Hello Together,
I'm happy to share you, I have updated the uboot binary version from existing 2018 to 2021.04. Here are the following steps I followed to update the uboot.
Created new Board files for RB A5D2x.(board/atmel/rugged_board_a5d2x/)
Modified the Nor flash driver information strings (drivers/mtd/spi/spi-nor-ids.c)
Created RB config include file to specify the configs directly(include/configs/rugged_board_a5d2x.h)
Created RB dts and dtsi files from sama5d27_som_ek1 reference(arch/arm/dts/rugged_board_a5d2x.dts, (arch/arm/dts/rb_a5d2x.dtsi)
Created defconfig
GitHub - jagannath-sahoo/u-boot-at91 at u-boot-2021.04-rba5d2x
Branch: u-boot-2021.04-rba5d2x
Thank you for sharing your input about the update of u-boot on sama5d2 on our community forum 😊