[mirror_ubuntu-artful-kernel.git] / drivers / ide / pci / pdc202xx_new.c

/*
 *  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) 2005-2007		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

#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;
}

/**
 * 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;

	outb(index, hwif->dma_vendor1);
	value = 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)
{
	outb(index, hwif->dma_vendor1);
	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(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);
	(void)pdcnew_tune_chipset(drive, XFER_PIO_0 + pio);
}

static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
{
	if (get_indexed_reg(hwif, 0x0b) & 0x04)
		return ATA_CBL_PATA40;
	else
		return ATA_CBL_PATA80;
}

static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
{
	drive->init_speed = 0;

	if (ide_tune_dma(drive))
		return 0;

	if (ide_use_fast_pio(drive))
		pdcnew_tune_drive(drive, 255);

	return -1;
}

static int pdcnew_quirkproc(ide_drive_t *drive)
{
	const char **list, *model = drive->id->model;

	for (list = pdc_quirk_drives; *list != NULL; list++)
		if (strstr(model, *list) != NULL)
			return 2;
	return 0;
}

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)
{
	struct timeval start_time, end_time;
	long start_count, end_count;
	long pll_input, usec_elapsed;
	u8 scr1;

	start_count = read_counter(dma_base);
	do_gettimeofday(&start_time);

	/* 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);
	do_gettimeofday(&end_time);

	/* 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)
	 */
	usec_elapsed = (end_time.tv_sec - start_time.tv_sec) * 1000000 +
		(end_time.tv_usec - start_time.tv_usec);
	pll_input = ((start_count - end_count) & 0x3fffffff) / 10 *
		(10000000 / usec_elapsed);

	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 || !of_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 (dma_base == 0)
		return -EFAULT;

#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->err_stops_fifo = 1;

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

	if (hwif->dma_base == 0)
		return;

	hwif->atapi_dma  = 1;

	hwif->ultra_mask = hwif->cds->udma_mask;
	hwif->mwdma_mask = 0x07;

	hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;

	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
		hwif->cbl = pdcnew_cable_detect(hwif);

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

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;

		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);
				if (ret < 0)
					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,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.pio_mask	= ATA_PIO4,
		.udma_mask	= 0x3f, /* udma0-5 */
	},{	/* 1 */
		.name		= "PDC20269",
		.init_setup	= init_setup_pdcnew,
		.init_chipset	= init_chipset_pdcnew,
		.init_hwif	= init_hwif_pdc202new,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.pio_mask	= ATA_PIO4,
		.udma_mask	= 0x7f, /* udma0-6*/
	},{	/* 2 */
		.name		= "PDC20270",
		.init_setup	= init_setup_pdc20270,
		.init_chipset	= init_chipset_pdcnew,
		.init_hwif	= init_hwif_pdc202new,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.pio_mask	= ATA_PIO4,
		.udma_mask	= 0x3f, /* udma0-5 */
	},{	/* 3 */
		.name		= "PDC20271",
		.init_setup	= init_setup_pdcnew,
		.init_chipset	= init_chipset_pdcnew,
		.init_hwif	= init_hwif_pdc202new,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.pio_mask	= ATA_PIO4,
		.udma_mask	= 0x7f, /* udma0-6*/
	},{	/* 4 */
		.name		= "PDC20275",
		.init_setup	= init_setup_pdcnew,
		.init_chipset	= init_chipset_pdcnew,
		.init_hwif	= init_hwif_pdc202new,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.pio_mask	= ATA_PIO4,
		.udma_mask	= 0x7f, /* udma0-6*/
	},{	/* 5 */
		.name		= "PDC20276",
		.init_setup	= init_setup_pdc20276,
		.init_chipset	= init_chipset_pdcnew,
		.init_hwif	= init_hwif_pdc202new,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.pio_mask	= ATA_PIO4,
		.udma_mask	= 0x7f, /* udma0-6*/
	},{	/* 6 */
		.name		= "PDC20277",
		.init_setup	= init_setup_pdcnew,
		.init_chipset	= init_chipset_pdcnew,
		.init_hwif	= init_hwif_pdc202new,
		.autodma	= AUTODMA,
		.bootable	= OFF_BOARD,
		.pio_mask	= ATA_PIO4,
		.udma_mask	= 0x7f, /* udma0-6*/
	}
};

