drivers/ide/pci/pdc202xx_new.c - android_kernel_htc_msm8960 - 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>
  *  Portions Copyright (C) 1999 Promise Technology, Inc.
  *  Author: Frank Tiernan (frankt@promise.com)
  *  Released under terms of General Public License
  */

 #include <linux/config.h>
 #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

 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
 };

 #define set_2regs(a, b)					\
 	do {						\
 		hwif->OUTB((a + adj), indexreg);	\
 		hwif->OUTB(b, datareg);			\
 	} while(0)

 #define set_ultra(a, b, c)				\
 	do {						\
 		set_2regs(0x10,(a));			\
 		set_2regs(0x11,(b));			\
 		set_2regs(0x12,(c));			\
 	} while(0)

 #define set_ata2(a, b)					\
 	do {						\
 		set_2regs(0x0e,(a));			\
 		set_2regs(0x0f,(b));			\
 	} while(0)

 #define set_pio(a, b, c)				\
 	do { 						\
 		set_2regs(0x0c,(a));			\
 		set_2regs(0x0d,(b));			\
 		set_2regs(0x13,(c));			\
 	} while(0)

 static u8 pdcnew_ratemask (ide_drive_t *drive)
 {
 	u8 mode;

 	switch(HWIF(drive)->pci_dev->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;
 	}
 	if (!eighty_ninty_three(drive))
 		mode = min(mode, (u8)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;
 }

 static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
 {
 	ide_hwif_t *hwif	= HWIF(drive);
 	unsigned long indexreg	= hwif->dma_vendor1;
 	unsigned long datareg	= hwif->dma_vendor3;
 	u8 thold		= 0x10;
 	u8 adj			= (drive->dn%2) ? 0x08 : 0x00;
 	u8 speed		= ide_rate_filter(pdcnew_ratemask(drive), xferspeed);

 	if (speed == XFER_UDMA_2) {
 		hwif->OUTB((thold + adj), indexreg);
 		hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg);
 	}

 	switch (speed) {
 		case XFER_UDMA_7:
 			speed = XFER_UDMA_6;
 		case XFER_UDMA_6:	set_ultra(0x1a, 0x01, 0xcb); break;
 		case XFER_UDMA_5:	set_ultra(0x1a, 0x02, 0xcb); break;
 		case XFER_UDMA_4:	set_ultra(0x1a, 0x03, 0xcd); break;
 		case XFER_UDMA_3:	set_ultra(0x1a, 0x05, 0xcd); break;
 		case XFER_UDMA_2:	set_ultra(0x2a, 0x07, 0xcd); break;
 		case XFER_UDMA_1:	set_ultra(0x3a, 0x0a, 0xd0); break;
 		case XFER_UDMA_0:	set_ultra(0x4a, 0x0f, 0xd5); break;
 		case XFER_MW_DMA_2:	set_ata2(0x69, 0x25); break;
 		case XFER_MW_DMA_1:	set_ata2(0x6b, 0x27); break;
 		case XFER_MW_DMA_0:	set_ata2(0xdf, 0x5f); break;
 		case XFER_PIO_4:	set_pio(0x23, 0x09, 0x25); break;
 		case XFER_PIO_3:	set_pio(0x27, 0x0d, 0x35); break;
 		case XFER_PIO_2:	set_pio(0x23, 0x26, 0x64); break;
 		case XFER_PIO_1:	set_pio(0x46, 0x29, 0xa4); break;
 		case XFER_PIO_0:	set_pio(0xfb, 0x2b, 0xac); break;
 		default:
 			;
 	}

 	return (ide_config_drive_speed(drive, speed));
 }

 /*   0    1    2    3    4    5    6   7   8
  * 960, 480, 390, 300, 240, 180, 120, 90, 60
  *           180, 150, 120,  90,  60
  * DMA_Speed
  * 180, 120,  90,  90,  90,  60,  30
  *  11,   5,   4,   3,   2,   1,   0
  */
 static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
 {
 	u8 speed;

 	if (pio == 5) pio = 4;
 	speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);

 	(void)pdcnew_new_tune_chipset(drive, speed);
 }

 static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
 {
 	hwif->OUTB(0x0b, hwif->dma_vendor1);
 	return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04)));
 }
 static int config_chipset_for_dma (ide_drive_t *drive)
 {
 	struct hd_driveid *id	= drive->id;
 	ide_hwif_t *hwif	= HWIF(drive);
 	u8 speed		= -1;
 	u8 cable;

 	u8 ultra_66		= ((id->dma_ultra & 0x0010) ||
 				   (id->dma_ultra & 0x0008)) ? 1 : 0;

 	cable = pdcnew_new_cable_detect(hwif);

 	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) {	/* IORDY_EN & PREFETCH_EN */
 		hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1);
 		hwif->OUTB((hwif->INB(hwif->dma_vendor3)|0x03), hwif->dma_vendor3);
 	}

