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    SubjectRe: [PATCH] Add PCI device ID for IT8152 RISC-to-PCI chip
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    On Tue, Feb 13, 2007 at 03:30:29PM +0000, Russell King wrote:
    > On Tue, Feb 13, 2007 at 10:16:33AM -0500, Lennart Sorensen wrote:
    > > There doesn't seem to be very many
    > > arm systems with PCI, so it's hard to tell.
    >
    > NetWinder, EBSA285 (which the NetWinder is a derivative of), the N2100,
    > etc are PCI based and are all well proven in the field.

    Which PCI controller do they use?

    > However, I have come across issues with what I suspect are buggy
    > bridges - some southbridges require out of band cache control
    > signalling and don't behave properly if you don't provide this (despite
    > having modes to disable such signalling) and some PCMCIA bridges which
    > don't like delayed read responses from host bridges.

    Well certainly on the cpu board we were trying out, it didn't work,
    whether it was a buggy PCI bridge, or a bad design I am not sure. I
    suspect the chip.

    > That said, I've an EBSA285 with Promise UDMA, 3com NIC, S3 VGA and a
    > plug-in southbridge card which has been running since about 1999 or so
    > and the only real data corruption problem I've heard of was when a track
    > on my Promise UDMA card was eaten by the sticky label resulting in silent
    > corruption of writes to the disks.

    Ouch.

    > (I did consider replacing the Promise UDMA card, but the IT821x card
    > I bought to replace it didn't have all the pins on the chip soldered
    > down - to the extent that even a PC couldn't recognise the PCI card.
    > So I'm running on the assumption that the self-repaired Promise UDMA
    > card is all round going to be more reliable than the as yet unproven
    > IT821x card.)

    And they shipped a card in that state?

    --
    Len Sorensen
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