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
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 * siimage_ratemask - Compute available modes
128 * Compute the available speeds for the devices on the interface.
129 * For the CMD680 this depends on the clocking mode (scsc), for the
130 * SI3312 SATA controller life is a bit simpler. Enforce UDMA33
131 * as a limit if there is no 80pin cable present.
134 static byte siimage_ratemask (ide_drive_t *drive)
136 ide_hwif_t *hwif = HWIF(drive);
137 u8 mode = 0, scsc = 0;
138 unsigned long base = (unsigned long) hwif->hwif_data;
141 scsc = hwif->INB(base + 0x4A);
143 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
147 if(strstr(drive->id->model, "Maxtor"))
152 if ((scsc & 0x30) == 0x10) /* 133 */
154 else if ((scsc & 0x30) == 0x20) /* 2xPCI */
156 else if ((scsc & 0x30) == 0x00) /* 100 */
158 else /* Disabled ? */
161 if (!eighty_ninty_three(drive))
162 mode = min(mode, (u8)1);
167 * siimage_taskfile_timing - turn timing data to a mode
168 * @hwif: interface to query
170 * Read the timing data for the interface and return the
171 * mode that is being used.
174 static byte siimage_taskfile_timing (ide_hwif_t *hwif)
177 unsigned long addr = siimage_selreg(hwif, 2);
180 timing = hwif->INW(addr);
182 pci_read_config_word(hwif->pci_dev, addr, &timing);
185 case 0x10c1: return 4;
186 case 0x10c3: return 3;
188 case 0x1281: return 2;
189 case 0x2283: return 1;
196 * simmage_tuneproc - tune a drive
197 * @drive: drive to tune
198 * @mode_wanted: the target operating mode
200 * Load the timing settings for this device mode into the
201 * controller. If we are in PIO mode 3 or 4 turn on IORDY
202 * monitoring (bit 9). The TF timing is bits 31:16
205 static void siimage_tuneproc (ide_drive_t *drive, byte mode_wanted)
207 ide_hwif_t *hwif = HWIF(drive);
210 unsigned long addr = siimage_seldev(drive, 0x04);
211 unsigned long tfaddr = siimage_selreg(hwif, 0x02);
213 /* cheat for now and use the docs */
214 switch (mode_wanted) {
239 hwif->OUTW(speedp, addr);
240 hwif->OUTW(speedt, tfaddr);
241 /* Now set up IORDY */
242 if(mode_wanted == 3 || mode_wanted == 4)
243 hwif->OUTW(hwif->INW(tfaddr-2)|0x200, tfaddr-2);
245 hwif->OUTW(hwif->INW(tfaddr-2)&~0x200, tfaddr-2);
247 pci_write_config_word(hwif->pci_dev, addr, speedp);
248 pci_write_config_word(hwif->pci_dev, tfaddr, speedt);
249 pci_read_config_word(hwif->pci_dev, tfaddr-2, &speedp);
251 /* Set IORDY for mode 3 or 4 */
252 if(mode_wanted == 3 || mode_wanted == 4)
254 pci_write_config_word(hwif->pci_dev, tfaddr-2, speedp);
259 * config_siimage_chipset_for_pio - set drive timings
260 * @drive: drive to tune
263 * Compute the best pio mode we can for a given device. Also honour
264 * the timings for the driver when dealing with mixed devices. Some
265 * of this is ugly but its all wrapped up here
267 * The SI680 can also do VDMA - we need to start using that
269 * FIXME: we use the BIOS channel timings to avoid driving the task
270 * files too fast at the disk. We need to compute the master/slave
271 * drive PIO mode properly so that we can up the speed on a hotplug
275 static void config_siimage_chipset_for_pio (ide_drive_t *drive, byte set_speed)
277 u8 channel_timings = siimage_taskfile_timing(HWIF(drive));
278 u8 speed = 0, set_pio = ide_get_best_pio_mode(drive, 4, 5, NULL);
280 /* WARNING PIO timing mess is going to happen b/w devices, argh */
281 if ((channel_timings != set_pio) && (set_pio > channel_timings))
282 set_pio = channel_timings;
284 siimage_tuneproc(drive, set_pio);
285 speed = XFER_PIO_0 + set_pio;
287 (void) ide_config_drive_speed(drive, speed);
290 static void config_chipset_for_pio (ide_drive_t *drive, byte set_speed)
292 config_siimage_chipset_for_pio(drive, set_speed);
296 * siimage_tune_chipset - set controller timings
297 * @drive: Drive to set up
298 * @xferspeed: speed we want to achieve
300 * Tune the SII chipset for the desired mode. If we can't achieve
301 * the desired mode then tune for a lower one, but ultimately
302 * make the thing work.
