[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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