On Tue, Apr 24, 2018 at 10:26:37AM +0200, Geert Uytterhoeven wrote:
> Hi Shimoda-san,
>
> On Fri, Apr 20, 2018 at 2:28 PM, Yoshihiro Shimoda
> <yoshihiro.shimoda.uh@xxxxxxxxxxx> wrote:
> > This patch adds basic support for the Renesas R-Car E3 (R8A77990) SoC:
> > - PSCI
> > - CPU (single)
> > - Cache controller
> > - Main clocks and controller
> > - Interrupt controller
> > - Timer
> > - PMU
> > - Reset controller
> > - Product register
> > - System controller
> > - UART for console
> >
> > Inspried by a patch by Takeshi Kihara in the BSP.
> >
> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
>
> Thanks for you patch!
Thanks for your review.
As I've already applied this patch I'd like to ask Shimoda-san
to send incremental patches to address the issues you raise below.
> > --- /dev/null
> > +++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
> > @@ -0,0 +1,127 @@
> > +/* SPDX-License-Identifier: GPL-2.0 */
> > +/*
> > + * Device Tree Source for the r8a77990 SoC
> > + *
> > + * Copyright (C) 2018 Renesas Electronics Corp.
> > + */
> > +
> > +#include <dt-bindings/clock/renesas-cpg-mssr.h>
> > +#include <dt-bindings/interrupt-controller/arm-gic.h>
> > +
> > +/ {
> > + compatible = "renesas,r8a77990";
> > + #address-cells = <2>;
> > + #size-cells = <2>;
> > +
> > + cpus {
>
> > + L2_CA53: cache-controller@0 {
> > + compatible = "cache";
> > + reg = <0>;
>
> Please no unit-addresses and reg properties for cache controllers.
>
> > + power-domains = <&sysc 21>;
> > + cache-unified;
> > + cache-level = <2>;
> > + };
> > + };
>
> > + psci {
> > + compatible = "arm,psci-0.2";
>
> "arm,psci-1.0", "arm,psci-0.2"?
>
> > + method = "smc";
> > + };
> > +
> > + soc: soc {
>
> > + rst: reset-controller@e6160000 {
> > + compatible = "renesas,r8a77990-rst";
> > + reg = <0 0xe6160000 0 0x0200>;
> > + };
> > +
> > + sysc: system-controller@e6180000 {
> > + compatible = "renesas,r8a77990-sysc";
> > + reg = <0 0xe6180000 0 0x0400>;
> > + #power-domain-cells = <1>;
> > + };
> > +
> > + scif2: serial@e6e88000 {
> > + compatible = "renesas,scif-r8a77990",
> > + "renesas,rcar-gen3-scif", "renesas,scif";
> > + reg = <0 0xe6e88000 0 64>;
> > + interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&cpg CPG_MOD 310>;
> > + clock-names = "fck";
>
> I assume you plan to add the other clocks later? That's fine for me.
>
> > + power-domains = <&sysc 32>;
> > + resets = <&cpg 310>;
> > + status = "disabled";
> > + };
>
> 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
>
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