305 static int siimage_tune_chipset (ide_drive_t *drive, byte xferspeed)
307 u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 };
308 u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 };
309 u16 dma[] = { 0x2208, 0x10C2, 0x10C1 };
311 ide_hwif_t *hwif = HWIF(drive);
312 u16 ultra = 0, multi = 0;
313 u8 mode = 0, unit = drive->select.b.unit;
314 u8 speed = ide_rate_filter(siimage_ratemask(drive), xferspeed);
315 unsigned long base = (unsigned long)hwif->hwif_data;
316 u8 scsc = 0, addr_mask = ((hwif->channel) ?
317 ((hwif->mmio) ? 0xF4 : 0x84) :
318 ((hwif->mmio) ? 0xB4 : 0x80));
320 unsigned long ma = siimage_seldev(drive, 0x08);
321 unsigned long ua = siimage_seldev(drive, 0x0C);
324 scsc = hwif->INB(base + 0x4A);
325 mode = hwif->INB(base + addr_mask);
326 multi = hwif->INW(ma);
327 ultra = hwif->INW(ua);
329 pci_read_config_byte(hwif->pci_dev, 0x8A, &scsc);
330 pci_read_config_byte(hwif->pci_dev, addr_mask, &mode);
331 pci_read_config_word(hwif->pci_dev, ma, &multi);
332 pci_read_config_word(hwif->pci_dev, ua, &ultra);
335 mode &= ~((unit) ? 0x30 : 0x03);
337 scsc = ((scsc & 0x30) == 0x00) ? 0 : 1;
339 scsc = is_sata(hwif) ? 1 : scsc;
347 siimage_tuneproc(drive, (speed - XFER_PIO_0));
348 mode |= ((unit) ? 0x10 : 0x01);
353 multi = dma[speed - XFER_MW_DMA_0];
354 mode |= ((unit) ? 0x20 : 0x02);
355 config_siimage_chipset_for_pio(drive, 0);
365 ultra |= ((scsc) ? (ultra6[speed - XFER_UDMA_0]) :
366 (ultra5[speed - XFER_UDMA_0]));
367 mode |= ((unit) ? 0x30 : 0x03);
368 config_siimage_chipset_for_pio(drive, 0);
375 hwif->OUTB(mode, base + addr_mask);
376 hwif->OUTW(multi, ma);
377 hwif->OUTW(ultra, ua);
379 pci_write_config_byte(hwif->pci_dev, addr_mask, mode);
380 pci_write_config_word(hwif->pci_dev, ma, multi);
381 pci_write_config_word(hwif->pci_dev, ua, ultra);
383 return (ide_config_drive_speed(drive, speed));
387 * config_chipset_for_dma - configure for DMA
388 * @drive: drive to configure
390 * Called by the IDE layer when it wants the timings set up.
