2 * linux/drivers/ide/pci/siimage.c Version 1.11 Jan 27, 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
31 #include <linux/types.h>
32 #include <linux/module.h>
33 #include <linux/pci.h>
34 #include <linux/delay.h>
35 #include <linux/hdreg.h>
36 #include <linux/ide.h>
37 #include <linux/init.h>
42 * pdev_is_sata - check if device is SATA
43 * @pdev: PCI device to check
45 * Returns true if this is a SATA controller
48 static int pdev_is_sata(struct pci_dev *pdev)
52 case PCI_DEVICE_ID_SII_3112:
53 case PCI_DEVICE_ID_SII_1210SA:
55 case PCI_DEVICE_ID_SII_680:
63 * is_sata - check if hwif is SATA
64 * @hwif: interface to check
66 * Returns true if this is a SATA controller
69 static inline int is_sata(ide_hwif_t *hwif)
71 return pdev_is_sata(hwif->pci_dev);
75 * siimage_selreg - return register base
79 * Turn a config register offset into the right address in either
80 * PCI space or MMIO space to access the control register in question
81 * Thankfully this is a configuration operation so isnt performance
85 static unsigned long siimage_selreg(ide_hwif_t *hwif, int r)
87 unsigned long base = (unsigned long)hwif->hwif_data;
90 base += (hwif->channel << 6);
92 base += (hwif->channel << 4);
97 * siimage_seldev - return register base
101 * Turn a config register offset into the right address in either
102 * PCI space or MMIO space to access the control register in question
103 * including accounting for the unit shift.
106 static inline unsigned long siimage_seldev(ide_drive_t *drive, int r)
108 ide_hwif_t *hwif = HWIF(drive);
109 unsigned long base = (unsigned long)hwif->hwif_data;
112 base += (hwif->channel << 6);
114 base += (hwif->channel << 4);
115 base |= drive->select.b.unit << drive->select.b.unit;
120 * siimage_ratemask - Compute available modes
123 * Compute the available speeds for the devices on the interface.
124 * For the CMD680 this depends on the clocking mode (scsc), for the
125 * SI3312 SATA controller life is a bit simpler. Enforce UDMA33
126 * as a limit if there is no 80pin cable present.
129 static byte siimage_ratemask (ide_drive_t *drive)
131 ide_hwif_t *hwif = HWIF(drive);
132 u8 mode = 0, scsc = 0;
133 unsigned long base = (unsigned long) hwif->hwif_data;
136 scsc = hwif->INB(base + 0x4A);
138 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
142 if(strstr(drive->id->model, "Maxtor"))
147 if ((scsc & 0x30) == 0x10) /* 133 */
149 else if ((scsc & 0x30) == 0x20) /* 2xPCI */
151 else if ((scsc & 0x30) == 0x00) /* 100 */
153 else /* Disabled ? */
156 if (!eighty_ninty_three(drive))
157 mode = min(mode, (u8)1);
162 * siimage_taskfile_timing - turn timing data to a mode
163 * @hwif: interface to query
165 * Read the timing data for the interface and return the
166 * mode that is being used.
169 static byte siimage_taskfile_timing (ide_hwif_t *hwif)
172 unsigned long addr = siimage_selreg(hwif, 2);
175 timing = hwif->INW(addr);
177 pci_read_config_word(hwif->pci_dev, addr, &timing);
180 case 0x10c1: return 4;
181 case 0x10c3: return 3;
183 case 0x1281: return 2;
184 case 0x2283: return 1;
191 * simmage_tuneproc - tune a drive
192 * @drive: drive to tune
193 * @mode_wanted: the target operating mode
195 * Load the timing settings for this device mode into the
196 * controller. If we are in PIO mode 3 or 4 turn on IORDY
197 * monitoring (bit 9). The TF timing is bits 31:16
200 static void siimage_tuneproc (ide_drive_t *drive, byte mode_wanted)
202 ide_hwif_t *hwif = HWIF(drive);
205 unsigned long addr = siimage_seldev(drive, 0x04);
206 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
208 /* cheat for now and use the docs */
209 switch (mode_wanted) {
234 hwif->OUTW(speedp, addr);
235 hwif->OUTW(speedt, tfaddr);
236 /* Now set up IORDY */
237 if(mode_wanted == 3 || mode_wanted == 4)
238 hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
