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linux/drivers/ide/pci/pdc202xx_new.c
Sergei Shtylyov 47694bb86a [PATCH] pdc202xx_new: fix PLL/timing issues 
Fix the CRC errors in the higher UltraDMA modes with the Promise PDC20268
and newer chips that always occur on non-x86 machines and when there are
more than 2 adapters on x86 machines.  Fix the overclocking issue for
PDC20269 and newer chips that occurs when an UltraDMA/133 capable drive is
connected.  Here's the summary of changes:

- add code to detect the PLL input clock detection and setup it output clock,
  remove the PowerMac hacks;

- replace the macros accessing the indexed regiters with functions, switch to
  using them where appropriate, gather the PIO/MWDMA/UDMA timings into tables;

- rewrite the speedproc() handler to set the drive's transfer mode first, and
  then override the timing registers set by hardware on UltraDMA/133 chips;

- use better criterion for determining higher UltraDMA modes, and add comment
  concerning the doubtful value of the code enabling IORDY/prefetch;

- replace the stupid 'pdcnew_new_' prefixes with mere 'pdcnew_';

- get rid of unneded spaces, parens and type casts, clean up some printk's,
  add some new lines here and there...

This work is loosely based on these former patches by Albert Lee:

[1] http://marc.theaimsgroup.com/?l=linux-ide&m=110992442032300
[2] http://marc.theaimsgroup.com/?l=linux-ide&m=110992457729382
[3] http://marc.theaimsgroup.com/?l=linux-ide&m=110992474205555
[4] http://marc.theaimsgroup.com/?l=linux-ide&m=111019224802939

Some PLL clock detection code was backported from his pata_pdc2027x driver...

This code has been successfully tested by me on PDC2026[89] chips.

I tried to keep this rework as several patches but it made no sense: [2] was
largely a modification of the non-working timing override code, [3] by itself
extended the overclocking issue to the case of non-UltraDMA/133 drives, and
finally, the cleanup patch based on [1] ended up rejected...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Albert Lee <albertcc@tw.ibm.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-10 09:55:41 -08:00

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/*
* 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;
}
/* 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)
{
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 && (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, 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 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_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;
hwif->ide_dma_lostirq = &pdcnew_ide_dma_lostirq;
hwif->ide_dma_timeout = &pdcnew_ide_dma_timeout;
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 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");
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