From: Andre Przywara andre.przywara@arm.com
[ Upstream commit 01a850ee61cbf0ab77dcbf26bb133fec2dd640d6 ]
The F1C100 series of SoCs actually have their watchdog IP being compatible with the newer Allwinner generation, not the older one.
The currently described sun4i-a10-wdt actually does not work, neither the watchdog functionality (just never fires), nor the reset part (reboot hangs).
Replace the compatible string with the one used by the newer generation. Verified to work with both the watchdog and reboot functionality on a LicheePi Nano.
Also add the missing interrupt line and clock source, to make it binding compliant.
Fixes: 4ba16d17efdd ("ARM: dts: suniv: add initial DTSI file for F1C100s") Signed-off-by: Andre Przywara andre.przywara@arm.com Acked-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Jernej Skrabec jernej.skrabec@gmail.com Link: https://lore.kernel.org/r/20220317162349.739636-4-andre.przywara@arm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm/boot/dts/suniv-f1c100s.dtsi | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/suniv-f1c100s.dtsi b/arch/arm/boot/dts/suniv-f1c100s.dtsi index 6100d3b75f61..def830101448 100644 --- a/arch/arm/boot/dts/suniv-f1c100s.dtsi +++ b/arch/arm/boot/dts/suniv-f1c100s.dtsi @@ -104,8 +104,10 @@
wdt: watchdog@1c20ca0 { compatible = "allwinner,suniv-f1c100s-wdt", - "allwinner,sun4i-a10-wdt"; + "allwinner,sun6i-a31-wdt"; reg = <0x01c20ca0 0x20>; + interrupts = <16>; + clocks = <&osc32k>; };
uart0: serial@1c25000 {