240 hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
242 pci_write_config_word(hwif->pci_dev, addr, speedp);
243 pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
244 pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp);
246 /* Set IORDY for mode 3 or 4 */
247 if(mode_wanted == 3 || mode_wanted == 4)
249 pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
254 * config_siimage_chipset_for_pio - set drive timings
255 * @drive: drive to tune
258 * Compute the best pio mode we can for a given device. Also honour
259 * the timings for the driver when dealing with mixed devices. Some
260 * of this is ugly but its all wrapped up here
262 * The SI680 can also do VDMA - we need to start using that
264 * FIXME: we use the BIOS channel timings to avoid driving the task
265 * files too fast at the disk. We need to compute the master/slave
266 * drive PIO mode properly so that we can up the speed on a hotplug
270 static void config_siimage_chipset_for_pio (ide_drive_t *drive, byte set_speed)
272 u8 channel_timings = siimage_taskfile_timing(HWIF(drive));
273 u8 speed = 0, set_pio = ide_get_best_pio_mode(drive, 4, 5, NULL);
275 /* WARNING PIO timing mess is going to happen b/w devices, argh */
276 if ((channel_timings != set_pio) && (set_pio > channel_timings))
277 set_pio = channel_timings;
279 siimage_tuneproc(drive, set_pio);
280 speed = XFER_PIO_0 + set_pio;
282 (void) ide_config_drive_speed(drive, speed);
285 static void config_chipset_for_pio (ide_drive_t *drive, byte set_speed)
287 config_siimage_chipset_for_pio(drive, set_speed);
291 * siimage_tune_chipset - set controller timings
292 * @drive: Drive to set up
293 * @xferspeed: speed we want to achieve
295 * Tune the SII chipset for the desired mode. If we can't achieve
296 * the desired mode then tune for a lower one, but ultimately
297 * make the thing work.
300 static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
302 u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
303 u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
304 u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
306 ide_hwif_t *hwif = HWIF(drive);
307 u16 ultra = 0, multi = 0;
308 u8 mode = 0, unit = drive->select.b.unit;
309 u8 speed = ide_rate_filter(siimage_ratemask(drive), xferspeed);
310 unsigned long base = (unsigned long)hwif->hwif_data;
311 u8 scsc = 0, addr_mask = ((hwif->channel) ?
312 ((hwif->mmio) ? 0xF4 : 0x84) :
313 ((hwif->mmio) ? 0xB4 : 0x80));
315 unsigned long ma = siimage_seldev(drive, 0x08);
316 unsigned long ua = siimage_seldev(drive, 0x0C);
319 scsc = hwif->INB(base + 0x4A);
320 mode = hwif->INB(base + addr_mask);
321 multi = hwif->INW(ma);
322 ultra = hwif->INW(ua);
324 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
325 pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
326 pci_read_config_word(hwif->pci_dev, ma, &multi);
327 pci_read_config_word(hwif->pci_dev, ua, &ultra);
330 mode &= ~((unit) ? 0x30 : 0x03);
332 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
334 scsc = is_sata(hwif) ? 1 : scsc;
342 siimage_tuneproc(drive, (speed - XFER_PIO_0));
343 mode |= ((unit) ? 0x10 : 0x01);
348 multi = dma[speed - XFER_MW_DMA_0];
349 mode |= ((unit) ? 0x20 : 0x02);
350 config_siimage_chipset_for_pio(drive, 0);
360 ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) :
361 (ultra5[speed - XFER_UDMA_0]));
362 mode |= ((unit) ? 0x30 : 0x03);
363 config_siimage_chipset_for_pio(drive, 0);
370 hwif->OUTB(mode, base + addr_mask);
371 hwif->OUTW(multi, ma);
372 hwif->OUTW(ultra, ua);
374 pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
375 pci_write_config_word(hwif->pci_dev, ma, multi);
376 pci_write_config_word(hwif->pci_dev, ua, ultra);
378 return (ide_config_drive_speed(drive, speed));
382 * config_chipset_for_dma - configure for DMA
383 * @drive: drive to configure
385 * Called by the IDE layer when it wants the timings set up.
