byte(dev, 0x8A, &BA5_EN);
677 if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) {
678 if (setup_mmio_siimage(dev, name)) {
683 pci_write_config_byte(dev, 0x80, 0x00);
684 pci_write_config_byte(dev, 0x84, 0x00);
685 pci_read_config_byte(dev, 0x8A, &tmpbyte);
686 switch(tmpbyte & 0x30) {
688 /* 133 clock attempt to force it on */
689 pci_write_config_byte(dev, 0x8A, tmpbyte|0x10);
691 /* if clocking is disabled */
692 /* 133 clock attempt to force it on */
693 pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20);
698 /* BIOS set PCI x2 clocking */
702 pci_read_config_byte(dev, 0x8A, &tmpbyte);
704 pci_write_config_byte(dev, 0xA1, 0x72);
705 pci_write_config_word(dev, 0xA2, 0x328A);
706 pci_write_config_dword(dev, 0xA4, 0x62DD62DD);
707 pci_write_config_dword(dev, 0xA8, 0x43924392);
708 pci_write_config_dword(dev, 0xAC, 0x40094009);
709 pci_write_config_byte(dev, 0xB1, 0x72);
710 pci_write_config_word(dev, 0xB2, 0x328A);
711 pci_write_config_dword(dev, 0xB4, 0x62DD62DD);
712 pci_write_config_dword(dev, 0xB8, 0x43924392);
713 pci_write_config_dword(dev, 0xBC, 0x40094009);
715 proc_reports_siimage(dev, (tmpbyte>>4), name);
720 * init_mmio_iops_siimage - set up the iops for MMIO
721 * @hwif: interface to set up
723 * The basic setup here is fairly simple, we can use standard MMIO
724 * operations. However we do have to set the taskfile register offsets
725 * by hand as there isnt a standard defined layout for them this
728 * The hardware supports buffered taskfiles and also some rather nice
729 * extended PRD tables. For better SI3112 support use the libata driver
732 static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
734 struct pci_dev *dev = hwif->pci_dev;
735 void *addr = pci_get_drvdata(dev);
736 u8 ch = hwif->channel;
741 * Fill in the basic HWIF bits
744 default_hwif_mmiops(hwif);
745 hwif->hwif_data = addr;
748 * Now set up the hw. We have to do this ourselves as
749 * the MMIO layout isnt the same as the standard port
753 memset(&hw, 0, sizeof(hw_regs_t));
755 base = (unsigned long)addr;
762 * The buffered task file doesn't have status/control
763 * so we can't currently use it sanely since we want to
766 hw.io_ports[IDE_DATA_OFFSET] = base;
767 hw.io_ports[IDE_ERROR_OFFSET] = base + 1;
768 hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
769 hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
770 hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
771 hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
772 hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
773 hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
774 hw.io_ports[IDE_CONTROL_OFFSET] = base + 10;
776 hw.io_ports[IDE_IRQ_OFFSET] = 0;
778 if (pdev_is_sata(dev)) {
779 base = (unsigned long)addr;
782 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
783 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
784 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
785 hwif->sata_misc[SATA_MISC_OFFSET] = base + 0x140;
786 hwif->sata_misc[SATA_PHY_OFFSET] = base + 0x144;
787 hwif->sata_misc[SATA_IEN_OFFSET] = base + 0x148;
790 hw.irq = hwif->pci_dev->irq;
792 memcpy(&hwif->hw, &hw, sizeof(hw));
793 memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
797 base = (unsigned long) addr;
799 hwif->dma_base = base + (ch ? 0x08 : 0x00);
804 static int is_dev_seagate_sata(ide_drive_t *drive)
806 const char *s = &drive->id->model[0];
812 len = strnlen(s, sizeof(drive->id->model));
814 if ((len > 4) && (!memcmp(s, "ST", 2))) {
815 if ((!memcmp(s + len - 2, "AS", 2)) ||
816 (!memcmp(s + len - 3, "ASL", 3))) {
817 printk(KERN_INFO "%s: applying pessimistic Seagate "
818 "errata fix\n", drive->name);
826 * siimage_fixup - post probe fixups
827 * @hwif: interface to fix up
829 * Called after drive probe we use this to decide whether the
830 * Seagate fixup must be applied. This used to be in init_iops but
831 * that can occur before we know what drives are present.
