arm64: dts: allwinner: h6: add watchdog node

Allwinner H6 has a watchog node which seems broken
on some boards.

Test has been performed on several boards.

Chen-Yu Tsai boards:
Pine H64 - H6448BA 7782 => OK
OrangePi Lite 2 - H8068BA 61C2 => KO

Martin Ayotte boards:
Pine H64 - H8069BA 6892 => OK
OrangePi 3 - HA047BA 69W2 => KO
OrangePi One Plus - H7310BA 6842 => KO
OrangePi Lite2 - H6448BA 6662 => KO

Clément Péron board:
Beelink GS1 - H7309BA 6842 => KO

As it seems not fixable for now, declare the node
but leave it disable with a comment.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 16c5c3d0fd813bda73d3ac0c65c5827d7d035f95..13e70aebddbeda9001e64104f2281a1ca6fc273b 100644 (file)
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -208,6 +208,15 @@ sid: sid@3006000 {
                        reg = <0x03006000 0x400>;
                };
 
+               watchdog: watchdog@30090a0 {
+                       compatible = "allwinner,sun50i-h6-wdt",
+                                    "allwinner,sun6i-a31-wdt";
+                       reg = <0x030090a0 0x20>;
+                       interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+                       /* Broken on some H6 boards */
+                       status = "disabled";
+               };
+
                pio: pinctrl@300b000 {
                        compatible = "allwinner,sun50i-h6-pinctrl";
                        reg = <0x0300b000 0x400>;