mci: add Atmel AT91 MCI driver ...

The driver supports push and pull transfers.
Tested on at91sam9m10 SoC.

Signed-off-by: Hubert Feurstein <h.feurstein@gmail.com>

at91sam9260/at91sam9263: use the same id as in the kernel for the uart devices ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

driver: use id as -1 for auto assigned id ...

before if you specify id = 0 the next available id will be taken
otherwise fail if already registered now as in linux we use -1

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91: implement clock framework ...

this implementation is based on linux one (v2.6.35-rc5-76-gd0c6f62)
it will calculate all the clock dynamically instead of statictly
this will use also the new clock framework

it will also print the clock status after the console init

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91sam9: switch to the same api as the kernel ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

at91: add cpu devices common api ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>