391 * For the CMD680 we also need to set up the PIO timings and
395 static int config_chipset_for_dma (ide_drive_t *drive)
397 u8 speed = ide_dma_speed(drive, siimage_ratemask(drive));
399 config_chipset_for_pio(drive, !speed);
404 if (siimage_tune_chipset(drive, speed))
407 return ide_dma_enable(drive);
411 * siimage_configure_drive_for_dma - set up for DMA transfers
412 * @drive: drive we are going to set up
414 * Set up the drive for DMA, tune the controller and drive as
415 * required. If the drive isn't suitable for DMA or we hit
416 * other problems then we will drop down to PIO and set up
420 static int siimage_config_drive_for_dma (ide_drive_t *drive)
422 if (ide_use_dma(drive) && config_chipset_for_dma(drive))
425 if (ide_use_fast_pio(drive))
426 config_chipset_for_pio(drive, 1);
431 /* returns 1 if dma irq issued, 0 otherwise */
432 static int siimage_io_ide_dma_test_irq (ide_drive_t *drive)
434 ide_hwif_t *hwif = HWIF(drive);
436 unsigned long addr = siimage_selreg(hwif, 1);
438 /* return 1 if INTR asserted */
439 if ((hwif->INB(hwif->dma_status) & 4) == 4)
442 /* return 1 if Device INTR asserted */
443 pci_read_config_byte(hwif->pci_dev, addr, &dma_altstat);
445 return 0; //return 1;
450 * siimage_mmio_ide_dma_test_irq - check we caused an IRQ
451 * @drive: drive we are testing
453 * Check if we caused an IDE DMA interrupt. We may also have caused
454 * SATA status interrupts, if so we clean them up and continue.
457 static int siimage_mmio_ide_dma_test_irq (ide_drive_t *drive)
459 ide_hwif_t *hwif = HWIF(drive);
460 unsigned long base = (unsigned long)hwif->hwif_data;
461 unsigned long addr = siimage_selreg(hwif, 0x1);
463 if (SATA_ERROR_REG) {
464 u32 ext_stat = readl((void __iomem *)(base + 0x10));
466 if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) {
467 u32 sata_error = readl((void __iomem *)SATA_ERROR_REG);
468 writel(sata_error, (void __iomem *)SATA_ERROR_REG);
469 watchdog = (sata_error & 0x00680000) ? 1 : 0;
470 printk(KERN_WARNING "%s: sata_error = 0x%08x, "
471 "watchdog = %d, %s\n",
472 drive->name, sata_error, watchdog,
476 watchdog = (ext_stat & 0x8000) ? 1 : 0;
480 if (!(ext_stat & 0x0404) && !watchdog)
484 /* return 1 if INTR asserted */
485 if ((readb((void __iomem *)hwif->dma_status) & 0x04) == 0x04)
488 /* return 1 if Device INTR asserted */
489 if ((readb((void __iomem *)addr) & 8) == 8)
490 return 0; //return 1;
496 * siimage_busproc - bus isolation ioctl
497 * @drive: drive to isolate/restore
498 * @state: bus state to set
500 * Used by the SII3112 to handle bus isolation. As this is a
501 * SATA controller the work required is quite limited, we
502 * just have to clean up the statistics
505 static int siimage_busproc (ide_drive_t * drive, int state)
507 ide_hwif_t *hwif = HWIF(drive);
509 unsigned long addr = siimage_selreg(hwif, 0);
512 stat_config = readl((void __iomem *)addr);
514 pci_read_config_dword(hwif->pci_dev, addr, &stat_config);
518 hwif->drives[0].failures = 0;
519 hwif->drives[1].failures = 0;
522 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
523 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
525 case BUSSTATE_TRISTATE:
526 hwif->drives[0].failures = hwif->drives[0].max_failures + 1;
527 hwif->drives[1].failures = hwif->drives[1].max_failures + 1;
532 hwif->bus_state = state;
537 * siimage_reset_poll - wait for sata reset
538 * @drive: drive we are resetting
540 * Poll the SATA phy and see whether it has come back from the dead
544 static int siimage_reset_poll (ide_drive_t *drive)
546 if (SATA_STATUS_REG) {
547 ide_hwif_t *hwif = HWIF(drive);
549 /* SATA_STATUS_REG is valid only when in MMIO mode */
550 if ((readl((void __iomem *)SATA_STATUS_REG) & 0x03) != 0x03) {
551 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
552 hwif->name, readl((void __iomem *)SATA_STATUS_REG));
553 HWGROUP(drive)->polling = 0;
563 * siimage_pre_reset - reset hook
564 * @drive: IDE device being reset
566 * For the SATA devices we need to handle recalibration/geometry
570 static void siimage_pre_reset (ide_drive_t *drive)
572 if (drive->media != ide_disk)
575 if (is_sata(HWIF(drive)))
577 drive->special.b.set_geometry = 0;
578 drive->special.b.recalibrate = 0;
583 * siimage_reset - reset a device on an siimage controller
584 * @drive: drive to reset
586 * Perform a controller level reset fo the device. For
587 * SATA we must also check the PHY.
