Message ID | 20220214124735.25580-10-peng.fan@oss.nxp.com |
---|---|
State | Superseded |
Delegated to: | Stefano Babic |
Headers | show
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Mon, 14 Feb 2022 12:08:30 +0000 From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com> To: sbabic@denx.de Cc: festevam@gmail.com, u-boot@lists.denx.de, uboot-imx@nxp.com, Ye Li <ye.li@nxp.com>, Peng Fan <peng.fan@nxp.com> Subject: [PATCH 09/27] imx: imx8ulp: cgc: Switch to NICLPAV to FRO192 before PLL4 init Date: Mon, 14 Feb 2022 20:47:17 +0800 Message-Id: <20220214124735.25580-10-peng.fan@oss.nxp.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20220214124735.25580-1-peng.fan@oss.nxp.com> References: <20220214124735.25580-1-peng.fan@oss.nxp.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: SG2PR06CA0165.apcprd06.prod.outlook.com (2603:1096:1:1e::19) To DU0PR04MB9417.eurprd04.prod.outlook.com (2603:10a6:10:358::11) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 59bec23b-8626-4f96-2928-08d9efb2b6c2 X-MS-TrafficTypeDiagnostic: AM6PR04MB5861:EE_ X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-Microsoft-Antispam-PRVS: <AM6PR04MB586136DE20AC32823FFCD5D0C9339@AM6PR04MB5861.eurprd04.prod.outlook.com> X-MS-Oob-TLC-OOBClassifiers: OLM:3044; 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Series |
imx: imx8ulp: misc update from downstream
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diff --git a/arch/arm/mach-imx/imx8ulp/cgc.c b/arch/arm/mach-imx/imx8ulp/cgc.c index ccd977f1a5..d240abaee4 100644 --- a/arch/arm/mach-imx/imx8ulp/cgc.c +++ b/arch/arm/mach-imx/imx8ulp/cgc.c @@ -189,6 +189,14 @@ void cgc1_pll3_init(ulong freq) void cgc2_pll4_init(bool pll4_reset) { + /* Check the NICLPAV first to ensure not from PLL4 PFD1 clock */ + if ((readl(&cgc2_regs->niclpavclk) & GENMASK(29, 28)) == BIT(28)) { + /* switch to FRO 192 first */ + clrbits_le32(&cgc2_regs->niclpavclk, GENMASK(29, 28)); + while (!(readl(&cgc2_regs->niclpavclk) & BIT(27))) + ; + } + /* Disable PFD DIV and clear DIV */ writel(0x80808080, &cgc2_regs->pll4div_pfd0); writel(0x80808080, &cgc2_regs->pll4div_pfd1);