drivers/ide/pci/pdc202xx_new.c - kernel/msm-4.9 - Gitiles

 /*
  *  Promise TX2/TX4/TX2000/133 IDE driver
  *
  *  This program is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU General Public License
  *  as published by the Free Software Foundation; either version
  *  2 of the License, or (at your option) any later version.
  *
  *  Split from:
  *  linux/drivers/ide/pdc202xx.c	Version 0.35	Mar. 30, 2002
  *  Copyright (C) 1998-2002		Andre Hedrick <andre@linux-ide.org>
  *  Copyright (C) 2005-2006		MontaVista Software, Inc.
  *  Portions Copyright (C) 1999 Promise Technology, Inc.
  *  Author: Frank Tiernan (frankt@promise.com)
  *  Released under terms of General Public License
  */

 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/timer.h>
 #include <linux/mm.h>
 #include <linux/ioport.h>
 #include <linux/blkdev.h>
 #include <linux/hdreg.h>
 #include <linux/interrupt.h>
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <linux/ide.h>

 #include <asm/io.h>
 #include <asm/irq.h>

 #ifdef CONFIG_PPC_PMAC
 #include <asm/prom.h>
 #include <asm/pci-bridge.h>
 #endif

 #define PDC202_DEBUG_CABLE	0

 #undef DEBUG

 #ifdef DEBUG
 #define DBG(fmt, args...) printk("%s: " fmt, __FUNCTION__, ## args)
 #else
 #define DBG(fmt, args...)
 #endif

 static const char *pdc_quirk_drives[] = {
 	"QUANTUM FIREBALLlct08 08",
 	"QUANTUM FIREBALLP KA6.4",
 	"QUANTUM FIREBALLP KA9.1",
 	"QUANTUM FIREBALLP LM20.4",
 	"QUANTUM FIREBALLP KX13.6",
 	"QUANTUM FIREBALLP KX20.5",
 	"QUANTUM FIREBALLP KX27.3",
 	"QUANTUM FIREBALLP LM20.5",
 	NULL
 };

 static u8 max_dma_rate(struct pci_dev *pdev)
 {
 	u8 mode;

 	switch(pdev->device) {
 		case PCI_DEVICE_ID_PROMISE_20277:
 		case PCI_DEVICE_ID_PROMISE_20276:
 		case PCI_DEVICE_ID_PROMISE_20275:
 		case PCI_DEVICE_ID_PROMISE_20271:
 		case PCI_DEVICE_ID_PROMISE_20269:
 			mode = 4;
 			break;
 		case PCI_DEVICE_ID_PROMISE_20270:
 		case PCI_DEVICE_ID_PROMISE_20268:
 			mode = 3;
 			break;
 		default:
 			return 0;
 	}

 	return mode;
 }

 static u8 pdcnew_ratemask(ide_drive_t *drive)
 {
 	u8 mode = max_dma_rate(HWIF(drive)->pci_dev);

 	if (!eighty_ninty_three(drive))
 		mode = min_t(u8, mode, 1);

 	return	mode;
 }

 static int check_in_drive_lists(ide_drive_t *drive, const char **list)
 {
 	struct hd_driveid *id = drive->id;

 	if (pdc_quirk_drives == list) {
 		while (*list) {
 			if (strstr(id->model, *list++)) {
 				return 2;
 			}
 		}
 	} else {
 		while (*list) {
 			if (!strcmp(*list++,id->model)) {
 				return 1;
 			}
 		}
 	}
 	return 0;
 }

 /**
  * get_indexed_reg - Get indexed register
  * @hwif: for the port address
  * @index: index of the indexed register
  */
 static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index)
 {
 	u8 value;

 	hwif->OUTB(index, hwif->dma_vendor1);
 	value = hwif->INB(hwif->dma_vendor3);

 	DBG("index[%02X] value[%02X]\n", index, value);
 	return value;
 }

 /**
  * set_indexed_reg - Set indexed register
  * @hwif: for the port address
  * @index: index of the indexed register
  */
 static void set_indexed_reg(ide_hwif_t *hwif, u8 index, u8 value)
 {
 	hwif->OUTB(index, hwif->dma_vendor1);
 	hwif->OUTB(value, hwif->dma_vendor3);
 	DBG("index[%02X] value[%02X]\n", index, value);
 }

 /*
  * ATA Timing Tables based on 133 MHz PLL output clock.
  *
  * If the PLL outputs 100 MHz clock, the ASIC hardware will set
  * the timing registers automatically when "set features" command is
  * issued to the device. However, if the PLL output clock is 133 MHz,
  * the following tables must be used.
  */
 static struct pio_timing {
 	u8 reg0c, reg0d, reg13;
 } pio_timings [] = {
 	{ 0xfb, 0x2b, 0xac },	/* PIO mode 0, IORDY off, Prefetch off */
 	{ 0x46, 0x29, 0xa4 },	/* PIO mode 1, IORDY off, Prefetch off */
 	{ 0x23, 0x26, 0x64 },	/* PIO mode 2, IORDY off, Prefetch off */
 	{ 0x27, 0x0d, 0x35 },	/* PIO mode 3, IORDY on,  Prefetch off */
 	{ 0x23, 0x09, 0x25 },	/* PIO mode 4, IORDY on,  Prefetch off */
 };

 static struct mwdma_timing {
 	u8 reg0e, reg0f;
 } mwdma_timings [] = {
 	{ 0xdf, 0x5f }, 	/* MWDMA mode 0 */
 	{ 0x6b, 0x27 }, 	/* MWDMA mode 1 */
 	{ 0x69, 0x25 }, 	/* MWDMA mode 2 */
 };

 static struct udma_timing {
 	u8 reg10, reg11, reg12;
 } udma_timings [] = {
 	{ 0x4a, 0x0f, 0xd5 },	/* UDMA mode 0 */
 	{ 0x3a, 0x0a, 0xd0 },	/* UDMA mode 1 */
 	{ 0x2a, 0x07, 0xcd },	/* UDMA mode 2 */
 	{ 0x1a, 0x05, 0xcd },	/* UDMA mode 3 */
 	{ 0x1a, 0x03, 0xcd },	/* UDMA mode 4 */
 	{ 0x1a, 0x02, 0xcb },	/* UDMA mode 5 */
 	{ 0x1a, 0x01, 0xcb },	/* UDMA mode 6 */
 };

 static int pdcnew_tune_chipset(ide_drive_t *drive, u8 speed)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	u8 adj			= (drive->dn & 1) ? 0x08 : 0x00;
 	int			err;

 	speed = ide_rate_filter(pdcnew_ratemask(drive), speed);

