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Message-ID: <20250131093531.1054924-1-w.egorov@phytec.de>
Date: Fri, 31 Jan 2025 10:35:30 +0100
From: Wadim Egorov <w.egorov@...tec.de>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <kees@...nel.org>,
	<tony.luck@...el.com>, <gpiccoli@...lia.com>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <upstream@...ts.phytec.de>
Subject: [PATCH 1/2] arm64: dts: ti: k3-am64-phycore-som: Reserve RTOS IPC memory

Reserve a portion of memory for inter-processor communication between
all remote processors running RTOS or baremetal firmware.

Signed-off-by: Wadim Egorov <w.egorov@...tec.de>
---
 arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
index 99a6fdfaa7fb..e8d1b88651e7 100644
--- a/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am64-phycore-som.dtsi
@@ -99,6 +99,12 @@ mcu_m4fss_memory_region: m4f-memory@...00000 {
 			reg = <0x00 0xa4100000 0x00 0xf00000>;
 			no-map;
 		};
+
+		rtos_ipc_memory_region: ipc-memories@...00000 {
+			reg = <0x00 0xa5000000 0x00 0x00800000>;
+			alignment = <0x1000>;
+			no-map;
+		};
 	};
 
 	leds {
-- 
2.34.1


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