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@@ -0,0 +1,54 @@
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+From d41850437c364ef7aba9bc25c1c701699d0240e0 Mon Sep 17 00:00:00 2001
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+From: Harald Geyer <[email protected]>
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+Date: Thu, 15 Mar 2018 16:25:07 +0000
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+Subject: [PATCH] arm64: dts: allwinner: a64: Add watchdog
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+
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+Add a watchdog node for the A64, automatically enabled on all boards.
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+Since the device is compatible with an existing driver, we only reserve
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+a new compatible string to be used together with the fall back.
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+Tested on Olimex Teres-I.
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+
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+Signed-off-by: Harald Geyer <[email protected]>
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+Signed-off-by: Maxime Ripard <[email protected]>
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+---
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+ Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt | 6 ++++--
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+ arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 7 +++++++
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+ 2 files changed, 11 insertions(+), 2 deletions(-)
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+
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+diff --git a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
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+index 62dd5baad70e..04fc368d828f 100644
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+--- a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
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++++ b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
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+@@ -2,8 +2,10 @@ Allwinner SoCs Watchdog timer
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+
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+ Required properties:
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+
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+-- compatible : should be either "allwinner,sun4i-a10-wdt" or
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+- "allwinner,sun6i-a31-wdt"
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++- compatible : should be one of
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++ "allwinner,sun4i-a10-wdt"
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++ "allwinner,sun6i-a31-wdt"
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++ "allwinner,sun50i-a64-wdt","allwinner,sun6i-a31-wdt"
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+ - reg : Specifies base physical address and size of the registers.
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+
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+ Example:
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+diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
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+index 64e452a758fa..8401e7f887ff 100644
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+--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
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++++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
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+@@ -665,5 +665,12 @@
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ };
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++
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++ wdt0: watchdog@1c20ca0 {
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++ compatible = "allwinner,sun50i-a64-wdt",
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++ "allwinner,sun6i-a31-wdt";
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++ reg = <0x01c20ca0 0x20>;
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++ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
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++ };
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+ };
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+ };
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+--
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+2.17.1
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+
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Oskari Lemmela