[Soekris] Sandisk SDCFX-2048 in 4801

[Emilio Perea]

On Thu, May 10, 2007 at 01:11:26PM +0100, Stuart Henderson wrote:
> On 2007/05/10 13:51, Soren Kristensen wrote:
> > The net4801 added support for DMA on the CompactFlash from PCB rev 3, 
> > dated 040226. If you have an older board then you will need to tell the 
> > ATA driver to disable DMA, as it will detect that the disk support DMA 
> > but don't know it's not wired....
> 
> In OpenBSD, you do this with flags to the wd(4) driver.
> 
> You can edit a kernel which is already built using the -e option
> to config(8);
> 
> $ config -e -o newkernel bsd
> OpenBSD 4.1-current (GENERIC) #126: Mon May  7 12:43:41 MDT 2007
>     deraadt at i386.openbsd.org:/usr/src/sys/arch/i386/compile/GENERIC
> Enter 'help' for information
> ukc> change wd
>  42 wd* at wdc*|pciide* channel -1 flags 0x0
> change [n] y
> channel [-1] ? 
> flags [0] ? 0x0ff0
>  42 wd* changed
>  42 wd* at wdc*|pciide* channel -1 flags 0xff0
> ukc> quit
> 
> If you build your own custom kernel, you can change this in the
> configuration file.
> 
> The flags value I show here, 0x0ff0, disables DMA and UltraDMA
> and uses whichever PIO mode the device claims to support.

Thanks Stuart, Graham, Rod and Soren!  I didn't realize my board was not
"current".  I really appreciate all your help.

Emilio