How do you handle multiple kernel modifications / dtb files?

Autonomous Machines Jetson & Embedded Systems Jetson Xavier NX
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I recently purached a A203 (Version 2) Carrier Board and they have provided me with a tegra194-p3668-all-p3509-0000.dtb file that was built using JetPack 4.6.1 / L4T 32.7.1.

I also have a camera I purchased also that I was given these files also but was built using JetPack 4.5.1 / L4T 32.6.1
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But was also given the raw patch files to build into the kernel:
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What would be the appropriate way of combining all this to get one DTB file that I can flash and an Image file that will have everything that I need kernel wise and device tree wise so I can subsequently easily flash this onto another NX I have and not have to worry about recompiling the kernel, flashing dtb additions, etc? I have never worked with DTB files before so I don’t know all the quirks about them or how they fully work.

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hello moezruo6,

there’s CBoot functionality to load the device tree blob via file system, you may check [Kernel Boot Sequence Using extlinux.conf] session to define different boot-up options for loading the kernel-dtb binary file from each FDT entry.

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