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Thu, 9 Jul 2020 08:17:02 +0000 From: peng.fan@nxp.com To: sbabic@denx.de, festevam@gmail.com Cc: uboot-imx@nxp.com, u-boot@lists.denx.de, Peng Fan Subject: [PATCH 03/11] imx8m: add sdhc/nand/ecspi clk api Date: Thu, 9 Jul 2020 16:40:34 +0800 Message-Id: <20200709084042.8234-4-peng.fan@nxp.com> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20200709084042.8234-1-peng.fan@nxp.com> References: <20200709084042.8234-1-peng.fan@nxp.com> X-ClientProxiedBy: SG2PR06CA0182.apcprd06.prod.outlook.com (2603:1096:4:1::14) To DB6PR0402MB2760.eurprd04.prod.outlook.com (2603:10a6:4:a1::14) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from linux-1xn6.ap.freescale.net (119.31.174.71) by SG2PR06CA0182.apcprd06.prod.outlook.com (2603:1096:4:1::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3174.20 via Frontend Transport; Thu, 9 Jul 2020 08:17:00 +0000 X-Mailer: git-send-email 2.16.4 X-Originating-IP: [119.31.174.71] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 1a68de0f-b16c-4211-9e8b-08d823e07594 X-MS-TrafficTypeDiagnostic: DB6PR0402MB2759: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:336; 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For the expected rate settings, we use non-DM clk to do that. Then we could have simple DM clk for i.MX and could also share between SPL/U-Boot proper. Signed-off-by: Peng Fan --- arch/arm/mach-imx/imx8m/clock_imx8mm.c | 66 ++++++++++++++++++++++++++++++++++ 1 file changed, 66 insertions(+) diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mm.c b/arch/arm/mach-imx/imx8m/clock_imx8mm.c index 0a8208606d..68effbd54f 100644 --- a/arch/arm/mach-imx/imx8m/clock_imx8mm.c +++ b/arch/arm/mach-imx/imx8m/clock_imx8mm.c @@ -317,6 +317,72 @@ void init_wdog_clk(void) clock_enable(CCGR_WDOG3, 1); } +void init_clk_usdhc(u32 index) +{ + /* + * set usdhc clock root + * sys pll1 400M + */ + switch (index) { + case 0: + clock_enable(CCGR_USDHC1, 0); + clock_set_target_val(USDHC1_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(1)); + clock_enable(CCGR_USDHC1, 1); + return; + case 1: + clock_enable(CCGR_USDHC2, 0); + clock_set_target_val(USDHC2_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(1)); + clock_enable(CCGR_USDHC2, 1); + return; + case 2: + clock_enable(CCGR_USDHC3, 0); + clock_set_target_val(USDHC3_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(1)); + clock_enable(CCGR_USDHC3, 1); + return; + default: + printf("Invalid usdhc index\n"); + return; + } +} + +void init_clk_ecspi(u32 index) +{ + switch (index) { + case 0: + clock_enable(CCGR_ECSPI1, 0); + clock_set_target_val(ECSPI1_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_ECSPI1, 1); + return; + case 1: + clock_enable(CCGR_ECSPI2, 0); + clock_set_target_val(ECSPI2_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_ECSPI2, 1); + case 2: + clock_enable(CCGR_ECSPI3, 0); + clock_set_target_val(ECSPI3_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(0)); + clock_enable(CCGR_ECSPI3, 1); + return; + default: + printf("Invalid ecspi index\n"); + return; + } +} + +void init_nand_clk(void) +{ + /* + * set rawnand root + * sys pll1 400M + */ + clock_enable(CCGR_RAWNAND, 0); + clock_set_target_val(NAND_CLK_ROOT, CLK_ROOT_ON | + CLK_ROOT_SOURCE_SEL(3) | CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV4)); /* 100M */ + clock_enable(CCGR_RAWNAND, 1); +} + int clock_init(void) { u32 val_cfg0;