| Message ID | 20211115135032.129227-3-julien.massot@iot.bzh (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Initial Renesas R-Car remoteproc support | expand |
Hi Julien, On Mon, Nov 15, 2021 at 2:50 PM Julien Massot <julien.massot@iot.bzh> wrote: > r8a77951 as some other members of rcar gen3 soc series > has a Cortex R7 processor. > This processor shares the same mapped devices and memory mapping. > > Choose 0x40040000 area to store the Cortex-R7 firmware. > > Signed-off-by: Julien Massot <julien.massot@iot.bzh> Thanks for your patch! > No change since RFC, Geert most likely it sounds better > to drop this patch in v2 ? Indeed, cfr. my comments below. > --- a/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts > +++ b/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts > @@ -34,6 +34,16 @@ memory@700000000 { > device_type = "memory"; > reg = <0x7 0x00000000 0x0 0x40000000>; > }; > + > + reserved-memory { > + #address-cells = <2>; > + #size-cells = <2>; > + > + cr7_ram: cr7_ram@40040000 { > + no-map; > + reg = <0x0 0x40040000 0x0 0x1fc0000>; > + }; > + }; Tgis depends on a specific configuration, and is thus not suitable for upstream. > }; > > &du { > @@ -48,3 +58,8 @@ &du { > clock-names = "du.0", "du.1", "du.2", "du.3", > "dclkin.0", "dclkin.1", "dclkin.2", "dclkin.3"; > }; > + > +&cr7_rproc { > + memory-region = <&cr7_ram>; > + status = "okay"; > +}; > diff --git a/arch/arm64/boot/dts/renesas/r8a77951.dtsi b/arch/arm64/boot/dts/renesas/r8a77951.dtsi > index 1768a3e6bb8d..3ee247fc5aec 100644 > --- a/arch/arm64/boot/dts/renesas/r8a77951.dtsi > +++ b/arch/arm64/boot/dts/renesas/r8a77951.dtsi > @@ -366,6 +366,13 @@ soc: soc { > #size-cells = <2>; > ranges; > > + cr7_rproc: cr7 { > + compatible = "renesas,rcar-cr7"; > + power-domains = <&sysc R8A7795_PD_CR7>; > + resets = <&cpg 222>; > + status = "disabled"; > + }; > + This part is generic, but I think the cr7 node should be moved outside the soc node (like the PMUs and the ARMv8 timer), as it does not have a unit address. > rwdt: watchdog@e6020000 { > compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; > reg = <0 0xe6020000 0 0x0c>; Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org 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
diff --git a/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts b/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts index 06d4e948eb0f..703d0d33efe6 100644 --- a/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts +++ b/arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts @@ -34,6 +34,16 @@ memory@700000000 { device_type = "memory"; reg = <0x7 0x00000000 0x0 0x40000000>; }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + + cr7_ram: cr7_ram@40040000 { + no-map; + reg = <0x0 0x40040000 0x0 0x1fc0000>; + }; + }; }; &du { @@ -48,3 +58,8 @@ &du { clock-names = "du.0", "du.1", "du.2", "du.3", "dclkin.0", "dclkin.1", "dclkin.2", "dclkin.3"; }; + +&cr7_rproc { + memory-region = <&cr7_ram>; + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/renesas/r8a77951.dtsi b/arch/arm64/boot/dts/renesas/r8a77951.dtsi index 1768a3e6bb8d..3ee247fc5aec 100644 --- a/arch/arm64/boot/dts/renesas/r8a77951.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a77951.dtsi @@ -366,6 +366,13 @@ soc: soc { #size-cells = <2>; ranges; + cr7_rproc: cr7 { + compatible = "renesas,rcar-cr7"; + power-domains = <&sysc R8A7795_PD_CR7>; + resets = <&cpg 222>; + status = "disabled"; + }; + rwdt: watchdog@e6020000 { compatible = "renesas,r8a7795-wdt", "renesas,rcar-gen3-wdt"; reg = <0 0xe6020000 0 0x0c>;
r8a77951 as some other members of rcar gen3 soc series has a Cortex R7 processor. This processor shares the same mapped devices and memory mapping. Choose 0x40040000 area to store the Cortex-R7 firmware. Signed-off-by: Julien Massot <julien.massot@iot.bzh> --- No change since RFC, Geert most likely it sounds better to drop this patch in v2 ? --- arch/arm64/boot/dts/renesas/r8a77951-ulcb.dts | 15 +++++++++++++++ arch/arm64/boot/dts/renesas/r8a77951.dtsi | 7 +++++++ 2 files changed, 22 insertions(+)