it's final version, but why it's not work ?
diff -urN linux-2.4.1-p8-pristine/Documentation/Configure.help 
linux-2.4.1-p8/Documentation/Configure.help
--- linux-2.4.1-p8-pristine/Documentation/Configure.help        Thu Jan 18 01:20:48 
2001
+++ linux-2.4.1-p8/Documentation/Configure.help Thu Jan 18 02:42:37 2001
@@ -673,6 +673,25 @@
 
   If in doubt, say N.
 
+PnP BIOS DMA Forced Enabled
+CONFIG_BLK_DEV_IDEDMA_FORCED
+  If you say Y here, and your DMA original Triton I/II, VIA, ALI
+  fail to setup the DMA address space and it used to work in 2.0.34
+  with the Jumbo Patch series or works in 2.0.39, then you should
+  consider enabling this option.
+
+  If in doubt, say N.
+
+Attempt to HACK around Chipsets that TIMEOUT (EXPERIMENTAL)
+CONFIG_BLK_DEV_IDEDMA_TIMEOUT
+  If you say Y here, this is a NASTY UGLY HACK!
+
+  We have to issue an abort and requeue the request DMA engine got
+  turned off by a goofy ASIC, and we have to clean up the mess, and
+  here is as good as any.  Do it globally for all chipsets.
+
+  If in doubt, say N.
+
 Boot off-board chipsets first support
 CONFIG_BLK_DEV_OFFBOARD
   Normally, IDE controllers built into the motherboard (on-board
@@ -780,18 +799,18 @@
 
   SAY NO!
 
-AMD7409 chipset support
-CONFIG_BLK_DEV_AMD7409
-  This driver ensures (U)DMA support for the AMD756 Viper chipset.
+AMD74XX chipset support
+CONFIG_BLK_DEV_AMD74XX
+  This driver ensures (U)DMA support for the AMD756/765 Viper chipset.
 
   If you say Y here, you also need to say Y to "Use DMA by default
   when available", above.
-  Please read the comments at the top of drivers/ide/amd7409.c
+  Please read the comments at the top of drivers/ide/amd74xx.c
 
   If unsure, say N.
 