590 static void siimage_reset (ide_drive_t *drive)
592 ide_hwif_t *hwif = HWIF(drive);
594 unsigned long addr = siimage_selreg(hwif, 0);
597 reset = hwif->INB(addr);
598 hwif->OUTB((reset|0x03), addr);
601 hwif->OUTB(reset, addr);
602 (void) hwif->INB(addr);
604 pci_read_config_byte(hwif->pci_dev, addr, &reset);
605 pci_write_config_byte(hwif->pci_dev, addr, reset|0x03);
607 pci_write_config_byte(hwif->pci_dev, addr, reset);
608 pci_read_config_byte(hwif->pci_dev, addr, &reset);
611 if (SATA_STATUS_REG) {
612 /* SATA_STATUS_REG is valid only when in MMIO mode */
613 u32 sata_stat = readl((void __iomem *)SATA_STATUS_REG);
614 printk(KERN_WARNING "%s: reset phy, status=0x%08x, %s\n",
615 hwif->name, sata_stat, __FUNCTION__);
617 printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n",
618 hwif->name, sata_stat);
626 * proc_reports_siimage - add siimage controller to proc
628 * @clocking: SCSC value
629 * @name: controller name
631 * Report the clocking mode of the controller and add it to
632 * the /proc interface layer
635 static void proc_reports_siimage (struct pci_dev *dev, u8 clocking, const char *name)
637 if (!pdev_is_sata(dev)) {
638 printk(KERN_INFO "%s: BASE CLOCK ", name);
641 case 0x03: printk("DISABLED!\n"); break;
642 case 0x02: printk("== 2X PCI\n"); break;
643 case 0x01: printk("== 133\n"); break;
644 case 0x00: printk("== 100\n"); break;
650 * setup_mmio_siimage - switch an SI controller into MMIO
651 * @dev: PCI device we are configuring
654 * Attempt to put the device into mmio mode. There are some slight
655 * complications here with certain systems where the mmio bar isnt
656 * mapped so we have to be sure we can fall back to I/O.
659 static unsigned int setup_mmio_siimage (struct pci_dev *dev, const char *name)
661 unsigned long bar5 = pci_resource_start(dev, 5);
662 unsigned long barsize = pci_resource_len(dev, 5);
664 void __iomem *ioaddr;
668 * Drop back to PIO if we can't map the mmio. Some
669 * systems seem to get terminally confused in the PCI
673 if(!request_mem_region(bar5, barsize, name))
675 printk(KERN_WARNING "siimage: IDE controller MMIO ports not available.\n");
679 ioaddr = ioremap(bar5, barsize);
683 release_mem_region(bar5, barsize);
688 pci_set_drvdata(dev, (void *) ioaddr);
690 if (pdev_is_sata(dev)) {
691 /* make sure IDE0/1 interrupts are not masked */
692 irq_mask = (1 << 22) | (1 << 23);
693 tmp = readl(ioaddr + 0x48);
694 if (tmp & irq_mask) {
696 writel(tmp, ioaddr + 0x48);
697 readl(ioaddr + 0x48); /* flush */
699 writel(0, ioaddr + 0x148);
700 writel(0, ioaddr + 0x1C8);
703 writeb(0, ioaddr + 0xB4);
704 writeb(0, ioaddr + 0xF4);
705 tmpbyte = readb(ioaddr + 0x4A);
707 switch(tmpbyte & 0x30) {
709 /* In 100 MHz clocking, try and switch to 133 */
710 writeb(tmpbyte|0x10, ioaddr + 0x4A);
