From bdc42353ba3dd3619b6186748701f87ecc8e7458 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Sat, 11 Mar 2017 19:25:22 +0200 Subject: ARM: dts: exynos: Fix watchdog reset on Exynos4412 The Exynos4412 has the same watchdog as newer SoCs (e.g. Exynos5250). Just like the others, for working it requires additional steps in Power Management Unit: unmasking the reset request and enabling the system reset. Without these additional steps in PMU, the watchdog will not be able to reset the system on expiration event. Change the compatible of Exynos4412 watchdog device node to samsung,exynos5250-wdt which includes the additional PMU steps. This will also fix infinite watchdog interrupt in soft mode (lack of interrupt clear) because it is also included in samsung,exynos5250-wdt. Signed-off-by: Krzysztof Kozlowski Acked-by: Guenter Roeck --- arch/arm/boot/dts/exynos4210.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/arm/boot/dts/exynos4210.dtsi') diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi index f9408188f97f..8bff2253acca 100644 --- a/arch/arm/boot/dts/exynos4210.dtsi +++ b/arch/arm/boot/dts/exynos4210.dtsi @@ -119,6 +119,15 @@ }; }; + watchdog: watchdog@10060000 { + compatible = "samsung,s3c2410-wdt"; + reg = <0x10060000 0x100>; + interrupts = ; + clocks = <&clock CLK_WDT>; + clock-names = "watchdog"; + status = "disabled"; + }; + clock: clock-controller@10030000 { compatible = "samsung,exynos4210-clock"; reg = <0x10030000 0x20000>; -- cgit v1.2.3