On Mon, Aug 6, 2018 at 6:34 AM Robert P. J. Day <rpjday@xxxxxxxxxxxxxx> wrote:
>
>
> while the current DTSpec says nothing about the chosen node possibly
> having a unit-address, if i search the current linux kernel code base,
> there are a few examples of just that:
>
> $ git grep chosen@
> arch/mips/generic/yamon-dt.c: chosen_off = fdt_path_offset(fdt, "/chosen@0");
> arch/mips/generic/yamon-dt.c: chosen_off = fdt_path_offset(fdt, "/chosen@0");
Nothing MIPS based should need this I think.
> arch/powerpc/boot/oflib.c: chosen = of_finddevice("/chosen@0");
> drivers/of/base.c: of_chosen = of_find_node_by_path("/chosen@0");
> drivers/of/fdt.c: offset = fdt_path_offset(fdt, "/chosen@0");
> drivers/of/fdt.c: (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
>
> is there some lingering value to the node name "chosen@0"? or should
> this all be simplified to just "chosen"?
These are needed for some PPC system(s) though I don't have any clue
which ones specifically.
Rob
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
