From: Antonio Borneo <antonio.borneo@foss.st.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Russell King <linux@armlinux.org.uk>,
Wim Van Sebroeck <wim@linux-watchdog.org>,
Guenter Roeck <linux@roeck-us.net>, <devicetree@vger.kernel.org>,
<linux-stm32@st-md-mailman.stormreply.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Cc: "Antonio Borneo" <antonio.borneo@foss.st.com>,
linux-watchdog@vger.kernel.org,
"Clément Le Goffic" <clement.legoffic@foss.st.com>,
"Amelie Delaunay" <amelie.delaunay@foss.st.com>
Subject: [PATCH v3 04/13] ARM: stm32: enable arm smc watchdog on stm32mp1xx
Date: Fri, 6 Nov 2026 17:34:20 +0100 [thread overview]
Message-ID: <20261106163429.618392-5-antonio.borneo@foss.st.com> (raw)
In-Reply-To: <20261106163429.618392-1-antonio.borneo@foss.st.com>
The watchdog IWDG1 is secure by default on STM32MP1xx SoCs.
On boards that keep it secure, Linux must use the arm,smc-wdt
driver to ping it.
Enable the driver for mach-stm32 when ARCH_MULTI_V7 is enabled.
Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com>
---
arch/arm/mach-stm32/Kconfig | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm/mach-stm32/Kconfig b/arch/arm/mach-stm32/Kconfig
index 4ac3384e397aa..de09b2afa0f2e 100644
--- a/arch/arm/mach-stm32/Kconfig
+++ b/arch/arm/mach-stm32/Kconfig
@@ -13,6 +13,8 @@ menuconfig ARCH_STM32
select RESET_CONTROLLER
select STM32_EXTI if ARM_SINGLE_ARMV7M
select STM32_FIREWALL
+ select WATCHDOG if ARCH_MULTI_V7
+ select ARM_SMC_WATCHDOG if ARCH_MULTI_V7
help
Support for STMicroelectronics STM32MP1 processors using Cortex-A7
cores. Note that support for the earlier Cortex-M based variants
--
2.34.1
next prev parent reply other threads:[~2026-11-06 16:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-06 16:34 [PATCH v3 00/13] Update watchdogs support on STM32MP platforms Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 01/13] watchdog: stm32_iwdg: get hardware version during probe Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 02/13] watchdog: stm32_iwdg: detect whether the watchdog is running Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 03/13] watchdog: stm32_iwdg: add pretimeout support for iwdg v4.0 Antonio Borneo
2026-11-06 16:34 ` Antonio Borneo [this message]
2026-11-06 16:34 ` [PATCH v3 05/13] ARM: dts: stm32: add iwdg1 node on stm32mp151 SoC Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 06/13] ARM: dts: stm32: enable iwdg1 on stm32mp15x ST boards Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 07/13] ARM: dts: stm32: move arm smc watchdog to stm32mp151 SoC Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 08/13] ARM: dts: stm32: enable arm smc watchdog on stm32mp15x scmi boards Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 09/13] ARM: dts: stm32: add watchdog0 alias on ST stm32mp1xx boards Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 10/13] arm64: dts: st: add iwdg1 and iwdg2 support to stm32mp211 Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 11/13] arm64: dts: st: add iwdg1 and iwdg2 support to stm32mp231 Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 12/13] arm64: dts: st: add iwdg1 and iwdg2 support to stm32mp251 Antonio Borneo
2026-11-06 16:34 ` [PATCH v3 13/13] arm64: dts: st: enable iwdg2 on stm32mp2xx ST boards Antonio Borneo
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