Hello,

on request by Wolfgang, I have try to implement SoC access for AT91 arch with c structures. Additional I have add support for AT91RM9200 in at91 tree. I need to switch to a different project for more than half a year. So I think, it's time to publish the result.

What this Patch set do:

* add's the new temporary CONFIG_AT91_LEGACY to all board configs that not converted by this patch * add's a warning to all files, that not converted by this patch * add's the support for AT91RM9200 in at91 tree * add's c stucture SoC defines * convert all files cpu/../at91 to use c stucture SoC access * move the at gpio access to a real driver * add's at91_emac (AT91RM9200) network driver (NET_MULTI) * add's a new board (eb_cpux9k2) which demonstrates, how to use boards with AT91RM9200 cpu in at91 arch tree * convert following board: at91sam9263ek

this patch was tested with at91sam9263ek, eb_cpux9k2 and eol board with at91sam9261 cpu.

What is to do:

* convert all at91sam boards to new soc access * convert all at91rm9200 boards from AT91RM9200 arch to at91 arch * convert driver to new soc access * remove legacy code, if all boards and drives are ready

I hope there are somewhere a some volunteers to make the next steps.

Best regards

Jens Scharsig