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SubjectPromise PDC20262 in kernel 2.4.x
Setup: Dell Dimension XPS T-700r
Onboard PCI Controller:
Primary IDE: empty
Secondary IDE: CD, CD-RW
Promise PDC 20262 IDE card
Primary: Quantum Fireball 30Gb
Secondary: Seagate ST330630A

Symptoms: No recent stock distribution install disk I have will boot. (RH 7.x,
MDK 8.x) The boot sequence gets all the addresses right, but dies after
printing
ide2 at 0x10f8-0x10ff,0x10f2 on irq 10
I haven't found kernel options that will cure this. The addresses printed
by the kernel are all correct, and
ide0=noautotune,ide2=noautotune
has no effect. (This has all been reported before. If someone can point
me to a FM to R, I would be eternally grateful :-)

BUT

I discovered by accident that a kernel with NO Promise support compiled
in boots just fine! The resulting system is slow - I suspect it's not
using DMA - but the system does run.
This statement applies to kernels 2.4.5, 2.4.10 and 2.4.14.
(For anyone with a similar problem who might be reading this, the
implication is that a disk built on another machine with a custom
kernel will boot when installed.)

So... anyone have any insight? I'm willing to change configuration,
test patches, provide more information, etc.

Gory details:

Kernel configuration that works (IDE stuff only):

CONFIG_IDE=y
CONFIG_BLK_DEV_IDE=y
CONFIG_BLK_DEV_IDEDISK=y
CONFIG_BLK_DEV_IDEFLOPPY=y
CONFIG_BLK_DEV_IDESCSI=y
CONFIG_BLK_DEV_CMD640=y
CONFIG_BLK_DEV_CMD640_ENHANCED=y
CONFIG_BLK_DEV_IDEPCI=y
CONFIG_IDEPCI_SHARE_IRQ=y
CONFIG_BLK_DEV_IDEDMA_PCI=y
CONFIG_BLK_DEV_ADMA=y
CONFIG_BLK_DEV_OFFBOARD=y
CONFIG_IDEDMA_PCI_AUTO=y
CONFIG_BLK_DEV_IDEDMA=y
CONFIG_BLK_DEV_PIIX=y
# CONFIG_PIIX_TUNING is not set
# CONFIG_BLK_DEV_PDC202XX is not set
# CONFIG_PDC202XX_BURST is not set
# CONFIG_PDC202XX_FORCE is not set


Diffs with kernel configuration that doesn't work:

< # CONFIG_BLK_DEV_PDC202XX is not set
---
> CONFIG_BLK_DEV_PDC202XX=y


(Turning on CONFIG_PDC202XX_BURST made no difference.)

IDE related messages from successful boot (kernel with no Promise support):


Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
PIIX4: IDE controller on PCI bus 00 dev 39
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
ide1: BM-DMA at 0x10e8-0x10ef, BIOS settings: hdc:pio, hdd:DMA
PDC20262: IDE controller on PCI bus 00 dev 70
PCI: Found IRQ 10 for device 00:0e.0
PDC20262: chipset revision 1
PDC20262: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x1080-0x1087, BIOS settings: hda:pio, hdb:pio
ide2: BM-DMA at 0x1088-0x108f, BIOS settings: hde:pio, hdf:pio
hda: QUANTUM FIREBALLP LM30.0, ATA DISK drive
hdc: _NEC DV-5700A, ATAPI CD/DVD-ROM drive
hdd: SONY CD-RW CRX140E, ATAPI CD/DVD-ROM drive
hde: ST330630A, ATA DISK drive
ide0 at 0x1400-0x1407,0x10f6 on irq 10
ide1 at 0x170-0x177,0x376 on irq 15
ide2 at 0x10f8-0x10ff,0x10f2 on irq 10
hda: 58633344 sectors (30020 MB) w/1900KiB Cache, CHS=58168/16/63
hde: 59777640 sectors (30606 MB) w/2048KiB Cache, CHS=59303/16/63
ide-floppy driver 0.97.sv
Partition check:
hda: [PTBL] [3649/255/63] hda1
hde: [PTBL] [3720/255/63] hde1 hde2 hde3 hde4 < hde5 hde6 hde7 hde8 hde9 hde10 >
ide-floppy driver 0.97.sv
SCSI subsystem driver Revision: 1.00
scsi0 : SCSI host adapter emulation for IDE ATAPI devices
Vendor: _NEC Model: DV-5700A Rev: 1.05
Type: CD-ROM ANSI SCSI revision: 02
Vendor: SONY Model: CD-RW CRX140E Rev: 1.0n
Type: CD-ROM ANSI SCSI revision: 02
Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0
Attached scsi CD-ROM sr1 at scsi0, channel 0, id 1, lun 0
sr0: scsi3-mmc drive: 17x/40x cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.12
sr1: scsi3-mmc drive: 32x/32x writer cd/rw xa/form2 cdda tray
usb.c: registered new driver usbdevfs


IDE related messages from failed boot:

PDC20262: (U)DMA Burst Bit ENABLED Primary PCI Mode Secondary PCI Mode

appears before
ide0: BM-DMA at 0x1080-0x1087, BIOS settings: hda:pio, hdb:pio
and the system dies after
ide2 at 0x10f8-0x10ff,0x10f2 on irq 10


hdparm -i /dev/hda

/dev/hda:

Model=QUANTUM FIREBALLP LM30.0, FwRev=A35.0700, SerialNo=186011032806
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs }
RawCHS=16383/16/63, TrkSize=32256, SectSize=21298, ECCbytes=4
BuffType=DualPortCache, BuffSize=1900kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=58633344
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4
AdvancedPM=no
Drive Supports : ATA/ATAPI-5 T13 1321D revision 1 : ATA-1 ATA-2 ATA-3 ATA-4 ATA-5

hdparm -i /dev/hde

/dev/hde:

Model=ST330630A, FwRev=3.21, SerialNo=3CK04SY4
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=0
BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=off
CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=59777640
IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2 udma0 udma1 udma2 udma3 *udma4
AdvancedPM=no
Drive Supports : Reserved : ATA-1 ATA-2 ATA-3 ATA-4

One final note: The RH 7.2 kernel (and maybe earlier ones, I can't remember)
puts the Promise controller at hde/f and hdg/h instead, but the net result
is the same.
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