Software environment: L5.4.47_2.2.0
Hardware i.MX8QXPC0 EVK board
In the uuu script we can see the bootloader imx-boot-imx8qxpc0mek-sd.bin-flash is necessary.
The default BSP build generate in the yocto project is with the spl, some customers are confused about the how to build the imx-boot-imx8qxpc0mek-sd.bin-flash.
Here I give the manually compile way and generate it in yocto.
In the yocto generate it is more convenient than the manually compile way.
Hope this can do help for you.