2 * linux/drivers/ide/pci/siimage.c Version 1.12 Mar 10 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.
8 * May be copied or modified under the terms of the GNU General Public License
10 * Documentation for CMD680:
11 * http://gkernel.sourceforge.net/specs/sii/sii-0680a-v1.31.pdf.bz2
13 * Documentation for SiI 3112:
14 * http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2
16 * Errata and other documentation only available under NDA.
20 * If you are using Marvell SATA-IDE adapters with Maxtor drives
21 * ensure the system is set up for ATA100/UDMA5 not UDMA6.
23 * If you are using WD drives with SATA bridges you must set the
24 * drive to "Single". "Master" will hang
26 * If you have strange problems with nVidia chipset systems please
27 * see the SI support documentation and update your system BIOS
30 * The Dell DRAC4 has some interesting features including effectively hot
31 * unplugging/replugging the virtual CD interface when the DRAC is reset.
32 * This often causes drivers/ide/siimage to panic but is ok with the rather
33 * smarter code in libata.
36 #include <linux/types.h>
37 #include <linux/module.h>
38 #include <linux/pci.h>
39 #include <linux/delay.h>
40 #include <linux/hdreg.h>
41 #include <linux/ide.h>
42 #include <linux/init.h>
47 * pdev_is_sata - check if device is SATA
48 * @pdev: PCI device to check
50 * Returns true if this is a SATA controller
53 static int pdev_is_sata(struct pci_dev *pdev)
57 case PCI_DEVICE_ID_SII_3112:
58 case PCI_DEVICE_ID_SII_1210SA:
60 case PCI_DEVICE_ID_SII_680:
68 * is_sata - check if hwif is SATA
69 * @hwif: interface to check
71 * Returns true if this is a SATA controller
74 static inline int is_sata(ide_hwif_t *hwif)
76 return pdev_is_sata(hwif->pci_dev);
80 * siimage_selreg - return register base
84 * Turn a config register offset into the right address in either
85 * PCI space or MMIO space to access the control register in question
86 * Thankfully this is a configuration operation so isnt performance
90 static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
92 unsigned long base = (unsigned long)hwif->hwif_data;
95 base += (hwif->channel << 6);
97 base += (hwif->channel << 4);
102 * siimage_seldev - return register base
106 * Turn a config register offset into the right address in either
107 * PCI space or MMIO space to access the control register in question
108 * including accounting for the unit shift.
111 static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
113 ide_hwif_t *hwif = HWIF(drive);
114 unsigned long base = (unsigned long)hwif->hwif_data;
117 base += (hwif->channel << 6);
119 base += (hwif->channel << 4);
120 base |= drive->select.b.unit << drive->select.b.unit;
125 * sil_udma_filter - compute UDMA mask
128 * Compute the available UDMA speeds for the device on the interface.
130 * For the CMD680 this depends on the clocking mode (scsc), for the
131 * SI3112 SATA controller life is a bit simpler.
134 static u8 sil_udma_filter(ide_drive_t *drive)
136 ide_hwif_t *hwif = drive->hwif;
137 unsigned long base = (unsigned long) hwif->hwif_data;
138 u8 mask = 0, scsc = 0;
141 scsc = hwif->INB(base + 0x4A);
143 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
146 mask = strstr(drive->id->model, "Maxtor") ? 0x3f : 0x7f;
150 if ((scsc & 0x30) == 0x10) /* 133 */
152 else if ((scsc & 0x30) == 0x20) /* 2xPCI */
154 else if ((scsc & 0x30) == 0x00) /* 100 */
156 else /* Disabled ? */
163 * siimage_taskfile_timing - turn timing data to a mode
164 * @hwif: interface to query
166 * Read the timing data for the interface and return the
167 * mode that is being used.