/**
 *	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");
Commit	Line	Data
1da177e4 LT	1	/*
	2	* Promise TX2/TX4/TX2000/133 IDE driver
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*
	9	* Split from:
	10	* linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002
	11	* Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>
35198234	12	* Copyright (C) 2005-2007 MontaVista Software, Inc.
1da177e4 LT	13	* Portions Copyright (C) 1999 Promise Technology, Inc.
	14	* Author: Frank Tiernan (frankt@promise.com)
	15	* Released under terms of General Public License
	16	*/
	17
1da177e4 LT	18	#include <linux/module.h>
	19	#include <linux/types.h>
	20	#include <linux/kernel.h>
	21	#include <linux/delay.h>
	22	#include <linux/timer.h>
	23	#include <linux/mm.h>
	24	#include <linux/ioport.h>
	25	#include <linux/blkdev.h>
	26	#include <linux/hdreg.h>
	27	#include <linux/interrupt.h>
	28	#include <linux/pci.h>
	29	#include <linux/init.h>
	30	#include <linux/ide.h>
	31
	32	#include <asm/io.h>
	33	#include <asm/irq.h>
	34
	35	#ifdef CONFIG_PPC_PMAC
	36	#include <asm/prom.h>
	37	#include <asm/pci-bridge.h>
	38	#endif
	39
47694bb8 SS	40	#undef DEBUG
	41
	42	#ifdef DEBUG
	43	#define DBG(fmt, args...) printk("%s: " fmt, __FUNCTION__, ## args)
	44	#else
	45	#define DBG(fmt, args...)
	46	#endif
	47
3c6bee1d	48	static const char *pdc_quirk_drives[] = {
1da177e4 LT	49	"QUANTUM FIREBALLlct08 08",
	50	"QUANTUM FIREBALLP KA6.4",
	51	"QUANTUM FIREBALLP KA9.1",
	52	"QUANTUM FIREBALLP LM20.4",
	53	"QUANTUM FIREBALLP KX13.6",
	54	"QUANTUM FIREBALLP KX20.5",
	55	"QUANTUM FIREBALLP KX27.3",
	56	"QUANTUM FIREBALLP LM20.5",
	57	NULL
	58	};
	59
47694bb8	60	static u8 max_dma_rate(struct pci_dev *pdev)
1da177e4 LT	61	{
	62	u8 mode;
	63
47694bb8	64	switch(pdev->device) {
1da177e4 LT	65	case PCI_DEVICE_ID_PROMISE_20277:
	66	case PCI_DEVICE_ID_PROMISE_20276:
	67	case PCI_DEVICE_ID_PROMISE_20275:
	68	case PCI_DEVICE_ID_PROMISE_20271:
	69	case PCI_DEVICE_ID_PROMISE_20269:
	70	mode = 4;
	71	break;
	72	case PCI_DEVICE_ID_PROMISE_20270:
	73	case PCI_DEVICE_ID_PROMISE_20268:
	74	mode = 3;
	75	break;
	76	default:
	77	return 0;
	78	}
47694bb8	79
1da177e4 LT	80	return mode;
	81	}
	82
47694bb8 SS	83	/**
	84	* get_indexed_reg - Get indexed register
	85	* @hwif: for the port address
	86	* @index: index of the indexed register
	87	*/
	88	static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index)
	89	{
	90	u8 value;
	91
0ecdca26 BZ	92	outb(index, hwif->dma_vendor1);
0ecdca26 BZ	93	value = inb(hwif->dma_vendor3);
47694bb8 SS	94
	95	DBG("index[%02X] value[%02X]\n", index, value);
	96	return value;
	97	}
	98
	99	/**
	100	* set_indexed_reg - Set indexed register
	101	* @hwif: for the port address
	102	* @index: index of the indexed register
	103	*/
	104	static void set_indexed_reg(ide_hwif_t *hwif, u8 index, u8 value)
	105	{
0ecdca26 BZ	106	outb(index, hwif->dma_vendor1);
0ecdca26 BZ	107	outb(value, hwif->dma_vendor3);
47694bb8 SS	108	DBG("index[%02X] value[%02X]\n", index, value);
	109	}
	110
	111	/*
	112	* ATA Timing Tables based on 133 MHz PLL output clock.
	113	*