 	/*
 	 * Issue SETFEATURES_XFER to the drive first. PDC202xx hardware will
 	 * automatically set the timing registers based on 100 MHz PLL output.
 	 */
  	err = ide_config_drive_speed(drive, speed);

 	/*
 	 * As we set up the PLL to output 133 MHz for UltraDMA/133 capable
 	 * chips, we must override the default register settings...
 	 */
 	if (max_dma_rate(hwif->pci_dev) == 4) {
 		u8 mode = speed & 0x07;

 		switch (speed) {
 			case XFER_UDMA_6:
 			case XFER_UDMA_5:
 			case XFER_UDMA_4:
 			case XFER_UDMA_3:
 			case XFER_UDMA_2:
 			case XFER_UDMA_1:
 			case XFER_UDMA_0:
 				set_indexed_reg(hwif, 0x10 + adj,
 						udma_timings[mode].reg10);
 				set_indexed_reg(hwif, 0x11 + adj,
 						udma_timings[mode].reg11);
 				set_indexed_reg(hwif, 0x12 + adj,
 						udma_timings[mode].reg12);
 				break;

 			case XFER_MW_DMA_2:
 			case XFER_MW_DMA_1:
 			case XFER_MW_DMA_0:
 				set_indexed_reg(hwif, 0x0e + adj,
 						mwdma_timings[mode].reg0e);
 				set_indexed_reg(hwif, 0x0f + adj,
 						mwdma_timings[mode].reg0f);
 				break;
 			case XFER_PIO_4:
 			case XFER_PIO_3:
 			case XFER_PIO_2:
 			case XFER_PIO_1:
 			case XFER_PIO_0:
 				set_indexed_reg(hwif, 0x0c + adj,
 						pio_timings[mode].reg0c);
 				set_indexed_reg(hwif, 0x0d + adj,
 						pio_timings[mode].reg0d);
 				set_indexed_reg(hwif, 0x13 + adj,
 						pio_timings[mode].reg13);
 				break;
 			default:
 				printk(KERN_ERR "pdc202xx_new: "
 				       "Unknown speed %d ignored\n", speed);
 		}
 	} else if (speed == XFER_UDMA_2) {
 		/* Set tHOLD bit to 0 if using UDMA mode 2 */
 		u8 tmp = get_indexed_reg(hwif, 0x10 + adj);

 		set_indexed_reg(hwif, 0x10 + adj, tmp & 0x7f);
  	}

 	return err;
 }

 static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
 {
 	pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
 	(void)pdcnew_tune_chipset(drive, XFER_PIO_0 + pio);
 }

 static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
 {
 	return get_indexed_reg(hwif, 0x0b) & 0x04;
 }

 static int config_chipset_for_dma(ide_drive_t *drive)
 {
 	struct hd_driveid *id	= drive->id;
 	ide_hwif_t *hwif	= HWIF(drive);
 	u8 ultra_66		= (id->dma_ultra & 0x0078) ? 1 : 0;
 	u8 cable		= pdcnew_cable_detect(hwif);
 	u8 speed;

 	if (ultra_66 && cable) {
 		printk(KERN_WARNING "Warning: %s channel "
 		       "requires an 80-pin cable for operation.\n",
 		       hwif->channel ? "Secondary" : "Primary");
 		printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
 	}

 	if (drive->media != ide_disk)
 		return 0;

 	if (id->capability & 4) {
 		/*
 		 * Set IORDY_EN & PREFETCH_EN (this seems to have
 		 * NO real effect since this register is reloaded
 		 * by hardware when the transfer mode is selected)
 		 */
 		u8 tmp, adj = (drive->dn & 1) ? 0x08 : 0x00;

 		tmp = get_indexed_reg(hwif, 0x13 + adj);
 		set_indexed_reg(hwif, 0x13 + adj, tmp | 0x03);
 	}

 	speed = ide_dma_speed(drive, pdcnew_ratemask(drive));

 	if (!speed)
 		return 0;

 	(void) hwif->speedproc(drive, speed);
 	return ide_dma_enable(drive);
 }

 static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	struct hd_driveid *id	= drive->id;

 	drive->init_speed = 0;

 	if ((id->capability & 1) && drive->autodma) {

 		if (ide_use_dma(drive) && config_chipset_for_dma(drive))
 			return hwif->ide_dma_on(drive);

 		goto fast_ata_pio;

 	} else if ((id->capability & 8) || (id->field_valid & 2)) {
 fast_ata_pio:
 		hwif->tuneproc(drive, 255);
 		return hwif->ide_dma_off_quietly(drive);
 	}
 	/* IORDY not supported */
 	return 0;
 }

 static int pdcnew_quirkproc(ide_drive_t *drive)
 {
 	return check_in_drive_lists(drive, pdc_quirk_drives);
 }

 static void pdcnew_reset(ide_drive_t *drive)
 {
 	/*
 	 * Deleted this because it is redundant from the caller.
 	 */
 	printk(KERN_WARNING "pdc202xx_new: %s channel reset.\n",
 		HWIF(drive)->channel ? "Secondary" : "Primary");
 }

 /**
  * read_counter - Read the byte count registers
  * @dma_base: for the port address
  */
 static long __devinit read_counter(u32 dma_base)
 {
 	u32  pri_dma_base = dma_base, sec_dma_base = dma_base + 0x08;
 	u8   cnt0, cnt1, cnt2, cnt3;
 	long count = 0, last;
 	int  retry = 3;

 	do {
 		last = count;

