Messages in this thread | | | Date | Fri, 16 Mar 2001 11:03:40 +0000 ( ) | From | John Heil <> | Subject | IDE UDMA on a CMD-648 Chip |
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I've acquired a UDMA66 capable IDE card with a CMD-648 chip, which is supposed to provide me with ide2 and ide3.
ide2 is empty and ide3 has a writeable cdrom and an IDE zip drive on it.
At boot up, the card's bios scan recognizes the cdrom and zip as master and slave on its secondary ide i/f, which is correct.
However, it indicates that since it... 'Can't find a UDMA66 capable device' it is 'Disabling the UDMA66 bios'.
I've done the usual append for ide3, in lilo.conf but w/o benefit.
Kernel is currently 2.2.16, The mobo is an Asus A7V133 and the CPU is an 1.1 Athlon South bridge is a via 686b which runs fine at UDMA100 on a pair of Maxtors on IDE-0.
I'll be upgrading this machine to 2.4.n-whatever in about 3 wks but... ...I'd like to get the 2 devices operational on this or some other 2.2.x, before that, if I can.
I can't find the chip's datasheet. CMD only gives it to direct customers. I do have the datasheet for the CMD-646U, a prior UDMA supporting chip.
I take this to be a bug in the on-card Bios.
I am hoping to circumvent the bios. I assume it will involve some measure of IDE initialization which I don't mind coding if it does not exist yet.
So has anyone encountered this chip yet and are there any existing solutions or suggestions.
Thanx much
The CMD-648 chip's vital statistics follow...
root@scsoftware50:~# lspci -vvxxxs 00:0c.0 00:0c.0 RAID bus controller: CMD Technology Inc PCI0648 (rev 01) Subsystem: CMD Technology Inc PCI0648 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: 32 (500ns min, 1000ns max) Interrupt: pin A routed to IRQ 11 Region 0: I/O ports at 9400 Region 1: I/O ports at 9000 Region 2: I/O ports at 8800 Region 3: I/O ports at 8400 Region 4: I/O ports at 8000 Capabilities: [60] Power Management version 1 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=3 PME- 00: 95 10 48 06 07 00 90 02 01 00 04 01 00 20 00 00 10: 01 94 00 00 01 90 00 00 01 88 00 00 01 84 00 00 20: 01 80 00 00 00 00 00 00 00 00 00 00 95 10 48 06 30: 00 00 00 00 60 00 00 00 00 00 00 00 0b 01 02 04 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02 50: 40 ec 00 c0 00 c0 00 dc 32 40 00 00 00 00 00 00 60: 01 00 21 06 00 60 00 f0 00 00 00 00 00 00 00 00 70: 00 08 00 f0 94 0a 00 00 00 82 00 f0 c8 01 48 2a 80: 00 00 00 00 00 00 00 00 00 00 00 00 95 10 48 06 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
----------------------------------------------------------------- John Heil South Coast Software Custom systems software for UNIX and IBM MVS mainframes 1-714-774-6952 johnhscs@sc-software.com http://www.sc-software.com -----------------------------------------------------------------
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