386 * For the CMD680 we also need to set up the PIO timings and
390 static int config_chipset_for_dma (ide_drive_t *drive)
392 u8 speed = ide_dma_speed(drive, siimage_ratemask(drive));
394 config_chipset_for_pio(drive, !speed);
399 if (siimage_tune_chipset(drive, speed))
402 return ide_dma_enable(drive);
406 * siimage_configure_drive_for_dma - set up for DMA transfers
407 * @drive: drive we are going to set up
409 * Set up the drive for DMA, tune the controller and drive as
410 * required. If the drive isn't suitable for DMA or we hit
411 * other problems then we will drop down to PIO and set up
415 static int siimage_config_drive_for_dma (ide_drive_t *drive)
417 if (ide_use_dma(drive) && config_chipset_for_dma(drive))
420 if (ide_use_fast_pio(drive))
421 config_chipset_for_pio(drive, 1);
426 /* returns 1 if dma irq issued, 0 otherwise */
427 static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
429 ide_hwif_t *hwif = HWIF(drive);
431 unsigned long addr = siimage_selreg(hwif, 1);
433 /* return 1 if INTR asserted */
434 if ((hwif->INB(hwif->dma_status) & 4) == 4)
437 /* return 1 if Device INTR asserted */
438 pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat);
440 return 0; //return 1;
445 * siimage_mmio_ide_dma_test_irq - check we caused an IRQ
446 * @drive: drive we are testing
448 * Check if we caused an IDE DMA interrupt. We may also have caused
449 * SATA status interrupts, if so we clean them up and continue.
452 static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
454 ide_hwif_t *hwif = HWIF(drive);
455 unsigned long base = (unsigned long)hwif->hwif_data;
456 unsigned long addr = siimage_selreg(hwif, 0x1);
458 if (SATA_ERROR_REG) {
459 u32 ext_stat = readl((void __iomem *)(base + 0x10));
461 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
462 u32 sata_error = readl((void __iomem *)SATA_ERROR_REG);
463 writel(sata_error, (void __iomem *)SATA_ERROR_REG);
464 watchdog = (sata_error & 0x00680000) ? 1 : 0;
465 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
466 "watchdog = %d, %s\n",
467 drive->name, sata_error, watchdog,
471 watchdog = (ext_stat & 0x8000) ? 1 : 0;
475 if (!(ext_stat & 0x0404) && !watchdog)
479 /* return 1 if INTR asserted */
480 if ((readb((void __iomem *)hwif->dma_status) & 0x04) == 0x04)
483 /* return 1 if Device INTR asserted */
484 if ((readb((void __iomem *)addr) & 8) == 8)
485 return 0; //return 1;
491 * siimage_busproc - bus isolation ioctl
492 * @drive: drive to isolate/restore
493 * @state: bus state to set
495 * Used by the SII3112 to handle bus isolation. As this is a
496 * SATA controller the work required is quite limited, we
497 * just have to clean up the statistics
500 static int siimage_busproc (ide_drive_t * drive, int state)
502 ide_hwif_t *hwif = HWIF(drive);
504 unsigned long addr = siimage_selreg(hwif, 0);
507 stat_config = readl((void __iomem *)addr);
509 pci_read_config_dword(hwif->pci_dev, addr, &stat_config);
513 hwif->drives[0].failures = 0;
514 hwif->drives[1].failures = 0;
517 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
518 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
520 case BUSSTATE_TRISTATE:
521 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
522 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
527 hwif->bus_state = state;
532 * siimage_reset_poll - wait for sata reset
533 * @drive: drive we are resetting
535 * Poll the SATA phy and see whether it has come back from the dead
539 static int siimage_reset_poll (ide_drive_t *drive)
541 if (SATA_STATUS_REG) {
542 ide_hwif_t *hwif = HWIF(drive);
544 /* SATA_STATUS_REG is valid only when in MMIO mode */
545 if ((readl((void __iomem *)SATA_STATUS_REG) & 0x03) != 0x03) {
546 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
547 hwif->name, readl((void __iomem *)SATA_STATUS_REG));
548 HWGROUP(drive)->polling = 0;
558 * siimage_pre_reset - reset hook
559 * @drive: IDE device being reset
561 * For the SATA devices we need to handle recalibration/geometry
565 static void siimage_pre_reset (ide_drive_t *drive)
567 if (drive->media != ide_disk)
570 if (is_sata(HWIF(drive)))
572 drive->special.b.set_geometry = 0;
573 drive->special.b.recalibrate = 0;
578 * siimage_reset - reset a device on an siimage controller
579 * @drive: drive to reset
581 * Perform a controller level reset fo the device. For
582 * SATA we must also check the PHY.
