Default environments: Do not continue when tftp failed ...

When we fail to download the kernel image (for example when the
user pressed ctrl-c) do not try to boot the image

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

[pm9263] use define rather than plain integer value for armlinux_set_architecture ...

armlinux_set_architecture uses a plain integer value, this patch changes this
to use the define from mach-types.h

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[pm9263] remove ifdef around dev_add_partition ...

This patch removed the ifdef around dev_add_partition.
Since dev_add_partition becomes a void function if compiling
u-boot w/o partition support.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[pm9263] add sane default environemnt ...

This patch adds a sane default environemnt for the pm9263 bsp.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

[pm9263] use correct architecture a.k.a. machine ID ...

The "pm9263" has the official machie ID 0x5c3, not 0x4b2.
This patche fixes this.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

PM9263 board: add lowlevel_init to start from reset ...

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

Net: Remove all hardcoded MAC addresses from default environments ...

While very convenient during debugging having MAC addresses in default
environments is a very bad idea. Stop it!

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

add Ronetix pm9263 board support ...

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