about the dm9000 in mini2440

Yi Qingliang niqingliang2003 at gmail.com
Fri Dec 7 08:05:39 EST 2012

I got it finally, but not root cause.


1. connect jtag with openjtag(not the official openjtag, but 100ask.net produced 
based on openmoko's).
2. use ON/OFF switch on the board

then I got "Wrong databus"
but if I disconnect the power line, and reconnect it, everything OK.
and if not connect jtager, and use ON/OFF switch, everyghing OK.

what's the fuck problem?

On Thursday, December 06, 2012 09:09:10 AM Juergen Beisert wrote:
> Yi Qingliang wrote:
> > the address of dm9000 is 0x28000000, it should be cs5, but in function
> > "mini2440_devices_init", it set the cs4 instead, why??
> Hmm, the schematics of the Mini2440 board tells me, the processor's GCS4
> (ball D3) is in use for the DM9000.
> GCS5 is connected to the CON5 instead.
> Regards,
> Juergen

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