 AMD Viper ATA-66 Override support (WIP)
-CONFIG_AMD7409_OVERRIDE
+CONFIG_AMD74XX_OVERRIDE
   This option auto-forces the ata66 flag.
   This effect can be also invoked by calling "idex=ata66"
   If unsure, say N.
diff -urN linux-2.4.1-p8-pristine/drivers/ide/Config.in 
linux-2.4.1-p8/drivers/ide/Config.in
--- linux-2.4.1-p8-pristine/drivers/ide/Config.in       Fri Dec 29 14:07:22 2000
+++ linux-2.4.1-p8/drivers/ide/Config.in        Thu Jan 18 02:42:37 2001
@@ -45,15 +45,18 @@
            bool '    Generic PCI bus-master DMA support' CONFIG_BLK_DEV_IDEDMA_PCI
            bool '    Boot off-board chipsets first support' CONFIG_BLK_DEV_OFFBOARD
            dep_bool '      Use PCI DMA by default when available' 
CONFIG_IDEDMA_PCI_AUTO $CONFIG_BLK_DEV_IDEDMA_PCI
+           dep_bool '      PnP BIOS DMA Forced Enabled' CONFIG_BLK_DEV_IDEDMA_FORCED 
+$CONFIG_BLK_DEV_IDEDMA_PCI
            define_bool CONFIG_BLK_DEV_IDEDMA $CONFIG_BLK_DEV_IDEDMA_PCI
            dep_bool '      ATA Work(s) In Progress (EXPERIMENTAL)' 
CONFIG_IDEDMA_PCI_WIP $CONFIG_BLK_DEV_IDEDMA_PCI $CONFIG_EXPERIMENTAL
            dep_bool '      Good-Bad DMA Model-Firmware (WIP)' 
CONFIG_IDEDMA_NEW_DRIVE_LISTINGS $CONFIG_IDEDMA_PCI_WIP
+           dep_bool '      Attempt to HACK around Chipsets that TIMEOUT (WIP)' 
+CONFIG_BLK_DEV_IDEDMA_TIMEOUT $CONFIG_IDEDMA_PCI_WIP
+
            dep_bool '    AEC62XX chipset support' CONFIG_BLK_DEV_AEC62XX 
$CONFIG_BLK_DEV_IDEDMA_PCI
            dep_mbool '      AEC62XX Tuning support' CONFIG_AEC62XX_TUNING 
$CONFIG_BLK_DEV_AEC62XX
            dep_bool '    ALI M15x3 chipset support' CONFIG_BLK_DEV_ALI15X3 
$CONFIG_BLK_DEV_IDEDMA_PCI
            dep_mbool '      ALI M15x3 WDC support (DANGEROUS)' CONFIG_WDC_ALI15X3 
$CONFIG_BLK_DEV_ALI15X3
-           dep_bool '    AMD Viper support' CONFIG_BLK_DEV_AMD7409 
$CONFIG_BLK_DEV_IDEDMA_PCI
-           dep_mbool '      AMD Viper ATA-66 Override (WIP)' CONFIG_AMD7409_OVERRIDE 
$CONFIG_BLK_DEV_AMD7409 $CONFIG_IDEDMA_PCI_WIP
+           dep_bool '    AMD Viper support' CONFIG_BLK_DEV_AMD74XX 
+$CONFIG_BLK_DEV_IDEDMA_PCI
+           dep_mbool '      AMD Viper ATA-66 Override (WIP)' CONFIG_AMD74XX_OVERRIDE 
+$CONFIG_BLK_DEV_AMD74XX $CONFIG_IDEDMA_PCI_WIP
            dep_bool '    CMD64X chipset support' CONFIG_BLK_DEV_CMD64X 
$CONFIG_BLK_DEV_IDEDMA_PCI
            dep_bool '    CY82C693 chipset support' CONFIG_BLK_DEV_CY82C693 
$CONFIG_BLK_DEV_IDEDMA_PCI
            dep_bool '    Cyrix CS5530 MediaGX chipset support' CONFIG_BLK_DEV_CS5530 
$CONFIG_BLK_DEV_IDEDMA_PCI
@@ -147,7 +150,7 @@
 if [ "$CONFIG_IDE_CHIPSETS" = "y" -o \
      "$CONFIG_BLK_DEV_AEC62XX" = "y" -o \
      "$CONFIG_BLK_DEV_ALI15X3" = "y" -o \
-     "$CONFIG_BLK_DEV_AMD7409" = "y" -o \
+     "$CONFIG_BLK_DEV_AMD74XX" = "y" -o \
      "$CONFIG_BLK_DEV_CMD640" = "y" -o \
      "$CONFIG_BLK_DEV_CMD64X" = "y" -o \
      "$CONFIG_BLK_DEV_CS5530" = "y" -o \
diff -urN linux-2.4.1-p8-pristine/drivers/ide/Makefile 
linux-2.4.1-p8/drivers/ide/Makefile
--- linux-2.4.1-p8-pristine/drivers/ide/Makefile        Fri Dec 29 14:07:22 2000
+++ linux-2.4.1-p8/drivers/ide/Makefile Thu Jan 18 02:42:37 2001
@@ -28,7 +28,7 @@
 ide-obj-$(CONFIG_BLK_DEV_AEC62XX)      += aec62xx.o
 ide-obj-$(CONFIG_BLK_DEV_ALI14XX)      += ali14xx.o
 ide-obj-$(CONFIG_BLK_DEV_ALI15X3)      += alim15x3.o
-ide-obj-$(CONFIG_BLK_DEV_AMD7409)      += amd7409.o
+ide-obj-$(CONFIG_BLK_DEV_AMD74XX)      += amd74xx.o
 ide-obj-$(CONFIG_BLK_DEV_BUDDHA)       += buddha.o
 ide-obj-$(CONFIG_BLK_DEV_CMD640)       += cmd640.o
 ide-obj-$(CONFIG_BLK_DEV_CMD64X)       += cmd64x.o
diff -urN linux-2.4.1-p8-pristine/drivers/ide/amd7409.c 
linux-2.4.1-p8/drivers/ide/amd7409.c
--- linux-2.4.1-p8-pristine/drivers/ide/amd7409.c       Tue Nov  7 11:02:24 2000
+++ linux-2.4.1-p8/drivers/ide/amd7409.c        Wed Dec 31 16:00:00 1969
@@ -1,470 +0,0 @@
-/*
- * linux/drivers/ide/amd7409.c         Version 0.05    June 9, 2000
- *
- * Copyright (C) 1999-2000             Andre Hedrick <[EMAIL PROTECTED]>
- * May be copied or modified under the terms of the GNU General Public License
- *
- */
-
-#include <linux/config.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/init.h>
-#include <linux/pci.h>
-#include <linux/ide.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#include "ide_modes.h"
-
-#define DISPLAY_VIPER_TIMINGS
-
-#if defined(DISPLAY_VIPER_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-static int amd7409_get_info(char *, char **, off_t, int);
-extern int (*amd7409_display_info)(char *, char **, off_t, int); /* ide-proc.c */
-extern char *ide_media_verbose(ide_drive_t *);
-static struct pci_dev *bmide_dev;
-
-static int amd7409_get_info (char *buffer, char **addr, off_t offset, int count)
-{
-       char *p = buffer;
-       u32 bibma = pci_resource_start(bmide_dev, 4);
-       u8 c0 = 0, c1 = 0;
-
-       /*
-        * at that point bibma+0x2 et bibma+0xa are byte registers
-        * to investigate:
-        */
-       c0 = inb_p((unsigned short)bibma + 0x02);
-       c1 = inb_p((unsigned short)bibma + 0x0a);
-
-       p += sprintf(p, "\n                                AMD 7409 VIPER Chipset.\n");
-       p += sprintf(p, "--------------- Primary Channel ---------------- Secondary 
Channel -------------\n");
-       p += sprintf(p, "                %sabled                         %sabled\n",
-                       (c0&0x80) ? "dis" : " en",
-                       (c1&0x80) ? "dis" : " en");
-       p += sprintf(p, "--------------- drive0 --------- drive1 -------- drive0 
---------- drive1 ------\n");
-       p += sprintf(p, "DMA enabled:    %s              %s             %s             
  %s\n",
-                       (c0&0x20) ? "yes" : "no ", (c0&0x40) ? "yes" : "no ",
-                       (c1&0x20) ? "yes" : "no ", (c1&0x40) ? "yes" : "no " );
-       p += sprintf(p, "UDMA\n");
-       p += sprintf(p, "DMA\n");
-       p += sprintf(p, "PIO\n");
-
-       return p-buffer;        /* => must be less than 4k! */
-}
-#endif  /* defined(DISPLAY_VIPER_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-byte amd7409_proc = 0;
-
-extern char *ide_xfer_verbose (byte xfer_rate);
-
-static unsigned int amd7409_swdma_check (struct pci_dev *dev)
-{
-       unsigned int class_rev;
-       pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
-       class_rev &= 0xff;
-       return ((int) (class_rev >= 7) ? 1 : 0);
-}
-
-static int amd7409_swdma_error(ide_drive_t *drive)
-{
-       printk("%s: single-word DMA not support (revision < C4)\n", drive->name);
-       return 0;
-}
-
-/*
- * Here is where all the hard work goes to program the chipset.
- *
- */
-static int amd7409_tune_chipset (ide_drive_t *drive, byte speed)
-{
-       ide_hwif_t *hwif        = HWIF(drive);
-       struct pci_dev *dev     = hwif->pci_dev;
-       int err                 = 0;
-       byte unit               = (drive->select.b.unit & 0x01);
-#ifdef CONFIG_BLK_DEV_IDEDMA
-       unsigned long dma_base  = hwif->dma_base;
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-       byte drive_pci          = 0x00;
-       byte drive_pci2         = 0x00;
-       byte ultra_timing       = 0x00;
-       byte dma_pio_timing     = 0x00;
-       byte pio_timing         = 0x00;
-
-        switch (drive->dn) {
-               case 0: drive_pci = 0x53; drive_pci2 = 0x4b; break;
-               case 1: drive_pci = 0x52; drive_pci2 = 0x4a; break;
-               case 2: drive_pci = 0x51; drive_pci2 = 0x49; break;
-               case 3: drive_pci = 0x50; drive_pci2 = 0x48; break;
-               default:
-                        return -1;
-        }
-
-       pci_read_config_byte(dev, drive_pci, &ultra_timing);
-       pci_read_config_byte(dev, drive_pci2, &dma_pio_timing);
-       pci_read_config_byte(dev, 0x4c, &pio_timing);
-
-#ifdef DEBUG
-       printk("%s: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
-               drive->name, ultra_timing, dma_pio_timing, pio_timing);
-#endif
-
-       ultra_timing &= ~0xC7;
-       dma_pio_timing &= ~0xFF;
-       pio_timing &= ~(0x03 << drive->dn);
-
-#ifdef DEBUG
-       printk(":: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
-               ultra_timing, dma_pio_timing, pio_timing);
-#endif
-
-       switch(speed) {
-#ifdef CONFIG_BLK_DEV_IDEDMA
-               case XFER_UDMA_4:
-                       ultra_timing |= 0x45;
-                       dma_pio_timing |= 0x20;
-                       break;
-               case XFER_UDMA_3:
-                       ultra_timing |= 0x44;
-                       dma_pio_timing |= 0x20;
-                       break;
-               case XFER_UDMA_2:
-                       ultra_timing |= 0x40;
-                       dma_pio_timing |= 0x20;
-                       break;
-               case XFER_UDMA_1:
-                       ultra_timing |= 0x41;
-                       dma_pio_timing |= 0x20;
-                       break;
-               case XFER_UDMA_0:
-                       ultra_timing |= 0x42;
-                       dma_pio_timing |= 0x20;
-                       break;
-               case XFER_MW_DMA_2:
-                       dma_pio_timing |= 0x20;
-                       break;
-               case XFER_MW_DMA_1:
-                       dma_pio_timing |= 0x21;
-                       break;
-               case XFER_MW_DMA_0:
-                       dma_pio_timing |= 0x77;
-                       break;
-               case XFER_SW_DMA_2:
-                       if (!amd7409_swdma_check(dev))
-                               return amd7409_swdma_error(drive);
-                       dma_pio_timing |= 0x42;
-                       break;
-               case XFER_SW_DMA_1:
-                       if (!amd7409_swdma_check(dev))
-                               return amd7409_swdma_error(drive);
-                       dma_pio_timing |= 0x65;
-                       break;
-               case XFER_SW_DMA_0:
-                       if (!amd7409_swdma_check(dev))
-                               return amd7409_swdma_error(drive);
-                       dma_pio_timing |= 0xA8;
-                       break;
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-               case XFER_PIO_4:
-                       dma_pio_timing |= 0x20;
-                       break;
-               case XFER_PIO_3:
-                       dma_pio_timing |= 0x22;
-                       break;
-               case XFER_PIO_2:
-                       dma_pio_timing |= 0x42;
-                       break;
-               case XFER_PIO_1:
-                       dma_pio_timing |= 0x65;
-                       break;
-               case XFER_PIO_0:
-               default:
-                       dma_pio_timing |= 0xA8;
-                       break;
-        }
-
-       pio_timing |= (0x03 << drive->dn);
-
-       if (!drive->init_speed)
-               drive->init_speed = speed;
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-       pci_write_config_byte(dev, drive_pci, ultra_timing);
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-       pci_write_config_byte(dev, drive_pci2, dma_pio_timing);
-       pci_write_config_byte(dev, 0x4c, pio_timing);
-
-#ifdef DEBUG
-       printk(":: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x\n",
-               ultra_timing, dma_pio_timing, pio_timing);
-#endif
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-       if (speed > XFER_PIO_4) {
-               outb(inb(dma_base+2)|(1<<(5+unit)), dma_base+2);
-       } else {
-               outb(inb(dma_base+2) & ~(1<<(5+unit)), dma_base+2);
-       }
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-       err = ide_config_drive_speed(drive, speed);
-       drive->current_speed = speed;
-       return (err);
-}
-
-static void config_chipset_for_pio (ide_drive_t *drive)
-{
-       unsigned short eide_pio_timing[6] = {960, 480, 240, 180, 120, 90};
-       unsigned short xfer_pio = drive->id->eide_pio_modes;
-       byte                    timing, speed, pio;
-
-       pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
-
-       if (xfer_pio> 4)
-               xfer_pio = 0;
-
-       if (drive->id->eide_pio_iordy > 0) {
-               for (xfer_pio = 5;
-                       xfer_pio>0 &&
-                       drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio];
-                       xfer_pio--);
-       } else {
-               xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
-                          (drive->id->eide_pio_modes & 2) ? 0x04 :