	114	* If the PLL outputs 100 MHz clock, the ASIC hardware will set
	115	* the timing registers automatically when "set features" command is
	116	* issued to the device. However, if the PLL output clock is 133 MHz,
	117	* the following tables must be used.
	118	*/
	119	static struct pio_timing {
	120	u8 reg0c, reg0d, reg13;
	121	} pio_timings [] = {
	122	{ 0xfb, 0x2b, 0xac }, /* PIO mode 0, IORDY off, Prefetch off */
	123	{ 0x46, 0x29, 0xa4 }, /* PIO mode 1, IORDY off, Prefetch off */
	124	{ 0x23, 0x26, 0x64 }, /* PIO mode 2, IORDY off, Prefetch off */
	125	{ 0x27, 0x0d, 0x35 }, /* PIO mode 3, IORDY on, Prefetch off */
	126	{ 0x23, 0x09, 0x25 }, /* PIO mode 4, IORDY on, Prefetch off */
	127	};
	128
	129	static struct mwdma_timing {
	130	u8 reg0e, reg0f;
	131	} mwdma_timings [] = {
	132	{ 0xdf, 0x5f }, /* MWDMA mode 0 */
	133	{ 0x6b, 0x27 }, /* MWDMA mode 1 */
	134	{ 0x69, 0x25 }, /* MWDMA mode 2 */
	135	};
	136
	137	static struct udma_timing {
	138	u8 reg10, reg11, reg12;
	139	} udma_timings [] = {
	140	{ 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */
	141	{ 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */
	142	{ 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */
	143	{ 0x1a, 0x05, 0xcd }, /* UDMA mode 3 */
	144	{ 0x1a, 0x03, 0xcd }, /* UDMA mode 4 */
	145	{ 0x1a, 0x02, 0xcb }, /* UDMA mode 5 */
	146	{ 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */
	147	};
	148
	149	static int pdcnew_tune_chipset(ide_drive_t *drive, u8 speed)
1da177e4 LT	150	{
1da177e4 LT	151	ide_hwif_t *hwif = HWIF(drive);
47694bb8 SS	152	u8 adj = (drive->dn & 1) ? 0x08 : 0x00;
47694bb8 SS	153	int err;
1da177e4	154
2d5eaa6d	155	speed = ide_rate_filter(drive, speed);
1da177e4	156
47694bb8 SS	157	/*
	158	* Issue SETFEATURES_XFER to the drive first. PDC202xx hardware will
	159	* automatically set the timing registers based on 100 MHz PLL output.
	160	*/
	161	err = ide_config_drive_speed(drive, speed);
	162
	163	/*
	164	* As we set up the PLL to output 133 MHz for UltraDMA/133 capable
	165	* chips, we must override the default register settings...
	166	*/
	167	if (max_dma_rate(hwif->pci_dev) == 4) {
	168	u8 mode = speed & 0x07;
	169
	170	switch (speed) {
	171	case XFER_UDMA_6:
	172	case XFER_UDMA_5:
	173	case XFER_UDMA_4:
	174	case XFER_UDMA_3:
	175	case XFER_UDMA_2:
	176	case XFER_UDMA_1:
	177	case XFER_UDMA_0:
	178	set_indexed_reg(hwif, 0x10 + adj,
	179	udma_timings[mode].reg10);
	180	set_indexed_reg(hwif, 0x11 + adj,
	181	udma_timings[mode].reg11);
	182	set_indexed_reg(hwif, 0x12 + adj,
	183	udma_timings[mode].reg12);
	184	break;
	185
	186	case XFER_MW_DMA_2:
	187	case XFER_MW_DMA_1:
	188	case XFER_MW_DMA_0:
	189	set_indexed_reg(hwif, 0x0e + adj,
	190	mwdma_timings[mode].reg0e);
	191	set_indexed_reg(hwif, 0x0f + adj,
	192	mwdma_timings[mode].reg0f);
	193	break;
	194	case XFER_PIO_4:
	195	case XFER_PIO_3:
	196	case XFER_PIO_2:
	197	case XFER_PIO_1:
	198	case XFER_PIO_0:
	199	set_indexed_reg(hwif, 0x0c + adj,
	200	pio_timings[mode].reg0c);
	201	set_indexed_reg(hwif, 0x0d + adj,
	202	pio_timings[mode].reg0d);
	203	set_indexed_reg(hwif, 0x13 + adj,
	204	pio_timings[mode].reg13);
