The A80 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@xxxxxxxxxxxx>
---
arch/arm/boot/dts/sun9i-a80.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi
index c34d505c7efe..844a265dbd0e 100644
--- a/arch/arm/boot/dts/sun9i-a80.dtsi
+++ b/arch/arm/boot/dts/sun9i-a80.dtsi
@@ -318,6 +318,16 @@
};
};
+ msgbox: mailbox@803000 {
+ compatible = "allwinner,sun9i-a80-msgbox",
+ "allwinner,sun6i-a31-msgbox";
+ reg = <0x00803000 0x1000>;
+ clocks = <&ccu CLK_BUS_MSGBOX>;
+ resets = <&ccu RST_BUS_MSGBOX>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <1>;
+ };
+
gmac: ethernet@830000 {
compatible = "allwinner,sun7i-a20-gmac";
reg = <0x00830000 0x1054>;
--
2.21.0