170 static byte siimage_taskfile_timing (ide_hwif_t *hwif)
173 unsigned long addr = siimage_selreg(hwif, 2);
176 timing = hwif->INW(addr);
178 pci_read_config_word(hwif->pci_dev, addr, &timing);
181 case 0x10c1: return 4;
182 case 0x10c3: return 3;
184 case 0x1281: return 2;
185 case 0x2283: return 1;
192 * simmage_tuneproc - tune a drive
193 * @drive: drive to tune
194 * @mode_wanted: the target operating mode
196 * Load the timing settings for this device mode into the
197 * controller. If we are in PIO mode 3 or 4 turn on IORDY
198 * monitoring (bit 9). The TF timing is bits 31:16
201 static void siimage_tuneproc (ide_drive_t *drive, byte mode_wanted)
203 ide_hwif_t *hwif = HWIF(drive);
206 unsigned long addr = siimage_seldev(drive, 0x04);
207 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
209 /* cheat for now and use the docs */
210 switch (mode_wanted) {
235 hwif->OUTW(speedp, addr);
236 hwif->OUTW(speedt, tfaddr);
237 /* Now set up IORDY */
238 if(mode_wanted == 3 || mode_wanted == 4)
239 hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
241 hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
243 pci_write_config_word(hwif->pci_dev, addr, speedp);
244 pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
245 pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp);
247 /* Set IORDY for mode 3 or 4 */
248 if(mode_wanted == 3 || mode_wanted == 4)
250 pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
255 * config_siimage_chipset_for_pio - set drive timings
256 * @drive: drive to tune
259 * Compute the best pio mode we can for a given device. Also honour
260 * the timings for the driver when dealing with mixed devices. Some
261 * of this is ugly but its all wrapped up here
263 * The SI680 can also do VDMA - we need to start using that
265 * FIXME: we use the BIOS channel timings to avoid driving the task
266 * files too fast at the disk. We need to compute the master/slave
267 * drive PIO mode properly so that we can up the speed on a hotplug
271 static void config_siimage_chipset_for_pio (ide_drive_t *drive, byte set_speed)
273 u8 channel_timings = siimage_taskfile_timing(HWIF(drive));
274 u8 speed = 0, set_pio = ide_get_best_pio_mode(drive, 4, 5, NULL);
276 /* WARNING PIO timing mess is going to happen b/w devices, argh */
277 if ((channel_timings != set_pio) && (set_pio > channel_timings))
278 set_pio = channel_timings;
280 siimage_tuneproc(drive, set_pio);
281 speed = XFER_PIO_0 + set_pio;
283 (void) ide_config_drive_speed(drive, speed);
287 * siimage_tune_chipset - set controller timings
288 * @drive: Drive to set up
289 * @xferspeed: speed we want to achieve
291 * Tune the SII chipset for the desired mode. If we can't achieve
292 * the desired mode then tune for a lower one, but ultimately
293 * make the thing work.
296 static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
298 u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
299 u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
300 u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
302 ide_hwif_t *hwif = HWIF(drive);
303 u16 ultra = 0, multi = 0;
304 u8 mode = 0, unit = drive->select.b.unit;
305 u8 speed = ide_rate_filter(drive, xferspeed);
306 unsigned long base = (unsigned long)hwif->hwif_data;
307 u8 scsc = 0, addr_mask = ((hwif->channel) ?
308 ((hwif->mmio) ? 0xF4 : 0x84) :
309 ((hwif->mmio) ? 0xB4 : 0x80));
311 unsigned long ma = siimage_seldev(drive, 0x08);
312 unsigned long ua = siimage_seldev(drive, 0x0C);
315 scsc = hwif->INB(base + 0x4A);
316 mode = hwif->INB(base + addr_mask);
317 multi = hwif->INW(ma);
318 ultra = hwif->INW(ua);
320 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
321 pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
322 pci_read_config_word(hwif->pci_dev, ma, &multi);
323 pci_read_config_word(hwif->pci_dev, ua, &ultra);
326 mode &= ~((unit) ? 0x30 : 0x03);
328 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
330 scsc = is_sata(hwif) ? 1 : scsc;
338 siimage_tuneproc(drive, (speed - XFER_PIO_0));
339 mode |= ((unit) ? 0x10 : 0x01);
344 multi = dma[speed - XFER_MW_DMA_0];
345 mode |= ((unit) ? 0x20 : 0x02);
346 config_siimage_chipset_for_pio(drive, 0);
356 ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) :
357 (ultra5[speed - XFER_UDMA_0]));
358 mode |= ((unit) ? 0x30 : 0x03);
359 config_siimage_chipset_for_pio(drive, 0);
366 hwif->OUTB(mode, base + addr_mask);
367 hwif->OUTW(multi, ma);
368 hwif->OUTW(ultra, ua);
370 pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
371 pci_write_config_word(hwif->pci_dev, ma, multi);
372 pci_write_config_word(hwif->pci_dev, ua, ultra);
374 return (ide_config_drive_speed(drive, speed));
378 * siimage_configure_drive_for_dma - set up for DMA transfers
379 * @drive: drive we are going to set up
381 * Set up the drive for DMA, tune the controller and drive as
382 * required. If the drive isn't suitable for DMA or we hit
383 * other problems then we will drop down to PIO and set up
387 static int siimage_config_drive_for_dma (ide_drive_t *drive)
389 if (ide_tune_dma(drive))
392 if (ide_use_fast_pio(drive))
393 config_siimage_chipset_for_pio(drive, 1);
398 /* returns 1 if dma irq issued, 0 otherwise */
399 static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
401 ide_hwif_t *hwif = HWIF(drive);
403 unsigned long addr = siimage_selreg(hwif, 1);
405 /* return 1 if INTR asserted */
406 if ((hwif->INB(hwif->dma_status) & 4) == 4)
409 /* return 1 if Device INTR asserted */
410 pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat);
412 return 0; //return 1;
417 * siimage_mmio_ide_dma_test_irq - check we caused an IRQ
418 * @drive: drive we are testing
420 * Check if we caused an IDE DMA interrupt. We may also have caused
421 * SATA status interrupts, if so we clean them up and continue.
