From 9275899572f107603922effd148c1bdcb1c8cb6e Mon Sep 17 00:00:00 2001
From: Gautham Srinivasan <gauthams@nvidia.com>
Date: Thu, 10 Aug 2023 01:10:41 +0000
Subject: [PATCH] nv-soc: add infrastructure for aon_echo

Add aon_echo node which is disabled by default. This
can be enabled with the feature in the SPE firmware.

Bug 4296173

Change-Id: If29fbcd01b978dec2dcaa3631ee0c14e0c4ab038
Signed-off-by: Gautham Srinivasan <gauthams@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/t23x-public-dts/+/2954310
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: Brad Griffis <bgriffis@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
---
 nv-soc/tegra234-soc-overlay.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/nv-soc/tegra234-soc-overlay.dtsi b/nv-soc/tegra234-soc-overlay.dtsi
index 3fc2973..2c53daf 100644
--- a/nv-soc/tegra234-soc-overlay.dtsi
+++ b/nv-soc/tegra234-soc-overlay.dtsi
@@ -27,6 +27,12 @@
 	};
 
 	bus@0 {
+		aon_echo {
+			compatible = "nvidia,tegra186-aon-ivc-echo";
+			mboxes = <&aon TEGRA_HSP_MBOX_TYPE_SM>;
+			status = "disabled";
+		};
+
 		actmon@d230000 {
 			compatible = "nvidia,tegra234-cactmon-mc-all";
 			reg = <0x0 0xd230000 0x0 0x1000>;