	205	break;
	206	default:
	207	printk(KERN_ERR "pdc202xx_new: "
	208	"Unknown speed %d ignored\n", speed);
	209	}
	210	} else if (speed == XFER_UDMA_2) {
	211	/* Set tHOLD bit to 0 if using UDMA mode 2 */
	212	u8 tmp = get_indexed_reg(hwif, 0x10 + adj);
	213
	214	set_indexed_reg(hwif, 0x10 + adj, tmp & 0x7f);
	215	}
	216
	217	return err;
1da177e4 LT	218	}
1da177e4 LT	219
1da177e4 LT	220	static void pdcnew_tune_drive(ide_drive_t *drive, u8 pio)
1da177e4 LT	221	{
2134758d	222	pio = ide_get_best_pio_mode(drive, pio, 4);
47694bb8	223	(void)pdcnew_tune_chipset(drive, XFER_PIO_0 + pio);
1da177e4 LT	224	}
1da177e4 LT	225
47694bb8	226	static u8 pdcnew_cable_detect(ide_hwif_t *hwif)
1da177e4	227	{
49521f97 BZ	228	if (get_indexed_reg(hwif, 0x0b) & 0x04)
	229	return ATA_CBL_PATA40;
	230	else
	231	return ATA_CBL_PATA80;
1da177e4	232	}
47694bb8	233
47694bb8	234	static int pdcnew_config_drive_xfer_rate(ide_drive_t *drive)
1da177e4	235	{
1da177e4 LT	236	drive->init_speed = 0;
1da177e4 LT	237
7f86723a	238	if (ide_tune_dma(drive))
3608b5d7	239	return 0;
1da177e4	240
d8f4469d	241	if (ide_use_fast_pio(drive))
3608b5d7	242	pdcnew_tune_drive(drive, 255);
d8f4469d	243
3608b5d7	244	return -1;
1da177e4 LT	245	}
1da177e4 LT	246
47694bb8	247	static int pdcnew_quirkproc(ide_drive_t *drive)
1da177e4	248	{
d24ec426 SS	249	const char *list, model = drive->id->model;
	250
	251	for (list = pdc_quirk_drives; *list != NULL; list++)
	252	if (strstr(model, *list) != NULL)
	253	return 2;
	254	return 0;
1da177e4 LT	255	}
1da177e4 LT	256
47694bb8	257	static void pdcnew_reset(ide_drive_t *drive)
1da177e4 LT	258	{
	259	/*
	260	* Deleted this because it is redundant from the caller.
	261	*/
47694bb8	262	printk(KERN_WARNING "pdc202xx_new: %s channel reset.\n",
1da177e4 LT	263	HWIF(drive)->channel ? "Secondary" : "Primary");
	264	}
	265
47694bb8 SS	266	/**
	267	* read_counter - Read the byte count registers
	268	* @dma_base: for the port address
	269	*/
	270	static long __devinit read_counter(u32 dma_base)
	271	{
	272	u32 pri_dma_base = dma_base, sec_dma_base = dma_base + 0x08;
	273	u8 cnt0, cnt1, cnt2, cnt3;
	274	long count = 0, last;
	275	int retry = 3;
	276
	277	do {
	278	last = count;
	279
	280	/* Read the current count */
	281	outb(0x20, pri_dma_base + 0x01);
	282	cnt0 = inb(pri_dma_base + 0x03);
	283	outb(0x21, pri_dma_base + 0x01);
	284	cnt1 = inb(pri_dma_base + 0x03);
	285	outb(0x20, sec_dma_base + 0x01);
	286	cnt2 = inb(sec_dma_base + 0x03);
	287	outb(0x21, sec_dma_base + 0x01);
	288	cnt3 = inb(sec_dma_base + 0x03);
	289
	290	count = (cnt3 << 23) \| (cnt2 << 15) \| (cnt1 << 8) \| cnt0;
	291
	292	/*
	293	* The 30-bit decrementing counter is read in 4 pieces.
	294	* Incorrect value may be read when the most significant bytes
	295	* are changing...
	296	*/
	297	} while (retry-- && (((last ^ count) & 0x3fff8000) \|\| last < count));
	298
	299	DBG("cnt0[%02X] cnt1[%02X] cnt2[%02X] cnt3[%02X]\n",
	300	cnt0, cnt1, cnt2, cnt3);
	301
	302	return count;
	303	}
	304
	305	/**
	306	* detect_pll_input_clock - Detect the PLL input clock in Hz.
	307	* @dma_base: for the port address
