From patchwork Thu Jan 7 12:17:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kepplinger X-Patchwork-Id: 12003751 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3B781C433E0 for ; Thu, 7 Jan 2021 12:20:17 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 E6C0223355 for ; Thu, 7 Jan 2021 12:20:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E6C0223355 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=puri.sm Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:MIME-Version:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id: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=8XbuZkfbIpOeiXUxoEOJVhvOuAyVw6dxwyxPE9SaKC0=; b=pYS5JaSUtIdT5X0Lmh9Kn5d0RQ L6nWTFx0ezaMWlBh2iFD0/vhb9s9HlZlr1cR9KhIMQts+sqB3yR+GNe54d8YVG9/Feiy3Uwuf9NZl jGDHsM0MYG4XPG6qJrxyl5Cixo/D7+klQjrfBvctQUcKEOaKKF8LNj2T1LaQD9vqXUZmvc/MGkzOY jFK4Fbu72n40DLiO0xvM+BNDVgNAk6yh0u52C00vvMuFiMF+aQJbH2nMV8OJIzEvOlXVX35BW9FeR x/M/YPwFsLSBI2Tq9axrrNj0ig7ETnE/WANzxmltIhqelhPWdtFNFL/gnv0mrM5bVVXUdhtgyuCco aV4RMGRg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kxUFo-0001lp-6i; Thu, 07 Jan 2021 12:19:00 +0000 Received: from comms.puri.sm ([159.203.221.185]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kxUFl-0001km-9m for linux-arm-kernel@lists.infradead.org; Thu, 07 Jan 2021 12:18:58 +0000 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id A5CB3E20F7; Thu, 7 Jan 2021 04:18:26 -0800 (PST) Received: from comms.puri.sm ([127.0.0.1]) by localhost (comms.puri.sm [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Vacq4ajD9Ilv; Thu, 7 Jan 2021 04:18:25 -0800 (PST) From: Martin Kepplinger To: robh@kernel.org, shawnguo@kernel.org, festevam@gmail.com, catalin.marinas@arm.com, will@kernel.org, georgi.djakov@linaro.org, cdleonard@gmail.com, gregkh@linuxfoundation.org Subject: [PATCH v4 1/5] arm64: dts: imx8mq: Add NOC node Date: Thu, 7 Jan 2021 13:17:50 +0100 Message-Id: <20210107121754.3295-2-martin.kepplinger@puri.sm> In-Reply-To: <20210107121754.3295-1-martin.kepplinger@puri.sm> References: <20210107121754.3295-1-martin.kepplinger@puri.sm> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210107_071857_453021_05E2462B X-CRM114-Status: UNSURE ( 9.08 ) X-CRM114-Notice: Please train this message. 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: devicetree@vger.kernel.org, kernel@puri.sm, linux-pm@vger.kernel.org, Martin Kepplinger , linux-kernel@vger.kernel.org, linux-imx@nxp.com, kernel@pengutronix.de, Leonard Crestez , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Leonard Crestez Add initial support for dynamic frequency scaling of the main NOC on imx8mq. Make DDRC the parent of the NOC (using passive governor) so that the main NOC is automatically scaled together with DDRC by default. Support for proactive scaling via interconnect will come on top. Signed-off-by: Leonard Crestez Signed-off-by: Martin Kepplinger Acked-by: Georgi Djakov --- arch/arm64/boot/dts/freescale/imx8mq.dtsi | 24 +++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index a841a023e8e0..dbe480a76aa1 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -1158,6 +1158,30 @@ }; }; + noc: interconnect@32700000 { + compatible = "fsl,imx8mq-noc", "fsl,imx8m-noc"; + reg = <0x32700000 0x100000>; + clocks = <&clk IMX8MQ_CLK_NOC>; + fsl,ddrc = <&ddrc>; + operating-points-v2 = <&noc_opp_table>; + + noc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-133M { + opp-hz = /bits/ 64 <133333333>; + }; + + opp-400M { + opp-hz = /bits/ 64 <400000000>; + }; + + opp-800M { + opp-hz = /bits/ 64 <800000000>; + }; + }; + }; + bus@32c00000 { /* AIPS4 */ compatible = "fsl,aips-bus", "simple-bus"; reg = <0x32c00000 0x400000>;