The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

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

nand.c issues a warning when imx_nand_set_layout is
empty. We don't need this function on i.MX53, so
silence the warning.

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

To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.

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

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

Recent changes to the nand_imx driver broke it for i.MX21 systems;
the i.MX21 NAND controller is more akin to the one in i.MX27/i.MX31,
than to the one in i.MX25/i.MX35.

Signed-off-by: Ivo Clarysse <ivo.clarysse@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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

FMCR is (*((volatile u32 *)(x))) (0x10027814) and thus this leads
to a data abort.

Signed-off-by: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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