	308	* E.g. 16949000 on 33 MHz PCI bus, i.e. half of the PCI clock.
	309	*/
	310	static long __devinit detect_pll_input_clock(unsigned long dma_base)
	311	{
8006bf56	312	struct timeval start_time, end_time;
47694bb8	313	long start_count, end_count;
8006bf56	314	long pll_input, usec_elapsed;
47694bb8 SS	315	u8 scr1;
	316
	317	start_count = read_counter(dma_base);
8006bf56	318	do_gettimeofday(&start_time);
47694bb8 SS	319
	320	/* Start the test mode */
	321	outb(0x01, dma_base + 0x01);
	322	scr1 = inb(dma_base + 0x03);
	323	DBG("scr1[%02X]\n", scr1);
	324	outb(scr1 \| 0x40, dma_base + 0x03);
	325
	326	/* Let the counter run for 10 ms. */
	327	mdelay(10);
	328
	329	end_count = read_counter(dma_base);
8006bf56	330	do_gettimeofday(&end_time);
47694bb8 SS	331
	332	/* Stop the test mode */
	333	outb(0x01, dma_base + 0x01);
	334	scr1 = inb(dma_base + 0x03);
	335	DBG("scr1[%02X]\n", scr1);
	336	outb(scr1 & ~0x40, dma_base + 0x03);
	337
	338	/*
	339	* Calculate the input clock in Hz
	340	* (the clock counter is 30 bit wide and counts down)
	341	*/
8006bf56 AL	342	usec_elapsed = (end_time.tv_sec - start_time.tv_sec) * 1000000 +
8006bf56 AL	343	(end_time.tv_usec - start_time.tv_usec);
56fe23d5	344	pll_input = ((start_count - end_count) & 0x3fffffff) / 10 *
8006bf56	345	(10000000 / usec_elapsed);
47694bb8 SS	346
	347	DBG("start[%ld] end[%ld]\n", start_count, end_count);
	348
	349	return pll_input;
	350	}
	351
1da177e4 LT	352	#ifdef CONFIG_PPC_PMAC
	353	static void __devinit apple_kiwi_init(struct pci_dev *pdev)
	354	{
	355	struct device_node *np = pci_device_to_OF_node(pdev);
	356	unsigned int class_rev = 0;
1da177e4 LT	357	u8 conf;
1da177e4 LT	358
55b61fec	359	if (np == NULL \|\| !of_device_is_compatible(np, "kiwi-root"))
1da177e4 LT	360	return;
	361
	362	pci_read_config_dword(pdev, PCI_CLASS_REVISION, &class_rev);
	363	class_rev &= 0xff;
	364
	365	if (class_rev >= 0x03) {
	366	/* Setup chip magic config stuff (from darwin) */
47694bb8 SS	367	pci_read_config_byte (pdev, 0x40, &conf);
47694bb8 SS	368	pci_write_config_byte(pdev, 0x40, (conf \| 0x01));
1da177e4	369	}
1da177e4 LT	370	}
	371	#endif /* CONFIG_PPC_PMAC */
	372
	373	static unsigned int __devinit init_chipset_pdcnew(struct pci_dev dev, const char name)
	374	{
47694bb8 SS	375	unsigned long dma_base = pci_resource_start(dev, 4);
	376	unsigned long sec_dma_base = dma_base + 0x08;
	377	long pll_input, pll_output, ratio;
	378	int f, r;
	379	u8 pll_ctl0, pll_ctl1;
	380
01cc643a BZ	381	if (dma_base == 0)
	382	return -EFAULT;
	383
1da177e4 LT	384	#ifdef CONFIG_PPC_PMAC
	385	apple_kiwi_init(dev);
	386	#endif
	387
47694bb8 SS	388	/* Calculate the required PLL output frequency */
	389	switch(max_dma_rate(dev)) {
	390	case 4: /* it's 133 MHz for Ultra133 chips */
	391	pll_output = 133333333;
	392	break;
	393	case 3: /* and 100 MHz for Ultra100 chips */
	394	default:
	395	pll_output = 100000000;
	396	break;
	397	}
	398
	399	/*
	400	* Detect PLL input clock.
	401	* On some systems, where PCI bus is running at non-standard clock rate
	402	* (e.g. 25 or 40 MHz), we have to adjust the cycle time.
	403	* PDC20268 and newer chips employ PLL circuit to help correct timing