-                          (drive->id->eide_pio_modes & 1) ? 0x03 :
-                          (drive->id->tPIO & 2) ? 0x02 :
-                          (drive->id->tPIO & 1) ? 0x01 : xfer_pio;
-       }
-
-       timing = (xfer_pio >= pio) ? xfer_pio : pio;
-
-       switch(timing) {
-               case 4: speed = XFER_PIO_4;break;
-               case 3: speed = XFER_PIO_3;break;
-               case 2: speed = XFER_PIO_2;break;
-               case 1: speed = XFER_PIO_1;break;
-               default:
-                       speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW;
-                       break;
-       }
-       (void) amd7409_tune_chipset(drive, speed);
-       drive->current_speed = speed;
-}
-
-static void amd7409_tune_drive (ide_drive_t *drive, byte pio)
-{
-       byte speed;
-       switch(pio) {
-               case 4:         speed = XFER_PIO_4;break;
-               case 3:         speed = XFER_PIO_3;break;
-               case 2:         speed = XFER_PIO_2;break;
-               case 1:         speed = XFER_PIO_1;break;
-               default:        speed = XFER_PIO_0;break;
-       }
-       (void) amd7409_tune_chipset(drive, speed);
-}
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-/*
- * This allows the configuration of ide_pci chipset registers
- * for cards that learn about the drive's UDMA, DMA, PIO capabilities
- * after the drive is reported by the OS.
- */
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
-       struct hd_driveid *id   = drive->id;
-       byte udma_66            = eighty_ninty_three(drive);
-       byte udma_100           = 0;
-       byte speed              = 0x00;
-       int  rval;
-
-       if ((id->dma_ultra & 0x0020) && (udma_66)&& (udma_100)) {
-               speed = XFER_UDMA_5;
-       } else if ((id->dma_ultra & 0x0010) && (udma_66)) {
-               speed = XFER_UDMA_4;
-       } else if ((id->dma_ultra & 0x0008) && (udma_66)) {
-               speed = XFER_UDMA_3;
-       } else if (id->dma_ultra & 0x0004) {
-               speed = XFER_UDMA_2;
-       } else if (id->dma_ultra & 0x0002) {
-               speed = XFER_UDMA_1;
-       } else if (id->dma_ultra & 0x0001) {
-               speed = XFER_UDMA_0;
-       } else if (id->dma_mword & 0x0004) {
-               speed = XFER_MW_DMA_2;
-       } else if (id->dma_mword & 0x0002) {
-               speed = XFER_MW_DMA_1;
-       } else if (id->dma_mword & 0x0001) {
-               speed = XFER_MW_DMA_0;
-       } else {
-               return ((int) ide_dma_off_quietly);
-       }
-
-       (void) amd7409_tune_chipset(drive, speed);
-
-       rval = (int)(   ((id->dma_ultra >> 11) & 3) ? ide_dma_on :
-                       ((id->dma_ultra >> 8) & 7) ? ide_dma_on :
-                       ((id->dma_mword >> 8) & 7) ? ide_dma_on :
-                                                    ide_dma_off_quietly);
-
-       return rval;
-}
-
-
-
-static int config_drive_xfer_rate (ide_drive_t *drive)
-{
-       struct hd_driveid *id = drive->id;
-       ide_dma_action_t dma_func = ide_dma_on;
-
-       if (id && (id->capability & 1) && HWIF(drive)->autodma) {
-               /* Consult the list of known "bad" drives */
-               if (ide_dmaproc(ide_dma_bad_drive, drive)) {
-                       dma_func = ide_dma_off;
-                       goto fast_ata_pio;
-               }
-               dma_func = ide_dma_off_quietly;
-               if (id->field_valid & 4) {
-                       if (id->dma_ultra & 0x002F) {
-                               /* Force if Capable UltraDMA */
-                               dma_func = config_chipset_for_dma(drive);
-                               if ((id->field_valid & 2) &&
-                                   (dma_func != ide_dma_on))
-                                       goto try_dma_modes;
-                       }
-               } else if (id->field_valid & 2) {
-try_dma_modes:
-                       if ((id->dma_mword & 0x0007) ||
-                           ((id->dma_1word & 0x007) &&
-                            (amd7409_swdma_check(HWIF(drive)->pci_dev)))) {
-                               /* Force if Capable regular DMA modes */
-                               dma_func = config_chipset_for_dma(drive);
-                               if (dma_func != ide_dma_on)
-                                       goto no_dma_set;
-                       }
-                       
-               } else if (ide_dmaproc(ide_dma_good_drive, drive)) {
-                       if (id->eide_dma_time > 150) {
-                               goto no_dma_set;
-                       }
-                       /* Consult the list of known "good" drives */
-                       dma_func = config_chipset_for_dma(drive);
-                       if (dma_func != ide_dma_on)
-                               goto no_dma_set;
-               } else {
-                       goto fast_ata_pio;
-               }
-       } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
-               dma_func = ide_dma_off_quietly;
-no_dma_set:
-
-               config_chipset_for_pio(drive);
-       }
-       return HWIF(drive)->dmaproc(dma_func, drive);
-}
-
-/*
- * amd7409_dmaproc() initiates/aborts (U)DMA read/write operations on a drive.
- */
-
-int amd7409_dmaproc (ide_dma_action_t func, ide_drive_t *drive)
-{
-       switch (func) {
-               case ide_dma_check:
-                       return config_drive_xfer_rate(drive);
-               default:
-                       break;
-       }
-       return ide_dmaproc(func, drive);        /* use standard DMA stuff */
-}
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-unsigned int __init pci_init_amd7409 (struct pci_dev *dev, const char *name)
-{
-       unsigned long fixdma_base = pci_resource_start(dev, 4);
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-       if (!amd7409_swdma_check(dev))
-               printk("%s: disabling single-word DMA support (revision < C4)\n", 
name);
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-       if (!fixdma_base) {
-               /*
-                *
-                */
-       } else {
-               /*
-                * enable DMA capable bit, and "not" simplex only
-                */
-               outb(inb(fixdma_base+2) & 0x60, fixdma_base+2);
-
-               if (inb(fixdma_base+2) & 0x80)
-                       printk("%s: simplex device: DMA will fail!!\n", name);
-       }
-#if defined(DISPLAY_VIPER_TIMINGS) && defined(CONFIG_PROC_FS)
-       if (!amd7409_proc) {
-               amd7409_proc = 1;
-               bmide_dev = dev;
-               amd7409_display_info = &amd7409_get_info;
-       }
-#endif /* DISPLAY_VIPER_TIMINGS && CONFIG_PROC_FS */
-
-       return 0;
-}
-
-unsigned int __init ata66_amd7409 (ide_hwif_t *hwif)
-{
-#ifdef CONFIG_AMD7409_OVERRIDE
-       byte ata66 = 1;
-#else
-       byte ata66 = 0;
-#endif /* CONFIG_AMD7409_OVERRIDE */
-
-#if 0
-       pci_read_config_byte(hwif->pci_dev, 0x48, &ata66);
-       return ((ata66 & 0x02) ? 0 : 1);
-#endif
-       return ata66;
-}
-
-void __init ide_init_amd7409 (ide_hwif_t *hwif)
-{
-       hwif->tuneproc = &amd7409_tune_drive;
-       hwif->speedproc = &amd7409_tune_chipset;
-
-#ifndef CONFIG_BLK_DEV_IDEDMA
-       hwif->drives[0].autotune = 1;
-       hwif->drives[1].autotune = 1;
-       hwif->autodma = 0;
-       return;
-#else
-
-       if (hwif->dma_base) {
-               hwif->dmaproc = &amd7409_dmaproc;
-               hwif->autodma = 1;
-       } else {
-               hwif->autodma = 0;
-               hwif->drives[0].autotune = 1;
-               hwif->drives[1].autotune = 1;
-       }
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-}
-
-void __init ide_dmacapable_amd7409 (ide_hwif_t *hwif, unsigned long dmabase)
-{
-       ide_setup_dma(hwif, dmabase, 8);
-}
diff -urN linux-2.4.1-p8-pristine/drivers/ide/amd74xx.c 
linux-2.4.1-p8/drivers/ide/amd74xx.c
--- linux-2.4.1-p8-pristine/drivers/ide/amd74xx.c       Wed Dec 31 16:00:00 1969
+++ linux-2.4.1-p8/drivers/ide/amd74xx.c        Thu Jan 18 02:42:37 2001
@@ -0,0 +1,478 @@
+/*
+ * linux/drivers/ide/amd74xx.c         Version 0.05    June 9, 2000
+ *
+ * Copyright (C) 1999-2000             Andre Hedrick <[EMAIL PROTECTED]>
+ * May be copied or modified under the terms of the GNU General Public License
+ *
+ */
+
+#include <linux/config.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/init.h>
+#include <linux/pci.h>
+#include <linux/ide.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#include "ide_modes.h"
+
+#define DISPLAY_VIPER_TIMINGS
+
+#if defined(DISPLAY_VIPER_TIMINGS) && defined(CONFIG_PROC_FS)
+#include <linux/stat.h>
+#include <linux/proc_fs.h>
+
+static int amd74xx_get_info(char *, char **, off_t, int);
+extern int (*amd74xx_display_info)(char *, char **, off_t, int); /* ide-proc.c */
+extern char *ide_media_verbose(ide_drive_t *);
+static struct pci_dev *bmide_dev;
+
+static int amd74xx_get_info (char *buffer, char **addr, off_t offset, int count)
+{
+       char *p = buffer;
+       u32 bibma = pci_resource_start(bmide_dev, 4);
+       u8 c0 = 0, c1 = 0;
+
+       /*
+        * at that point bibma+0x2 et bibma+0xa are byte registers
+        * to investigate:
+        */
+       c0 = inb_p((unsigned short)bibma + 0x02);
+       c1 = inb_p((unsigned short)bibma + 0x0a);
+
+       p += sprintf(p, "\n                                AMD %04X VIPER Chipset.\n", 
+bmide_dev->device);
+       p += sprintf(p, "--------------- Primary Channel ---------------- Secondary 
+Channel -------------\n");
+       p += sprintf(p, "                %sabled                         %sabled\n",
+                       (c0&0x80) ? "dis" : " en",
+                       (c1&0x80) ? "dis" : " en");
+       p += sprintf(p, "--------------- drive0 --------- drive1 -------- drive0 
+---------- drive1 ------\n");
+       p += sprintf(p, "DMA enabled:    %s              %s             %s             
+  %s\n",
+                       (c0&0x20) ? "yes" : "no ", (c0&0x40) ? "yes" : "no ",
+                       (c1&0x20) ? "yes" : "no ", (c1&0x40) ? "yes" : "no " );
+       p += sprintf(p, "UDMA\n");
+       p += sprintf(p, "DMA\n");
+       p += sprintf(p, "PIO\n");
+
+       return p-buffer;        /* => must be less than 4k! */
+}
+#endif  /* defined(DISPLAY_VIPER_TIMINGS) && defined(CONFIG_PROC_FS) */
+
+byte amd74xx_proc = 0;
+
+extern char *ide_xfer_verbose (byte xfer_rate);
+
+static unsigned int amd74xx_swdma_check (struct pci_dev *dev)
+{
+       unsigned int class_rev;
+
+       if (dev->device == PCI_DEVICE_ID_AMD_VIPER_7411)
+               return 0;
+
+       pci_read_config_dword(dev, PCI_CLASS_REVISION, &class_rev);
+       class_rev &= 0xff;
+       return ((int) (class_rev >= 7) ? 1 : 0);
+}
+
+static int amd74xx_swdma_error(ide_drive_t *drive)
+{
+       printk("%s: single-word DMA not support (revision < C4)\n", drive->name);
+       return 0;
+}
+
+/*
+ * Here is where all the hard work goes to program the chipset.
+ *
+ */
+static int amd74xx_tune_chipset (ide_drive_t *drive, byte speed)
+{
+       ide_hwif_t *hwif        = HWIF(drive);
+       struct pci_dev *dev     = hwif->pci_dev;
+       int err                 = 0;
+       byte unit               = (drive->select.b.unit & 0x01);
+#ifdef CONFIG_BLK_DEV_IDEDMA
+       unsigned long dma_base  = hwif->dma_base;
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+       byte drive_pci          = 0x00;
+       byte drive_pci2         = 0x00;
+       byte ultra_timing       = 0x00;
+       byte dma_pio_timing     = 0x00;
+       byte pio_timing         = 0x00;
+
+        switch (drive->dn) {
+               case 0: drive_pci = 0x53; drive_pci2 = 0x4b; break;
+               case 1: drive_pci = 0x52; drive_pci2 = 0x4a; break;
+               case 2: drive_pci = 0x51; drive_pci2 = 0x49; break;
+               case 3: drive_pci = 0x50; drive_pci2 = 0x48; break;
+               default:
+                        return -1;
+        }
+
+       pci_read_config_byte(dev, drive_pci, &ultra_timing);
+       pci_read_config_byte(dev, drive_pci2, &dma_pio_timing);
+       pci_read_config_byte(dev, 0x4c, &pio_timing);
+
+#ifdef DEBUG
+       printk("%s: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
+               drive->name, ultra_timing, dma_pio_timing, pio_timing);
+#endif
+
+       ultra_timing &= ~0xC7;
+       dma_pio_timing &= ~0xFF;
+       pio_timing &= ~(0x03 << drive->dn);
+
+#ifdef DEBUG