424 static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
426 ide_hwif_t *hwif = HWIF(drive);
427 unsigned long base = (unsigned long)hwif->hwif_data;
428 unsigned long addr = siimage_selreg(hwif, 0x1);
430 if (SATA_ERROR_REG) {
431 u32 ext_stat = readl((void __iomem *)(base + 0x10));
433 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
434 u32 sata_error = readl((void __iomem *)SATA_ERROR_REG);
435 writel(sata_error, (void __iomem *)SATA_ERROR_REG);
436 watchdog = (sata_error & 0x00680000) ? 1 : 0;
437 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
438 "watchdog = %d, %s\n",
439 drive->name, sata_error, watchdog,
443 watchdog = (ext_stat & 0x8000) ? 1 : 0;
447 if (!(ext_stat & 0x0404) && !watchdog)
451 /* return 1 if INTR asserted */
452 if ((readb((void __iomem *)hwif->dma_status) & 0x04) == 0x04)
455 /* return 1 if Device INTR asserted */
456 if ((readb((void __iomem *)addr) & 8) == 8)
457 return 0; //return 1;
463 * siimage_busproc - bus isolation ioctl
464 * @drive: drive to isolate/restore
465 * @state: bus state to set
467 * Used by the SII3112 to handle bus isolation. As this is a
468 * SATA controller the work required is quite limited, we
469 * just have to clean up the statistics
472 static int siimage_busproc (ide_drive_t * drive, int state)
474 ide_hwif_t *hwif = HWIF(drive);
476 unsigned long addr = siimage_selreg(hwif, 0);
479 stat_config = readl((void __iomem *)addr);
481 pci_read_config_dword(hwif->pci_dev, addr, &stat_config);
485 hwif->drives[0].failures = 0;
486 hwif->drives[1].failures = 0;
489 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
490 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
492 case BUSSTATE_TRISTATE:
493 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
494 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
499 hwif->bus_state = state;
504 * siimage_reset_poll - wait for sata reset
505 * @drive: drive we are resetting
507 * Poll the SATA phy and see whether it has come back from the dead
511 static int siimage_reset_poll (ide_drive_t *drive)
513 if (SATA_STATUS_REG) {
514 ide_hwif_t *hwif = HWIF(drive);
516 /* SATA_STATUS_REG is valid only when in MMIO mode */
517 if ((readl((void __iomem *)SATA_STATUS_REG) & 0x03) != 0x03) {
518 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
519 hwif->name, readl((void __iomem *)SATA_STATUS_REG));
520 HWGROUP(drive)->polling = 0;
530 * siimage_pre_reset - reset hook
531 * @drive: IDE device being reset
533 * For the SATA devices we need to handle recalibration/geometry
537 static void siimage_pre_reset (ide_drive_t *drive)
539 if (drive->media != ide_disk)
542 if (is_sata(HWIF(drive)))
544 drive->special.b.set_geometry = 0;
545 drive->special.b.recalibrate = 0;
550 * siimage_reset - reset a device on an siimage controller
551 * @drive: drive to reset
553 * Perform a controller level reset fo the device. For
554 * SATA we must also check the PHY.
