[U-Boot-Users] [OT] cs8900 in u-boot
Erwin Rol
erwin at muffin.org
Mon Apr 7 09:52:11 CEST 2003
On Mon, 2003-04-07 at 07:00, Robert Schwebel wrote:
> Hi,
>
> this is somewhat offtopic, but I know no better place to ask. I'm trying
> to make the cs8900 ethernet chip on the Cogent CSB226 work with u-boot
> and Linux. The chip is mapped to 0x08000000 / CS2 and it is connected in
> I/O mapped mode.
>
> However, I do not see anything usefull in u-boot. This is how the port
> area looks after power on:
>
> uboot> md.w 0x08000000 10 (1) (2) (3)
> 08000000: 0000 a1ff 0000 a1ff 0009 a1ff 0000 a1ff ................
> 08000010: 0000 a1ff 3136 a1ff 00d6 a1ff 00d6 a1ff ....61..........
>
This almost looks like accessing a 16bit device with a 32bit CS, and so
getting (the same) junk on the first 16bit for every read.
- Erwin
> Cheers,
> Robert
--
Dipl.-Ing. Erwin Rol - Software Engineering
tel: +49-(0)8024-479377 gsm: +49-(0)171-6929198 fax: +49-(0)8024-479379
email: erwin at muffin.org
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