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

[Iuliana Prodan (OSS)]

From: Iuliana Prodan <iuliana.pro...@nxp.com>

Add the reserve-memory nodes used by DSP when the rpmsg
feature is enabled.
These can be later used in a dsp node, like:
dsp: dsp@3b6e8000 {
        compatible = "fsl,imx8mp-dsp";
        reg = <0x3b6e8000 0x88000>;
        mbox-names = "tx0", "rx0", "rxdb0";
        mboxes = <&mu2 2 0>, <&mu2 2 1>,
                <&mu2 3 0>, <&mu2 3 1>;
        memory-region = <&dsp_vdev0buffer>, <&dsp_vdev0vring0>,
                <&dsp_vdev0vring1>, <&dsp_reserved>;
        status = "okay";
};

Signed-off-by: Iuliana Prodan <iuliana.pro...@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi 
b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index cc406bb338fe..eedc1921af62 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -210,6 +210,18 @@
                dsp_reserved: dsp@92400000 {
                        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;
                };
        };
 
-- 
2.17.1