On Monday 06 July 2015 17:22:58 Rob Herring wrote: > On Mon, Jul 6, 2015 at 8:12 AM, Pali Rohár <pali.ro...@gmail.com> wrote: > > On Monday 06 July 2015 14:31:27 Tony Lindgren wrote: > >> * Pali Rohár <pali.ro...@gmail.com> [150706 05:25]: > >> > into which file should I put documentation about new DT > >> > properties? > >> > >> If it's Linux generic like linux,revision, then how about > >> Documentation/devicetree/bindings/revision.txt? > >> > >> For the ATAGs, Documentation/devicetree/bindings/arm/atag.txt? > >> > >> Regards, > >> > >> Tony > > > > Hm... now I'm thinking into which DT field should I put atags and > > revision. In previous emails you wrote to use "linux,atags", now > > "arm,atags"? And put them into root node? Or other? > > > > In arch/arm/boot/compressed/atags_to_fdt.c code I see that most > > atag properties are converted into "/chosen" node in DT... > > > > So what do you prefer for "revision" and what for "atags"? > > > > Some mentioned examples: > > > > "/revision" > > This one. This is a top level h/w property. > > > "/chosen/revision" > > "/linux,revision" > > "/chosen/linux,revision" > > ... > > > > "/atags" > > "/chosen/atags" > > "/linux,atags" > > "/chosen/linux,atags" > > This one. ATAGs are a Linux data struct. > > Rob >
Ok, and how read that property "/chosen/linux,atags" in function setup_machine_fdt() from file arch/arm/kernel/devtree.c ? of_get_flat_dt_prop() cannot be used unless somebody get me offset to node "/chosen"... Any idea? > > "/arm,atags" > > "/chosen/arm,atags" > > ... > > > > -- > > Pali Rohár > > pali.ro...@gmail.com -- Pali Rohár pali.ro...@gmail.com
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