 		/* Read the current count */
 		outb(0x20, pri_dma_base + 0x01);
 		cnt0 = inb(pri_dma_base + 0x03);
 		outb(0x21, pri_dma_base + 0x01);
 		cnt1 = inb(pri_dma_base + 0x03);
 		outb(0x20, sec_dma_base + 0x01);
 		cnt2 = inb(sec_dma_base + 0x03);
 		outb(0x21, sec_dma_base + 0x01);
 		cnt3 = inb(sec_dma_base + 0x03);

 		count = (cnt3 << 23) | (cnt2 << 15) | (cnt1 << 8) | cnt0;

 		/*
 		 * The 30-bit decrementing counter is read in 4 pieces.
 		 * Incorrect value may be read when the most significant bytes
 		 * are changing...
 		 */
 	} while (retry-- && (((last ^ count) & 0x3fff8000) || last < count));

 	DBG("cnt0[%02X] cnt1[%02X] cnt2[%02X] cnt3[%02X]\n",
 		  cnt0, cnt1, cnt2, cnt3);

 	return count;
 }

 /**
  * detect_pll_input_clock - Detect the PLL input clock in Hz.
  * @dma_base: for the port address
  * E.g. 16949000 on 33 MHz PCI bus, i.e. half of the PCI clock.
  */
 static long __devinit detect_pll_input_clock(unsigned long dma_base)
 {
 	long start_count, end_count;
 	long pll_input;
 	u8 scr1;

 	start_count = read_counter(dma_base);

 	/* Start the test mode */
 	outb(0x01, dma_base + 0x01);
 	scr1 = inb(dma_base + 0x03);
 	DBG("scr1[%02X]\n", scr1);
 	outb(scr1 | 0x40, dma_base + 0x03);

 	/* Let the counter run for 10 ms. */
 	mdelay(10);

 	end_count = read_counter(dma_base);

 	/* Stop the test mode */
 	outb(0x01, dma_base + 0x01);
 	scr1 = inb(dma_base + 0x03);
 	DBG("scr1[%02X]\n", scr1);
 	outb(scr1 & ~0x40, dma_base + 0x03);

 	/*
 	 * Calculate the input clock in Hz
 	 * (the clock counter is 30 bit wide and counts down)
 	 */
 	pll_input = ((start_count - end_count) & 0x3ffffff) * 100;

 	DBG("start[%ld] end[%ld]\n", start_count, end_count);

 	return pll_input;
 }

 #ifdef CONFIG_PPC_PMAC
 static void __devinit apple_kiwi_init(struct pci_dev *pdev)
 {
 	struct device_node *np = pci_device_to_OF_node(pdev);
 	unsigned int class_rev = 0;
 	u8 conf;

 	if (np == NULL || !device_is_compatible(np, "kiwi-root"))
 		return;

 	pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
 	class_rev &= 0xff;

 	if (class_rev >= 0x03) {
 		/* Setup chip magic config stuff (from darwin) */
 		pci_read_config_byte (pdev, 0x40, &conf);
 		pci_write_config_byte(pdev, 0x40, (conf | 0x01));
 	}
 }
 #endif /* CONFIG_PPC_PMAC */

 static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name)
 {
 	unsigned long dma_base = pci_resource_start(dev, 4);
 	unsigned long sec_dma_base = dma_base + 0x08;
 	long pll_input, pll_output, ratio;
 	int f, r;
 	u8 pll_ctl0, pll_ctl1;

 	if (dev->resource[PCI_ROM_RESOURCE].start) {
 		pci_write_config_dword(dev, PCI_ROM_ADDRESS,
 			dev->resource[PCI_ROM_RESOURCE].start | PCI_ROM_ADDRESS_ENABLE);
 		printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name,
 			(unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
 	}

 #ifdef CONFIG_PPC_PMAC
 	apple_kiwi_init(dev);
 #endif

 	/* Calculate the required PLL output frequency */
 	switch(max_dma_rate(dev)) {
 		case 4: /* it's 133 MHz for Ultra133 chips */
 			pll_output = 133333333;
 			break;
 		case 3: /* and  100 MHz for Ultra100 chips */
 		default:
 			pll_output = 100000000;
 			break;
 	}

 	/*
 	 * Detect PLL input clock.
 	 * On some systems, where PCI bus is running at non-standard clock rate
 	 * (e.g. 25 or 40 MHz), we have to adjust the cycle time.
 	 * PDC20268 and newer chips employ PLL circuit to help correct timing
 	 * registers setting.
 	 */
 	pll_input = detect_pll_input_clock(dma_base);
 	printk("%s: PLL input clock is %ld kHz\n", name, pll_input / 1000);

 	/* Sanity check */
 	if (unlikely(pll_input < 5000000L || pll_input > 70000000L)) {
 		printk(KERN_ERR "%s: Bad PLL input clock %ld Hz, giving up!\n",
 		       name, pll_input);
 		goto out;
 	}

 #ifdef DEBUG
 	DBG("pll_output is %ld Hz\n", pll_output);

 	/* Show the current clock value of PLL control register
 	 * (maybe already configured by the BIOS)
 	 */
 	outb(0x02, sec_dma_base + 0x01);
 	pll_ctl0 = inb(sec_dma_base + 0x03);
 	outb(0x03, sec_dma_base + 0x01);
 	pll_ctl1 = inb(sec_dma_base + 0x03);

 	DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
 #endif

 	/*
 	 * Calculate the ratio of F, R and NO
 	 * POUT = (F + 2) / (( R + 2) * NO)
 	 */
 	ratio = pll_output / (pll_input / 1000);
 	if (ratio < 8600L) { /* 8.6x */
 		/* Using NO = 0x01, R = 0x0d */
 		r = 0x0d;
 	} else if (ratio < 12900L) { /* 12.9x */
 		/* Using NO = 0x01, R = 0x08 */
 		r = 0x08;
 	} else if (ratio < 16100L) { /* 16.1x */
 		/* Using NO = 0x01, R = 0x06 */
 		r = 0x06;
 	} else if (ratio < 64000L) { /* 64x */
 		r = 0x00;
 	} else {
 		/* Invalid ratio */
 		printk(KERN_ERR "%s: Bad ratio %ld, giving up!\n", name, ratio);
 		goto out;
 	}

 	f = (ratio * (r + 2)) / 1000 - 2;

