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From:   Alexander Stein <alexander.stein@ew.tq-group.com>
To:     Mathieu Poirier <mathieu.poirier@linaro.org>, robh+dt@kernel.org,
        krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
        Shawn Guo <shawnguo@kernel.org>,
        Bjorn Andersson <andersson@kernel.org>,
        Sascha Hauer <s.hauer@pengutronix.de>,
        "S.J. Wang" <shengjiu.wang@nxp.com>,
        Fabio Estevam <festevam@gmail.com>, devicetree@vger.kernel.org,
        Daniel Baluta <daniel.baluta@nxp.com>,
        Mpuaudiosw <Mpuaudiosw@nxp.com>,
        Iuliana Prodan <iuliana.prodan@nxp.com>,
        linux-arm-kernel@lists.infradead.org
Cc:     linux-imx <linux-imx@nxp.com>, linux-remoteproc@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Pengutronix Kernel Team <kernel@pengutronix.de>,
        LnxRevLi <LnxRevLi@nxp.com>,
        "Iuliana Prodan (OSS)" <iuliana.prodan@oss.nxp.com>
Subject: Re: [PATCH v3 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP
Date:   Wed, 11 Oct 2023 07:37:10 +0200
Message-ID: <2301291.ElGaqSPkdT@steina-w>
Organization: TQ-Systems GmbH
In-Reply-To: <20231010090929.4371-3-iuliana.prodan@oss.nxp.com>
References: <20231010090929.4371-1-iuliana.prodan@oss.nxp.com> <20231010090929.4371-3-iuliana.prodan@oss.nxp.com>
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Hi Iuliana,

Am Dienstag, 10. Oktober 2023, 11:09:29 CEST schrieb Iuliana Prodan (OSS):
> From: Iuliana Prodan <iuliana.prodan@nxp.com>
>=20
> Add the reserve-memory nodes used by DSP when the rpmsg
> feature is enabled.
>=20
> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>=20
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index
> cc406bb338fe..22815b3ea890 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -211,6 +211,22 @@
>  			reg =3D <0 0x92400000 0 0x2000000>;
>  			no-map;
>  		};
> +
> +		dsp_vdev0vring0: vdev0vring0@942f0000 {
> +			reg =3D <0 0x942f0000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		dsp_vdev0vring1: vdev0vring1@942f8000 {
> +			reg =3D <0 0x942f8000 0 0x8000>;
> +			no-map;
> +		};
> +
> +		dsp_vdev0buffer: vdev0buffer@94300000 {
> +			compatible =3D "shared-dma-pool";
> +			reg =3D <0 0x94300000 0 0x100000>;
> +			no-map;
> +		};

Please configure these reserved memories on board level. Not every i.MX8MP=
=20
based board uses this DSP or has these memory addresses available.

Best regards,
Alexander

>  	};
>=20
>  	pmu {


=2D-=20
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