557 static void siimage_reset (ide_drive_t *drive)
559 ide_hwif_t *hwif = HWIF(drive);
561 unsigned long addr = siimage_selreg(hwif, 0);
564 reset = hwif->INB(addr);
565 hwif->OUTB((reset|0x03), addr);
568 hwif->OUTB(reset, addr);
569 (void) hwif->INB(addr);
571 pci_read_config_byte(hwif->pci_dev, addr, &reset);
572 pci_write_config_byte(hwif->pci_dev, addr, reset|0x03);
574 pci_write_config_byte(hwif->pci_dev, addr, reset);
575 pci_read_config_byte(hwif->pci_dev, addr, &reset);
578 if (SATA_STATUS_REG) {
579 /* SATA_STATUS_REG is valid only when in MMIO mode */
580 u32 sata_stat = readl((void __iomem *)SATA_STATUS_REG);
581 printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n",
582 hwif->name, sata_stat, __FUNCTION__);
584 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
585 hwif->name, sata_stat);
593 * proc_reports_siimage - add siimage controller to proc
595 * @clocking: SCSC value
596 * @name: controller name
598 * Report the clocking mode of the controller and add it to
599 * the /proc interface layer
602 static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name)
604 if (!pdev_is_sata(dev)) {
605 printk(KERN_INFO "%s: BASE CLOCK ", name);
608 case 0x03: printk("DISABLED!\n"); break;
609 case 0x02: printk("== 2X PCI\n"); break;
610 case 0x01: printk("== 133\n"); break;
611 case 0x00: printk("== 100\n"); break;
617 * setup_mmio_siimage - switch an SI controller into MMIO
618 * @dev: PCI device we are configuring
621 * Attempt to put the device into mmio mode. There are some slight
622 * complications here with certain systems where the mmio bar isnt
623 * mapped so we have to be sure we can fall back to I/O.
626 static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
628 unsigned long bar5 = pci_resource_start(dev, 5);
629 unsigned long barsize = pci_resource_len(dev, 5);
631 void __iomem *ioaddr;
635 * Drop back to PIO if we can't map the mmio. Some
636 * systems seem to get terminally confused in the PCI
640 if(!request_mem_region(bar5, barsize, name))
642 printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n");
646 ioaddr = ioremap(bar5, barsize);
650 release_mem_region(bar5, barsize);
655 pci_set_drvdata(dev, (void *) ioaddr);
657 if (pdev_is_sata(dev)) {
658 /* make sure IDE0/1 interrupts are not masked */
659 irq_mask = (1 << 22) | (1 << 23);
660 tmp = readl(ioaddr + 0x48);
661 if (tmp & irq_mask) {
663 writel(tmp, ioaddr + 0x48);
664 readl(ioaddr + 0x48); /* flush */
666 writel(0, ioaddr + 0x148);
667 writel(0, ioaddr + 0x1C8);
670 writeb(0, ioaddr + 0xB4);
671 writeb(0, ioaddr + 0xF4);
672 tmpbyte = readb(ioaddr + 0x4A);
674 switch(tmpbyte & 0x30) {
676 /* In 100 MHz clocking, try and switch to 133 */
677 writeb(tmpbyte|0x10, ioaddr + 0x4A);
680 /* On 133Mhz clocking */
683 /* On PCIx2 clocking */
686 /* Clocking is disabled */
687 /* 133 clock attempt to force it on */
688 writeb(tmpbyte & ~0x20, ioaddr + 0x4A);
692 writeb( 0x72, ioaddr + 0xA1);
693 writew( 0x328A, ioaddr + 0xA2);
694 writel(0x62DD62DD, ioaddr + 0xA4);
695 writel(0x43924392, ioaddr + 0xA8);
696 writel(0x40094009, ioaddr + 0xAC);
697 writeb( 0x72, ioaddr + 0xE1);
698 writew( 0x328A, ioaddr + 0xE2);
699 writel(0x62DD62DD, ioaddr + 0xE4);
700 writel(0x43924392, ioaddr + 0xE8);
701 writel(0x40094009, ioaddr + 0xEC);
703 if (pdev_is_sata(dev)) {
704 writel(0xFFFF0000, ioaddr + 0x108);
705 writel(0xFFFF0000, ioaddr + 0x188);
706 writel(0x00680000, ioaddr + 0x148);
707 writel(0x00680000, ioaddr + 0x1C8);
710 tmpbyte = readb(ioaddr + 0x4A);
712 proc_reports_siimage(dev, (tmpbyte>>4), name);
717 * init_chipset_siimage - set up an SI device
721 * Perform the initial PCI set up for this device. Attempt to switch
722 * to 133MHz clocking if the system isn't already set up to do it.