 	DBG("F[%d] R[%d] ratio*1000[%ld]\n", f, r, ratio);

 	if (unlikely(f < 0 || f > 127)) {
 		/* Invalid F */
 		printk(KERN_ERR "%s: F[%d] invalid!\n", name, f);
 		goto out;
 	}

 	pll_ctl0 = (u8) f;
 	pll_ctl1 = (u8) r;

 	DBG("Writing pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);

 	outb(0x02,     sec_dma_base + 0x01);
 	outb(pll_ctl0, sec_dma_base + 0x03);
 	outb(0x03,     sec_dma_base + 0x01);
 	outb(pll_ctl1, sec_dma_base + 0x03);

 	/* Wait the PLL circuit to be stable */
 	mdelay(30);

 #ifdef DEBUG
 	/*
 	 *  Show the current clock value of PLL control register
 	 */
 	outb(0x02, sec_dma_base + 0x01);
 	pll_ctl0 = inb(sec_dma_base + 0x03);
 	outb(0x03, sec_dma_base + 0x01);
 	pll_ctl1 = inb(sec_dma_base + 0x03);

 	DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
 #endif

  out:
 	return dev->irq;
 }

 static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
 {
 	hwif->autodma = 0;

 	hwif->tuneproc  = &pdcnew_tune_drive;
 	hwif->quirkproc = &pdcnew_quirkproc;
 	hwif->speedproc = &pdcnew_tune_chipset;
 	hwif->resetproc = &pdcnew_reset;

 	hwif->drives[0].autotune = hwif->drives[1].autotune = 1;

 	hwif->ultra_mask = 0x7f;
 	hwif->mwdma_mask = 0x07;

 	hwif->err_stops_fifo = 1;

 	hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;

 	if (!hwif->udma_four)
 		hwif->udma_four = pdcnew_cable_detect(hwif) ? 0 : 1;

 	if (!noautodma)
 		hwif->autodma = 1;
 	hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;

 #if PDC202_DEBUG_CABLE
 	printk(KERN_DEBUG "%s: %s-pin cable\n",
 		hwif->name, hwif->udma_four ? "80" : "40");
 #endif /* PDC202_DEBUG_CABLE */
 }

 static int __devinit init_setup_pdcnew(struct pci_dev *dev, ide_pci_device_t *d)
 {
 	return ide_setup_pci_device(dev, d);
 }

 static int __devinit init_setup_pdc20270(struct pci_dev *dev,
 					 ide_pci_device_t *d)
 {
 	struct pci_dev *findev = NULL;
 	int ret;

 	if ((dev->bus->self &&
 	     dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
 	    (dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
 		if (PCI_SLOT(dev->devfn) & 2)
 			return -ENODEV;
 		d->extra = 0;
 		while ((findev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
 			if ((findev->vendor == dev->vendor) &&
 			    (findev->device == dev->device) &&
 			    (PCI_SLOT(findev->devfn) & 2)) {
 				if (findev->irq != dev->irq) {
 					findev->irq = dev->irq;
 				}
 				ret = ide_setup_pci_devices(dev, findev, d);
 				pci_dev_put(findev);
 				return ret;
 			}
 		}
 	}
 	return ide_setup_pci_device(dev, d);
 }

 static int __devinit init_setup_pdc20276(struct pci_dev *dev,
 					 ide_pci_device_t *d)
 {
 	if ((dev->bus->self) &&
 	    (dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
 	    ((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) ||
 	     (dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
 		printk(KERN_INFO "ide: Skipping Promise PDC20276 "
 			"attached to I2O RAID controller.\n");
 		return -ENODEV;
 	}
 	return ide_setup_pci_device(dev, d);
 }

 static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
 	{	/* 0 */
 		.name		= "PDC20268",
 		.init_setup	= init_setup_pdcnew,
 		.init_chipset	= init_chipset_pdcnew,
 		.init_hwif	= init_hwif_pdc202new,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 1 */
 		.name		= "PDC20269",
 		.init_setup	= init_setup_pdcnew,
 		.init_chipset	= init_chipset_pdcnew,
 		.init_hwif	= init_hwif_pdc202new,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 2 */
 		.name		= "PDC20270",
 		.init_setup	= init_setup_pdc20270,
 		.init_chipset	= init_chipset_pdcnew,
 		.init_hwif	= init_hwif_pdc202new,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 3 */
 		.name		= "PDC20271",
 		.init_setup	= init_setup_pdcnew,
 		.init_chipset	= init_chipset_pdcnew,
 		.init_hwif	= init_hwif_pdc202new,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 4 */
 		.name		= "PDC20275",
 		.init_setup	= init_setup_pdcnew,
 		.init_chipset	= init_chipset_pdcnew,
 		.init_hwif	= init_hwif_pdc202new,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 5 */
 		.name		= "PDC20276",
 		.init_setup	= init_setup_pdc20276,
 		.init_chipset	= init_chipset_pdcnew,
 		.init_hwif	= init_hwif_pdc202new,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	},{	/* 6 */
 		.name		= "PDC20277",
 		.init_setup	= init_setup_pdcnew,
 		.init_chipset	= init_chipset_pdcnew,
 		.init_hwif	= init_hwif_pdc202new,
 		.channels	= 2,
 		.autodma	= AUTODMA,
 		.bootable	= OFF_BOARD,
 	}
 };

