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Fri, 6 Nov 2026 17:34:36 +0100 From: Antonio Borneo To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Maxime Coquelin , Alexandre Torgue , Russell King , Wim Van Sebroeck , Guenter Roeck , , , , CC: Antonio Borneo , , =?UTF-8?q?Cl=C3=A9ment=20Le=20Goffic?= , Amelie Delaunay Subject: [PATCH v3 05/13] ARM: dts: stm32: add iwdg1 node on stm32mp151 SoC Date: Fri, 6 Nov 2026 17:34:21 +0100 Message-ID: <20261106163429.618392-6-antonio.borneo@foss.st.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261106163429.618392-1-antonio.borneo@foss.st.com> References: <20261106163429.618392-1-antonio.borneo@foss.st.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: STKCAS1NODE1.st.com (10.75.128.134) To STKDAG1NODE2.st.com (10.75.128.133) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DB1PEPF000509FB:EE_|DU4PR10MB8804:EE_ X-MS-Office365-Filtering-Correlation-Id: 96d49baa-40fe-4f08-fba6-08df3c23d93c X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700016|82310400026|376014|23010399003|7416014|1800799024|6133799003|22082099003|18002099003|10067099003|921020|56012099006|11063799006|261009223027099003|261021121427099003|261026121527099003|261021123027099003|261102123227099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: z+7yhk+GJXMAaa5flIea60chXIo0hqkE36H0VR5dL3DsdiJePpoK6pAbyjpWW1q8e4KYuAa+54QOi1B2tRNDXUWGObPjxSmnj1x0KTTxjT4RRre3JRef8owU10r9wZyuoS2MUvVgwLMf6alCeMruMda7hrVxmDy/KXQqQEcMxdfpaMOVKbeHAk0QzcEH8pBuR5rQJmXvus0I14OLR1wL7qJ+IihsifHcr2zWXYP5Nv82iE6cMXYeQ9Hz764XE9xxNic3CKCy58BOIljcs9RcIitVrdKFcpJ2dZEo5MTJ+qNU1hm9D8heeTCRAX73ouIYa5RGT8RjlzPS7cv6J89C3HYBG8dvjBF4OFrIQfi2Ic0CdVc/3Q7JPLtTt1oWGP4TFTRW4rmIHUuuktvI5n40vq7Gsmo+c7McycauZvJfoJuxxvMd4Ibh/fKqZcxNAusy X-OriginatorOrg: foss.st.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Nov 2026 16:34:37.4930 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 96d49baa-40fe-4f08-fba6-08df3c23d93c X-MS-Exchange-CrossTenant-Id: 75e027c9-20d5-47d5-b82f-77d7cd041e8f X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=75e027c9-20d5-47d5-b82f-77d7cd041e8f;Ip=[164.130.1.59];Helo=[smtpO365.st.com] X-MS-Exchange-CrossTenant-AuthSource: DB1PEPF000509FB.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU4PR10MB8804 From: Amelie Delaunay On STM32MP15x boards where IWDG1 is exposed as a non-secure watchdog, Linux must register and periodically ping it if it was started by an earlier boot stage. Add the IWDG1 node to the STM32MP151 SoC device tree as a child of the ETZPC node. Signed-off-by: Amelie Delaunay Signed-off-by: Antonio Borneo --- arch/arm/boot/dts/st/stm32mp151.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/st/stm32mp151.dtsi b/arch/arm/boot/dts/st/stm32mp151.dtsi index ae31883732388..e71b2ab58aa54 100644 --- a/arch/arm/boot/dts/st/stm32mp151.dtsi +++ b/arch/arm/boot/dts/st/stm32mp151.dtsi @@ -2037,6 +2037,16 @@ i2c4: i2c@5c002000 { status = "disabled"; }; + iwdg1: watchdog@5c003000 { + compatible = "st,stm32mp1-iwdg"; + reg = <0x5c003000 0x400>; + interrupts = ; + clocks = <&rcc IWDG1>, <&rcc CK_LSI>; + clock-names = "pclk", "lsi"; + access-controllers = <&etzpc 2>; + status = "disabled"; + }; + i2c6: i2c@5c009000 { compatible = "st,stm32mp15-i2c"; reg = <0x5c009000 0x400>; -- 2.34.1