at91_pmc_write() needs a compile time base address, so rather use plain
read/writel.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

AT91_SDRAM_BASE is only used in board code which known the SDRAM base
address, so we do not need a common define.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Use AT91RM9200_BASE_PIOC rather than AT91_BASE_PIOC so we can get rid of
the latter later.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Include deletion of now unused at91rm9200_lowlevel_init.c
and related CONFIG symbols

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>