585 static void siimage_reset (ide_drive_t *drive)
587 ide_hwif_t *hwif = HWIF(drive);
589 unsigned long addr = siimage_selreg(hwif, 0);
592 reset = hwif->INB(addr);
593 hwif->OUTB((reset|0x03), addr);
596 hwif->OUTB(reset, addr);
597 (void) hwif->INB(addr);
599 pci_read_config_byte(hwif->pci_dev, addr, &reset);
600 pci_write_config_byte(hwif->pci_dev, addr, reset|0x03);
602 pci_write_config_byte(hwif->pci_dev, addr, reset);
603 pci_read_config_byte(hwif->pci_dev, addr, &reset);
606 if (SATA_STATUS_REG) {
607 /* SATA_STATUS_REG is valid only when in MMIO mode */
608 u32 sata_stat = readl((void __iomem *)SATA_STATUS_REG);
609 printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n",
610 hwif->name, sata_stat, __FUNCTION__);
612 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
613 hwif->name, sata_stat);
621 * proc_reports_siimage - add siimage controller to proc
623 * @clocking: SCSC value
624 * @name: controller name
626 * Report the clocking mode of the controller and add it to
627 * the /proc interface layer
630 static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name)
632 if (!pdev_is_sata(dev)) {
633 printk(KERN_INFO "%s: BASE CLOCK ", name);
636 case 0x03: printk("DISABLED!\n"); break;
637 case 0x02: printk("== 2X PCI\n"); break;
638 case 0x01: printk("== 133\n"); break;
639 case 0x00: printk("== 100\n"); break;
645 * setup_mmio_siimage - switch an SI controller into MMIO
646 * @dev: PCI device we are configuring
649 * Attempt to put the device into mmio mode. There are some slight
650 * complications here with certain systems where the mmio bar isnt
651 * mapped so we have to be sure we can fall back to I/O.
654 static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
656 unsigned long bar5 = pci_resource_start(dev, 5);
657 unsigned long barsize = pci_resource_len(dev, 5);
659 void __iomem *ioaddr;
663 * Drop back to PIO if we can't map the mmio. Some
664 * systems seem to get terminally confused in the PCI
668 if(!request_mem_region(bar5, barsize, name))
670 printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n");
674 ioaddr = ioremap(bar5, barsize);
678 release_mem_region(bar5, barsize);
683 pci_set_drvdata(dev, (void *) ioaddr);
685 if (pdev_is_sata(dev)) {
686 /* make sure IDE0/1 interrupts are not masked */
687 irq_mask = (1 << 22) | (1 << 23);
688 tmp = readl(ioaddr + 0x48);
689 if (tmp & irq_mask) {
691 writel(tmp, ioaddr + 0x48);
692 readl(ioaddr + 0x48); /* flush */
694 writel(0, ioaddr + 0x148);
695 writel(0, ioaddr + 0x1C8);
698 writeb(0, ioaddr + 0xB4);
699 writeb(0, ioaddr + 0xF4);
700 tmpbyte = readb(ioaddr + 0x4A);
702 switch(tmpbyte & 0x30) {
704 /* In 100 MHz clocking, try and switch to 133 */
705 writeb(tmpbyte|0x10, ioaddr + 0x4A);
708 /* On 133Mhz clocking */
711 /* On PCIx2 clocking */
714 /* Clocking is disabled */
715 /* 133 clock attempt to force it on */
716 writeb(tmpbyte & ~0x20, ioaddr + 0x4A);
720 writeb( 0x72, ioaddr + 0xA1);
721 writew( 0x328A, ioaddr + 0xA2);
722 writel(0x62DD62DD, ioaddr + 0xA4);
723 writel(0x43924392, ioaddr + 0xA8);
724 writel(0x40094009, ioaddr + 0xAC);
725 writeb( 0x72, ioaddr + 0xE1);
726 writew( 0x328A, ioaddr + 0xE2);
727 writel(0x62DD62DD, ioaddr + 0xE4);
728 writel(0x43924392, ioaddr + 0xE8);
729 writel(0x40094009, ioaddr + 0xEC);
731 if (pdev_is_sata(dev)) {
732 writel(0xFFFF0000, ioaddr + 0x108);
733 writel(0xFFFF0000, ioaddr + 0x188);
734 writel(0x00680000, ioaddr + 0x148);
735 writel(0x00680000, ioaddr + 0x1C8);
738 tmpbyte = readb(ioaddr + 0x4A);
740 proc_reports_siimage(dev, (tmpbyte>>4), name);
745 * init_chipset_siimage - set up an SI device
749 * Perform the initial PCI set up for this device. Attempt to switch
750 * to 133MHz clocking if the system isn't already set up to do it.
