* [PATCH 0/2] Declare and enable watchdog on stm32mp25
@ 2023-09-22 8:10 Alexandre Torgue
2023-09-22 8:10 ` [PATCH 1/2] arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251 Alexandre Torgue
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Alexandre Torgue @ 2023-09-22 8:10 UTC (permalink / raw)
To: robh+dt, krzysztof.kozlowski+dt, Conor Dooley
Cc: linux-arm-kernel, devicetree, Alexandre Torgue, linux-stm32,
linux-kernel
Secure ARM watchdog is used on stm32mp25 relying on SMC to configure
and kick the watchdog. It is set to 32 seconds on stm32mp257f-ev1
board.
Regards
Alex
Alexandre Torgue (2):
arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251
arm64: dts: st: enable secure arm-wdt watchdog on stm32mp257f-ev1
arch/arm64/boot/dts/st/stm32mp251.dtsi | 6 ++++++
arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 5 +++++
2 files changed, 11 insertions(+)
--
2.17.1
^ permalink raw reply [flat|nested] 4+ messages in thread* [PATCH 1/2] arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251
2023-09-22 8:10 [PATCH 0/2] Declare and enable watchdog on stm32mp25 Alexandre Torgue
@ 2023-09-22 8:10 ` Alexandre Torgue
2023-09-22 8:10 ` [PATCH 2/2] arm64: dts: st: enable secure arm-wdt watchdog on stm32mp257f-ev1 Alexandre Torgue
2023-09-29 7:02 ` [PATCH 0/2] Declare and enable watchdog on stm32mp25 Alexandre TORGUE
2 siblings, 0 replies; 4+ messages in thread
From: Alexandre Torgue @ 2023-09-22 8:10 UTC (permalink / raw)
To: robh+dt, krzysztof.kozlowski+dt, Conor Dooley
Cc: linux-arm-kernel, devicetree, Alexandre Torgue, linux-stm32,
linux-kernel
Add the node to use the ARM SMC watchdog support. It will
use a dedicated smc-id to configure and kick the watchdog.
Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index d7cb05d534ac..124403f5f1f4 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -28,6 +28,12 @@
interrupt-parent = <&intc>;
};
+ arm_wdt: watchdog {
+ compatible = "arm,smc-wdt";
+ arm,smc-id = <0xb200005a>;
+ status = "disabled";
+ };
+
clocks {
ck_flexgen_08: ck-flexgen-08 {
#clock-cells = <0>;
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* [PATCH 2/2] arm64: dts: st: enable secure arm-wdt watchdog on stm32mp257f-ev1
2023-09-22 8:10 [PATCH 0/2] Declare and enable watchdog on stm32mp25 Alexandre Torgue
2023-09-22 8:10 ` [PATCH 1/2] arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251 Alexandre Torgue
@ 2023-09-22 8:10 ` Alexandre Torgue
2023-09-29 7:02 ` [PATCH 0/2] Declare and enable watchdog on stm32mp25 Alexandre TORGUE
2 siblings, 0 replies; 4+ messages in thread
From: Alexandre Torgue @ 2023-09-22 8:10 UTC (permalink / raw)
To: robh+dt, krzysztof.kozlowski+dt, Conor Dooley
Cc: linux-arm-kernel, devicetree, Alexandre Torgue, linux-stm32,
linux-kernel
Enable the watchdog and define the default timeout to 32 seconds.
Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 6c3b83c2b48f..85891124a3a9 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -63,6 +63,11 @@
status = "okay";
};
+&arm_wdt {
+ timeout-sec = <32>;
+ status = "okay";
+};
+
&usart2 {
pinctrl-names = "default", "idle", "sleep";
pinctrl-0 = <&usart2_pins_a>;
--
2.17.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH 0/2] Declare and enable watchdog on stm32mp25
2023-09-22 8:10 [PATCH 0/2] Declare and enable watchdog on stm32mp25 Alexandre Torgue
2023-09-22 8:10 ` [PATCH 1/2] arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251 Alexandre Torgue
2023-09-22 8:10 ` [PATCH 2/2] arm64: dts: st: enable secure arm-wdt watchdog on stm32mp257f-ev1 Alexandre Torgue
@ 2023-09-29 7:02 ` Alexandre TORGUE
2 siblings, 0 replies; 4+ messages in thread
From: Alexandre TORGUE @ 2023-09-29 7:02 UTC (permalink / raw)
To: robh+dt, krzysztof.kozlowski+dt, Conor Dooley
Cc: linux-arm-kernel, devicetree, linux-stm32, linux-kernel
On 9/22/23 10:10, Alexandre Torgue wrote:
> Secure ARM watchdog is used on stm32mp25 relying on SMC to configure
> and kick the watchdog. It is set to 32 seconds on stm32mp257f-ev1
> board.
>
> Regards
> Alex
>
> Alexandre Torgue (2):
> arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251
> arm64: dts: st: enable secure arm-wdt watchdog on stm32mp257f-ev1
>
> arch/arm64/boot/dts/st/stm32mp251.dtsi | 6 ++++++
> arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 5 +++++
> 2 files changed, 11 insertions(+)
>
Series applied on stm32-next.
Regards
Alex
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-09-29 7:03 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2023-09-22 8:10 [PATCH 0/2] Declare and enable watchdog on stm32mp25 Alexandre Torgue
2023-09-22 8:10 ` [PATCH 1/2] arm64: dts: st: add arm-wdt node for watchdog support on stm32mp251 Alexandre Torgue
2023-09-22 8:10 ` [PATCH 2/2] arm64: dts: st: enable secure arm-wdt watchdog on stm32mp257f-ev1 Alexandre Torgue
2023-09-29 7:02 ` [PATCH 0/2] Declare and enable watchdog on stm32mp25 Alexandre TORGUE
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