barebox_arm_reset_vector() is a global function but we never provided a
prototype anywhere. The prototypes differ for the different boards, so
to provide a common prototype we must harmonize them.

void barebox_arm_reset_vector(uint32_t r0, uint32_t r1, uint32_t r2)

Should be suitable for all boards.

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

The base addresses used in at91sam926x_board_init() differ with each
SoC. The board knows which SoC we are running on though, so create and
use SoC specific variants of these functions which pass the appropriate
base addresses to at91sam926x_board_init().

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

Add SoC namespace to matrix define so we have one source less of
conflicting defines.

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

For all Calao USB boards move reset vector to board code.
Introduce two different lowlevel.c files, one
for each processor.
Include renames to make filenames similar.

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>