linux-kernel - Re: [PATCH] arm64: dts: ti: k3-am62-main: Enable crypto accelerator

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Date:   Thu, 23 Jun 2022 13:21:28 -0500
From:   Andrew Davis <afd@...com>
To:     Jayesh Choudhary <j-choudhary@...com>, <devicetree@...r.kernel.org>
CC:     <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm64: dts: ti: k3-am62-main: Enable crypto accelerator

On 6/23/22 4:59 AM, Jayesh Choudhary wrote:
> Add the node for sa3ul crypto accelerator.
> 
> Signed-off-by: Jayesh Choudhary <j-choudhary@...com>
> ---
> On local testing, crypto self-tests and tcrypt tests were passing
> for SHA256, SHA512, ECB-AES and CBC-AES algorithms.
> RNG node has not been added due to the indirect access of the
> hardware random number generator from OP-TEE.
> 
>   arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 13 +++++++++++++
>   1 file changed, 13 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> index df3b9883e887..30bd22ff2fc9 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> @@ -165,6 +165,19 @@
>   		};
>   	};
>   
> +	crypto: crypto@...00000 {
> +		compatible = "ti,am62-sa3ul";
> +		reg = <0x00 0x40900000 0x00 0x1200>;
> +		power-domains = <&k3_pds 70 TI_SCI_PD_EXCLUSIVE>;


Change to TI_SCI_PD_SHARED as OP-TEE uses this too, otherwise looks good,

Acked-by: Andrew Davis <afd@...com>


> +		#address-cells = <2>;
> +		#size-cells = <2>;
> +		ranges = <0x00 0x40900000 0x00 0x40900000 0x00 0x30000>;
> +
> +		dmas = <&main_pktdma 0xf501 0>, <&main_pktdma 0x7506 0>,
> +				<&main_pktdma 0x7507 0>;
> +		dma-names = "tx", "rx1", "rx2";
> +	};
> +
>   	main_pmx0: pinctrl@...00 {
>   		compatible = "pinctrl-single";
>   		reg = <0x00 0xf4000 0x00 0x2ac>;