From patchwork Wed Feb 19 10:17:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peng Fan X-Patchwork-Id: 11391163 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7800F17E0 for ; Wed, 19 Feb 2020 10:23:57 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 50AB42464E for ; Wed, 19 Feb 2020 10:23:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="oR1aZo5t"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=nxp.com header.i=@nxp.com header.b="bWOPgk1m" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 50AB42464E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=5F3FZZ/IfZqUc2yKzn9lDpEHxK871xf4kOUalEvLDKQ=; b=oR1aZo5t88DEq5 uQ+57a6sKglJpxeFDYcoWdl2CpXfkGEsWnqnN/bnvsrf6TcjVjfkdJIjzEtBp9ZXv6wjv8eToFIxF r+fdYGBOjf0hff6ZDBpcYjy4XCehHGXWahaAkE+gboLvdQXL0mOCl9ptkItlr5F604cmoUrDrY6Up p9oZkNtQvs14z540vSAcEOBGbVFVifwD4lkYy4codEzGedZRbeqNXac877X968m1Pak6GazRxLvqB FAoS85javvk0dywl7oe1mmzJ1at751OPkohWTeEi5x3n7kOC7hIRISznTLNzAcb/ZxP0u5oP09SDr O/DKY+MEpmtNVEM1BQFw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j4MWH-0005tP-AQ; Wed, 19 Feb 2020 10:23:53 +0000 Received: from mail-eopbgr150042.outbound.protection.outlook.com ([40.107.15.42] helo=EUR01-DB5-obe.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j4MVk-0005Nx-Qo for linux-arm-kernel@lists.infradead.org; Wed, 19 Feb 2020 10:23:22 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=fXvua4OwqV9RoRHy2vZNkOUvMfNLJWIvoYlohfigTU4CrItxetr2rH3uG4YO67frMtjwJD5z3CdUqU9vk1OvWfB+RQJcBIZMCG6Bw9sMWB6zxEilyqP9AcwMF9kt44dupcO7D2bI8JdVWYejh5AupLCAtUPA+7V/WXLBxIwOr3Gm1xE+P9/GMxAeTFA4otTETgDnIfYcmepqG9c3CniAx9CFp6izamS2agf2y9i7A94IDy6gZTSf/AkqBofQHymk1NTqWJUOnUn0t3UZFf2t8+AMuwT2YR0SGAl/acrxRLnbrIOIGHxFrPhI6WVaoruO52Wq7bs4Q4LF+yXDFQ8mbw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=f43JoIc+8YLyGY0c4NvlXlO4/YEjkBxXnXJBlMKE35E=; b=GtyS2VR7pVXLNQKSDnsf5H2OxL4tj07M5eQl9wj7/aqtORApdpNM9EK/8xhiQTtsj9ZMjeC2kscvasF5PrevAVfeFiEvIC+xRfnqd9s1T5sokJRfE6YuzfvzVw82CNqXPvSrmkpg2k6wrDp6vQyX5alaIJnskIPOave5PnnGlRyMEjqGEHIpJ4XmIxaetJuw4O5DW+rsTICwOu89vcO2GpGemMxgksKujmHPb9LGZDzwQOfFstdIFoFkq+zOM9Vw39Yy6EgPAAfz9hBlBy0xWdxzOLeGZr4Y1JGDJfxXBCdswCAbY/J9O/zlekVqHtOrPp6fOoeiqM90un58VyvsaQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nxp.com; dmarc=pass action=none header.from=nxp.com; dkim=pass header.d=nxp.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nxp.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=f43JoIc+8YLyGY0c4NvlXlO4/YEjkBxXnXJBlMKE35E=; b=bWOPgk1m+VU3w0rv4iK9uicUAsdZUAVsy7K/3dlh4VvdtmWmN7pfEB91sCgDuF+q/NONC6FGYZVrJK6iIDZkyBQ6TaAax3n0DlpTATEbkFrdcSQqGPq55GSxeUeWD21SalHEr8rKlD3NbEqKbmLnze/VJHkr74z1U/f6donEUZw= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=peng.fan@nxp.com; Received: from AM0PR04MB4481.eurprd04.prod.outlook.com (52.135.147.15) by AM0PR04MB4099.eurprd04.prod.outlook.com (52.134.93.149) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2729.22; Wed, 19 Feb 2020 10:23:18 +0000 Received: from AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::91e2:17:b3f4:d422]) by AM0PR04MB4481.eurprd04.prod.outlook.com ([fe80::91e2:17:b3f4:d422%3]) with mapi id 15.20.2729.032; Wed, 19 Feb 2020 