On Tue, Jan 18, 2022 at 06:09:05PM +0100, Geert Uytterhoeven wrote: > Enable the watchdog timer on the Spider board. > > Extracted from a larger patch in the BSP by LUU HOAI. > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > Reviewed-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> Acked-by: Guenter Roeck <linux@xxxxxxxxxxxx> > --- > For the watchdog to be able to actually reboot the system, this depends > on proper configuration of the Watchdog Timer Reset Control Register > (WDTRSTCR) in the Reset (RST) module, either by Linux[1], or by the > firmware. > > [1] "[PATCH LOCAL v2] soc: renesas: rcar-rst: Allow WDT reset on R-Car > Gen4" > https://lore.kernel.org/r/39005cf749a99afc6d3ba96ff155fd2a231418a8.1642524743.git.geert+renesas@xxxxxxxxx > --- > arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi > index 156586532c844c41..3a90932fe85c8243 100644 > --- a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi > +++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi > @@ -31,6 +31,11 @@ &extalr_clk { > clock-frequency = <32768>; > }; > > +&rwdt { > + timeout-sec = <60>; > + status = "okay"; > +}; > + > &scif3 { > status = "okay"; > };
