[U-Boot] [PATCH v1 01/21] ARM: DTS: vybrid: Add vf-u-boot.dtsi to set 'u-boot, dm-pre-reloc' in soc
Lukasz Majewski
lukma at denx.de
Wed Jan 16 07:33:03 UTC 2019
On Tue, 15 Jan 2019 21:24:31 -0500
Tom Rini <trini at konsulko.com> wrote:
> On Tue, Jan 15, 2019 at 08:58:58AM +0100, Lukasz Majewski wrote:
> > Hi Tom,
> >
> > > On Mon, Jan 14, 2019 at 03:17:20PM +0100, Lukasz Majewski wrote:
> > >
> > > > This property is necessary to allow pinctrl configuration before
> > > > relocation (uart, DDR pins).
> > > >
> > > > Separate file will facilitate updating vf.dtsi from the Linux
> > > > kernel.
> > > >
> > > > Signed-off-by: Lukasz Majewski <lukma at denx.de>
> > > > ---
> > > >
> > > > arch/arm/dts/vf-u-boot.dtsi | 11 +++++++++++
> > > > arch/arm/dts/vf.dtsi | 1 +
> > > > 2 files changed, 12 insertions(+)
> > > > create mode 100644 arch/arm/dts/vf-u-boot.dtsi
> > >
> > > We should call the file 'vf610-u-boot.dtsi' which will get it
> > > automatically included in all vf610 platforms but still allow
> > > boards that need their own -u-boot.dtsi file to #include
> > > vf610-u-boot.dtsi
> >
> > Please forgive me but I do have a hard time to parse the above
> > sentence.
> >
> > Do you propose to:
> >
> > 1. Rename vf-u-boot.dtsi -> vf610-u-boot.dtsi ?
> >
> > And then just include it in the generic (easily ported from Linux)
> > vf.dtsi file?
> >
> > or
> >
> > 2. Shall I rename vf-u-boot.dtsi -> vf610-u-boot.dtsi and then do
> > not include it into vf.dtsi, but it shall be included in board dts
> > files (like bk4.dtsi) ?
>
> Neither exactly. See scripts/Makefile.lib for the rules that
> automatically pick up various -u-boot.dtsi suffixed files. "vf610"
> will be picked up and "vf" will not. You do _not_ need include it in
> other non "-u-boot.dtsi" files.
Thanks Tom for sharing this information. I was not aware that such
*-u-boot.dtsi files are automatically picked for device tree
compilation.
> You will likely end up with
> vf610-bk4-u-boot.dtsi or something to both set stdout-path
> under /chosen and #include vf610-u-boot.dtsi.
Why do I need to #include vf610-u-boot.dtsi in the
vf610-bk4-u-boot.dtsi file as the vf610-u-boot.dtsi is picked
automatically for the compilation?
I guess that I shall #include vf610-bk4-u-boot.dtsi explicitly to the
bk4.dts (as it is not picked up) ?
> If you don't need a
> board specific -u-boot.dtsi file then just vf610-u-boot.dtsi gets
> picked up automatically and you're done.
>
Yes. Now it is clear.
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 488 bytes
Desc: OpenPGP digital signature
URL: <http://lists.denx.de/pipermail/u-boot/attachments/20190116/445954eb/attachment.sig>
More information about the U-Boot
mailing list