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Message-ID: <20250908090746.862407-8-danishanwar@ti.com>
Date: Mon, 8 Sep 2025 14:37:46 +0530
From: MD Danish Anwar <danishanwar@...com>
To: "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet
	<edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni
	<pabeni@...hat.com>, Simon Horman <horms@...nel.org>,
        Jonathan Corbet
	<corbet@....net>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra
	<vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Andrew Lunn <andrew+netdev@...n.ch>,
        MD Danish Anwar
	<danishanwar@...com>,
        Mengyuan Lou <mengyuanlou@...-swift.com>,
        Luo Jie
	<quic_luoj@...cinc.com>, Fan Gong <gongfan1@...wei.com>,
        Lei Wei
	<quic_leiwei@...cinc.com>,
        Michael Ellerman <mpe@...erman.id.au>, Lee Trager
	<lee@...ger.us>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Parthiban Veerasooran
	<Parthiban.Veerasooran@...rochip.com>,
        Geert Uytterhoeven
	<geert+renesas@...der.be>,
        Lukas Bulwahn <lukas.bulwahn@...hat.com>
CC: <netdev@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>
Subject: [PATCH net-next v3 7/7] arch: arm64: dts: k3-am64*: Add rpmsg-eth node

Add rpmsg-eth node to main_r5fss0_core0. This node describes the memory
region to be used for rpmsg ethernet communication. The commit adds
below changes,

- Adding new reserved memory region main_r5fss0_core0_memory_region_shm
- Adding rpmsg-eth node to main_r5fss0_core0 with memory-region as
  main_r5fss0_core0_memory_region_shm

Signed-off-by: MD Danish Anwar <danishanwar@...com>
---
 arch/arm64/boot/dts/ti/k3-am642-evm.dts | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index e01866372293..6e8e2c39146b 100644
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -61,7 +61,13 @@ main_r5fss0_core0_dma_memory_region: r5f-dma-memory@...00000 {
 
 		main_r5fss0_core0_memory_region: r5f-memory@...00000 {
 			compatible = "shared-dma-pool";
-			reg = <0x00 0xa0100000 0x00 0xf00000>;
+			reg = <0x00 0xa0100000 0x00 0x300000>;
+			no-map;
+		};
+
+		main_r5fss0_core0_memory_region_shm: r5f-shm-memory@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0xa0400000 0x00 0xc00000>;
 			no-map;
 		};
 
@@ -767,7 +773,8 @@ mbox_m4_0: mbox-m4-0 {
 &main_r5fss0_core0 {
 	mboxes = <&mailbox0_cluster2 &mbox_main_r5fss0_core0>;
 	memory-region = <&main_r5fss0_core0_dma_memory_region>,
-			<&main_r5fss0_core0_memory_region>;
+			<&main_r5fss0_core0_memory_region>,
+			<&main_r5fss0_core0_memory_region_shm>;
 };
 
 &main_r5fss0_core1 {
-- 
2.34.1


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