From c3a45b70038505955e02ae41e1c725a38620b2a0 Mon Sep 17 00:00:00 2001
From: Mahima Bhattaram <mbhattar@qti.qualcomm.com>
Date: Mon, 22 Jun 2026 16:38:12 +0530
Subject: [PATCH] Reapply "arm64: dts: qcom: agatti: enable FastRPC on the
 ADSP"

This reverts commit b2ea57bfc5f97af1b5f7b0d750ae315c60921580.

RB1 board able to boot up with this change https://lore.kernel.org/all/20260609025938.457-1-jianping.li@oss.qualcomm.com/

Signed-off-by: Mahima Bhattaram <mbhattar@qti.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/agatti.dtsi | 41 ++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/agatti.dtsi b/arch/arm64/boot/dts/qcom/agatti.dtsi
index 13f0ebb5a3ee..8690375f9c71 100644
--- a/arch/arm64/boot/dts/qcom/agatti.dtsi
+++ b/arch/arm64/boot/dts/qcom/agatti.dtsi
@@ -2484,6 +2484,47 @@
 						};
 					};
 				};
+
+				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 0x1c3 0x0>;
+					};
+
+					compute-cb@4 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <4>;
+						iommus = <&apps_smmu 0x1c4 0x0>;
+					};
+
+					compute-cb@5 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <5>;
+						iommus = <&apps_smmu 0x1c5 0x0>;
+					};
+
+					compute-cb@6 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <6>;
+						iommus = <&apps_smmu 0x1c6 0x0>;
+					};
+
+					compute-cb@7 {
+						compatible = "qcom,fastrpc-compute-cb";
+						reg = <7>;
+						iommus = <&apps_smmu 0x1c7 0x0>;
+					};
+				};
 			};
 		};