713 /* On 133Mhz clocking */
716 /* On PCIx2 clocking */
719 /* Clocking is disabled */
720 /* 133 clock attempt to force it on */
721 writeb(tmpbyte & ~0x20, ioaddr + 0x4A);
725 writeb( 0x72, ioaddr + 0xA1);
726 writew( 0x328A, ioaddr + 0xA2);
727 writel(0x62DD62DD, ioaddr + 0xA4);
728 writel(0x43924392, ioaddr + 0xA8);
729 writel(0x40094009, ioaddr + 0xAC);
730 writeb( 0x72, ioaddr + 0xE1);
731 writew( 0x328A, ioaddr + 0xE2);
732 writel(0x62DD62DD, ioaddr + 0xE4);
733 writel(0x43924392, ioaddr + 0xE8);
734 writel(0x40094009, ioaddr + 0xEC);
736 if (pdev_is_sata(dev)) {
737 writel(0xFFFF0000, ioaddr + 0x108);
738 writel(0xFFFF0000, ioaddr + 0x188);
739 writel(0x00680000, ioaddr + 0x148);
740 writel(0x00680000, ioaddr + 0x1C8);
743 tmpbyte = readb(ioaddr + 0x4A);
745 proc_reports_siimage(dev, (tmpbyte>>4), name);
750 * init_chipset_siimage - set up an SI device
754 * Perform the initial PCI set up for this device. Attempt to switch
755 * to 133MHz clocking if the system isn't already set up to do it.
758 static unsigned int __devinit init_chipset_siimage(struct pci_dev *dev, const char *name)
764 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
766 pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (class_rev) ? 1 : 255);
768 pci_read_config_byte(dev, 0x8A, &BA5_EN);
769 if ((BA5_EN & 0x01) || (pci_resource_start(dev, 5))) {
770 if (setup_mmio_siimage(dev, name)) {
775 pci_write_config_byte(dev, 0x80, 0x00);
776 pci_write_config_byte(dev, 0x84, 0x00);
777 pci_read_config_byte(dev, 0x8A, &tmpbyte);
778 switch(tmpbyte & 0x30) {
780 /* 133 clock attempt to force it on */
781 pci_write_config_byte(dev, 0x8A, tmpbyte|0x10);
783 /* if clocking is disabled */
784 /* 133 clock attempt to force it on */
785 pci_write_config_byte(dev, 0x8A, tmpbyte & ~0x20);
790 /* BIOS set PCI x2 clocking */
794 pci_read_config_byte(dev, 0x8A, &tmpbyte);
796 pci_write_config_byte(dev, 0xA1, 0x72);
797 pci_write_config_word(dev, 0xA2, 0x328A);
798 pci_write_config_dword(dev, 0xA4, 0x62DD62DD);
799 pci_write_config_dword(dev, 0xA8, 0x43924392);
800 pci_write_config_dword(dev, 0xAC, 0x40094009);
801 pci_write_config_byte(dev, 0xB1, 0x72);
802 pci_write_config_word(dev, 0xB2, 0x328A);
803 pci_write_config_dword(dev, 0xB4, 0x62DD62DD);
804 pci_write_config_dword(dev, 0xB8, 0x43924392);
805 pci_write_config_dword(dev, 0xBC, 0x40094009);
807 proc_reports_siimage(dev, (tmpbyte>>4), name);
812 * init_mmio_iops_siimage - set up the iops for MMIO
813 * @hwif: interface to set up
815 * The basic setup here is fairly simple, we can use standard MMIO
816 * operations. However we do have to set the taskfile register offsets
817 * by hand as there isnt a standard defined layout for them this
820 * The hardware supports buffered taskfiles and also some rather nice