+       printk(":: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
+               ultra_timing, dma_pio_timing, pio_timing);
+#endif
+
+       switch(speed) {
+#ifdef CONFIG_BLK_DEV_IDEDMA
+               case XFER_UDMA_5:
+                       ultra_timing |= 0x46;
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_UDMA_4:
+                       ultra_timing |= 0x45;
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_UDMA_3:
+                       ultra_timing |= 0x44;
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_UDMA_2:
+                       ultra_timing |= 0x40;
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_UDMA_1:
+                       ultra_timing |= 0x41;
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_UDMA_0:
+                       ultra_timing |= 0x42;
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_MW_DMA_2:
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_MW_DMA_1:
+                       dma_pio_timing |= 0x21;
+                       break;
+               case XFER_MW_DMA_0:
+                       dma_pio_timing |= 0x77;
+                       break;
+               case XFER_SW_DMA_2:
+                       if (!amd74xx_swdma_check(dev))
+                               return amd74xx_swdma_error(drive);
+                       dma_pio_timing |= 0x42;
+                       break;
+               case XFER_SW_DMA_1:
+                       if (!amd74xx_swdma_check(dev))
+                               return amd74xx_swdma_error(drive);
+                       dma_pio_timing |= 0x65;
+                       break;
+               case XFER_SW_DMA_0:
+                       if (!amd74xx_swdma_check(dev))
+                               return amd74xx_swdma_error(drive);
+                       dma_pio_timing |= 0xA8;
+                       break;
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+               case XFER_PIO_4:
+                       dma_pio_timing |= 0x20;
+                       break;
+               case XFER_PIO_3:
+                       dma_pio_timing |= 0x22;
+                       break;
+               case XFER_PIO_2:
+                       dma_pio_timing |= 0x42;
+                       break;
+               case XFER_PIO_1:
+                       dma_pio_timing |= 0x65;
+                       break;
+               case XFER_PIO_0:
+               default:
+                       dma_pio_timing |= 0xA8;
+                       break;
+        }
+
+       pio_timing |= (0x03 << drive->dn);
+
+       if (!drive->init_speed)
+               drive->init_speed = speed;
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+       pci_write_config_byte(dev, drive_pci, ultra_timing);
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+       pci_write_config_byte(dev, drive_pci2, dma_pio_timing);
+       pci_write_config_byte(dev, 0x4c, pio_timing);
+
+#ifdef DEBUG
+       printk(":: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x\n",
+               ultra_timing, dma_pio_timing, pio_timing);
+#endif
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+       if (speed > XFER_PIO_4) {
+               outb(inb(dma_base+2)|(1<<(5+unit)), dma_base+2);
+       } else {
+               outb(inb(dma_base+2) & ~(1<<(5+unit)), dma_base+2);
+       }
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+
+       err = ide_config_drive_speed(drive, speed);
+       drive->current_speed = speed;
+       return (err);
+}
+
+static void config_chipset_for_pio (ide_drive_t *drive)
+{
+       unsigned short eide_pio_timing[6] = {960, 480, 240, 180, 120, 90};
+       unsigned short xfer_pio = drive->id->eide_pio_modes;
+       byte                    timing, speed, pio;
+
+       pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
+
+       if (xfer_pio> 4)
+               xfer_pio = 0;
+
+       if (drive->id->eide_pio_iordy > 0) {
+               for (xfer_pio = 5;
+                       xfer_pio>0 &&
+                       drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio];
+                       xfer_pio--);
+       } else {
+               xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
+                          (drive->id->eide_pio_modes & 2) ? 0x04 :
+                          (drive->id->eide_pio_modes & 1) ? 0x03 :
+                          (drive->id->tPIO & 2) ? 0x02 :
+                          (drive->id->tPIO & 1) ? 0x01 : xfer_pio;
+       }
+
+       timing = (xfer_pio >= pio) ? xfer_pio : pio;
+
+       switch(timing) {
+               case 4: speed = XFER_PIO_4;break;
+               case 3: speed = XFER_PIO_3;break;
+               case 2: speed = XFER_PIO_2;break;
+               case 1: speed = XFER_PIO_1;break;
+               default:
+                       speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW;
+                       break;
+       }
+       (void) amd74xx_tune_chipset(drive, speed);
+       drive->current_speed = speed;
+}
+
+static void amd74xx_tune_drive (ide_drive_t *drive, byte pio)
+{
+       byte speed;
+       switch(pio) {
+               case 4:         speed = XFER_PIO_4;break;
+               case 3:         speed = XFER_PIO_3;break;
+               case 2:         speed = XFER_PIO_2;break;
+               case 1:         speed = XFER_PIO_1;break;
+               default:        speed = XFER_PIO_0;break;
+       }
+       (void) amd74xx_tune_chipset(drive, speed);
+}
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+/*
+ * This allows the configuration of ide_pci chipset registers
+ * for cards that learn about the drive's UDMA, DMA, PIO capabilities
+ * after the drive is reported by the OS.
+ */
+static int config_chipset_for_dma (ide_drive_t *drive)
+{
+       ide_hwif_t *hwif        = HWIF(drive);
+       struct pci_dev *dev     = hwif->pci_dev;
+       struct hd_driveid *id   = drive->id;
+       byte udma_66            = eighty_ninty_three(drive);
+       byte udma_100           = (dev->device==PCI_DEVICE_ID_AMD_VIPER_7411) ? 1 : 0;
+       byte speed              = 0x00;
+       int  rval;
+
+       if ((id->dma_ultra & 0x0020) && (udma_66)&& (udma_100)) {
+               speed = XFER_UDMA_5;
+       } else if ((id->dma_ultra & 0x0010) && (udma_66)) {
+               speed = XFER_UDMA_4;
+       } else if ((id->dma_ultra & 0x0008) && (udma_66)) {
+               speed = XFER_UDMA_3;
+       } else if (id->dma_ultra & 0x0004) {
+               speed = XFER_UDMA_2;
+       } else if (id->dma_ultra & 0x0002) {
+               speed = XFER_UDMA_1;
+       } else if (id->dma_ultra & 0x0001) {
+               speed = XFER_UDMA_0;
+       } else if (id->dma_mword & 0x0004) {
+               speed = XFER_MW_DMA_2;
+       } else if (id->dma_mword & 0x0002) {
+               speed = XFER_MW_DMA_1;
+       } else if (id->dma_mword & 0x0001) {
+               speed = XFER_MW_DMA_0;
+       } else {
+               return ((int) ide_dma_off_quietly);
+       }
+
+       (void) amd74xx_tune_chipset(drive, speed);
+
+       rval = (int)(   ((id->dma_ultra >> 11) & 3) ? ide_dma_on :
+                       ((id->dma_ultra >> 8) & 7) ? ide_dma_on :
+                       ((id->dma_mword >> 8) & 7) ? ide_dma_on :
+                                                    ide_dma_off_quietly);
+
+       return rval;
+}
+
+static int config_drive_xfer_rate (ide_drive_t *drive)
+{
+       struct hd_driveid *id = drive->id;
+       ide_dma_action_t dma_func = ide_dma_on;
+
+       if (id && (id->capability & 1) && HWIF(drive)->autodma) {
+               /* Consult the list of known "bad" drives */
+               if (ide_dmaproc(ide_dma_bad_drive, drive)) {
+                       dma_func = ide_dma_off;
+                       goto fast_ata_pio;
+               }
+               dma_func = ide_dma_off_quietly;
+               if (id->field_valid & 4) {
+                       if (id->dma_ultra & 0x002F) {
+                               /* Force if Capable UltraDMA */
+                               dma_func = config_chipset_for_dma(drive);
+                               if ((id->field_valid & 2) &&
+                                   (dma_func != ide_dma_on))
+                                       goto try_dma_modes;
+                       }
+               } else if (id->field_valid & 2) {
+try_dma_modes:
+                       if ((id->dma_mword & 0x0007) ||
+                           ((id->dma_1word & 0x007) &&
+                            (amd74xx_swdma_check(HWIF(drive)->pci_dev)))) {
+                               /* Force if Capable regular DMA modes */
+                               dma_func = config_chipset_for_dma(drive);
+                               if (dma_func != ide_dma_on)
+                                       goto no_dma_set;
+                       }
+                       
+               } else if (ide_dmaproc(ide_dma_good_drive, drive)) {
+                       if (id->eide_dma_time > 150) {
+                               goto no_dma_set;
+                       }
+                       /* Consult the list of known "good" drives */
+                       dma_func = config_chipset_for_dma(drive);
+                       if (dma_func != ide_dma_on)
+                               goto no_dma_set;
+               } else {
+                       goto fast_ata_pio;
+               }
+       } else if ((id->capability & 8) || (id->field_valid & 2)) {
+fast_ata_pio:
+               dma_func = ide_dma_off_quietly;
+no_dma_set:
+
+               config_chipset_for_pio(drive);
+       }
+       return HWIF(drive)->dmaproc(dma_func, drive);
+}
+
+/*
+ * amd74xx_dmaproc() initiates/aborts (U)DMA read/write operations on a drive.
+ */
+
+int amd74xx_dmaproc (ide_dma_action_t func, ide_drive_t *drive)
+{
+       switch (func) {
+               case ide_dma_check:
+                       return config_drive_xfer_rate(drive);
+               default:
+                       break;
+       }
+       return ide_dmaproc(func, drive);        /* use standard DMA stuff */
+}
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+
+unsigned int __init pci_init_amd74xx (struct pci_dev *dev, const char *name)
+{
+       unsigned long fixdma_base = pci_resource_start(dev, 4);
+
+#ifdef CONFIG_BLK_DEV_IDEDMA
+       if (!amd74xx_swdma_check(dev))
+               printk("%s: disabling single-word DMA support (revision < C4)\n", 
+name);
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+
+       if (!fixdma_base) {
+               /*
+                *
+                */
+       } else {
+               /*
+                * enable DMA capable bit, and "not" simplex only
+                */
+               outb(inb(fixdma_base+2) & 0x60, fixdma_base+2);
+
+               if (inb(fixdma_base+2) & 0x80)
+                       printk("%s: simplex device: DMA will fail!!\n", name);
+       }
+#if defined(DISPLAY_VIPER_TIMINGS) && defined(CONFIG_PROC_FS)
+       if (!amd74xx_proc) {
+               amd74xx_proc = 1;
+               bmide_dev = dev;
+               amd74xx_display_info = &amd74xx_get_info;
+       }
+#endif /* DISPLAY_VIPER_TIMINGS && CONFIG_PROC_FS */
+
+       return 0;
+}
+
+unsigned int __init ata66_amd74xx (ide_hwif_t *hwif)
+{
+#ifdef CONFIG_AMD74XX_OVERRIDE
+       byte ata66 = 1;
+#else
+       byte ata66 = 0;
+#endif /* CONFIG_AMD74XX_OVERRIDE */
+
+#if 0
+       pci_read_config_byte(hwif->pci_dev, 0x48, &ata66);
+       return ((ata66 & 0x02) ? 0 : 1);
+#endif
+       return ata66;
+}
+
+void __init ide_init_amd74xx (ide_hwif_t *hwif)
+{
+       hwif->tuneproc = &amd74xx_tune_drive;
+       hwif->speedproc = &amd74xx_tune_chipset;
+
+#ifndef CONFIG_BLK_DEV_IDEDMA
+       hwif->drives[0].autotune = 1;
+       hwif->drives[1].autotune = 1;
+       hwif->autodma = 0;
+       return;
+#else
+
+       if (hwif->dma_base) {
+               hwif->dmaproc = &amd74xx_dmaproc;
+               hwif->autodma = 1;
+       } else {
+               hwif->autodma = 0;
+               hwif->drives[0].autotune = 1;
+               hwif->drives[1].autotune = 1;
+       }
+#endif /* CONFIG_BLK_DEV_IDEDMA */
+}
+
+void __init ide_dmacapable_amd74xx (ide_hwif_t *hwif, unsigned long dmabase)
+{
+       ide_setup_dma(hwif, dmabase, 8);
+}
diff -urN linux-2.4.1-p8-pristine/drivers/ide/hpt366.c 
linux-2.4.1-p8/drivers/ide/hpt366.c
--- linux-2.4.1-p8-pristine/drivers/ide/hpt366.c        Tue Jan  2 16:58:45 2001
+++ linux-2.4.1-p8/drivers/ide/hpt366.c Thu Jan 18 02:42:37 2001
@@ -55,6 +55,9 @@
 };
 
