[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 at nxp.com>
>>
>> Add the reserve-memory nodes used by DSP when the rpmsg
>> feature is enabled.
>>
>> Signed-off-by: Iuliana Prodan <iuliana.prodan at 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 at 942f0000 {
>> +			reg = <0 0x942f0000 0 0x8000>;
>> +			no-map;
>> +		};
>> +
>> +		dsp_vdev0vring1: vdev0vring1 at 942f8000 {
>> +			reg = <0 0x942f8000 0 0x8000>;
>> +			no-map;
>> +		};
>> +
>> +		dsp_vdev0buffer: vdev0buffer at 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 {
>