753 static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const char *name)
759 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
761 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255);
763 pci_read_config_byte(dev, 0x8A, &BA5_EN);
764 if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) {
765 if (setup_mmio_siimage(dev, name)) {
770 pci_write_config_byte(dev, 0x80, 0x00);
771 pci_write_config_byte(dev, 0x84, 0x00);
772 pci_read_config_byte(dev, 0x8A, &tmpbyte);
773 switch(tmpbyte & 0x30) {
775 /* 133 clock attempt to force it on */
776 pci_write_config_byte(dev, 0x8A, tmpbyte|0x10);
778 /* if clocking is disabled */
779 /* 133 clock attempt to force it on */
780 pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20);
785 /* BIOS set PCI x2 clocking */
789 pci_read_config_byte(dev, 0x8A, &tmpbyte);
791 pci_write_config_byte(dev, 0xA1, 0x72);
792 pci_write_config_word(dev, 0xA2, 0x328A);
793 pci_write_config_dword(dev, 0xA4, 0x62DD62DD);
794 pci_write_config_dword(dev, 0xA8, 0x43924392);
795 pci_write_config_dword(dev, 0xAC, 0x40094009);
796 pci_write_config_byte(dev, 0xB1, 0x72);
797 pci_write_config_word(dev, 0xB2, 0x328A);
798 pci_write_config_dword(dev, 0xB4, 0x62DD62DD);
799 pci_write_config_dword(dev, 0xB8, 0x43924392);
800 pci_write_config_dword(dev, 0xBC, 0x40094009);
802 proc_reports_siimage(dev, (tmpbyte>>4), name);
807 * init_mmio_iops_siimage - set up the iops for MMIO
808 * @hwif: interface to set up
810 * The basic setup here is fairly simple, we can use standard MMIO
811 * operations. However we do have to set the taskfile register offsets
812 * by hand as there isnt a standard defined layout for them this
815 * The hardware supports buffered taskfiles and also some rather nice
816 * extended PRD tables. For better SI3112 support use the libata driver
819 static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
821 struct pci_dev *dev = hwif->pci_dev;
822 void *addr = pci_get_drvdata(dev);
823 u8 ch = hwif->channel;
828 * Fill in the basic HWIF bits
831 default_hwif_mmiops(hwif);
832 hwif->hwif_data = addr;
835 * Now set up the hw. We have to do this ourselves as
836 * the MMIO layout isnt the same as the the standard port
840 memset(&hw, 0, sizeof(hw_regs_t));
842 base = (unsigned long)addr;
849 * The buffered task file doesn't have status/control
850 * so we can't currently use it sanely since we want to
853 hw.io_ports[IDE_DATA_OFFSET] = base;
854 hw.io_ports[IDE_ERROR_OFFSET] = base + 1;
855 hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
856 hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
857 hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
858 hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
859 hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
860 hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
861 hw.io_ports[IDE_CONTROL_OFFSET] = base + 10;
863 hw.io_ports[IDE_IRQ_OFFSET] = 0;
865 if (pdev_is_sata(dev)) {
866 base = (unsigned long)addr;
869 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
870 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
871 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
872 hwif->sata_misc[SATA_MISC_OFFSET] = base + 0x140;
873 hwif->sata_misc[SATA_PHY_OFFSET] = base + 0x144;
874 hwif->sata_misc[SATA_IEN_OFFSET] = base + 0x148;
877 hw.irq = hwif->pci_dev->irq;
879 memcpy(&hwif->hw, &hw, sizeof(hw));
880 memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
884 base = (unsigned long) addr;
886 hwif->dma_base = base + (ch ? 0x08 : 0x00);
891 static int is_dev_seagate_sata(ide_drive_t *drive)
893 const char *s = &drive->id->model[0];
899 len = strnlen(s, sizeof(drive->id->model));
901 if ((len > 4) && (!memcmp(s, "ST", 2))) {
902 if ((!memcmp(s + len - 2, "AS", 2)) ||
903 (!memcmp(s + len - 3, "ASL", 3))) {
904 printk(KERN_INFO "%s: applying pessimistic Seagate "
905 "errata fix\n", drive->name);
913 * siimage_fixup - post probe fixups
914 * @hwif: interface to fix up
916 * Called after drive probe we use this to decide whether the
917 * Seagate fixup must be applied. This used to be in init_iops but
918 * that can occur before we know what drives are present.
