linux-kernel - Re: [RESEND v4 1/6] remoteproc: dt: Provide bindings for ST's Remote Processor Controller driver

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Message-ID: <20151125000727.GA26709@rob-hp-laptop>
Date:	Tue, 24 Nov 2015 18:07:27 -0600
From:	Rob Herring <robh@...nel.org>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	kernel@...inux.com, maxime.coquelin@...com, ohad@...ery.com,
	devicetree@...r.kernel.org, Nathan_Lynch@...tor.com,
	f.fainelli@...il.com, ludovic.barre@...com, s-anna@...com
Subject: Re: [RESEND v4 1/6] remoteproc: dt: Provide bindings for ST's Remote
 Processor Controller driver

On Tue, Nov 24, 2015 at 01:14:17PM +0000, Lee Jones wrote:
> Signed-off-by: Ludovic Barre <ludovic.barre@...com>
> Signed-off-by: Lee Jones <lee.jones@...aro.org>
> ---
>  .../devicetree/bindings/remoteproc/st-rproc.txt    | 41 ++++++++++++++++++++++

Acked-by: Rob Herring <robh@...nel.org>

>  1 file changed, 41 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/remoteproc/st-rproc.txt
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/st-rproc.txt b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt
> new file mode 100644
> index 0000000..1031bcd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/remoteproc/st-rproc.txt
> @@ -0,0 +1,41 @@
> +STMicroelectronics Co-Processor Bindings
> +----------------------------------------
> +
> +This binding provides support for adjunct processors found on ST SoCs.
> +
> +Co-processors can be controlled from the bootloader or the primary OS. If
> +the bootloader starts a co-processor, the primary OS must detect its state
> +and act accordingly.
> +
> +Required properties:
> +- compatible		Should be one of:
> +				"st,st231-rproc"
> +				"st,st40-rproc"
> +- memory-region		Reserved memory (See: ../reserved-memory/reserved-memory.txt)
> +- resets		Reset lines (See: ../reset/reset.txt)
> +- reset-names		Must be "sw_reset" and "pwr_reset"
> +- clocks		Clock for co-processor (See: ../clock/clock-bindings.txt)
> +- clock-frequency	Clock frequency to set co-processor at if the bootloader
> +			hasn't already done so
> +- st,syscfg		System configuration register which holds the boot vector
> +			for the co-processor
> +				1st cell: Phandle to syscon block
> +				2nd cell: Boot vector register offset
> +
> +Example:
> +
> +	audio_reserved: rproc@...00000 {
> +		compatible = "shared-dma-pool";
> +		reg = <0x42000000 0x01000000>;
> +		no-map;
> +	};
> +
> +	st231-audio {
> +		compatible	= "st,st231-rproc";
> +		memory-region	= <&audio_reserved>;
> +		resets		= <&softreset STIH407_ST231_AUD_SOFTRESET>;
> +		reset-names	= "sw_reset";
> +		clocks		= <&clk_s_c0_flexgen CLK_ST231_AUD_0>;
> +		clock-frequency	= <600000000>;
> +		st,syscfg	= <&syscfg_core 0x228>;
> +	};
> -- 
> 1.9.1
> 
> --
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