So we can have a persistent env and a bit safer barebox update. Also
switch the environment and update default depending on the bootsource,
as this is really helpful on an eval board where one might want to
have totally different systems on eMMC and SD card.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Recent versions of the i.MX8MQ ATF (like the one shipped with Barebox)
reside in a part of OCRAM, so there is no need to reserve any part of
SDRAM anymore.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add appropriate DT and PHY fixup code needed for i.MX8MQ EVK board.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add missing compatibility check to imx8mq_evk_mem_init() to prevent it
from being executed for other i.MX8MQ boards.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add BBU configuration to allow programming Barebox to eMMC. Normally
factory U-Boot is shipped in mmc0.boot0, so us using user partition
for Barebox should allow those two to coexist.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>