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SubjectRe: [PATCH v3 2/2] arm64: dts: imx8mp: add reserve-memory nodes for DSP
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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@nxp.com>
>>
>> Add the reserve-memory nodes used by DSP when the rpmsg
>> feature is enabled.
>>
>> Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com>
>> ---
>> 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 {
>

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