10:23:18 +0000 From: peng.fan@nxp.com To: sboyd@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, abel.vesa@nxp.com, leonard.crestez@nxp.com Subject: [PATCH RESEND v3 2/4] clk: imx: imx8mm: fix a53 cpu clock Date: Wed, 19 Feb 2020 18:17:07 +0800 Message-Id: <1582107429-21123-3-git-send-email-peng.fan@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582107429-21123-1-git-send-email-peng.fan@nxp.com> References: <1582107429-21123-1-git-send-email-peng.fan@nxp.com> X-ClientProxiedBy: HKAPR04CA0014.apcprd04.prod.outlook.com (2603:1096:203:d0::24) To AM0PR04MB4481.eurprd04.prod.outlook.com (2603:10a6:208:70::15) MIME-Version: 1.0 Received: from localhost.localdomain (119.31.174.66) by HKAPR04CA0014.apcprd04.prod.outlook.com (2603:1096:203:d0::24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.2729.23 via Frontend Transport; Wed, 19 Feb 2020 10:23:13 +0000 X-Mailer: git-send-email 2.7.4 X-Originating-IP: [119.31.174.66] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 06a79a44-f7d2-42ae-02f3-08d7b525bc89 X-MS-TrafficTypeDiagnostic: AM0PR04MB4099:|AM0PR04MB4099: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6790; X-Forefront-PRVS: 0318501FAE X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10009020)(4636009)(346002)(366004)(376002)(396003)(136003)(39860400002)(199004)(189003)(5660300002)(2616005)(956004)(66946007)(6666004)(52116002)(26005)(6506007)(16526019)(186003)(66556008)(66476007)(69590400006)(316002)(6512007)(8936002)(81166006)(81156014)(2906002)(8676002)(4326008)(6486002)(36756003)(86362001)(9686003)(478600001)(32563001); DIR:OUT; SFP:1101; SCL:1; SRVR:AM0PR04MB4099; 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: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-MS-Exchange-AntiSpam-MessageData: u9XZIs+C0WTodMDgzVdKq3y3iHgrv7G+I3anBcN6RJb+XfRXNGTyTn5yWk77b+0fHa+o61tIRUE+3lVlW67EPRzIpw3EBnamyo1/63Yox/kWMp3MVMjF6K85pXLDaKReGGhqhQTl9fNJB4S3Z8bh0Q== X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 06a79a44-f7d2-42ae-02f3-08d7b525bc89 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Feb 2020 10:23:17.9306 (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: FpU95WZz34RnGuf2QeFqCFYDJnhDlyuc9jy/xBht1Fsf/Tn3nPDffdybyDbDbnEE7Q+sHUZxI0JpCGzWv7B9jg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB4099 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200219_022320_940519_6D89B664 X-CRM114-Status: GOOD ( 13.01 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.15.42 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 SPF_HELO_PASS SPF: HELO matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: aisheng.dong@nxp.com, Peng Fan , ping.bai@nxp.com, anson.huang@nxp.com, linux-kernel@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, l.stach@pengutronix.de Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Peng Fan The A53 CCM clk root only accepts input up to 1GHz, CCM A53 root signoff timing is 1Ghz, however the A53 core which sources from CCM root could run above 1GHz which voilates the CCM. There is a CORE_SEL slice before A53 core, we need configure the CORE_SEL slice source from ARM PLL, not A53 CCM clk root. The