 const char *bad_ata66_4[] = {
+       "IBM-DTLA-307075",
+       "IBM-DTLA-307045",
+       "IBM-DTLA-307030",
        "WDC AC310200R",
        NULL
 };
diff -urN linux-2.4.1-p8-pristine/drivers/ide/ide-dma.c 
linux-2.4.1-p8/drivers/ide/ide-dma.c
--- linux-2.4.1-p8-pristine/drivers/ide/ide-dma.c       Thu Jan 18 01:20:48 2001
+++ linux-2.4.1-p8/drivers/ide/ide-dma.c        Thu Jan 18 02:42:40 2001
@@ -90,7 +90,16 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 
-#undef CONFIG_BLK_DEV_IDEDMA_TIMEOUT
+/*
+ * Long lost data from 2.0.34 that is now in 2.0.39
+ *
+ * This was used in ./drivers/block/triton.c to do DMA Base address setup
+ * when PnP failed.  Oh the things we forget.  I believe this was part
+ * of SFF-8038i that has been withdrawn from public access... :-((
+ */
+#define DEFAULT_BMIBA  0xe800  /* in case BIOS did not init it */
+#define DEFAULT_BMCRBA 0xcc00  /* VIA's default value */
+#define DEFAULT_BMALIBA        0xd400  /* ALI's default value */
 