 /**
  *	pdc202new_init_one	-	called when a pdc202xx is found
  *	@dev: the pdc202new device
  *	@id: the matching pci id
  *
  *	Called when the PCI registration layer (or the IDE initialization)
  *	finds a device matching our IDE device tables.
  */

 static int __devinit pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id)
 {
 	ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];

 	return d->init_setup(dev, d);
 }

 static struct pci_device_id pdc202new_pci_tbl[] = {
 	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
 	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
 	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
 	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
 	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
 	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
 	{ 0, },
 };
 MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);

 static struct pci_driver driver = {
 	.name		= "Promise_IDE",
 	.id_table	= pdc202new_pci_tbl,
 	.probe		= pdc202new_init_one,
 };

 static int __init pdc202new_ide_init(void)
 {
 	return ide_pci_register_driver(&driver);
 }

 module_init(pdc202new_ide_init);

 MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
 MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
 MODULE_LICENSE("GPL");
	/*
	* Promise TX2/TX4/TX2000/133 IDE driver
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License
	* as published by the Free Software Foundation; either version
	* 2 of the License, or (at your option) any later version.
	*
	* Split from:
	* linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002
	* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
	* Copyright (C) 2005-2006 MontaVista Software, Inc.
	* Portions Copyright (C) 1999 Promise Technology, Inc.
	* Author: Frank Tiernan (frankt@promise.com)
	* Released under terms of General Public License
	*/

	#include <linux/module.h>
	#include <linux/types.h>
	#include <linux/kernel.h>
	#include <linux/delay.h>
	#include <linux/timer.h>
	#include <linux/mm.h>
	#include <linux/ioport.h>
	#include <linux/blkdev.h>
	#include <linux/hdreg.h>
	#include <linux/interrupt.h>
	#include <linux/pci.h>
	#include <linux/init.h>
	#include <linux/ide.h>

	#include <asm/io.h>
	#include <asm/irq.h>

	#ifdef CONFIG_PPC_PMAC
	#include <asm/prom.h>
	#include <asm/pci-bridge.h>
	#endif

	#define PDC202_DEBUG_CABLE 0

	#undef DEBUG

	#ifdef DEBUG
	#define DBG(fmt, args...) printk("%s: " fmt, __FUNCTION__, ## args)
	#else
	#define DBG(fmt, args...)
	#endif

	static const char *pdc_quirk_drives[] = {
	"QUANTUM FIREBALLlct08 08",
	"QUANTUM FIREBALLP KA6.4",
	"QUANTUM FIREBALLP KA9.1",
	"QUANTUM FIREBALLP LM20.4",
	"QUANTUM FIREBALLP KX13.6",
	"QUANTUM FIREBALLP KX20.5",
	"QUANTUM FIREBALLP KX27.3",
	"QUANTUM FIREBALLP LM20.5",
	NULL
	};

	static u8 max_dma_rate(struct pci_dev *pdev)
	{
	u8 mode;

	switch(pdev->device) {
	case PCI_DEVICE_ID_PROMISE_20277:
	case PCI_DEVICE_ID_PROMISE_20276:
	case PCI_DEVICE_ID_PROMISE_20275:
	case PCI_DEVICE_ID_PROMISE_20271:
	case PCI_DEVICE_ID_PROMISE_20269:
	mode = 4;
	break;
	case PCI_DEVICE_ID_PROMISE_20270:
	case PCI_DEVICE_ID_PROMISE_20268:
	mode = 3;
	break;
	default:
	return 0;
	}

	return mode;
	}

	static u8 pdcnew_ratemask(ide_drive_t *drive)
	{
	u8 mode = max_dma_rate(HWIF(drive)->pci_dev);

	if (!eighty_ninty_three(drive))
	mode = min_t(u8, mode, 1);

	return mode;
	}

	static int check_in_drive_lists(ide_drive_t drive, const char *list)
	{
	struct hd_driveid *id = drive->id;

	if (pdc_quirk_drives == list) {
	while (*list) {
	if (strstr(id->model, *list++)) {
	return 2;
	}
	}
	} else {
	while (*list) {
	if (!strcmp(*list++,id->model)) {
	return 1;
	}
	}
	}
	return 0;
	}

	/**
	* get_indexed_reg - Get indexed register
	* @hwif: for the port address
	* @index: index of the indexed register
	*/
	static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index)
	{
	u8 value;

	hwif->OUTB(index, hwif->dma_vendor1);
	value = hwif->INB(hwif->dma_vendor3);

	DBG("index[%02X] value[%02X]\n", index, value);
	return value;
	}

	/**
	* set_indexed_reg - Set indexed register
	* @hwif: for the port address
	* @index: index of the indexed register
	*/
	static void set_indexed_reg(ide_hwif_t *hwif, u8 index, u8 value)
	{
	hwif->OUTB(index, hwif->dma_vendor1);
	hwif->OUTB(value, hwif->dma_vendor3);
	DBG("index[%02X] value[%02X]\n", index, value);
	}

	/*
	* ATA Timing Tables based on 133 MHz PLL output clock.
	*
	* If the PLL outputs 100 MHz clock, the ASIC hardware will set
	* the timing registers automatically when "set features" command is
	* issued to the device. However, if the PLL output clock is 133 MHz,
	* the following tables must be used.
	*/
	static struct pio_timing {
	u8 reg0c, reg0d, reg13;
	} pio_timings [] = {
	{ 0xfb, 0x2b, 0xac }, /* PIO mode 0, IORDY off, Prefetch off */
	{ 0x46, 0x29, 0xa4 }, /* PIO mode 1, IORDY off, Prefetch off */
	{ 0x23, 0x26, 0x64 }, /* PIO mode 2, IORDY off, Prefetch off */
	{ 0x27, 0x0d, 0x35 }, /* PIO mode 3, IORDY on, Prefetch off */
	{ 0x23, 0x09, 0x25 }, /* PIO mode 4, IORDY on, Prefetch off */
	};

	static struct mwdma_timing {
	u8 reg0e, reg0f;
	} mwdma_timings [] = {
	{ 0xdf, 0x5f }, /* MWDMA mode 0 */
	{ 0x6b, 0x27 }, /* MWDMA mode 1 */
	{ 0x69, 0x25 }, /* MWDMA mode 2 */
	};

	static struct udma_timing {
	u8 reg10, reg11, reg12;
	} udma_timings [] = {
	{ 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */
	{ 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */
	{ 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */
	{ 0x1a, 0x05, 0xcd }, /* UDMA mode 3 */
	{ 0x1a, 0x03, 0xcd }, /* UDMA mode 4 */
	{ 0x1a, 0x02, 0xcb }, /* UDMA mode 5 */
	{ 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */
	};

	static int pdcnew_tune_chipset(ide_drive_t *drive, u8 speed)
	{
	ide_hwif_t *hwif = HWIF(drive);
	u8 adj = (drive->dn & 1) ? 0x08 : 0x00;
	int err;

	speed = ide_rate_filter(pdcnew_ratemask(drive), speed);

