Hi Krzysztof,
On Mon, Oct 21, 2019 at 6:15 PM Krzysztof Kozlowski <krzk@xxxxxxxxxx> wrote:
> The Renesas SRAM bindings list only compatible so integrate them into
> generic SRAM bindings schema.
>
> Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Thanks for your patch, whcih is now commit 0759b09eadd0d9a1 ("dt-bindings:
sram: Merge Renesas SRAM bindings into generic") in Rob's for-next branch.
> --- a/Documentation/devicetree/bindings/sram/renesas,smp-sram.txt
> +++ /dev/null
> @@ -1,27 +0,0 @@
> -* Renesas SMP SRAM
> -
> -Renesas R-Car Gen2 and RZ/G1 SoCs need a small piece of SRAM for the jump stub
> -for secondary CPU bringup and CPU hotplug.
> -This memory is reserved by adding a child node to a "mmio-sram" node, cfr.
> -Documentation/devicetree/bindings/sram/sram.txt.
> -
> -Required child node properties:
> - - compatible: Must be "renesas,smp-sram",
> - - reg: Address and length of the reserved SRAM.
> - The full physical (bus) address must be aligned to a 256 KiB boundary.
> -
> -
> -Example:
> -
> - icram1: sram@e63c0000 {
> - compatible = "mmio-sram";
> - reg = <0 0xe63c0000 0 0x1000>;
> - #address-cells = <1>;
> - #size-cells = <1>;
> - ranges = <0 0 0xe63c0000 0x1000>;
> -
> - smp-sram@0 {
> - compatible = "renesas,smp-sram";
> - reg = <0 0x10>;
> - };
> --- a/Documentation/devicetree/bindings/sram/sram.yaml
> +++ b/Documentation/devicetree/bindings/sram/sram.yaml
> @@ -186,3 +187,17 @@ examples:
> reg = <0x1ff80 0x8>;
> };
> };
> +
> + - |
> + sram@e63c0000 {
> + compatible = "mmio-sram";
> + reg = <0xe63c0000 0x1000>;
Is there any specific reason you converted the example from 64-bit to
32-bit addressing?
All Renesas SoCs using this have #address-cells and #size-cells = <2>.
Thanks!
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0xe63c0000 0x1000>;
> +
> + smp-sram@0 {
> + compatible = "renesas,smp-sram";
> + reg = <0 0x10>;
> + };
> + };
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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