 extern char *ide_dmafunc_verbose(ide_dma_action_t dmafunc);
 
@@ -426,6 +435,7 @@
        return hwif->dmaproc(ide_dma_off_quietly, drive);
 }
 
+#ifndef CONFIG_BLK_DEV_IDEDMA_TIMEOUT
 /*
  * 1 dmaing, 2 error, 4 intr
  */
@@ -449,6 +459,30 @@
                return WAIT_CMD;
        return 0;
 }
+#else /* CONFIG_BLK_DEV_IDEDMA_TIMEOUT */
+static ide_startstop_t ide_dma_timeout_revovery (ide_drive_t *drive)
+{
+       ide_hwgroup_t *hwgroup  = HWGROUP(drive);
+       ide_hwif_t *hwif        = HWIF(drive);
+       int enable_dma          = drive->using_dma;
+       unsigned long flags;
+       ide_startstop_t startstop;
+
+       spin_lock_irqsave(&io_request_lock, flags);
+       hwgroup->handler = NULL;
+       del_timer(&hwgroup->timer);
+       spin_unlock_irqrestore(&io_request_lock, flags);
+
+       drive->waiting_for_dma = 0;
+
+       startstop = ide_do_reset(drive);
+
+       if ((enable_dma) && !(drive->using_dma))
+               (void) hwif->dmaproc(ide_dma_on, drive);
+
+       return startstop;
+}
+#endif /* CONFIG_BLK_DEV_IDEDMA_TIMEOUT */
 
 /*
  * ide_dmaproc() initiates/aborts DMA read/write operations on a drive.
@@ -468,10 +502,11 @@
  */
 int ide_dmaproc (ide_dma_action_t func, ide_drive_t *drive)
 {
-       ide_hwif_t *hwif = HWIF(drive);
-       unsigned long dma_base = hwif->dma_base;
-       byte unit = (drive->select.b.unit & 0x01);
-       unsigned int count, reading = 0;
+       ide_hwgroup_t *hwgroup          = HWGROUP(drive);
+       ide_hwif_t *hwif                = HWIF(drive);
+       unsigned long dma_base          = hwif->dma_base;
+       byte unit                       = (drive->select.b.unit & 0x01);
+       unsigned int count, reading     = 0;
        byte dma_stat;
 
        switch (func) {
@@ -498,7 +533,11 @@
                        drive->waiting_for_dma = 1;
                        if (drive->media != ide_disk)
                                return 0;
+#ifdef CONFIG_BLK_DEV_IDEDMA_TIMEOUT
+                       ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, NULL);  /* 
+issue cmd to drive */
+#else /* !CONFIG_BLK_DEV_IDEDMA_TIMEOUT */
                        ide_set_handler(drive, &ide_dma_intr, WAIT_CMD, 
dma_timer_expiry);      /* issue cmd to drive */
+#endif /* CONFIG_BLK_DEV_IDEDMA_TIMEOUT */
                        OUT_BYTE(reading ? WIN_READDMA : WIN_WRITEDMA, 
IDE_COMMAND_REG);
                case ide_dma_begin:
                        /* Note that this is done *after* the cmd has
@@ -537,6 +576,23 @@
                         * we have to clean up the mess, and here is as good
                         * as any.  Do it globally for all chipsets.
                         */
+                       outb(0x00, dma_base);           /* stop DMA */
+                       dma_stat = inb(dma_base+2);     /* get DMA status */
+                       outb(dma_stat|6, dma_base+2);   /* clear the INTR & ERROR bits 
+*/
+                       printk("%s: %s: Lets do it again!" \
+                               "stat = 0x%02x, dma_stat = 0x%02x\n",
+                               drive->name, ide_dmafunc_verbose(func),
+                               GET_STAT(), dma_stat);
+
+                       if (dma_stat & 0xF0)
+                               return ide_dma_timeout_revovery(drive);
+
+                       printk("%s: %s: (restart_request) Lets do it again!" \
+                               "stat = 0x%02x, dma_stat = 0x%02x\n",
+                               drive->name, ide_dmafunc_verbose(func),
+                               GET_STAT(), dma_stat);
+
+                       return restart_request(drive);
 #endif /* CONFIG_BLK_DEV_IDEDMA_TIMEOUT */
                case ide_dma_retune:
                case ide_dma_lostirq:
@@ -620,6 +676,12 @@
        unsigned long   dma_base = 0;
        struct pci_dev  *dev = hwif->pci_dev;
 
