Re: [PATCH v3 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP

[Iuliana Prodan]

Hi Alexander,

On 10/11/2023 8:37 AM, Alexander Stein wrote:
> Hi Iuliana,
>
> Am Dienstag, 10. Oktober 2023, 11:09:29 CEST schrieb Iuliana Prodan (OSS):
> > From: Iuliana Prodan <iuliana.prodan@xxxxxxx>
> >
> > Add the reserve-memory nodes used by DSP when the rpmsg
> > feature is enabled.
> >
> > Signed-off-by: Iuliana Prodan <iuliana.prodan@xxxxxxx>
> > ---
> >   arch/arm64/boot/dts/freescale/imx8mp.dtsi | 16 ++++++++++++++++
> >   1 file changed, 16 insertions(+)
> >
> > 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 = <0 0x92400000 0 0x2000000>;
> >   			no-map;
> >   		};
> > +
> > +		dsp_vdev0vring0: vdev0vring0@942f0000 {
> > +			reg = <0 0x942f0000 0 0x8000>;
> > +			no-map;
> > +		};
> > +
> > +		dsp_vdev0vring1: vdev0vring1@942f8000 {
> > +			reg = <0 0x942f8000 0 0x8000>;
> > +			no-map;
> > +		};
> > +
> > +		dsp_vdev0buffer: vdev0buffer@94300000 {
> > +			compatible = "shared-dma-pool";
> > +			reg = <0 0x94300000 0 0x100000>;
> > +			no-map;
> > +		};
> Please configure these reserved memories on board level. Not every i.MX8MP
> based board uses this DSP or has these memory addresses available.

Will it be ok in imx8mp-evk.dts?

Thanks,
Iulia

> Best regards,
> Alexander
>
> >   	};
> >
> >   	pmu {