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Tue, 27 Aug 2019 06:25:37 +0000 Received: from AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::5d98:e1f4:aa72:16b4]) by AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::5d98:e1f4:aa72:16b4%4]) with mapi id 15.20.2178.022; Tue, 27 Aug 2019 06:25:37 +0000 From: Peng Fan To: "sbabic@denx.de" , "festevam@gmail.com" , "lukma@denx.de" Thread-Topic: [PATCH V3 18/27] imx8m: soc: enable SCTR clock before timer init Thread-Index: AQHVXKA9EDTXlGcdqEKWv+u2tAzqMw== Date: Tue, 27 Aug 2019 06:25:37 +0000 Message-ID: <20190827064033.28973-19-peng.fan@nxp.com> References: <20190827064033.28973-1-peng.fan@nxp.com> In-Reply-To: <20190827064033.28973-1-peng.fan@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: git-send-email 2.16.4 x-clientproxiedby: HK2PR03CA0066.apcprd03.prod.outlook.com (2603:1096:202:17::36) To AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) authentication-results: spf=none (sender IP is ) smtp.mailfrom=peng.fan@nxp.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:AM0PR04MB5521; H:AM0PR04MB4481.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: fZlGAVTWy9ABJv8rbaTMOR2hqbNMjCsXukRPCajOkRzn1i/PLM7ODWgbFU5DqvSE/zGtjmVcOxZ4etxiJcpWUqPeUcOE0pyMRuc/ypCzdWfX+PtUkh/als8Cccy6sUX70qkoP8AafoumI2JpqvmPZgXduPdFYUhKM87H26viQ+J3w00IezGLPLLd+arbmTkx5qo+RdlCJogmQJDthdex46LDLMlnmstIu6/bcSIAGDA+PXBo4RoDmHIWtsKe8MO3wSnxuPNofL2UOuSVqhy63fvTdPC2vGx+QNJQv4zv+2g+yn7Qlc1a488gaOG07IGOfqSaLsIjd4ddWmgepsSdINcsBjC3waITst0di/FmjNomTDxUX6h2kjqDxZDUG9D+o8nZ3kCQe67XrE9mt4MFaqbECCBjCyTUFAcMDWLyJv0= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: a7e51c73-09a3-4b2a-b9b6-08d72ab75ff2 X-MS-Exchange-CrossTenant-originalarrivaltime: 27 Aug 2019 06:25:37.7566 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: oBc5BsyFZTRHFlhSwbFjN6U02FGz3Dp7Ucrodldw4yay3nuLh0AhJDEj/j/2uHhnsVPX9oTCPfYuZvTqPYT1Hg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB5521 Cc: "u-boot@lists.denx.de" , dl-uboot-imx Subject: [U-Boot] [PATCH V3 18/27] imx8m: soc: enable SCTR clock before timer init X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" To i.MX8MM SCTR clock is disabled by ROM, so before timer init need to enable it. To i.MX8MQ, it does not hurt the clock is enabled again. Signed-off-by: Peng Fan --- arch/arm/mach-imx/imx8m/soc.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index a33ca35653..ac80266010 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -231,6 +231,12 @@ static void imx_set_wdog_powerdown(bool enable) int arch_cpu_init(void) { struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR; + /* + * ROM might disable clock for SCTR, + * enable the clock before timer_init. + */ + if (IS_ENABLED(CONFIG_SPL_BUILD)) + clock_enable(CCGR_SCTR, 1); /* * Init timer at very early state, because sscg pll setting * will use it