On Fri, Oct 16, 2015 at 2:49 PM, Geert Uytterhoeven
<[email protected]> wrote:
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/renesas,cpg-mssr.txt
> @@ -0,0 +1,71 @@
> +* Renesas Clock Pulse Generator / Module Standby and Software Reset
> +
> +On Renesas ARM SoCs (SH/R-Mobile, R-Car, RZ), the CPG (Clock Pulse Generator)
> +and MSSR (Module Standby and Software Reset) blocks are intimately connected,
> +and share the same register block.
> +
> +They provide the following functionalities:
> + - The CPG block generates various core clocks,
> + - The MSSR block provides two functions:
> + 1. Module Standby, providing a Clock Domain to control the clock supply
> + to individual SoC devices,
> + 2. Reset Control, to perform a software reset of individual SoC
> devices.
> +
> +Required Properties:
> + - compatible: Must be one of:
> + - "renesas,r8a7791-cpg-mssr" for the r8a7791 SoC
I'll drop the reference to "r8a7791", as we won't convert r8a7791 (yet).
> + - "renesas,r8a7795-cpg-mssr" for the r8a7795 SoC
> +
> + - reg: Base address and length of the memory resource used by the CPG/MSSR
> + block
> +
> + - clocks: References to external parent clocks, one entry for each entry in
> + clock-names
> + - clock-names: List of external parent clock names. Valid names are:
> + - "extal" (r8a7791, r8a7795)
> + - "extalr" (r8a7795)
> + - "usb_extal" (r8a7791)
Likewise.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
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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