[PATCH v2 0/2] ARM: decompressor: support AUTO_ZRELADDR and appended DTB

[Linus Walleij]

On Mon, Feb 2, 2026 at 12:11 PM Marc Zyngier <maz at kernel.org> wrote:

> If you can boot the kernel, you can also boot a secondary bootloader
> that will do the right thing by exposing a DT. Fixing the boot flow
> should be the priority, rather than adding more band-aids to the
> kernel.

I have used this approach with some Broadcom machines equipped
with the CFE thing they are using. I have that boot U-Boot and
U-boot boots the kernel. Works fine.

However, I think it is a thick requirement to put on hobbyist
contributors to go and write entite boot loaders from scratch,
I think it's a fine requirement to put on Qualcomm or Renesas
paid maintainers.

Another reason would be that appended DTB is in the same
league as the GPIO sysfs despite we GPIO maintainers hate it:
a feature users highly desire because it's easy and convenient
and practical and quick and thus refuse to let us drop. Every time
we try to deprecate it more we get a good beating.

Yours,
Linus Walleij