tree 51025156e3b9144e59dcc165da6853a6de38ff1d
parent 1181e4a91e4443226e0ca063c9c6975ab88cbd64
author Lukasz Majewski <lukma@denx.de> 1570716684 +0200
committer Stefano Babic <sbabic@denx.de> 1570999751 +0200

imx: tpc70: Add board_boot_order() to distinguish between eMMC and SD boot

The TPC70 can boot from SD card (debug/development) and eMMC (production).
The board_boot_order() function provides a run time check for the device
from which one wants to boot (it is selected by GPIO pins setup).

Moreover, a fallback to SD card is provided if the detection is not
possible or working properly.

Signed-off-by: Lukasz Majewski <lukma@denx.de>