Hi Alexandre,

On Tue, Feb 9, 2021 at 12:10 AM Alexandre Belloni
[off-list ref] wrote:

On 08/02/2021 23:14:02+0100, Arnd Bergmann wrote:

quoted

On Mon, Feb 8, 2021 at 10:35 PM Alexandre Belloni
[off-list ref] wrote:

quoted

Are there really any platforms with the dtb built into the firmware?
I feel like this is a mythical creature used to scare people into keeping
the DTB ABI stable. Aren't all the distribution already able to cope
with keeping DTB and kernel in sync?

I think most traditional PowerPC systems fall into this category, most

My understanding was that the traditional PPC systems had a small device
tree and usually are not affected by driver changes but I may be wrong.

They were much simpler than a modern SoC, with most functionality
implemented by modularity (e.g. PCI devices, I still like 'compatible
= "pci1186,100"'[1] ;-)
And the bindings were simple and stable (i.e. they did exist before the
platform was shipped).

[1] http://users.telenet.be/geertu/Linux/PPC/pci/ethernetAT4/

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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