[Bug 1962289] Re: Mediatek AIoT i500 support

[Loïc Minier]

@Ethan: sounds good; perhaps one way to think about it could be:
1) the kernel knows which dtbs and dtbos are supported with a particular kernel build
2) flash-kernel has a clear and stable interface to pull the right bits into a FIT image but does not need to keep track of the list in flash-kernel itself

One way to go would be to agree that all *.dtbo in a particular
subdirectory of the kernel deb should be included, or even better,
having a list of dtbos for a particular board; flash-kernel could keep
the FIT image template, but would iterate over the dtbos listed in the
kernel-provided file to generate the FIT image.

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https://bugs.launchpad.net/bugs/1962289

Title:
  Mediatek AIoT i500 support

Status in flash-kernel package in Ubuntu:
  New

Bug description:
  [Impact]
  Add Mediatek AIoT i500 support

  [Test Plan]
  Install the test flash-kernel package with the fix, a file in path Boot-FIT-Path will be created, and the system should be able to boot.
  Test cases:
  1. jammy + Xilinx Kria board: Pass
  2. focal + Mediatek AIoT i500 board: Pass

  [Where problems could occur]
  The fix contains
  1 Add DB entry for Mediatek AIoT i500 board
  Just add a new board to db. There will not be any regression.
  2 Add "kernel_ver" value for the ITS file which includes dts coming from linux package.
  Only Xilinx and Mediatek AIoT board will call mkimage_fit. And, Medaitek AIoT board's dtbs come from linux packages. There will not be any regression.

  [Other Info]
  See LP: #1946212

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