arm: mx6: cm_fx6: change dtb node for ethaddr

When passing eth address to Linux via dtb, the "local-mac-address"
property should be set for "/soc/aips-bus@02100000/ethernet@02188000",
not "/fec".

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
arm: mx6: introduce disable_sata_clock

Implement disable_sata_clock for mx6 SoCs.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
sata: implement reset_sata for dwc_ahsata

Add reset_sata() to the sata driver interface and implement it
for dwc_ahsata. This function cleans up after sata_init(), and
therefore accepts a device number like sata_init() does.
A dummy implementation is provided for the rest of the drivers.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
cmd_sata: implement sata stop command

Implement sata stop command.
This introduces the __sata_stop() weak function, which mirrors
the weak __sata_initialize() function, giving users the option of
undoing the custom steps performed in overrides of sata_initialize().

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
arm: mx6: cm_fx6: implement board specific sata stop

Provide board specific implementation for sata stop command for
cm_fx6.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
arm: imx: stop sata on boot

Ideally, the Linux kernel should get the hardware in its most
untouched state. For the most part, U-Boot does not reset the various
subsystems it touches before boot, and usually Linux deals with it, but
on some boards (cm_fx6) the Linux kernel fails to detect the ssd
correctly if sata is used by U-Boot.

Power off sata on OS boot so that Linux will have a clean state to work
with.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
sata: fix reset_sata for dwc_ahsata

- fix crash when sata device is not initialized
- remove disable_sata_clock() since it is not clear which clock for which
  device should be disabled here
- call disable_sata_clock() for mx6 in preboot_os instead

Signed-off-by: Soeren Moch <smoch@web.de>
i2c: mxc_i2c: convert printf()s to debug()

The content of the printf()s in mxc_i2c is all debug oriented, and thus
should not be exposed to the user by default. Convert the printf()s to
debug() calls.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
arm: mx6: cm_fx6: increase size of malloc area

Increase size of malloc area to make room for framebuffer
and other such big allocations.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
[HACK] arm: mx6: cm_fx6: bring back old DRAM config

The mainline function for DRAM config hasn't been fully tested yet,
so for now revert to the version from previous releases.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>