	404	* registers setting.
	405	*/
	406	pll_input = detect_pll_input_clock(dma_base);
	407	printk("%s: PLL input clock is %ld kHz\n", name, pll_input / 1000);
	408
	409	/* Sanity check */
	410	if (unlikely(pll_input < 5000000L \|\| pll_input > 70000000L)) {
	411	printk(KERN_ERR "%s: Bad PLL input clock %ld Hz, giving up!\n",
	412	name, pll_input);
	413	goto out;
	414	}
	415
	416	#ifdef DEBUG
	417	DBG("pll_output is %ld Hz\n", pll_output);
	418
	419	/* Show the current clock value of PLL control register
	420	* (maybe already configured by the BIOS)
	421	*/
	422	outb(0x02, sec_dma_base + 0x01);
	423	pll_ctl0 = inb(sec_dma_base + 0x03);
	424	outb(0x03, sec_dma_base + 0x01);
	425	pll_ctl1 = inb(sec_dma_base + 0x03);
	426
	427	DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
	428	#endif
	429
	430	/*
	431	* Calculate the ratio of F, R and NO
	432	* POUT = (F + 2) / (( R + 2) * NO)
	433	*/
	434	ratio = pll_output / (pll_input / 1000);
	435	if (ratio < 8600L) { /* 8.6x */
	436	/* Using NO = 0x01, R = 0x0d */
	437	r = 0x0d;
	438	} else if (ratio < 12900L) { /* 12.9x */
	439	/* Using NO = 0x01, R = 0x08 */
	440	r = 0x08;
	441	} else if (ratio < 16100L) { /* 16.1x */
	442	/* Using NO = 0x01, R = 0x06 */
	443	r = 0x06;
	444	} else if (ratio < 64000L) { /* 64x */
	445	r = 0x00;
	446	} else {
	447	/* Invalid ratio */
	448	printk(KERN_ERR "%s: Bad ratio %ld, giving up!\n", name, ratio);
	449	goto out;
	450	}
	451
452	f = (ratio * (r + 2)) / 1000 - 2;
453
454	DBG("F[%d] R[%d] ratio*1000[%ld]\n", f, r, ratio);
455
456	if (unlikely(f < 0 \|\| f > 127)) {
457	/* Invalid F */
458	printk(KERN_ERR "%s: F[%d] invalid!\n", name, f);
459	goto out;
460	}
461
462	pll_ctl0 = (u8) f;
463	pll_ctl1 = (u8) r;
464
465	DBG("Writing pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
466
467	outb(0x02, sec_dma_base + 0x01);
468	outb(pll_ctl0, sec_dma_base + 0x03);
469	outb(0x03, sec_dma_base + 0x01);
470	outb(pll_ctl1, sec_dma_base + 0x03);
471
472	/* Wait the PLL circuit to be stable */
473	mdelay(30);
474
475	#ifdef DEBUG
476	/*
477	* Show the current clock value of PLL control register
478	*/
479	outb(0x02, sec_dma_base + 0x01);
480	pll_ctl0 = inb(sec_dma_base + 0x03);
481	outb(0x03, sec_dma_base + 0x01);
482	pll_ctl1 = inb(sec_dma_base + 0x03);
483
484	DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1);
485	#endif
486
487	out:
1da177e4 LT	488	return dev->irq;
	489	}
	490
	491	static void __devinit init_hwif_pdc202new(ide_hwif_t *hwif)
	492	{
	493	hwif->autodma = 0;
	494
	495	hwif->tuneproc = &pdcnew_tune_drive;
	496	hwif->quirkproc = &pdcnew_quirkproc;
47694bb8 SS	497	hwif->speedproc = &pdcnew_tune_chipset;
47694bb8 SS	498	hwif->resetproc = &pdcnew_reset;
1da177e4	499
01cc643a BZ	500	hwif->err_stops_fifo = 1;
01cc643a BZ	501
1da177e4 LT	502	hwif->drives[0].autotune = hwif->drives[1].autotune = 1;
1da177e4 LT	503
01cc643a BZ	504	if (hwif->dma_base == 0)
	505	return;
	506
362ebd83	507	hwif->atapi_dma = 1;
18137207 BZ	508
18137207 BZ	509	hwif->ultra_mask = hwif->cds->udma_mask;
1da177e4 LT	510	hwif->mwdma_mask = 0x07;
	511