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

 	if (!(speed)) {
 		hwif->tuneproc(drive, 5);
 		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 && (id->capability & 1) && drive->autodma) {

 		if (ide_use_dma(drive)) {
 			if (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, 5);
 		return hwif->ide_dma_off_quietly(drive);
 	}
 	/* IORDY not supported */
 	return 0;
 }

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

 static int pdcnew_ide_dma_lostirq(ide_drive_t *drive)
 {
 	if (HWIF(drive)->resetproc != NULL)
 		HWIF(drive)->resetproc(drive);
 	return __ide_dma_lostirq(drive);
 }

 static int pdcnew_ide_dma_timeout(ide_drive_t *drive)
 {
 	if (HWIF(drive)->resetproc != NULL)
 		HWIF(drive)->resetproc(drive);
 	return __ide_dma_timeout(drive);
 }

 static void pdcnew_new_reset (ide_drive_t *drive)
 {
 	/*
 	 * Deleted this because it is redundant from the caller.
 	 */
 	printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
 		HWIF(drive)->channel ? "Secondary" : "Primary");
 }

 #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;
 	void __iomem *mmio;
 	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);
 	}
 	mmio = ioremap(pci_resource_start(pdev, 5),
 				      pci_resource_len(pdev, 5));

 	/* Setup some PLL stuffs */
 	switch (pdev->device) {
 	case PCI_DEVICE_ID_PROMISE_20270:
 		writew(0x0d2b, mmio + 0x1202);
 		mdelay(30);
 		break;
 	case PCI_DEVICE_ID_PROMISE_20271:
 		writew(0x0826, mmio + 0x1202);
 		mdelay(30);
 		break;
 	}

 	iounmap(mmio);
 }
 #endif /* CONFIG_PPC_PMAC */

 static unsigned int __devinit init_chipset_pdcnew(struct pci_dev *dev, const char *name)
 {
 	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, dev->resource[PCI_ROM_RESOURCE].start);
 	}

 #ifdef CONFIG_PPC_PMAC
 	apple_kiwi_init(dev);
 #endif

 	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_new_tune_chipset;
 	hwif->resetproc = &pdcnew_new_reset;

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

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

 	hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
 	hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
 	hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
 	if (!(hwif->udma_four))
 		hwif->udma_four = (pdcnew_new_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;

 	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_find_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;
 				}
 				return ide_setup_pci_devices(dev, findev, d);
 			}
 		}
 	}
 	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 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>
	* Portions Copyright (C) 1999 Promise Technology, Inc.
	* Author: Frank Tiernan (frankt@promise.com)
	* Released under terms of General Public License
	*/

	#include <linux/config.h>
	#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

	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
	};

	#define set_2regs(a, b) \
	do { \
	hwif->OUTB((a + adj), indexreg); \
	hwif->OUTB(b, datareg); \
	} while(0)

	#define set_ultra(a, b, c) \
	do { \
	set_2regs(0x10,(a)); \
	set_2regs(0x11,(b)); \
	set_2regs(0x12,(c)); \
	} while(0)

	#define set_ata2(a, b) \
	do { \
	set_2regs(0x0e,(a)); \
	set_2regs(0x0f,(b)); \
	} while(0)

	#define set_pio(a, b, c) \
	do { \
	set_2regs(0x0c,(a)); \
	set_2regs(0x0d,(b)); \
	set_2regs(0x13,(c)); \
	} while(0)

	static u8 pdcnew_ratemask (ide_drive_t *drive)
	{
	u8 mode;

	switch(HWIF(drive)->pci_dev->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;
	}
	if (!eighty_ninty_three(drive))
	mode = min(mode, (u8)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;
	}

	static int pdcnew_new_tune_chipset (ide_drive_t *drive, u8 xferspeed)
	{
	ide_hwif_t *hwif = HWIF(drive);
	unsigned long indexreg = hwif->dma_vendor1;
	unsigned long datareg = hwif->dma_vendor3;
	u8 thold = 0x10;
	u8 adj = (drive->dn%2) ? 0x08 : 0x00;
	u8 speed = ide_rate_filter(pdcnew_ratemask(drive), xferspeed);

	if (speed == XFER_UDMA_2) {
	hwif->OUTB((thold + adj), indexreg);
	hwif->OUTB((hwif->INB(datareg) & 0x7f), datareg);
	}