921 static void __devinit siimage_fixup(ide_hwif_t *hwif)
923 /* Try and raise the rqsize */
924 if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0]))
929 * init_iops_siimage - set up iops
930 * @hwif: interface to set up
932 * Do the basic setup for the SIIMAGE hardware interface
933 * and then do the MMIO setup if we can. This is the first
934 * look in we get for setting up the hwif so that we
935 * can get the iops right before using them.
938 static void __devinit init_iops_siimage(ide_hwif_t *hwif)
940 struct pci_dev *dev = hwif->pci_dev;
943 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
946 hwif->hwif_data = NULL;
948 /* Pessimal until we finish probing */
951 if (pci_get_drvdata(dev) == NULL)
953 init_mmio_iops_siimage(hwif);
957 * ata66_siimage - check for 80 pin cable
958 * @hwif: interface to check
960 * Check for the presence of an ATA66 capable cable on the
964 static unsigned int __devinit ata66_siimage(ide_hwif_t *hwif)
966 unsigned long addr = siimage_selreg(hwif, 0);
967 if (pci_get_drvdata(hwif->pci_dev) == NULL) {
969 pci_read_config_byte(hwif->pci_dev, addr, &ata66);
970 return (ata66 & 0x01) ? 1 : 0;
973 return (hwif->INB(addr) & 0x01) ? 1 : 0;
977 * init_hwif_siimage - set up hwif structs
978 * @hwif: interface to set up
980 * We do the basic set up of the interface structure. The SIIMAGE
981 * requires several custom handlers so we override the default
982 * ide DMA handlers appropriately
985 static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
989 hwif->resetproc = &siimage_reset;
990 hwif->speedproc = &siimage_tune_chipset;
991 hwif->tuneproc = &siimage_tuneproc;
992 hwif->reset_poll = &siimage_reset_poll;
993 hwif->pre_reset = &siimage_pre_reset;
996 static int first = 1;
998 hwif->busproc = &siimage_busproc;
1001 printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n");
1005 if (!hwif->dma_base) {
1006 hwif->drives[0].autotune = 1;
1007 hwif->drives[1].autotune = 1;
1011 hwif->ultra_mask = 0x7f;
1012 hwif->mwdma_mask = 0x07;
1013 hwif->swdma_mask = 0x07;
1016 hwif->atapi_dma = 1;
1018 hwif->ide_dma_check = &siimage_config_drive_for_dma;
1019 if (!(hwif->udma_four))
1020 hwif->udma_four = ata66_siimage(hwif);
1023 hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
1025 hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq;
1029 * The BIOS often doesn't set up DMA on this controller
1030 * so we always do it.
1034 hwif->drives[0].autodma = hwif->autodma;
1035 hwif->drives[1].autodma = hwif->autodma;
1038 #define DECLARE_SII_DEV(name_str) \
1041 .init_chipset = init_chipset_siimage, \
1042 .init_iops = init_iops_siimage, \
1043 .init_hwif = init_hwif_siimage, \
1044 .fixup = siimage_fixup, \
1046 .autodma = AUTODMA, \
1047 .bootable = ON_BOARD, \
1050 static ide_pci_device_t siimage_chipsets[] __devinitdata = {
1051 /* 0 */ DECLARE_SII_DEV("SiI680"),
1052 /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"),
1053 /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA")
1057 * siimage_init_one - pci layer discovery entry
1059 * @id: ident table entry
1061 * Called by the PCI code when it finds an SI680 or SI3112 controller.
1062 * We then use the IDE PCI generic helper to do most of the work.
1065 static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1067 return ide_setup_pci_device(dev, &siimage_chipsets[id->driver_data]);
1070 static struct pci_device_id siimage_pci_tbl[] = {
1071 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1072 #ifdef CONFIG_BLK_DEV_IDE_SATA
1073 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1074 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
1078 MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
1080 static struct pci_driver driver = {
1082 .id_table = siimage_pci_tbl,
1083 .probe = siimage_init_one,
1086 static int __init siimage_ide_init(void)
1088 return ide_pci_register_driver(&driver);
1091 module_init(siimage_ide_init);
1093 MODULE_AUTHOR("Andre Hedrick, Alan Cox");
1094 MODULE_DESCRIPTION("PCI driver module for SiI IDE");
1095 MODULE_LICENSE("GPL");