linux-kernel - [PATCH RFC v2 3/3] riscv: dts: thead: Add mailbox node

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Message-Id: <20240927094207.1650085-4-m.wilczynski@samsung.com>
Date: Fri, 27 Sep 2024 11:42:07 +0200
From: Michal Wilczynski <m.wilczynski@...sung.com>
To: drew@...7.com, guoren@...nel.org, wefu@...hat.com,
	jassisinghbrar@...il.com, robh@...nel.org, krzk+dt@...nel.org,
	conor+dt@...nel.org, paul.walmsley@...ive.com, palmer@...belt.com,
	aou@...s.berkeley.edu, m.szyprowski@...sung.com
Cc: linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, Michal Wilczynski <m.wilczynski@...sung.com>
Subject: [PATCH RFC v2 3/3] riscv: dts: thead: Add mailbox node

Add mailbox device tree node. This work is based on the vendor kernel [1].

Link: https://github.com/revyos/thead-kernel.git [1]

Signed-off-by: Michal Wilczynski <m.wilczynski@...sung.com>
---
 arch/riscv/boot/dts/thead/th1520.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index 6992060e6a54..7474f8b28592 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -555,5 +555,18 @@ portf: gpio-controller@0 {
 				interrupts = <55 IRQ_TYPE_LEVEL_HIGH>;
 			};
 		};
+
+		mbox_910t: mailbox@...fc38000 {
+		       compatible = "thead,th1520-mbox";
+		       reg = <0xff 0xffc38000 0x0 0x4000>,
+			     <0xff 0xffc44000 0x0 0x1000>,
+			     <0xff 0xffc4c000 0x0 0x1000>,
+			     <0xff 0xffc54000 0x0 0x1000>;
+		       reg-names = "local", "remote-icu0", "remote-icu1", "remote-icu2";
+		       interrupt-parent = <&plic>;
+		       interrupts = <28 IRQ_TYPE_LEVEL_HIGH>;
+		       thead,icu-cpu-id = <0>;
+		       #mbox-cells = <2>;
+		};
 	};
 };
-- 
2.34.1