linux-kernel - [PATCH v7 5/6] arm64: dts: allwinner: a64: Add msgbox node

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Message-Id: <20200223040853.2658-6-samuel@sholland.org>
Date:   Sat, 22 Feb 2020 22:08:52 -0600
From:   Samuel Holland <samuel@...lland.org>
To:     Jassi Brar <jassisinghbrar@...il.com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Ondrej Jirman <megous@...ous.com>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com,
        Samuel Holland <samuel@...lland.org>
Subject: [PATCH v7 5/6] arm64: dts: allwinner: a64: Add msgbox node

The A64 SoC contains a message box that can be used to send messages and
interrupts back and forth between the ARM application CPUs and the ARISC
coprocessor. Add a device tree node for it.

Signed-off-by: Samuel Holland <samuel@...lland.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 862b47dc9dc9..18492b542260 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -545,6 +545,16 @@ crypto: crypto@...5000 {
 			resets = <&ccu RST_BUS_CE>;
 		};
 
+		msgbox: mailbox@...7000 {
+			compatible = "allwinner,sun50i-a64-msgbox",
+				     "allwinner,sun6i-a31-msgbox";
+			reg = <0x01c17000 0x1000>;
+			clocks = <&ccu CLK_BUS_MSGBOX>;
+			resets = <&ccu RST_BUS_MSGBOX>;
+			interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+			#mbox-cells = <1>;
+		};
+
 		usb_otg: usb@...9000 {
 			compatible = "allwinner,sun8i-a33-musb";
 			reg = <0x01c19000 0x0400>;
-- 
2.24.1