	512	hwif->ide_dma_check = &pdcnew_config_drive_xfer_rate;
47694bb8	513
49521f97 BZ	514	if (hwif->cbl != ATA_CBL_PATA40_SHORT)
49521f97 BZ	515	hwif->cbl = pdcnew_cable_detect(hwif);
47694bb8	516
1da177e4 LT	517	if (!noautodma)
	518	hwif->autodma = 1;
	519	hwif->drives[0].autodma = hwif->drives[1].autodma = hwif->autodma;
1da177e4 LT	520	}
	521
	522	static int __devinit init_setup_pdcnew(struct pci_dev dev, ide_pci_device_t d)
	523	{
	524	return ide_setup_pci_device(dev, d);
	525	}
	526
	527	static int __devinit init_setup_pdc20270(struct pci_dev *dev,
	528	ide_pci_device_t *d)
	529	{
	530	struct pci_dev *findev = NULL;
b1489009	531	int ret;
1da177e4 LT	532
	533	if ((dev->bus->self &&
	534	dev->bus->self->vendor == PCI_VENDOR_ID_DEC) &&
	535	(dev->bus->self->device == PCI_DEVICE_ID_DEC_21150)) {
	536	if (PCI_SLOT(dev->devfn) & 2)
	537	return -ENODEV;
35198234	538
b1489009	539	while ((findev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, findev)) != NULL) {
1da177e4 LT	540	if ((findev->vendor == dev->vendor) &&
	541	(findev->device == dev->device) &&
	542	(PCI_SLOT(findev->devfn) & 2)) {
	543	if (findev->irq != dev->irq) {
	544	findev->irq = dev->irq;
	545	}
b1489009	546	ret = ide_setup_pci_devices(dev, findev, d);
35198234 SS	547	if (ret < 0)
35198234 SS	548	pci_dev_put(findev);
b1489009	549	return ret;
1da177e4 LT	550	}
	551	}
	552	}
	553	return ide_setup_pci_device(dev, d);
	554	}
	555
	556	static int __devinit init_setup_pdc20276(struct pci_dev *dev,
	557	ide_pci_device_t *d)
	558	{
	559	if ((dev->bus->self) &&
	560	(dev->bus->self->vendor == PCI_VENDOR_ID_INTEL) &&
	561	((dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960) \|\|
	562	(dev->bus->self->device == PCI_DEVICE_ID_INTEL_I960RM))) {
	563	printk(KERN_INFO "ide: Skipping Promise PDC20276 "
	564	"attached to I2O RAID controller.\n");
	565	return -ENODEV;
	566	}
	567	return ide_setup_pci_device(dev, d);
	568	}
	569
	570	static ide_pci_device_t pdcnew_chipsets[] __devinitdata = {
	571	{ /* 0 */
	572	.name = "PDC20268",
	573	.init_setup = init_setup_pdcnew,
	574	.init_chipset = init_chipset_pdcnew,
	575	.init_hwif = init_hwif_pdc202new,
1da177e4 LT	576	.autodma = AUTODMA,
1da177e4 LT	577	.bootable = OFF_BOARD,
4099d143	578	.pio_mask = ATA_PIO4,
18137207	579	.udma_mask = 0x3f, /* udma0-5 */
1da177e4 LT	580	},{ /* 1 */
	581	.name = "PDC20269",
	582	.init_setup = init_setup_pdcnew,
	583	.init_chipset = init_chipset_pdcnew,
	584	.init_hwif = init_hwif_pdc202new,
1da177e4 LT	585	.autodma = AUTODMA,
1da177e4 LT	586	.bootable = OFF_BOARD,
4099d143	587	.pio_mask = ATA_PIO4,
18137207	588	.udma_mask = 0x7f, /* udma0-6*/
1da177e4 LT	589	},{ /* 2 */
	590	.name = "PDC20270",
	591	.init_setup = init_setup_pdc20270,
	592	.init_chipset = init_chipset_pdcnew,
	593	.init_hwif = init_hwif_pdc202new,
1da177e4	594	.autodma = AUTODMA,
1da177e4	595	.bootable = OFF_BOARD,
4099d143	596	.pio_mask = ATA_PIO4,
18137207	597	.udma_mask = 0x3f, /* udma0-5 */
1da177e4 LT	598	},{ /* 3 */
	599	.name = "PDC20271",
	600	.init_setup = init_setup_pdcnew,
	601	.init_chipset = init_chipset_pdcnew,
	602	.init_hwif = init_hwif_pdc202new,