	/*
	* Issue SETFEATURES_XFER to the drive first. PDC202xx hardware will
	* automatically set the timing registers based on 100 MHz PLL output.
	*/
	err = ide_config_drive_speed(drive, speed);

	/*
	* As we set up the PLL to output 133 MHz for UltraDMA/133 capable
	* chips, we must override the default register settings...
	*/
	if (max_dma_rate(hwif->pci_dev) == 4) {
	u8 mode = speed & 0x07;

	switch (speed) {
	case XFER_UDMA_6:
	case XFER_UDMA_5:
	case XFER_UDMA_4:
	case XFER_UDMA_3:
	case XFER_UDMA_2:
	case XFER_UDMA_1:
	case XFER_UDMA_0:
	set_indexed_reg(hwif, 0x10 + adj,
	udma_timings[mode].reg10);
	set_indexed_reg(hwif, 0x11 + adj,
	udma_timings[mode].reg11);
	set_indexed_reg(hwif, 0x12 + adj,
	udma_timings[mode].reg12);
	break;

	case XFER_MW_DMA_2:
	case XFER_MW_DMA_1:
	case XFER_MW_DMA_0:
	set_indexed_reg(hwif, 0x0e + adj,
	mwdma_timings[mode].reg0e);
	set_indexed_reg(hwif, 0x0f + adj,
	mwdma_timings[mode].reg0f);
	break;
	case XFER_PIO_4:
	case XFER_PIO_3:
	case XFER_PIO_2:
	case XFER_PIO_1:
	case XFER_PIO_0:
	set_indexed_reg(hwif, 0x0c + adj,
	pio_timings[mode].reg0c);
	set_indexed_reg(hwif, 0x0d + adj,
	pio_timings[mode].reg0d);
	set_indexed_reg(hwif, 0x13 + adj,
	pio_timings[mode].reg13);
	break;
	default:
	printk(KERN_ERR "pdc202xx_new: "
	"Unknown speed %d ignored\n", speed);
	}
	} else if (speed == XFER_UDMA_2) {
	/* Set tHOLD bit to 0 if using UDMA mode 2 */
	u8 tmp = get_indexed_reg(hwif, 0x10 + adj);

	set_indexed_reg(hwif, 0x10 + adj, tmp & 0x7f);
	}

	return err;
	}

	static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
	{
	pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
	(void)pdcnew_tune_chipset(drive, XFER_PIO_0 + pio);
	}

	static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
	{
	return get_indexed_reg(hwif, 0x0b) & 0x04;
	}

	static int config_chipset_for_dma(ide_drive_t *drive)
	{
	struct hd_driveid *id = drive->id;
	ide_hwif_t *hwif = HWIF(drive);
	u8 ultra_66 = (id->dma_ultra & 0x0078) ? 1 : 0;
	u8 cable = pdcnew_cable_detect(hwif);
	u8 speed;

	if (ultra_66 && cable) {
	printk(KERN_WARNING "Warning: %s channel "
	"requires an 80-pin cable for operation.\n",
	hwif->channel ? "Secondary" : "Primary");
	printk(KERN_WARNING "%s reduced to Ultra33 mode.\n", drive->name);
	}

	if (drive->media != ide_disk)
	return 0;

	if (id->capability & 4) {
	/*
	* Set IORDY_EN & PREFETCH_EN (this seems to have
	* NO real effect since this register is reloaded
	* by hardware when the transfer mode is selected)
	*/
	u8 tmp, adj = (drive->dn & 1) ? 0x08 : 0x00;

	tmp = get_indexed_reg(hwif, 0x13 + adj);
	set_indexed_reg(hwif, 0x13 + adj, tmp \| 0x03);
	}

	speed = ide_dma_speed(drive, pdcnew_ratemask(drive));

	if (!speed)
	return 0;

	(void) hwif->speedproc(drive, speed);
	return ide_dma_enable(drive);
	}

	static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
	{
	ide_hwif_t *hwif = HWIF(drive);
	struct hd_driveid *id = drive->id;

	drive->init_speed = 0;

	if ((id->capability & 1) && drive->autodma) {

	if (ide_use_dma(drive) && config_chipset_for_dma(drive))
	return hwif->ide_dma_on(drive);

	goto fast_ata_pio;

	} else if ((id->capability & 8) \|\| (id->field_valid & 2)) {
	fast_ata_pio:
	hwif->tuneproc(drive, 255);
	return hwif->ide_dma_off_quietly(drive);
	}
	/* IORDY not supported */
	return 0;
	}

	static int pdcnew_quirkproc(ide_drive_t *drive)
	{
	return check_in_drive_lists(drive, pdc_quirk_drives);
	}

	static void pdcnew_reset(ide_drive_t *drive)
	{
	/*
	* Deleted this because it is redundant from the caller.
	*/
	printk(KERN_WARNING "pdc202xx_new: %s channel reset.\n",
	HWIF(drive)->channel ? "Secondary" : "Primary");
	}

	/**
	* read_counter - Read the byte count registers
	* @dma_base: for the port address
	*/
	static long __devinit read_counter(u32 dma_base)
	{
	u32 pri_dma_base = dma_base, sec_dma_base = dma_base + 0x08;
	u8 cnt0, cnt1, cnt2, cnt3;
	long count = 0, last;
	int retry = 3;

	do {
	last = count;