821 * extended PRD tables. For better SI3112 support use the libata driver
824 static void __devinit init_mmio_iops_siimage(ide_hwif_t *hwif)
826 struct pci_dev *dev = hwif->pci_dev;
827 void *addr = pci_get_drvdata(dev);
828 u8 ch = hwif->channel;
833 * Fill in the basic HWIF bits
836 default_hwif_mmiops(hwif);
837 hwif->hwif_data = addr;
840 * Now set up the hw. We have to do this ourselves as
841 * the MMIO layout isnt the same as the the standard port
845 memset(&hw, 0, sizeof(hw_regs_t));
847 base = (unsigned long)addr;
854 * The buffered task file doesn't have status/control
855 * so we can't currently use it sanely since we want to
858 hw.io_ports[IDE_DATA_OFFSET] = base;
859 hw.io_ports[IDE_ERROR_OFFSET] = base + 1;
860 hw.io_ports[IDE_NSECTOR_OFFSET] = base + 2;
861 hw.io_ports[IDE_SECTOR_OFFSET] = base + 3;
862 hw.io_ports[IDE_LCYL_OFFSET] = base + 4;
863 hw.io_ports[IDE_HCYL_OFFSET] = base + 5;
864 hw.io_ports[IDE_SELECT_OFFSET] = base + 6;
865 hw.io_ports[IDE_STATUS_OFFSET] = base + 7;
866 hw.io_ports[IDE_CONTROL_OFFSET] = base + 10;
868 hw.io_ports[IDE_IRQ_OFFSET] = 0;
870 if (pdev_is_sata(dev)) {
871 base = (unsigned long)addr;
874 hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104;
875 hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108;
876 hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100;
877 hwif->sata_misc[SATA_MISC_OFFSET] = base + 0x140;
878 hwif->sata_misc[SATA_PHY_OFFSET] = base + 0x144;
879 hwif->sata_misc[SATA_IEN_OFFSET] = base + 0x148;
882 hw.irq = hwif->pci_dev->irq;
884 memcpy(&hwif->hw, &hw, sizeof(hw));
885 memcpy(hwif->io_ports, hwif->hw.io_ports, sizeof(hwif->hw.io_ports));
889 base = (unsigned long) addr;
891 hwif->dma_base = base + (ch ? 0x08 : 0x00);
896 static int is_dev_seagate_sata(ide_drive_t *drive)
898 const char *s = &drive->id->model[0];
904 len = strnlen(s, sizeof(drive->id->model));
906 if ((len > 4) && (!memcmp(s, "ST", 2))) {
907 if ((!memcmp(s + len - 2, "AS", 2)) ||
908 (!memcmp(s + len - 3, "ASL", 3))) {
909 printk(KERN_INFO "%s: applying pessimistic Seagate "
910 "errata fix\n", drive->name);
918 * siimage_fixup - post probe fixups
919 * @hwif: interface to fix up
921 * Called after drive probe we use this to decide whether the
922 * Seagate fixup must be applied. This used to be in init_iops but
923 * that can occur before we know what drives are present.
926 static void __devinit siimage_fixup(ide_hwif_t *hwif)
928 /* Try and raise the rqsize */
929 if (!is_sata(hwif) || !is_dev_seagate_sata(&hwif->drives[0]))
934 * init_iops_siimage - set up iops
935 * @hwif: interface to set up
937 * Do the basic setup for the SIIMAGE hardware interface
938 * and then do the MMIO setup if we can. This is the first
939 * look in we get for setting up the hwif so that we
940 * can get the iops right before using them.