725 static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const char *name)
731 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
733 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255);
735 pci_read_config_byte(dev, 0x8A, &BA5_EN);
736 if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) {
737 if (setup_mmio_siimage(dev, name)) {
742 pci_write_config_byte(dev, 0x80, 0x00);
743 pci_write_config_byte(dev, 0x84, 0x00);
744 pci_read_config_byte(dev, 0x8A, &tmpbyte);
745 switch(tmpbyte & 0x30) {
747 /* 133 clock attempt to force it on */
748 pci_write_config_byte(dev, 0x8A, tmpbyte|0x10);
750 /* if clocking is disabled */
751 /* 133 clock attempt to force it on */
752 pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20);
757 /* BIOS set PCI x2 clocking */
761 pci_read_config_byte(dev, 0x8A, &tmpbyte);
763 pci_write_config_byte(dev, 0xA1, 0x72);
764 pci_write_config_word(dev, 0xA2, 0x328A);
765 pci_write_config_dword(dev, 0xA4, 0x62DD62DD);
766 pci_write_config_dword(dev, 0xA8, 0x43924392);
767 pci_write_config_dword(dev, 0xAC, 0x40094009);
768 pci_write_config_byte(dev, 0xB1, 0x72);
769 pci_write_config_word(dev, 0xB2, 0x328A);
770 pci_write_config_dword(dev, 0xB4, 0x62DD62DD);
771 pci_write_config_dword(dev, 0xB8, 0x43924392);
772 pci_write_config_dword(dev, 0xBC, 0x40094009);
774 proc_reports_siimage(dev, (tmpbyte>>4), name);
779 * init_mmio_iops_siimage - set up the iops for MMIO
780 * @hwif: interface to set up
782 * The basic setup here is fairly simple, we can use standard MMIO
783 * operations. However we do have to set the taskfile register offsets
784 * by hand as there isnt a standard defined layout for them this
787 * The hardware supports buffered taskfiles and also some rather nice
788 * extended PRD tables. For better SI3112 support use the libata driver
791 static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
793 struct pci_dev *dev = hwif->pci_dev;
794 void *addr = pci_get_drvdata(dev);
795 u8 ch = hwif->channel;
800 * Fill in the basic HWIF bits
803 default_hwif_mmiops(hwif);
804 hwif->hwif_data = addr;
807 * Now set up the hw. We have to do this ourselves as
808 * the MMIO layout isnt the same as the standard port
812 memset(&hw, 0, sizeof(hw_regs_t));
814 base = (unsigned long)addr;
821 * The buffered task file doesn't have status/control
822 * so we can't currently use it sanely since we want to
825 hw.io_ports[IDE_DATA_OFFSET] = base;
826 hw.io_ports[IDE_ERROR_OFFSET] = base + 1;
827 hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
828 hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
829 hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
830 hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
831 hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
832 hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
833 hw.io_ports[IDE_CONTROL_OFFSET] = base + 10;
835 hw.io_ports[IDE_IRQ_OFFSET] = 0;
837 if (pdev_is_sata(dev)) {
838 base = (unsigned long)addr;
841 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
842 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
843 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
844 hwif->sata_misc[SATA_MISC_OFFSET] = base + 0x140;
845 hwif->sata_misc[SATA_PHY_OFFSET] = base + 0x144;
846 hwif->sata_misc[SATA_IEN_OFFSET] = base + 0x148;
849 hw.irq = hwif->pci_dev->irq;
851 memcpy(&hwif->hw, &hw, sizeof(hw));
852 memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
856 base = (unsigned long) addr;
858 hwif->dma_base = base + (ch ? 0x08 : 0x00);
863 static int is_dev_seagate_sata(ide_drive_t *drive)
865 const char *s = &drive->id->model[0];
871 len = strnlen(s, sizeof(drive->id->model));
873 if ((len > 4) && (!memcmp(s, "ST", 2))) {
874 if ((!memcmp(s + len - 2, "AS", 2)) ||
875 (!memcmp(s + len - 3, "ASL", 3))) {
876 printk(KERN_INFO "%s: applying pessimistic Seagate "
877 "errata fix\n", drive->name);
885 * siimage_fixup - post probe fixups
886 * @hwif: interface to fix up
888 * Called after drive probe we use this to decide whether the
889 * Seagate fixup must be applied. This used to be in init_iops but
890 * that can occur before we know what drives are present.
