Hi all,
This patch series adds support for Renesas Salvator-X and H3ULCB
development boards equipped with revision ES2.0 of the R-Car H3 SoC.
Our goal is to have a single kernel image supporting both ES1. and ES2.0
revisions of the R-Car H3 SoC, and let r8a7795-salvator-x.dtb and
r8a7795-h3ulcb.dtb represent the latest production hardware.
As R-Car H3 ES1.x SoCs are pre-production revisions, the DTB files for
these revisions are renamed to r8a7795-es1-salvator-x.dtb resp.
r8a7795-es1-h3ulcb.dtb.
While this will cause a slight inconvenience for developers using
pre-production hardware, it will make it easier to deploy production
hardware, and phase out support for pre-production hardware later.
Note that unless you need access to new features not yet described in
DT, you can keep on using the existing DTBs on pre-production hardware.
- Patch 1 adds support for the R-Car H3 ES2.0 Soc, by providing 2
.dtsi files: r8a7795.dtsi (ES2.0), and r8a7795-es1.dtsi (ES1.x).
- Patch 2 adds support for Salvator-X with R-Car H3 ES2.0 by providing
2 .dts files: r8a7795-salvator-x.dts (ES2.0), and
r8a7795-es1-salvator-x.dts(ES1.x),
- Patch 3 adds support for ator-X with R-Car H3 ES2.0 by providing 2
.dts files: r8a7795-salvator-x.dts (ES2.0), and
r8a7795-es1-salvator-x.dts(ES1.x).
While patch 1 has no user-visible impact, patches 2 and 3 do.
Changes compared to v3:
- Remove "/remove/overrides", as r8a7795-es1.dtsi does additions only,
- Move node and property deletion guidelines above the scissors,
- Rebase on top of r8a7795 HDMI support (but most of that is "hidden"
thanks to git's smart copy from/to patch format),
Changes compared to v2:
- Rebase on top of common Salvator-X board support extraction,
- Remove the "compatible" property from the DU node in r8a7795.dtsi,
in addition to the "vsps" property,
- Add support for ES2.0-based H3ULCB.
For changes compared to v1 (which was not posted), please refer to the
individual patches.
Dependencies:
- This patch series is against renesas-devel-20170515-v4.12-rc1,
- Thanks to git's smart copy from/to patch format, it should be
applicable with and without "[PATCH 0/2] arm64: dts: salvator-x: Move
HDMI0 to common Salvator-X board support".
This series is available in the topic/r8a7795es2-dt-v4 branch of my
renesas-drivers git repository at
git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-drivers.git.
An integration branch (incl. all dependencies) for testing is provided
as topic/r8a7795es2-integration. I plan to update this branch when any
of the dependencies are updated.
This has been tested on Salvator-X (H3 ES1.0 and ES2.0), and H3ULCB with
H3 ES1.1.
This has not been tested on H3ULCB with H3 ES2.0 due to lack of
hardware, so perhaps you want to defer patch 3. However, adding ES2.0
support to both boards at the same time has its advantages (e.g. to answer
the question "in which kernel version do I need a DTB with 'es1' in its
name?").
Thanks for applying (at least) the first two patches!
Geert Uytterhoeven (3):
arm64: dts: r8a7795: Add support for R-Car H3 ES2.0
arm64: dts: r8a7795: salvator-x: Add support for R-Car H3 ES2.0
arm64: dts: r8a7795: h3ulcb: Add support for R-Car H3 ES2.0
arch/arm64/boot/dts/renesas/Makefile | 1 +
.../{r8a7795-h3ulcb.dts => r8a7795-es1-h3ulcb.dts} | 4 +-
...5-salvator-x.dts => r8a7795-es1-salvator-x.dts} | 4 +-
arch/arm64/boot/dts/renesas/r8a7795-es1.dtsi | 84 ++++++++++++++++++++++
arch/arm64/boot/dts/renesas/r8a7795-h3ulcb.dts | 2 +-
arch/arm64/boot/dts/renesas/r8a7795-salvator-x.dts | 2 +-
arch/arm64/boot/dts/renesas/r8a7795.dtsi | 71 +-----------------
7 files changed, 92 insertions(+), 76 deletions(-)
copy arch/arm64/boot/dts/renesas/{r8a7795-h3ulcb.dts => r8a7795-es1-h3ulcb.dts} (91%)
copy arch/arm64/boot/dts/renesas/{r8a7795-salvator-x.dts => r8a7795-es1-salvator-x.dts} (94%)
create mode 100644 arch/arm64/boot/dts/renesas/r8a7795-es1.dtsi
--
2.7.4
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
