[PATCH] arm64: dts: qcom: eliza: Add FastRPC support

From: Abel Vesa

Date: Tue Jul 21 2026 - 05:31:50 EST


Describe the glink-edge for CDSP and the FastRPC subnodes for both ADSP
and CDSP.

Signed-off-by: Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>
---
FastRPC nodes were not part of the remoteprocs patchsets because they
weren't tested in time in order to be sent along.
---
arch/arm64/boot/dts/qcom/eliza.dtsi | 158 ++++++++++++++++++++++++++++++++++++
1 file changed, 158 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/eliza.dtsi b/arch/arm64/boot/dts/qcom/eliza.dtsi
index ef19d667c7c1..4576b00c2e5d 100644
--- a/arch/arm64/boot/dts/qcom/eliza.dtsi
+++ b/arch/arm64/boot/dts/qcom/eliza.dtsi
@@ -2038,6 +2038,65 @@ IPCC_MPROC_SIGNAL_GLINK_QMP
label = "lpass";
qcom,remote-pid = <2>;

+ fastrpc {
+ compatible = "qcom,fastrpc";
+
+ qcom,glink-channels = "fastrpcglink-apps-dsp";
+
+ label = "adsp";
+
+ qcom,non-secure-domain;
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compute-cb@3 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <3>;
+
+ iommus = <&apps_smmu 0x1003 0x80>,
+ <&apps_smmu 0x1043 0x20>;
+ dma-coherent;
+ };
+
+ compute-cb@4 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <4>;
+
+ iommus = <&apps_smmu 0x1004 0x80>,
+ <&apps_smmu 0x1044 0x20>;
+ dma-coherent;
+ };
+
+ compute-cb@5 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <5>;
+
+ iommus = <&apps_smmu 0x1005 0x80>,
+ <&apps_smmu 0x1045 0x20>;
+ dma-coherent;
+ };
+
+ compute-cb@6 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <6>;
+
+ iommus = <&apps_smmu 0x1006 0x80>,
+ <&apps_smmu 0x1046 0x20>;
+ dma-coherent;
+ };
+
+ compute-cb@7 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <7>;
+
+ iommus = <&apps_smmu 0x1007 0x40>,
+ <&apps_smmu 0x1067 0x0>,
+ <&apps_smmu 0x1087 0x0>;
+ dma-coherent;
+ };
+ };
+
gpr {
compatible = "qcom,gpr";
qcom,glink-channels = "adsp_apps";
@@ -3841,6 +3900,105 @@ remoteproc_cdsp: remoteproc@32300000 {
qcom,smem-state-names = "stop";

status = "disabled";
+
+ glink-edge {
+ interrupts-extended = <&ipcc IPCC_CLIENT_CDSP
+ IPCC_MPROC_SIGNAL_GLINK_QMP
+ IRQ_TYPE_EDGE_RISING>;
+ mboxes = <&ipcc IPCC_CLIENT_CDSP
+ IPCC_MPROC_SIGNAL_GLINK_QMP>;
+
+ label = "cdsp";
+ qcom,remote-pid = <5>;
+
+ fastrpc {
+ compatible = "qcom,fastrpc";
+ qcom,glink-channels = "fastrpcglink-apps-dsp";
+ label = "cdsp";
+ qcom,non-secure-domain;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compute-cb@1 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <1>;
+ iommus = <&apps_smmu 0x0c01 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@2 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <2>;
+ iommus = <&apps_smmu 0x0c02 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@3 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <3>;
+ iommus = <&apps_smmu 0x0c03 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@4 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <4>;
+ iommus = <&apps_smmu 0x0c04 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@5 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <5>;
+ iommus = <&apps_smmu 0x0c05 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@6 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <6>;
+ iommus = <&apps_smmu 0x0c06 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@7 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <7>;
+ iommus = <&apps_smmu 0x0c07 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@8 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <8>;
+ iommus = <&apps_smmu 0x0c08 0x0>;
+ dma-coherent;
+ };
+
+ /* note: secure cb9 in downstream */
+
+ compute-cb@12 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <12>;
+ iommus = <&apps_smmu 0x0c0c 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@13 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <13>;
+ iommus = <&apps_smmu 0x0c0d 0x0>;
+ dma-coherent;
+ };
+
+ compute-cb@14 {
+ compatible = "qcom,fastrpc-compute-cb";
+ reg = <14>;
+ iommus = <&apps_smmu 0x0c0e 0x0>;
+ dma-coherent;
+ };
+ };
+ };
};
};


---
base-commit: 03cfefef0119410fc464d0d56e83626cb570b7a8
change-id: 20260721-dts-qcom-eliza-add-fastrpc-c0868aeac9cf
prerequisite-change-id: 20260714-dts-qcom-eliza-add-cdsp-0288fd79c8c2:v2
prerequisite-patch-id: acb10214e50e8fbd14ca66cc162c4e56fb5edc72
prerequisite-patch-id: bdaa37cca19be7fd8d6967689b7599aa2d5a1892
prerequisite-patch-id: 6c9701599710278e20f3077f560f20e83ead9b1c
prerequisite-change-id: 20260701-dts-qcom-eliza-add-gpr-f7714d399e33:v2
prerequisite-patch-id: 84282f8a368672c3f0f8944c442c71713cfd7390

Best regards,
--
Abel Vesa <abel.vesa@xxxxxxxxxxxxxxxx>