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Thu, 29 Nov 2018 01:49:57 +0000 Received: from DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::adf8:f49d:deb4:58fd]) by DB3PR0402MB3916.eurprd04.prod.outlook.com ([fe80::adf8:f49d:deb4:58fd%2]) with mapi id 15.20.1361.019; Thu, 29 Nov 2018 01:49:57 +0000 From: Anson Huang To: "a.zummo@towertech.it" , "alexandre.belloni@bootlin.com" , "robh+dt@kernel.org" , "mark.rutland@arm.com" , "catalin.marinas@arm.com" , "will.deacon@arm.com" , Aisheng DONG , Andy Gross , "arnd@arndb.de" , "horms+renesas@verge.net.au" , "heiko@sntech.de" , "bjorn.andersson@linaro.org" , "enric.balletbo@collabora.com" , "amit.kucheria@linaro.org" , "ezequiel@collabora.com" , "olof@lixom.net" , "LW@KARO-electronics.de" , "shawnguo@kernel.org" , "linux-rtc@vger.kernel.org" , "devicetree@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" CC: dl-linux-imx Subject: [PATCH V4 0/4] Add i.MX system controller RTC driver Thread-Topic: [PATCH V4 0/4] Add i.MX system controller RTC driver Thread-Index: AQHUh4XVDagmHqVV106EeG0wt2T6cg== Date: Thu, 29 Nov 2018 01:49:57 +0000 Message-ID: <1543455856-18021-1-git-send-email-Anson.Huang@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.7.4 x-clientproxiedby: HK2PR03CA0045.apcprd03.prod.outlook.com (2603:1096:202:17::15) To DB3PR0402MB3916.eurprd04.prod.outlook.com (2603:10a6:8:10::18) authentication-results: spf=none (sender IP is ) smtp.mailfrom=anson.huang@nxp.com; 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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: KwQmLuHl1uqba8Mdd17CtTbXdwBWE3RlYHhwlQxzG4sSpcie9jFbY+r/lqWvw/HpYEtUki2QDaCjeraluNTcAEig+iuKYKhAN0R9uUK1wW+8tlXzIP9jUGhvBc13YHqmaR2IQE9e2BrAKrUwkFaYR5DOVhFDhkPnapqF4VxU4kAU3Att0vuDM0lfE8uwOv9KK1RVOnI3N5JP+yG++2+icascW8qqdKTrpo+uzW+zwo6aCmJOZxyhZ6QiVuwlXvAlgv0VRYKyvl2tLAJtKvPoXCPP2t/xIFydbIr5xMPdqhmsM5m0/sFb57YRnzgI1CKMy5z7ysXDauL5PiEfYj0vvE07TcDOTxWJJWfy74621DE= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6dcedd22-9b76-435d-b4ae-08d6559cf737 X-MS-Exchange-CrossTenant-originalarrivaltime: 29 Nov 2018 01:49:57.5386 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB3PR0402MB3930 Sender: linux-rtc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rtc@vger.kernel.org NXP i.MX8QXP is an ARMv8 SoC with a Cortex-M4 core inside as system controller, the system controller is in charge of system power, clock and secure RTC etc. management, Linux kernel has to communicate with system controller via MU (message unit) IPC to do RTC operation. Since the RTC set time MUST to be done in secure EL3 mode (required by system controller firmware) and ALARM functions needs to be done with general MU IRQ handle, these are NOT ready NOW, so this patch ONLY supports RTC read time for now. Note that this patch set is based on [V4,5/5] defconfig: arm64: add imx8qxp= support, https://patchwork.kernel.org/patch/10677315/ Anson Huang (4): rtc: add i.MX system controller RTC support dt-bindings: rtc: add binding doc for i.MX system controller RTC driver defconfig: arm64: add i.MX system controller RTC support ARM64: dts: imx: add i.MX8QXP system controller RTC support .../devicetree/bindings/rtc/rtc-imx-sc.txt | 10 ++ arch/arm64/boot/dts/freescale/imx8qxp.dtsi | 4 + arch/arm64/configs/defconfig | 1 + drivers/rtc/Kconfig | 6 ++ drivers/rtc/Makefile | 1 + drivers/rtc/rtc-imx-sc.c | 104 +++++++++++++++++= ++++ 6 files changed, 126 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/rtc-imx-sc.txt create mode 100644 drivers/rtc/rtc-imx-sc.c --=20 2.7.4