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.pro...@nxp.com>

Add the reserve-memory nodes used by DSP when the rpmsg
feature is enabled.

Signed-off-by: Iuliana Prodan <iuliana.pro...@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 {