+#ifdef CONFIG_BLK_DEV_IDEDMA_FORCED
+       int second_chance = 0;
+
+second_chance_to_dma:
+#endif /* CONFIG_BLK_DEV_IDEDMA_FORCED */
+
        if (hwif->mate && hwif->mate->dma_base) {
                dma_base = hwif->mate->dma_base - (hwif->channel ? 0 : 8);
        } else {
@@ -629,6 +691,26 @@
                        dma_base = 0;
                }
        }
+
+#ifdef CONFIG_BLK_DEV_IDEDMA_FORCED
+       if ((!dma_base) && (!second_chance)) {
+               unsigned long set_bmiba = 0;
+               second_chance++;
+               switch(dev->vender) {
+                       PCI_VENDOR_ID_AL:
+                               set_bmiba = DEFAULT_BMALIBA; break;
+                       PCI_VENDOR_ID_VIA:
+                               set_bmiba = DEFAULT_BMCRBA; break;
+                       PCI_VENDOR_ID_INTEL:
+                               set_bmiba = DEFAULT_BMIBA; break;
+                       default:
+                               return dma_base;
+               }
+               pci_write_config_dword(dev, 0x20, set_bmiba|1);
+               goto second_chance_to_dma;
+       }
+#endif /* CONFIG_BLK_DEV_IDEDMA_FORCED */
+
        if (dma_base) {
                if (extra) /* PDC20246, PDC20262, HPT343, & HPT366 */
                        request_region(dma_base+16, extra, name);
diff -urN linux-2.4.1-p8-pristine/drivers/ide/ide-pci.c 
linux-2.4.1-p8/drivers/ide/ide-pci.c
--- linux-2.4.1-p8-pristine/drivers/ide/ide-pci.c       Tue Jan  2 16:58:45 2001
+++ linux-2.4.1-p8/drivers/ide/ide-pci.c        Thu Jan 18 02:42:40 2001
@@ -70,8 +70,9 @@
 #define DEVID_CY82C693 ((ide_pci_devid_t){PCI_VENDOR_ID_CONTAQ,  
PCI_DEVICE_ID_CONTAQ_82C693})
 #define DEVID_HINT     ((ide_pci_devid_t){0x3388,                0x8013})
 #define DEVID_CS5530   ((ide_pci_devid_t){PCI_VENDOR_ID_CYRIX,   
PCI_DEVICE_ID_CYRIX_5530_IDE})
-#define DEVID_AMD7403  ((ide_pci_devid_t){PCI_VENDOR_ID_AMD,     
PCI_DEVICE_ID_AMD_COBRA_7403})
+#define DEVID_AMD7401  ((ide_pci_devid_t){PCI_VENDOR_ID_AMD,     
+PCI_DEVICE_ID_AMD_COBRA_7401})
 #define DEVID_AMD7409  ((ide_pci_devid_t){PCI_VENDOR_ID_AMD,     
PCI_DEVICE_ID_AMD_VIPER_7409})
+#define DEVID_AMD7411  ((ide_pci_devid_t){PCI_VENDOR_ID_AMD,     
+PCI_DEVICE_ID_AMD_VIPER_7411})
 #define DEVID_SLC90E66 ((ide_pci_devid_t){PCI_VENDOR_ID_EFAR,    
PCI_DEVICE_ID_EFAR_SLC90E66_1})
 #define DEVID_OSB4     ((ide_pci_devid_t){PCI_VENDOR_ID_SERVERWORKS, 
PCI_DEVICE_ID_SERVERWORKS_OSB4IDE})
 
@@ -109,20 +110,20 @@
 #define DMA_ALI15X3    NULL
 #endif
 
-#ifdef CONFIG_BLK_DEV_AMD7409
-extern unsigned int pci_init_amd7409(struct pci_dev *, const char *);
-extern unsigned int ata66_amd7409(ide_hwif_t *);
-extern void ide_init_amd7409(ide_hwif_t *);
-extern void ide_dmacapable_amd7409(ide_hwif_t *, unsigned long);
-#define PCI_AMD7409    &pci_init_amd7409
-#define ATA66_AMD7409  &ata66_amd7409
-#define INIT_AMD7409   &ide_init_amd7409
-#define DMA_AMD7409    &ide_dmacapable_amd7409
-#else
-#define PCI_AMD7409    NULL
-#define ATA66_AMD7409  NULL
-#define INIT_AMD7409   NULL
-#define DMA_AMD7409    NULL
+#ifdef CONFIG_BLK_DEV_AMD74XX
+extern unsigned int pci_init_amd74xx(struct pci_dev *, const char *);
+extern unsigned int ata66_amd74xx(ide_hwif_t *);
+extern void ide_init_amd74xx(ide_hwif_t *);
+extern void ide_dmacapable_amd74xx(ide_hwif_t *, unsigned long);
+#define PCI_AMD74XX    &pci_init_amd74xx
+#define ATA66_AMD74XX  &ata66_amd74xx
+#define INIT_AMD74XX   &ide_init_amd74xx
+#define DMA_AMD74XX    &ide_dmacapable_amd74xx
+#else
+#define PCI_AMD74XX    NULL
+#define ATA66_AMD74XX  NULL
+#define INIT_AMD74XX   NULL
+#define DMA_AMD74XX    NULL
 #endif
 
 #ifdef CONFIG_BLK_DEV_CMD64X
@@ -377,8 +378,9 @@
        {DEVID_CY82C693,"CY82C693",     PCI_CY82C693,   NULL,           INIT_CY82C693, 
 NULL,           {{0x00,0x00,0x00}, {0x00,0x00,0x00}},   ON_BOARD,       0 },
        {DEVID_HINT,    "HINT_IDE",     NULL,           NULL,           NULL,          
 NULL,           {{0x00,0x00,0x00}, {0x00,0x00,0x00}},   ON_BOARD,       0 },
        {DEVID_CS5530,  "CS5530",       PCI_CS5530,     NULL,           INIT_CS5530,   
 NULL,           {{0x00,0x00,0x00}, {0x00,0x00,0x00}},   ON_BOARD,       0 },
-       {DEVID_AMD7403, "AMD7403",      NULL,           NULL,           NULL,          
 NULL,           {{0x00,0x00,0x00}, {0x00,0x00,0x00}},   ON_BOARD,       0 },
-       {DEVID_AMD7409, "AMD7409",      PCI_AMD7409,    ATA66_AMD7409,  INIT_AMD7409,  
 DMA_AMD7409,    {{0x40,0x01,0x01}, {0x40,0x02,0x02}},   ON_BOARD,       0 },
+       {DEVID_AMD7401, "AMD7401",      NULL,           NULL,           NULL,          
+ NULL,           {{0x00,0x00,0x00}, {0x00,0x00,0x00}},   ON_BOARD,       0 },
+       {DEVID_AMD7409, "AMD7409",      PCI_AMD74XX,    ATA66_AMD74XX,  INIT_AMD74XX,  
+ DMA_AMD74XX,    {{0x40,0x01,0x01}, {0x40,0x02,0x02}},   ON_BOARD,       0 },
+       {DEVID_AMD7411, "AMD7411",      PCI_AMD74XX,    ATA66_AMD74XX,  INIT_AMD74XX,  
+ DMA_AMD74XX,    {{0x40,0x01,0x01}, {0x40,0x02,0x02}},   ON_BOARD,       0 },
        {DEVID_SLC90E66,"SLC90E66",     PCI_SLC90E66,   ATA66_SLC90E66, INIT_SLC90E66, 
 NULL,           {{0x41,0x80,0x80}, {0x43,0x80,0x80}},   ON_BOARD,       0 },
         {DEVID_OSB4,    "ServerWorks OSB4",     PCI_OSB4,       ATA66_OSB4,     
INIT_OSB4,      NULL,   {{0x00,0x00,0x00}, {0x00,0x00,0x00}},   ON_BOARD,       0 },
        {IDE_PCI_DEVID_NULL, "PCI_IDE", NULL,           NULL,           NULL,          
 NULL,           {{0x00,0x00,0x00}, {0x00,0x00,0x00}},   ON_BOARD,       0 }};
@@ -663,7 +665,9 @@
                if (IDE_PCI_DEVID_EQ(d->devid, DEVID_SIS5513) ||
                    IDE_PCI_DEVID_EQ(d->devid, DEVID_AEC6260) ||
                    IDE_PCI_DEVID_EQ(d->devid, DEVID_PIIX4NX) ||
-                   IDE_PCI_DEVID_EQ(d->devid, DEVID_HPT34X))
+                   IDE_PCI_DEVID_EQ(d->devid, DEVID_HPT34X)  ||
+                   IDE_PCI_DEVID_EQ(d->devid, DEVID_VIA_IDE) ||
+                   IDE_PCI_DEVID_EQ(d->devid, DEVID_VP_IDE))
                        autodma = 0;
                if (autodma)
                        hwif->autodma = 1;
diff -urN linux-2.4.1-p8-pristine/drivers/ide/ide-proc.c 
linux-2.4.1-p8/drivers/ide/ide-proc.c
--- linux-2.4.1-p8-pristine/drivers/ide/ide-proc.c      Thu Oct 26 14:11:39 2000
+++ linux-2.4.1-p8/drivers/ide/ide-proc.c       Thu Jan 18 02:42:40 2001
@@ -81,10 +81,10 @@
 extern byte ali_proc;
 int (*ali_display_info)(char *, char **, off_t, int) = NULL;
 #endif /* CONFIG_BLK_DEV_ALI15X3 */
-#ifdef CONFIG_BLK_DEV_AMD7409
-extern byte amd7409_proc;
-int (*amd7409_display_info)(char *, char **, off_t, int) = NULL;
-#endif /* CONFIG_BLK_DEV_AMD7409 */
+#ifdef CONFIG_BLK_DEV_AMD74XX
+extern byte amd74xx_proc;
+int (*amd74xx_display_info)(char *, char **, off_t, int) = NULL;
+#endif /* CONFIG_BLK_DEV_AMD74XX */
 #ifdef CONFIG_BLK_DEV_CMD64X
 extern byte cmd64x_proc;
 int (*cmd64x_display_info)(char *, char **, off_t, int) = NULL;
@@ -817,10 +817,10 @@
        if ((ali_display_info) && (ali_proc))
                create_proc_info_entry("ali", 0, proc_ide_root, ali_display_info);
 #endif /* CONFIG_BLK_DEV_ALI15X3 */
-#ifdef CONFIG_BLK_DEV_AMD7409
-       if ((amd7409_display_info) && (amd7409_proc))
-               create_proc_info_entry("amd7409", 0, proc_ide_root, 
amd7409_display_info);
-#endif /* CONFIG_BLK_DEV_AMD7409 */
+#ifdef CONFIG_BLK_DEV_AMD74XX
+       if ((amd74xx_display_info) && (amd74xx_proc))
+               create_proc_info_entry("amd74xx", 0, proc_ide_root, 
+amd74xx_display_info);
+#endif /* CONFIG_BLK_DEV_AMD74XX */
 #ifdef CONFIG_BLK_DEV_CMD64X
        if ((cmd64x_display_info) && (cmd64x_proc))
                create_proc_info_entry("cmd64x", 0, proc_ide_root, 
cmd64x_display_info);
@@ -877,10 +877,10 @@
        if ((ali_display_info) && (ali_proc))
                remove_proc_entry("ide/ali",0);
 #endif /* CONFIG_BLK_DEV_ALI15X3 */
-#ifdef CONFIG_BLK_DEV_AMD7409
-       if ((amd7409_display_info) && (amd7409_proc))
-               remove_proc_entry("ide/amd7409",0);
-#endif /* CONFIG_BLK_DEV_AMD7409 */
+#ifdef CONFIG_BLK_DEV_AMD74XX
+       if ((amd74xx_display_info) && (amd74xx_proc))
+               remove_proc_entry("ide/amd74xx",0);
+#endif /* CONFIG_BLK_DEV_AMD74XX */
 #ifdef CONFIG_BLK_DEV_CMD64X
        if ((cmd64x_display_info) && (cmd64x_proc))
                remove_proc_entry("ide/cmd64x",0);
diff -urN linux-2.4.1-p8-pristine/drivers/ide/ide.c linux-2.4.1-p8/drivers/ide/ide.c
--- linux-2.4.1-p8-pristine/drivers/ide/ide.c   Wed Dec  6 12:06:19 2000
+++ linux-2.4.1-p8/drivers/ide/ide.c    Thu Jan 18 02:42:40 2001
@@ -1195,6 +1195,19 @@
        return ide_stopped;
 }
 