	/* Read the current count */
	outb(0x20, pri_dma_base + 0x01);
	cnt0 = inb(pri_dma_base + 0x03);
	outb(0x21, pri_dma_base + 0x01);
	cnt1 = inb(pri_dma_base + 0x03);
	outb(0x20, sec_dma_base + 0x01);
	cnt2 = inb(sec_dma_base + 0x03);
	outb(0x21, sec_dma_base + 0x01);
	cnt3 = inb(sec_dma_base + 0x03);

	count = (cnt3 << 23) \| (cnt2 << 15) \| (cnt1 << 8) \| cnt0;

	/*
	* The 30-bit decrementing counter is read in 4 pieces.
	* Incorrect value may be read when the most significant bytes
	* are changing...
	*/
	} while (retry-- && (((last ^ count) & 0x3fff8000) \|\| last < count));

	DBG("cnt0[%02X] cnt1[%02X] cnt2[%02X] cnt3[%02X]\n",
	cnt0, cnt1, cnt2, cnt3);

	return count;
	}

	/**
	* detect_pll_input_clock - Detect the PLL input clock in Hz.
	* @dma_base: for the port address
	* E.g. 16949000 on 33 MHz PCI bus, i.e. half of the PCI clock.
	*/
	static long __devinit detect_pll_input_clock(unsigned long dma_base)
	{
	long start_count, end_count;
	long pll_input;
	u8 scr1;

	start_count = read_counter(dma_base);

	/* Start the test mode */
	outb(0x01, dma_base + 0x01);
	scr1 = inb(dma_base + 0x03);
	DBG("scr1[%02X]\n", scr1);
	outb(scr1 \| 0x40, dma_base + 0x03);

	/* Let the counter run for 10 ms. */
	mdelay(10);

	end_count = read_counter(dma_base);

	/* Stop the test mode */
	outb(0x01, dma_base + 0x01);
	scr1 = inb(dma_base + 0x03);
	DBG("scr1[%02X]\n", scr1);
	outb(scr1 & ~0x40, dma_base + 0x03);

	/*
	* Calculate the input clock in Hz
	* (the clock counter is 30 bit wide and counts down)
	*/
	pll_input = ((start_count - end_count) & 0x3ffffff) * 100;

	DBG("start[%ld] end[%ld]\n", start_count, end_count);

	return pll_input;
	}

	#ifdef CONFIG_PPC_PMAC
	static void __devinit apple_kiwi_init(struct pci_dev *pdev)
	{
	struct device_node *np = pci_device_to_OF_node(pdev);
	unsigned int class_rev = 0;
	u8 conf;

	if (np == NULL \|\| !device_is_compatible(np, "kiwi-root"))
	return;

	pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
	class_rev &= 0xff;

	if (class_rev >= 0x03) {
	/* Setup chip magic config stuff (from darwin) */
	pci_read_config_byte (pdev, 0x40, &conf);
	pci_write_config_byte(pdev, 0x40, (conf \| 0x01));
	}
	}
	#endif /* CONFIG_PPC_PMAC */

	static unsigned int __devinit init_chipset_pdcnew(struct pci_dev dev, const char name)
	{
	unsigned long dma_base = pci_resource_start(dev, 4);
	unsigned long sec_dma_base = dma_base + 0x08;
	long pll_input, pll_output, ratio;
	int f, r;
	u8 pll_ctl0, pll_ctl1;

	if (dev->resource[PCI_ROM_RESOURCE].start) {
	pci_write_config_dword(dev, PCI_ROM_ADDRESS,
	dev->resource[PCI_ROM_RESOURCE].start \| PCI_ROM_ADDRESS_ENABLE);
	printk(KERN_INFO "%s: ROM enabled at 0x%08lx\n", name,
	(unsigned long)dev->resource[PCI_ROM_RESOURCE].start);
	}

	#ifdef CONFIG_PPC_PMAC
	apple_kiwi_init(dev);
	#endif

	/* Calculate the required PLL output frequency */
	switch(max_dma_rate(dev)) {
	case 4: /* it's 133 MHz for Ultra133 chips */
	pll_output = 133333333;
	break;
	case 3: /* and 100 MHz for Ultra100 chips */
	default:
	pll_output = 100000000;
	break;
	}

	/*
	* Detect PLL input clock.
	* On some systems, where PCI bus is running at non-standard clock rate
	* (e.g. 25 or 40 MHz), we have to adjust the cycle time.
	* PDC20268 and newer chips employ PLL circuit to help correct timing
	* registers setting.
	*/
	pll_input = detect_pll_input_clock(dma_base);
	printk("%s: PLL input clock is %ld kHz\n", name, pll_input / 1000);

	/* Sanity check */
	if (unlikely(pll_input < 5000000L \|\| pll_input > 70000000L)) {
	printk(KERN_ERR "%s: Bad PLL input clock %ld Hz, giving up!\n",
	name, pll_input);
	goto out;
	}

	#ifdef DEBUG
	DBG("pll_output is %ld Hz\n", pll_output);

	/* Show the current clock value of PLL control register
	* (maybe already configured by the BIOS)
	*/
	outb(0x02, sec_dma_base + 0x01);
	pll_ctl0 = inb(sec_dma_base + 0x03);
	outb(0x03, sec_dma_base + 0x01);
	pll_ctl1 = inb(sec_dma_base + 0x03);

	DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
	#endif

	/*
	* Calculate the ratio of F, R and NO
	* POUT = (F + 2) / (( R + 2) * NO)
	*/
	ratio = pll_output / (pll_input / 1000);
	if (ratio < 8600L) { /* 8.6x */
	/* Using NO = 0x01, R = 0x0d */
	r = 0x0d;
	} else if (ratio < 12900L) { /* 12.9x */
	/* Using NO = 0x01, R = 0x08 */
	r = 0x08;
	} else if (ratio < 16100L) { /* 16.1x */
	/* Using NO = 0x01, R = 0x06 */
	r = 0x06;
	} else if (ratio < 64000L) { /* 64x */
	r = 0x00;
	} else {
	/* Invalid ratio */
	printk(KERN_ERR "%s: Bad ratio %ld, giving up!\n", name, ratio);
	goto out;
	}

	f = (ratio * (r + 2)) / 1000 - 2;