A53 CCM clk root should only be used when need to change ARM PLL frequency. Add arm_a53_core clk that could source from arm_a53_div and arm_pll_out. Configure a53 ccm root sources from 800MHz sys pll Configure a53 core sources from arm_pll_out Mark arm_a53_core as critical clock Fixes: ba5625c3e272 ("clk: imx: Add clock driver support for imx8mm") Reviewed-by: Jacky Bai Signed-off-by: Peng Fan --- drivers/clk/imx/clk-imx8mm.c | 16 ++++++++++++---- include/dt-bindings/clock/imx8mm-clock.h | 4 +++- 2 files changed, 15 insertions(+), 5 deletions(-) diff --git a/drivers/clk/imx/clk-imx8mm.c b/drivers/clk/imx/clk-imx8mm.c index 2f2c240a86e2..f851cd447e7c 100644 --- a/drivers/clk/imx/clk-imx8mm.c +++ b/drivers/clk/imx/clk-imx8mm.c @@ -41,6 +41,8 @@ static const char *sys_pll3_bypass_sels[] = {"sys_pll3", "sys_pll3_ref_sel", }; static const char *imx8mm_a53_sels[] = {"osc_24m", "arm_pll_out", "sys_pll2_500m", "sys_pll2_1000m", "sys_pll1_800m", "sys_pll1_400m", "audio_pll1_out", "sys_pll3_out", }; +static const char * const imx8mm_a53_core_sels[] = {"arm_a53_div", "arm_pll_out", }; + static const char *imx8mm_m4_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll2_250m", "sys_pll1_266m", "sys_pll1_800m", "audio_pll1_out", "video_pll1_out", "sys_pll3_out", }; @@ -439,6 +441,9 @@ static int imx8mm_clocks_probe(struct platform_device *pdev) hws[IMX8MM_CLK_GPU2D_CG] = hws[IMX8MM_CLK_GPU2D_CORE]; hws[IMX8MM_CLK_GPU2D_DIV] = hws[IMX8MM_CLK_GPU2D_CORE]; + /* CORE SEL */ + hws[IMX8MM_CLK_A53_CORE] = imx_clk_hw_mux2_flags("arm_a53_core", base + 0x9880, 24, 1, imx8mm_a53_core_sels, ARRAY_SIZE(imx8mm_a53_core_sels), CLK_IS_CRITICAL); + /* BUS */ hws[IMX8MM_CLK_MAIN_AXI] = imx8m_clk_hw_composite_critical("main_axi", imx8mm_main_axi_sels, base + 0x8800); hws[IMX8MM_CLK_ENET_AXI] = imx8m_clk_hw_composite("enet_axi", imx8mm_enet_axi_sels, base + 0x8880); @@ -605,11 +610,14 @@ static int imx8mm_clocks_probe(struct platform_device *pdev) hws[IMX8MM_CLK_DRAM_ALT_ROOT] = imx_clk_hw_fixed_factor("dram_alt_root", "dram_alt", 1, 4); hws[IMX8MM_CLK_DRAM_CORE] = imx_clk_hw_mux2_flags("dram_core_clk", base + 0x9800, 24, 1, imx8mm_dram_core_sels, ARRAY_SIZE(imx8mm_dram_core_sels), CLK_IS_CRITICAL); - hws[IMX8MM_CLK_ARM] = imx_clk_hw_cpu("arm", "arm_a53_div", - hws[IMX8MM_CLK_A53_DIV]->clk, - hws[IMX8MM_CLK_A53_SRC]->clk, + clk_hw_set_parent(hws[IMX8MM_CLK_A53_SRC], hws[IMX8MM_SYS_PLL1_800M]); + clk_hw_set_parent(hws[IMX8MM_CLK_A53_CORE], hws[IMX8MM_ARM_PLL_OUT]); + + hws[IMX8MM_CLK_ARM] = imx_clk_hw_cpu("arm", "arm_a53_core", + hws[IMX8MM_CLK_A53_CORE]->clk, + hws[IMX8MM_CLK_A53_CORE]->clk, hws[IMX8MM_ARM_PLL_OUT]->clk, - hws[IMX8MM_SYS_PLL1_800M]->clk); + hws[IMX8MM_CLK_A53_DIV]->clk); imx_check_clk_hws(hws, IMX8MM_CLK_END); diff --git a/include/dt-bindings/clock/imx8mm-clock.h b/include/dt-bindings/clock/imx8mm-clock.h index dbfee6579d6c..e63a5530aed7 100644 --- a/include/dt-bindings/clock/imx8mm-clock.h +++ b/include/dt-bindings/clock/imx8mm-clock.h @@ -272,6 +272,8 @@ #define IMX8MM_CLK_CLKO2 250 -#define IMX8MM_CLK_END 251 +#define IMX8MM_CLK_A53_CORE 251 + +#define IMX8MM_CLK_END 252 #endif