[PATCH 7/7] tools: kwboot: Add knowledge of Marvell's TIM

[Chris Packham]

On Mon, Sep 19, 2022 at 11:03 AM Pali Rohár <pali at kernel.org> wrote:
>
> On Monday 19 September 2022 10:57:10 Chris Packham wrote:
> > Having looked more into mox-imager (and WtpDownloader) I've realised
> > that the AlleyCat5 uses something called "TIM" but it's different to
> > the format used by Armada-3700. I suspect what I'm actually dealing
> > with is a TIMv0 that pre-dates the version used by Armada-3700. All
> > the more reason to do something new instead of trying to shoe-horn it
> > into one of the existing places. I'll probably end up making a fork of
> > your mvebu64boot and adapting it (mox-imager just does too much).
>
> Hello! If that AC5 TIM format is different than A3720 TIM then it really
> makes sense to create a new tool. Forking mvebu64boot into completely
> new project seems like the easiest way how to achieve working tool
> without being afraid to break existing support.
>
> Anyway, is not there any Marvell tool for this AC5 TIM format? Like
> A3720 TBB or WtpDownloader?

Nope the only official support is send the boot pattern using
ascii/raw then send the image using xmodem. Which is what led to me
looking for an alternative that can actually tell when the SoC has
detected the pattern and hand off to the xmodem download. Supporting
the signed images would be a bonus but not for my immediate need for
recovering from bad bootloaders.