Hi Alexandre, On Tue, Feb 9, 2021 at 12:10 AM Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> wrote: > On 08/02/2021 23:14:02+0100, Arnd Bergmann wrote: > > On Mon, Feb 8, 2021 at 10:35 PM Alexandre Belloni > > <alexandre.belloni@xxxxxxxxxxx> wrote: > > > 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@xxxxxxxxxxxxxx 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
