Re: 2.4.21 ServerWorks DMA Bugs

From: Alan Cox (
Date: Sun Jul 06 2003 - 02:40:38 EST

On Sad, 2003-07-05 at 17:58, Ryan Mack wrote:
> That at least explains the lack of DMA, but why does non-DMA IO result in
> such significant clock skew?

Because for PIO we default to I/O with IRQ blocked (which is needed for
some older 486 type hardware). I really should make setup_pci set the
unmask flag

> Also, does anybody know what the status of the failure to recognize higher
> UDMA modes on the CSB5 chipset? Is there a working patch out there?

CSB5 UDMA works properly to all my knowledge

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