834 static void __devinit siimage_fixup(ide_hwif_t *hwif)
836 /* Try and raise the rqsize */
837 if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0]))
842 * init_iops_siimage - set up iops
843 * @hwif: interface to set up
845 * Do the basic setup for the SIIMAGE hardware interface
846 * and then do the MMIO setup if we can. This is the first
847 * look in we get for setting up the hwif so that we
848 * can get the iops right before using them.
851 static void __devinit init_iops_siimage(ide_hwif_t *hwif)
853 struct pci_dev *dev = hwif->pci_dev;
856 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
859 hwif->hwif_data = NULL;
861 /* Pessimal until we finish probing */
864 if (pci_get_drvdata(dev) == NULL)
866 init_mmio_iops_siimage(hwif);
870 * ata66_siimage - check for 80 pin cable
871 * @hwif: interface to check
873 * Check for the presence of an ATA66 capable cable on the
877 static u8 __devinit ata66_siimage(ide_hwif_t *hwif)
879 unsigned long addr = siimage_selreg(hwif, 0);
882 if (pci_get_drvdata(hwif->pci_dev) == NULL)
883 pci_read_config_byte(hwif->pci_dev, addr, &ata66);
885 ata66 = hwif->INB(addr);
887 return (ata66 & 0x01) ? ATA_CBL_PATA80 : ATA_CBL_PATA40;
891 * init_hwif_siimage - set up hwif structs
892 * @hwif: interface to set up
894 * We do the basic set up of the interface structure. The SIIMAGE
895 * requires several custom handlers so we override the default
896 * ide DMA handlers appropriately
899 static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
903 hwif->resetproc = &siimage_reset;
904 hwif->speedproc = &siimage_tune_chipset;
905 hwif->tuneproc = &sil_tuneproc;
906 hwif->reset_poll = &siimage_reset_poll;
907 hwif->pre_reset = &siimage_pre_reset;
908 hwif->udma_filter = &sil_udma_filter;
911 static int first = 1;
913 hwif->busproc = &siimage_busproc;
916 printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n");
921 hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
923 if (hwif->dma_base == 0)
926 hwif->ultra_mask = 0x7f;
927 hwif->mwdma_mask = 0x07;
932 hwif->ide_dma_check = &siimage_config_drive_for_dma;
934 if (hwif->cbl != ATA_CBL_PATA40_SHORT)
935 hwif->cbl = ata66_siimage(hwif);
938 hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
940 hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq;
944 * The BIOS often doesn't set up DMA on this controller
945 * so we always do it.
949 hwif->drives[0].autodma = hwif->autodma;
950 hwif->drives[1].autodma = hwif->autodma;
953 #define DECLARE_SII_DEV(name_str) \
956 .init_chipset = init_chipset_siimage, \
957 .init_iops = init_iops_siimage, \
958 .init_hwif = init_hwif_siimage, \
959 .fixup = siimage_fixup, \
960 .autodma = AUTODMA, \
961 .bootable = ON_BOARD, \
962 .pio_mask = ATA_PIO4, \
965 static ide_pci_device_t siimage_chipsets[] __devinitdata = {
966 /* 0 */ DECLARE_SII_DEV("SiI680"),
967 /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"),
968 /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA")
972 * siimage_init_one - pci layer discovery entry
974 * @id: ident table entry
976 * Called by the PCI code when it finds an SI680 or SI3112 controller.
977 * We then use the IDE PCI generic helper to do most of the work.
980 static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id)
982 return ide_setup_pci_device(dev, &siimage_chipsets[id->driver_data]);
985 static struct pci_device_id siimage_pci_tbl[] = {
986 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
987 #ifdef CONFIG_BLK_DEV_IDE_SATA
988 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
989 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
993 MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
995 static struct pci_driver driver = {
997 .id_table = siimage_pci_tbl,
998 .probe = siimage_init_one,
1001 static int __init siimage_ide_init(void)
1003 return ide_pci_register_driver(&driver);
1006 module_init(siimage_ide_init);
1008 MODULE_AUTHOR("Andre Hedrick, Alan Cox");
1009 MODULE_DESCRIPTION("PCI driver module for SiI IDE");
1010 MODULE_LICENSE("GPL");