Re: [PATCH 1/3] ARM: dts: da850: Add the cppi41 dma node

[Sergei Shtylyov <sergei.shtylyov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>]

Hello.

On 01/09/2017 07:24 PM, Alexandre Bailon wrote:

> This adds the device tree node for the cppi41 dma
> used by the usb otg controller present in the da850 family of SoC's.
>
> Signed-off-by: Alexandre Bailon <abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
> ---
>  arch/arm/boot/dts/da850.dtsi | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
> index 104155d..d6b406a 100644
> --- a/arch/arm/boot/dts/da850.dtsi
> +++ b/arch/arm/boot/dts/da850.dtsi
> @@ -403,6 +403,22 @@
>  			phy-names = "usb-phy";
>  			status = "disabled";
>  		};
> +		cppi41dma: dma-controller@201000 {
> +			compatible = "ti,da8xx-cppi41";
> +			reg =  <0x200000 0x1000

    I don't remember any DA8xx glue regs having to do with the CPPI 4.1...

> +				0x201000 0x1000
> +				0x202000 0x1000
> +				0x204000 0x4000>;
> +			reg-names = "glue", "controller",
> +				    "scheduler", "queuemgr";
> +			interrupts = <58>;
> +			interrupt-names = "glue";
> +			#dma-cells = <2>;
> +			#dma-channels = <4>;
> +			#dma-requests = <256>;
> +			status = "disabled";

    Why disabled? It doesn't use any external pins...

[...]

MBR, Sergei

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