We are using imx7 Colibri with Iris Carrier board. We want to put everything (u-boot, kernel, dtb, rootfs) in SD card and boot the u-boot and kernel from SD card. For this to happen we have made the changes in the Carrier board as below (as per the Iris Carrier Board datasheet):
- In Boot Mode Header (JP1), pins 2&3 are shorted to enter into SD boot mode.
- Assembled 100 Ohm resistors R109, R111, R112 and R113 on the Bottom Layer.
With this change, the u-boot is still coming up from NAND flash.
How, to make the u-boot in SD card to come up?
Thanks & Regards