893 static void __devinit siimage_fixup(ide_hwif_t *hwif)
895 /* Try and raise the rqsize */
896 if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0]))
901 * init_iops_siimage - set up iops
902 * @hwif: interface to set up
904 * Do the basic setup for the SIIMAGE hardware interface
905 * and then do the MMIO setup if we can. This is the first
906 * look in we get for setting up the hwif so that we
907 * can get the iops right before using them.
910 static void __devinit init_iops_siimage(ide_hwif_t *hwif)
912 struct pci_dev *dev = hwif->pci_dev;
915 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
918 hwif->hwif_data = NULL;
920 /* Pessimal until we finish probing */
923 if (pci_get_drvdata(dev) == NULL)
925 init_mmio_iops_siimage(hwif);
929 * ata66_siimage - check for 80 pin cable
930 * @hwif: interface to check
932 * Check for the presence of an ATA66 capable cable on the
936 static unsigned int __devinit ata66_siimage(ide_hwif_t *hwif)
938 unsigned long addr = siimage_selreg(hwif, 0);
939 if (pci_get_drvdata(hwif->pci_dev) == NULL) {
941 pci_read_config_byte(hwif->pci_dev, addr, &ata66);
942 return (ata66 & 0x01) ? 1 : 0;
945 return (hwif->INB(addr) & 0x01) ? 1 : 0;
949 * init_hwif_siimage - set up hwif structs
950 * @hwif: interface to set up
952 * We do the basic set up of the interface structure. The SIIMAGE
953 * requires several custom handlers so we override the default
954 * ide DMA handlers appropriately
957 static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
961 hwif->resetproc = &siimage_reset;
962 hwif->speedproc = &siimage_tune_chipset;
963 hwif->tuneproc = &siimage_tuneproc;
964 hwif->reset_poll = &siimage_reset_poll;
965 hwif->pre_reset = &siimage_pre_reset;
966 hwif->udma_filter = &sil_udma_filter;
969 static int first = 1;
971 hwif->busproc = &siimage_busproc;
974 printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n");
978 if (!hwif->dma_base) {
979 hwif->drives[0].autotune = 1;
980 hwif->drives[1].autotune = 1;
984 hwif->ultra_mask = 0x7f;
985 hwif->mwdma_mask = 0x07;
990 hwif->ide_dma_check = &siimage_config_drive_for_dma;
991 if (!(hwif->udma_four))
992 hwif->udma_four = ata66_siimage(hwif);
995 hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
997 hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq;
1001 * The BIOS often doesn't set up DMA on this controller
1002 * so we always do it.
1006 hwif->drives[0].autodma = hwif->autodma;
1007 hwif->drives[1].autodma = hwif->autodma;
1010 #define DECLARE_SII_DEV(name_str) \
1013 .init_chipset = init_chipset_siimage, \
1014 .init_iops = init_iops_siimage, \
1015 .init_hwif = init_hwif_siimage, \
1016 .fixup = siimage_fixup, \
1018 .autodma = AUTODMA, \
1019 .bootable = ON_BOARD, \
1022 static ide_pci_device_t siimage_chipsets[] __devinitdata = {
1023 /* 0 */ DECLARE_SII_DEV("SiI680"),
1024 /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"),
1025 /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA")
1029 * siimage_init_one - pci layer discovery entry
1031 * @id: ident table entry
1033 * Called by the PCI code when it finds an SI680 or SI3112 controller.
1034 * We then use the IDE PCI generic helper to do most of the work.
1037 static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1039 return ide_setup_pci_device(dev, &siimage_chipsets[id->driver_data]);
1042 static struct pci_device_id siimage_pci_tbl[] = {
1043 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1044 #ifdef CONFIG_BLK_DEV_IDE_SATA
1045 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1046 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
1050 MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
1052 static struct pci_driver driver = {
1054 .id_table = siimage_pci_tbl,
1055 .probe = siimage_init_one,
1058 static int __init siimage_ide_init(void)
1060 return ide_pci_register_driver(&driver);
1063 module_init(siimage_ide_init);
1065 MODULE_AUTHOR("Andre Hedrick, Alan Cox");
1066 MODULE_DESCRIPTION("PCI driver module for SiI IDE");
1067 MODULE_LICENSE("GPL");