+ide_startstop_t restart_request (ide_drive_t *drive)
+{
+       ide_hwgroup_t *hwgroup = HWGROUP(drive);
+       unsigned long flags;
+
+       spin_lock_irqsave(&io_request_lock, flags);
+       hwgroup->handler = NULL;
+       del_timer(&hwgroup->timer);
+       spin_unlock_irqrestore(&io_request_lock, flags);
+
+       return start_request(drive);
+}
+
 /*
  * ide_stall_queue() can be used by a drive to give excess bandwidth back
  * to the hwgroup by sleeping for timeout jiffies.
@@ -3533,6 +3546,7 @@
 EXPORT_SYMBOL(ide_fixstring);
 EXPORT_SYMBOL(ide_wait_stat);
 EXPORT_SYMBOL(ide_do_reset);
+EXPORT_SYMBOL(restart_request);
 EXPORT_SYMBOL(ide_init_drive_cmd);
 EXPORT_SYMBOL(ide_do_drive_cmd);
 EXPORT_SYMBOL(ide_end_drive_cmd);
diff -urN linux-2.4.1-p8-pristine/drivers/pci/pci.ids 
linux-2.4.1-p8/drivers/pci/pci.ids
--- linux-2.4.1-p8-pristine/drivers/pci/pci.ids Tue Jan  2 16:58:45 2001
+++ linux-2.4.1-p8/drivers/pci/pci.ids  Thu Jan 18 02:42:40 2001
@@ -457,6 +457,8 @@
        2040  79c974
        7006  AMD-751 [Irongate] System Controller
        7007  AMD-751 [Irongate] AGP Bridge
+       700E  AMD-760 [Irongate] System Controller
+       700F  AMD-760 [Irongate] AGP Bridge
        7400  AMD-755 [Cobra] ISA
        7401  AMD-755 [Cobra] IDE
        7403  AMD-755 [Cobra] ACPI
@@ -465,6 +467,10 @@
        7409  AMD-756 [Viper] IDE
        740b  AMD-756 [Viper] ACPI
        740c  AMD-756 [Viper] USB
+       7410  AMD-765 [Viper] ISA
+       7411  AMD-765 [Viper] IDE
+       7413  AMD-765 [Viper] ACPI
+       7414  AMD-765 [Viper] USB
 1023  Trident Microsystems
        0194  82C194
        2000  4DWave DX
diff -urN linux-2.4.1-p8-pristine/include/linux/ide.h 
linux-2.4.1-p8/include/linux/ide.h
--- linux-2.4.1-p8-pristine/include/linux/ide.h Thu Jan  4 14:51:21 2001
+++ linux-2.4.1-p8/include/linux/ide.h  Thu Jan 18 02:42:40 2001
@@ -738,6 +738,12 @@
 ide_startstop_t ide_do_reset (ide_drive_t *);
 
 /*
+ * Re-Start an operation for an IDE interface.
+ * The caller should return immediately after invoking this.
+ */
+ide_startstop_t restart_request (ide_drive_t *);
+
+/*
  * This function is intended to be used prior to invoking ide_do_drive_cmd().
  */
 void ide_init_drive_cmd (struct request *rq);
diff -urN linux-2.4.1-p8-pristine/include/linux/pci_ids.h 
linux-2.4.1-p8/include/linux/pci_ids.h
--- linux-2.4.1-p8-pristine/include/linux/pci_ids.h     Tue Jan  2 16:58:45 2001
+++ linux-2.4.1-p8/include/linux/pci_ids.h      Thu Jan 18 02:42:40 2001
@@ -279,6 +279,9 @@
 #define PCI_DEVICE_ID_AMD_LANCE_HOME   0x2001
 #define PCI_DEVICE_ID_AMD_SCSI         0x2020
 #define PCI_DEVICE_ID_AMD_FE_GATE_7006 0x7006
+#define PCI_DEVICE_ID_AMD_FE_GATE_7007 0x7007
+#define PCI_DEVICE_ID_AMD_FE_GATE_700E 0x700E
+#define PCI_DEVICE_ID_AMD_FE_GATE_700F 0x700F
 #define PCI_DEVICE_ID_AMD_COBRA_7400   0x7400
 #define PCI_DEVICE_ID_AMD_COBRA_7401   0x7401
 #define PCI_DEVICE_ID_AMD_COBRA_7403   0x7403
@@ -287,6 +290,10 @@
 #define PCI_DEVICE_ID_AMD_VIPER_7409   0x7409
 #define PCI_DEVICE_ID_AMD_VIPER_740B   0x740B
 #define PCI_DEVICE_ID_AMD_VIPER_740C   0x740C
+#define PCI_DEVICE_ID_AMD_VIPER_7410   0x7410
+#define PCI_DEVICE_ID_AMD_VIPER_7411   0x7411
+#define PCI_DEVICE_ID_AMD_VIPER_7413   0x7413
+#define PCI_DEVICE_ID_AMD_VIPER_7414   0x7414
 
 #define PCI_VENDOR_ID_TRIDENT          0x1023
 #define PCI_DEVICE_ID_TRIDENT_4DWAVE_DX        0x2000

Reply via email to