	switch (speed) {
	case XFER_UDMA_7:
	speed = XFER_UDMA_6;
	case XFER_UDMA_6: set_ultra(0x1a, 0x01, 0xcb); break;
	case XFER_UDMA_5: set_ultra(0x1a, 0x02, 0xcb); break;
	case XFER_UDMA_4: set_ultra(0x1a, 0x03, 0xcd); break;
	case XFER_UDMA_3: set_ultra(0x1a, 0x05, 0xcd); break;
	case XFER_UDMA_2: set_ultra(0x2a, 0x07, 0xcd); break;
	case XFER_UDMA_1: set_ultra(0x3a, 0x0a, 0xd0); break;
	case XFER_UDMA_0: set_ultra(0x4a, 0x0f, 0xd5); break;
	case XFER_MW_DMA_2: set_ata2(0x69, 0x25); break;
	case XFER_MW_DMA_1: set_ata2(0x6b, 0x27); break;
	case XFER_MW_DMA_0: set_ata2(0xdf, 0x5f); break;
	case XFER_PIO_4: set_pio(0x23, 0x09, 0x25); break;
	case XFER_PIO_3: set_pio(0x27, 0x0d, 0x35); break;
	case XFER_PIO_2: set_pio(0x23, 0x26, 0x64); break;
	case XFER_PIO_1: set_pio(0x46, 0x29, 0xa4); break;
	case XFER_PIO_0: set_pio(0xfb, 0x2b, 0xac); break;
	default:
	;
	}

	return (ide_config_drive_speed(drive, speed));
	}

	/* 0 1 2 3 4 5 6 7 8
	* 960, 480, 390, 300, 240, 180, 120, 90, 60
	* 180, 150, 120, 90, 60
	* DMA_Speed
	* 180, 120, 90, 90, 90, 60, 30
	* 11, 5, 4, 3, 2, 1, 0
	*/
	static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
	{
	u8 speed;

	if (pio == 5) pio = 4;
	speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, pio, NULL);

	(void)pdcnew_new_tune_chipset(drive, speed);
	}

	static u8 pdcnew_new_cable_detect (ide_hwif_t *hwif)
	{
	hwif->OUTB(0x0b, hwif->dma_vendor1);
	return ((u8)((hwif->INB(hwif->dma_vendor3) & 0x04)));
	}
	static int config_chipset_for_dma (ide_drive_t *drive)
	{
	struct hd_driveid *id = drive->id;
	ide_hwif_t *hwif = HWIF(drive);
	u8 speed = -1;
	u8 cable;

	u8 ultra_66 = ((id->dma_ultra & 0x0010) \|\|
	(id->dma_ultra & 0x0008)) ? 1 : 0;

	cable = pdcnew_new_cable_detect(hwif);

	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) { /* IORDY_EN & PREFETCH_EN */
	hwif->OUTB((0x13 + ((drive->dn%2) ? 0x08 : 0x00)), hwif->dma_vendor1);
	hwif->OUTB((hwif->INB(hwif->dma_vendor3)\|0x03), hwif->dma_vendor3);
	}

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

	if (!(speed)) {
	hwif->tuneproc(drive, 5);
	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 && (id->capability & 1) && drive->autodma) {

	if (ide_use_dma(drive)) {
	if (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, 5);
	return hwif->ide_dma_off_quietly(drive);
	}
	/* IORDY not supported */
	return 0;
	}

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

	static int pdcnew_ide_dma_lostirq(ide_drive_t *drive)
	{
	if (HWIF(drive)->resetproc != NULL)
	HWIF(drive)->resetproc(drive);
	return __ide_dma_lostirq(drive);
	}

	static int pdcnew_ide_dma_timeout(ide_drive_t *drive)
	{
	if (HWIF(drive)->resetproc != NULL)
	HWIF(drive)->resetproc(drive);
	return __ide_dma_timeout(drive);
	}

	static void pdcnew_new_reset (ide_drive_t *drive)
	{
	/*
	* Deleted this because it is redundant from the caller.
	*/
	printk(KERN_WARNING "PDC202XX: %s channel reset.\n",
	HWIF(drive)->channel ? "Secondary" : "Primary");
	}

	#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;
	void __iomem *mmio;
	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);
	}
	mmio = ioremap(pci_resource_start(pdev, 5),
	pci_resource_len(pdev, 5));

	/* Setup some PLL stuffs */
	switch (pdev->device) {
	case PCI_DEVICE_ID_PROMISE_20270:
	writew(0x0d2b, mmio + 0x1202);
	mdelay(30);
	break;
	case PCI_DEVICE_ID_PROMISE_20271:
	writew(0x0826, mmio + 0x1202);
	mdelay(30);
	break;
	}

	iounmap(mmio);
	}
	#endif /* CONFIG_PPC_PMAC */

	static unsigned int __devinit init_chipset_pdcnew(struct pci_dev dev, const char name)
	{
	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, dev->resource[PCI_ROM_RESOURCE].start);
	}

	#ifdef CONFIG_PPC_PMAC
	apple_kiwi_init(dev);
	#endif

	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_new_tune_chipset;
	hwif->resetproc = &pdcnew_new_reset;

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

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

	hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
	hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
	hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
	if (!(hwif->udma_four))
	hwif->udma_four = (pdcnew_new_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;

	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_find_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;
	}
	return ide_setup_pci_devices(dev, findev, d);
	}
	}
	}
	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 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");