overlay - unable to load .dtb and .dtbo
I am using iMx8mm board and I have created .dtbo(device tree blob overlay ) file and copied it in /lib/firmware and .dtb (deivce tree blob ) file boot partition when I am doing load of .dtb and .dtbo file it giving error like
** Reading file would overwrite reserved memory **
I have attached screenshot of u-boot . Please guide what's my mistake here ,
I am following this process to load .dtbo and .dtb which is avialable at uboot/uboot_version/git/doc/README.fdt-overlays
Manually Loading and Applying Overlays
--------------------------------------
1. Figure out where to place both the base device tree blob and the
overlay. Make sure you have enough space to grow the base tree without
overlapping anything.
=> setenv fdtaddr 0x87f00000
=> setenv fdtovaddr 0x87fc0000
2. Load the base blob and overlay blobs
=> load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/base.dtb
=> load ${devtype} ${bootpart} ${fdtovaddr} ${bootdir}/overlay.dtb
3. Set it as the working fdt tree.
=> fdtaddr $fdtaddr
4. Grow it enough so it can 'fit' all the applied overlays
=> fdt resize 8192
5. You are now ready to apply the overlay.
=> fdt apply $fdtovaddr
6. Boot system like you would do with a traditional dtb.
For bootm:
=> bootm ${kerneladdr} - ${fdtaddr}
For bootz:
=> bootz ${kerneladdr} - ${fdtaddr}
Please note that in case of an error, both the base and overlays are going
to be invalidated, so keep copies to avoid reloading.