	DBG("F[%d] R[%d] ratio*1000[%ld]\n", f, r, ratio);

	if (unlikely(f < 0 \|\| f > 127)) {
	/* Invalid F */
	printk(KERN_ERR "%s: F[%d] invalid!\n", name, f);
	goto out;
	}

	pll_ctl0 = (u8) f;
	pll_ctl1 = (u8) r;

	DBG("Writing pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);

	outb(0x02, sec_dma_base + 0x01);
	outb(pll_ctl0, sec_dma_base + 0x03);
	outb(0x03, sec_dma_base + 0x01);
	outb(pll_ctl1, sec_dma_base + 0x03);

	/* Wait the PLL circuit to be stable */
	mdelay(30);

	#ifdef DEBUG
	/*
	* Show the current clock value of PLL control register
	*/
	outb(0x02, sec_dma_base + 0x01);
	pll_ctl0 = inb(sec_dma_base + 0x03);
	outb(0x03, sec_dma_base + 0x01);
	pll_ctl1 = inb(sec_dma_base + 0x03);

	DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
	#endif

	out:
	return dev->irq;
	}

	static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
	{
	hwif->autodma = 0;

	hwif->tuneproc = &pdcnew_tune_drive;
	hwif->quirkproc = &pdcnew_quirkproc;
	hwif->speedproc = &pdcnew_tune_chipset;
	hwif->resetproc = &pdcnew_reset;

	hwif->drives[0].autotune = hwif->drives[1].autotune = 1;

	hwif->ultra_mask = 0x7f;
	hwif->mwdma_mask = 0x07;

	hwif->err_stops_fifo = 1;

	hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;

	if (!hwif->udma_four)
	hwif->udma_four = pdcnew_cable_detect(hwif) ? 0 : 1;

	if (!noautodma)
	hwif->autodma = 1;
	hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;

	#if PDC202_DEBUG_CABLE
	printk(KERN_DEBUG "%s: %s-pin cable\n",
	hwif->name, hwif->udma_four ? "80" : "40");
	#endif /* PDC202_DEBUG_CABLE */
	}

	static int __devinit init_setup_pdcnew(struct pci_dev dev, ide_pci_device_t d)
	{
	return ide_setup_pci_device(dev, d);
	}

	static int __devinit init_setup_pdc20270(struct pci_dev *dev,
	ide_pci_device_t *d)
	{
	struct pci_dev *findev = NULL;
	int ret;

	if ((dev->bus->self &&
	dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
	(dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
	if (PCI_SLOT(dev->devfn) & 2)
	return -ENODEV;
	d->extra = 0;
	while ((findev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
	if ((findev->vendor == dev->vendor) &&
	(findev->device == dev->device) &&
	(PCI_SLOT(findev->devfn) & 2)) {
	if (findev->irq != dev->irq) {
	findev->irq = dev->irq;
	}
	ret = ide_setup_pci_devices(dev, findev, d);
	pci_dev_put(findev);
	return ret;
	}
	}
	}
	return ide_setup_pci_device(dev, d);
	}

	static int __devinit init_setup_pdc20276(struct pci_dev *dev,
	ide_pci_device_t *d)
	{
	if ((dev->bus->self) &&
	(dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
	((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) \|\|
	(dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
	printk(KERN_INFO "ide: Skipping Promise PDC20276 "
	"attached to I2O RAID controller.\n");
	return -ENODEV;
	}
	return ide_setup_pci_device(dev, d);
	}

	static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
	{ /* 0 */
	.name = "PDC20268",
	.init_setup = init_setup_pdcnew,
	.init_chipset = init_chipset_pdcnew,
	.init_hwif = init_hwif_pdc202new,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 1 */
	.name = "PDC20269",
	.init_setup = init_setup_pdcnew,
	.init_chipset = init_chipset_pdcnew,
	.init_hwif = init_hwif_pdc202new,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 2 */
	.name = "PDC20270",
	.init_setup = init_setup_pdc20270,
	.init_chipset = init_chipset_pdcnew,
	.init_hwif = init_hwif_pdc202new,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 3 */
	.name = "PDC20271",
	.init_setup = init_setup_pdcnew,
	.init_chipset = init_chipset_pdcnew,
	.init_hwif = init_hwif_pdc202new,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 4 */
	.name = "PDC20275",
	.init_setup = init_setup_pdcnew,
	.init_chipset = init_chipset_pdcnew,
	.init_hwif = init_hwif_pdc202new,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 5 */
	.name = "PDC20276",
	.init_setup = init_setup_pdc20276,
	.init_chipset = init_chipset_pdcnew,
	.init_hwif = init_hwif_pdc202new,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	},{ /* 6 */
	.name = "PDC20277",
	.init_setup = init_setup_pdcnew,
	.init_chipset = init_chipset_pdcnew,
	.init_hwif = init_hwif_pdc202new,
	.channels = 2,
	.autodma = AUTODMA,
	.bootable = OFF_BOARD,
	}
	};

	/**
	* pdc202new_init_one - called when a pdc202xx is found
	* @dev: the pdc202new device
	* @id: the matching pci id
	*
	* Called when the PCI registration layer (or the IDE initialization)
	* finds a device matching our IDE device tables.
	*/

	static int __devinit pdc202new_init_one(struct pci_dev dev, const struct pci_device_id id)
	{
	ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];

	return d->init_setup(dev, d);
	}

	static struct pci_device_id pdc202new_pci_tbl[] = {
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
	{ 0, },
	};
	MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);

	static struct pci_driver driver = {
	.name = "Promise_IDE",
	.id_table = pdc202new_pci_tbl,
	.probe = pdc202new_init_one,
	};

	static int __init pdc202new_ide_init(void)
	{
	return ide_pci_register_driver(&driver);
	}

	module_init(pdc202new_ide_init);

	MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
	MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
	MODULE_LICENSE("GPL");