| Message ID | b36b2bb5770e10d906571721a3d73ca205b6f56e.1642525158.git.geert+renesas@glider.be |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: renesas: Add R-Car S4-8 watchdog support on Spider | expand |
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@glider.be> Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
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@glider.be> > Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Guenter Roeck <linux@roeck-us.net> > --- > 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@glider.be > --- > 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"; > };
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"; };
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@glider.be> --- 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@glider.be --- arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 5 +++++ 1 file changed, 5 insertions(+)