1da177e4 LT	603	.autodma = AUTODMA,
1da177e4 LT	604	.bootable = OFF_BOARD,
4099d143	605	.pio_mask = ATA_PIO4,
18137207	606	.udma_mask = 0x7f, /* udma0-6*/
1da177e4 LT	607	},{ /* 4 */
	608	.name = "PDC20275",
	609	.init_setup = init_setup_pdcnew,
	610	.init_chipset = init_chipset_pdcnew,
	611	.init_hwif = init_hwif_pdc202new,
1da177e4 LT	612	.autodma = AUTODMA,
1da177e4 LT	613	.bootable = OFF_BOARD,
4099d143	614	.pio_mask = ATA_PIO4,
18137207	615	.udma_mask = 0x7f, /* udma0-6*/
1da177e4 LT	616	},{ /* 5 */
	617	.name = "PDC20276",
	618	.init_setup = init_setup_pdc20276,
	619	.init_chipset = init_chipset_pdcnew,
	620	.init_hwif = init_hwif_pdc202new,
1da177e4	621	.autodma = AUTODMA,
1da177e4	622	.bootable = OFF_BOARD,
4099d143	623	.pio_mask = ATA_PIO4,
18137207	624	.udma_mask = 0x7f, /* udma0-6*/
1da177e4 LT	625	},{ /* 6 */
	626	.name = "PDC20277",
	627	.init_setup = init_setup_pdcnew,
	628	.init_chipset = init_chipset_pdcnew,
	629	.init_hwif = init_hwif_pdc202new,
1da177e4 LT	630	.autodma = AUTODMA,
1da177e4 LT	631	.bootable = OFF_BOARD,
4099d143	632	.pio_mask = ATA_PIO4,
18137207	633	.udma_mask = 0x7f, /* udma0-6*/
1da177e4 LT	634	}
	635	};
	636
	637	/**
	638	* pdc202new_init_one - called when a pdc202xx is found
	639	* @dev: the pdc202new device
	640	* @id: the matching pci id
	641	*
	642	* Called when the PCI registration layer (or the IDE initialization)
	643	* finds a device matching our IDE device tables.
	644	*/
	645
	646	static int __devinit pdc202new_init_one(struct pci_dev dev, const struct pci_device_id id)
	647	{
	648	ide_pci_device_t *d = &pdcnew_chipsets[id->driver_data];
	649
	650	return d->init_setup(dev, d);
	651	}
	652
	653	static struct pci_device_id pdc202new_pci_tbl[] = {
	654	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20268, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
	655	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20269, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
	656	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20270, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
	657	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20271, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
	658	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20275, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
	659	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20276, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
	660	{ PCI_VENDOR_ID_PROMISE, PCI_DEVICE_ID_PROMISE_20277, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 6},
	661	{ 0, },
	662	};
	663	MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl);
	664
	665	static struct pci_driver driver = {
	666	.name = "Promise_IDE",
	667	.id_table = pdc202new_pci_tbl,
	668	.probe = pdc202new_init_one,
	669	};
	670
82ab1eec	671	static int __init pdc202new_ide_init(void)
1da177e4 LT	672	{
	673	return ide_pci_register_driver(&driver);
	674	}
	675
	676	module_init(pdc202new_ide_init);
	677
	678	MODULE_AUTHOR("Andre Hedrick, Frank Tiernan");
	679	MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher");
	680	MODULE_LICENSE("GPL");