943 static void __devinit init_iops_siimage(ide_hwif_t *hwif)
945 struct pci_dev *dev = hwif->pci_dev;
948 pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
951 hwif->hwif_data = NULL;
953 /* Pessimal until we finish probing */
956 if (pci_get_drvdata(dev) == NULL)
958 init_mmio_iops_siimage(hwif);
962 * ata66_siimage - check for 80 pin cable
963 * @hwif: interface to check
965 * Check for the presence of an ATA66 capable cable on the
969 static unsigned int __devinit ata66_siimage(ide_hwif_t *hwif)
971 unsigned long addr = siimage_selreg(hwif, 0);
972 if (pci_get_drvdata(hwif->pci_dev) == NULL) {
974 pci_read_config_byte(hwif->pci_dev, addr, &ata66);
975 return (ata66 & 0x01) ? 1 : 0;
978 return (hwif->INB(addr) & 0x01) ? 1 : 0;
982 * init_hwif_siimage - set up hwif structs
983 * @hwif: interface to set up
985 * We do the basic set up of the interface structure. The SIIMAGE
986 * requires several custom handlers so we override the default
987 * ide DMA handlers appropriately
990 static void __devinit init_hwif_siimage(ide_hwif_t *hwif)
994 hwif->resetproc = &siimage_reset;
995 hwif->speedproc = &siimage_tune_chipset;
996 hwif->tuneproc = &siimage_tuneproc;
997 hwif->reset_poll = &siimage_reset_poll;
998 hwif->pre_reset = &siimage_pre_reset;
1001 static int first = 1;
1003 hwif->busproc = &siimage_busproc;
1006 printk(KERN_INFO "siimage: For full SATA support you should use the libata sata_sil module.\n");
1010 if (!hwif->dma_base) {
1011 hwif->drives[0].autotune = 1;
1012 hwif->drives[1].autotune = 1;
1016 hwif->ultra_mask = 0x7f;
1017 hwif->mwdma_mask = 0x07;
1018 hwif->swdma_mask = 0x07;
1021 hwif->atapi_dma = 1;
1023 hwif->ide_dma_check = &siimage_config_drive_for_dma;
1024 if (!(hwif->udma_four))
1025 hwif->udma_four = ata66_siimage(hwif);
1028 hwif->ide_dma_test_irq = &siimage_mmio_ide_dma_test_irq;
1030 hwif->ide_dma_test_irq = & siimage_io_ide_dma_test_irq;
1034 * The BIOS often doesn't set up DMA on this controller
1035 * so we always do it.
1039 hwif->drives[0].autodma = hwif->autodma;
1040 hwif->drives[1].autodma = hwif->autodma;
1043 #define DECLARE_SII_DEV(name_str) \
1046 .init_chipset = init_chipset_siimage, \
1047 .init_iops = init_iops_siimage, \
1048 .init_hwif = init_hwif_siimage, \
1049 .fixup = siimage_fixup, \
1051 .autodma = AUTODMA, \
1052 .bootable = ON_BOARD, \
1055 static ide_pci_device_t siimage_chipsets[] __devinitdata = {
1056 /* 0 */ DECLARE_SII_DEV("SiI680"),
1057 /* 1 */ DECLARE_SII_DEV("SiI3112 Serial ATA"),
1058 /* 2 */ DECLARE_SII_DEV("Adaptec AAR-1210SA")
1062 * siimage_init_one - pci layer discovery entry
1064 * @id: ident table entry
1066 * Called by the PCI code when it finds an SI680 or SI3112 controller.
1067 * We then use the IDE PCI generic helper to do most of the work.
1070 static int __devinit siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id)
1072 return ide_setup_pci_device(dev, &siimage_chipsets[id->driver_data]);
1075 static struct pci_device_id siimage_pci_tbl[] = {
1076 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1077 #ifdef CONFIG_BLK_DEV_IDE_SATA
1078 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_3112, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
1079 { PCI_VENDOR_ID_CMD, PCI_DEVICE_ID_SII_1210SA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
1083 MODULE_DEVICE_TABLE(pci, siimage_pci_tbl);
1085 static struct pci_driver driver = {
1087 .id_table = siimage_pci_tbl,
1088 .probe = siimage_init_one,
1091 static int __init siimage_ide_init(void)
1093 return ide_pci_register_driver(&driver);
1096 module_init(siimage_ide_init);
1098 MODULE_AUTHOR("Andre Hedrick, Alan Cox");
1099 MODULE_DESCRIPTION("PCI driver module for SiI IDE");
1100 MODULE_LICENSE("GPL");