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SubjectRe: Query: No IDE DMA for IBM 365X with PIIX chipset?
Date
On Thu, 01 Jun 2006 17:55:28 +0200, Ondrej Zary <linux@rainbow-software.org> wrote:

>Alan Cox wrote:
>> On Sul, 2006-05-28 at 15:29 +1000, Grant Coady wrote:
>>> PIIXa: chipset revision 2
>>> PIIXa: not 100% native mode: will probe irqs later
>>> PIIXa: neither IDE port enabled (BIOS)
>>
>> It thinks the chip has not been activated, and then falls back to the
>> legacy driver. Could be incorrect enable checks or other problems.
>>
>>> 00:01.0 ISA bridge: Intel Corporation 82371FB PIIX ISA [Triton I] (rev 02)
>>> Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
>>> Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
>>> Latency: 0
>>> 00: 86 80 2e 12 07 00 80 02 02 00 01 06 00 00 00 00
>>> 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>> 20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>> 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>>
>> 82371FB, whee thats prehistoric 8)

Only a little ten-year-old...
>>
>> I don't actually have any support for the 371FB PIIX in either driver as
>> I've not been able to find a source for the data sheet to the chip. It
>> may work if added to the drivers/scsi/pata_oldpiix identifiers in the
>> 2.6.17rc5-mm kernel. Would be useful to know as I don't know anyone else
>> with that chip any more 8)

Boots 2.6.16.18, 2.6.17rc5 but panics with 2.6.17rc5-mm2 :(

>Isn't that this one?
>http://www.intel.com/design/chipsets/datashts/290550.htm
>Used in i430FX chipset. I have some boards with that and they always
>worked fine. Haven't tried any recent kernels, though.

Yep:

2.2.2. DID-DEVICE IDENTIFICATION REGISTER (Function 0)
Address Offset: 02-03h
Default Value: 122Eh (PIIX) <<==

~# lspci -n
00:00.0 Class 0600: 8086:1235 (rev 02)
00:01.0 Class 0601: 8086:122e (rev 02) <<==
00:03.0 Class 0300: 1023:9320 (rev e3)

Grant.
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