Received-SPF: pass (google.com: domain of linux-kernel+bounces-205670-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1;
From: Beleswar Padhi <b-padhi@ti.com>
To: <nm@ti.com>, <vigneshr@ti.com>
CC: <kristo@kernel.org>, <robh@kernel.org>, <krzk+dt@kernel.org>,
        <conor+dt@kernel.org>, <linux-arm-kernel@lists.infradead.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <vaishnav.a@ti.com>, <j-choudhary@ti.com>, <u-kumar1@ti.com>
Subject: [PATCH 2/3] arm64: dts: ti: k3-j722s-evm: Enable Mailbox clusters
Date: Fri, 7 Jun 2024 14:34:32 +0530
Message-ID: <20240607090433.488454-3-b-padhi@ti.com>
In-Reply-To: <20240607090433.488454-1-b-padhi@ti.com>
References: <20240607090433.488454-1-b-padhi@ti.com>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain

The K3 J722S SoCs have one single-core Arm Cortex-R5F processor in each
of the WAKEUP, MCU and MAIN voltage domain, and two C71x DSP subsystems
in MAIN voltage domain.

The Inter-Processor communication between the main A72 cores and these
R5F and DSP remote cores is achieved through shared memory and
Mailboxes. Thus, enable the Mailbox clusters required for communication.

Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
---
 arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 37 +++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index bf3c246d13d1f..a51925deb43b8 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -384,3 +384,40 @@ &sdhci1 {
 	status = "okay";
 	bootph-all;
 };
+
+&mailbox0_cluster0 {
+	status = "okay";
+	mbox_r5_0: mbox-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	status = "okay";
+	mbox_mcu_r5_0: mbox-mcu-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster2 {
+	status = "okay";
+	mbox_c7x_0: mbox-c7x-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster3 {
+	status = "okay";
+	mbox_main_r5_0: mbox-main-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+
+	mbox_c7x_1: mbox-c7x-1 {
+		ti,mbox-rx = <2 0 0>;
+		ti,mbox-tx = <3 0 0>;
+	};
+};
-- 
2.34.1