linux-kernel - [PATCH v5 4/4] arm64: dts: ti: k3-am62a7-sk: Enable ipc with Remoteproc nodes

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Message-ID: <20240822092955.22037-5-hnagalla@ti.com>
Date: Thu, 22 Aug 2024 04:29:55 -0500
From: Hari Nagalla <hnagalla@...com>
To: <vigneshr@...com>, <kristo@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <nm@...com>, <bb@...com>, <afd@...com>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>
Subject: [PATCH v5 4/4] arm64: dts: ti: k3-am62a7-sk: Enable ipc with Remoteproc nodes

From: Devarsh Thakkar <devarsht@...com>

Reserve memory for Remoteproc IPC and bind the mailbox assignments
for each Remoteproc. Two memory regions are reserved for each
remote processor. The first region of 1MB of memory is used for Vring
shared buffers and the second region is used as external memory to the
remote processor, resource table and as tracebuffer.

Signed-off-by: Devarsh Thakkar <devarsht@...com>
Signed-off-by: Hari Nagalla <hnagalla@...com>
---
 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 71 +++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 67faf46d7a35..c9c504626b14 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -61,11 +61,41 @@ secure_ddr: optee@...00000 {
 			no-map;
 		};
 
+		wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9c800000 0x00 0x100000>;
+			no-map;
+		};
+
 		wkup_r5fss0_core0_memory_region: r5f-dma-memory@...00000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9c900000 0x00 0x01e00000>;
 			no-map;
 		};
+
+		mcu_r5fss0_core0_dma_memory_region: r5f-dma-memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9b800000 0x00 0x100000>;
+			no-map;
+		};
+
+		mcu_r5fss0_core0_memory_region: r5f-dma-memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9b900000 0x00 0x0f00000>;
+			no-map;
+		};
+
+		c7x_0_dma_memory_region: c7x-dma-memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x99800000 0x00 0x100000>;
+			no-map;
+		};
+
+		c7x_0_memory_region: c7x-memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x99900000 0x00 0x01f00000>;
+			no-map;
+		};
 	};
 
 	vmain_pd: regulator-0 {
@@ -728,3 +758,44 @@ dpi1_out: endpoint {
 		};
 	};
 };
+
+&mailbox0_cluster0 {
+	mbox_r5_0: mbox-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster1 {
+	mbox_c7x_0: mbox-c7x-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&mailbox0_cluster2 {
+	mbox_mcu_r5_0: mbox-mcu-r5-0 {
+		ti,mbox-rx = <0 0 0>;
+		ti,mbox-tx = <1 0 0>;
+	};
+};
+
+&c7x_0 {
+	mboxes = <&mailbox0_cluster1 &mbox_c7x_0>;
+	memory-region = <&c7x_0_dma_memory_region>,
+			<&c7x_0_memory_region>;
+	status = "okay";
+};
+
+&wkup_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster0 &mbox_r5_0>;
+	memory-region = <&wkup_r5fss0_core0_dma_memory_region>,
+		<&wkup_r5fss0_core0_memory_region>;
+};
+
+&mcu_r5fss0_core0 {
+	mboxes = <&mailbox0_cluster2 &mbox_mcu_r5_0>;
+	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
+			<&mcu_r5fss0_core0_memory_region>;
+	status = "okay";
+};
-- 
2.34.1