From patchwork Fri Nov 8 22:39:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leonard Crestez X-Patchwork-Id: 11235697 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 C74601747 for ; Fri, 8 Nov 2019 22:41:47 +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 9E6A72087E for ; Fri, 8 Nov 2019 22:41:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="u3XlLXmn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9E6A72087E 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: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=048/tlECwVp5sg8ANurxRzpO25/jBDbr6+YWBPTy7ho=; b=u3XlLXmn+/NLAdG0Zm6TGmkzna F/q9va1P32ibLZBIYgInAblj+tNyKTnMOVnlitbeNj5JvdEBob/BmWwRUaOhaUOYb80tEuKl8t1ur rlYm7tmqFs8tKwo6ssdaRSAjY/y/KmErIpCKwv13UJ+j9FZt6+tdQMucLQF8H9wn9lNUzr1/Blbwv UkILbstginOOU13I7xlPaboYZGcdLDx04MiAtGxeeTOf7UK9o+vicdCu/5pYiVWsQAStuzj6C2SEw ZkpaKu8xuefOl7bfaoFRxM3PhMqIRf6AsKAHyhSfFITRSbtbgCAPgFVmRRtWZBbKAFDiJ9ccqgeT4 2OwlC+Uw==; 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 1iTCwq-0001o9-NP; Fri, 08 Nov 2019 22:41:44 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iTCvR-0000Q4-D5 for linux-arm-kernel@lists.infradead.org; Fri, 08 Nov 2019 22:40:20 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 30019200831; Fri, 8 Nov 2019 23:40:16 +0100 (CET) Received: from inva024.eu-rdc02.nxp.com (inva024.eu-rdc02.nxp.com [134.27.226.22]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 18B95200770; Fri, 8 Nov 2019 23:40:16 +0100 (CET) Received: from fsr-ub1864-112.ea.freescale.net (fsr-ub1864-112.ea.freescale.net [10.171.82.98]) by inva024.eu-rdc02.nxp.com (Postfix) with ESMTP id 0A283205CD; Fri, 8 Nov 2019 23:40:15 +0100 (CET) From: Leonard Crestez To: Stephen Boyd , MyungJoo Ham , Kyungmin Park , Rob Herring Subject: [PATCH v4 6/6] arm64: dts: imx8m: Add ddr controller nodes Date: Sat, 9 Nov 2019 00:39:56 +0200 Message-Id: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191108_144017_719217_8D918829 X-CRM114-Status: GOOD ( 12.51 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [92.121.34.21 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 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: Mark Rutland , =?utf-8?b?QXJ0dXIgxZp3aWdvxYQ=?= , Jacky Bai , Viresh Kumar , Michael Turquette , Angus Ainslie , Alexandre Bailon , linux-clk@vger.kernel.org, Abel Vesa , Saravana Kannan , Krzysztof Kozlowski , Chanwoo Choi , Matthias Kaehlcke , linux-imx@nxp.com, devicetree@vger.kernel.org, linux-pm@vger.kernel.org, Martin Kepplinger , linux-arm-kernel@lists.infradead.org, Dong Aisheng , Anson Huang , "Rafael J. Wysocki" , kernel@pengutronix.de, Fabio Estevam , Shawn Guo , Georgi Djakov MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org This is used by the imx-ddrc devfreq driver to implement dynamic frequency scaling of DRAM. Add a devfreq-event link to the dram PMU in order to support on-demand scaling of ddrc based on measured dram bandwidth usage. Support for proactive scaling via interconnect will come later. The high-performance bus masters which need that (display, vpu, gpu) are not yet enabled in upstream anyway. Signed-off-by: Leonard Crestez --- arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 18 ++++++++++++++ arch/arm64/boot/dts/freescale/imx8mm.dtsi | 13 +++++++++- .../boot/dts/freescale/imx8mn-ddr4-evk.dts | 18 ++++++++++++++ arch/arm64/boot/dts/freescale/imx8mn.dtsi | 13 +++++++++- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 24 +++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mq.dtsi | 13 +++++++++- 6 files changed, 96 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts index 28ab17a277bb..ecf0d385c164 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts @@ -75,10 +75,28 @@ &A53_0 { cpu-supply = <&buck2_reg>; }; +&ddrc { + operating-points-v2 = <&ddrc_opp_table>; + + ddrc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-25M { + opp-hz = /bits/ 64 <25000000>; + }; + opp-100M { + opp-hz = /bits/ 64 <100000000>; + }; + opp-750M { + opp-hz = /bits/ 64 <750000000>; + }; + }; +}; + &fec1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_fec1>; phy-mode = "rgmii-id"; phy-handle = <ðphy0>; diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi index 6edbdfe2d0d7..0fffc6362c43 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi @@ -856,11 +856,22 @@ #interrupt-cells = <3>; interrupt-controller; interrupts = ; }; - ddr-pmu@3d800000 { + ddrc: dram-controller@3d400000 { + compatible = "fsl,imx8mm-ddrc", "fsl,imx8m-ddrc"; + reg = <0x3d400000 0x400000>; + clock-names = "core", "pll", "alt", "apb"; + clocks = <&clk IMX8MM_CLK_DRAM_CORE>, + <&clk IMX8MM_DRAM_PLL>, + <&clk IMX8MM_CLK_DRAM_ALT>, + <&clk IMX8MM_CLK_DRAM_APB>; + devfreq-events = <&ddr_pmu>; + }; + + ddr_pmu: ddr-pmu@3d800000 { compatible = "fsl,imx8mm-ddr-pmu", "fsl,imx8m-ddr-pmu"; reg = <0x3d800000 0x400000>; interrupt-parent = <&gic>; interrupts = ; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts index 071949412caf..b051c927c11e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts @@ -15,10 +15,28 @@ &A53_0 { cpu-supply = <&buck2_reg>; }; +&ddrc { + operating-points-v2 = <&ddrc_opp_table>; + + ddrc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-25M { + opp-hz = /bits/ 64 <25000000>; + }; + opp-100M { + opp-hz = /bits/ 64 <100000000>; + }; + opp-600M { + opp-hz = /bits/ 64 <600000000>; + }; + }; +}; + &i2c1 { pmic@4b { compatible = "rohm,bd71847"; reg = <0x4b>; pinctrl-0 = <&pinctrl_pmic>; diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index e91625063f8e..c952bfb906a7 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi @@ -757,11 +757,22 @@ #interrupt-cells = <3>; interrupt-controller; interrupts = ; }; - ddr-pmu@3d800000 { + ddrc: dram-controller@3d400000 { + compatible = "fsl,imx8mn-ddrc", "fsl,imx8m-ddrc"; + reg = <0x3d400000 0x400000>; + clock-names = "core", "pll", "alt", "apb"; + clocks = <&clk IMX8MN_CLK_DRAM_CORE>, + <&clk IMX8MN_DRAM_PLL>, + <&clk IMX8MN_CLK_DRAM_ALT>, + <&clk IMX8MN_CLK_DRAM_APB>; + devfreq-events = <&ddr_pmu>; + }; + + ddr_pmu: ddr-pmu@3d800000 { compatible = "fsl,imx8mn-ddr-pmu", "fsl,imx8m-ddr-pmu"; reg = <0x3d800000 0x400000>; interrupts = ; }; }; diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts index c36685916683..ee6dc5f07622 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -103,10 +103,34 @@ &A53_3 { cpu-supply = <&buck2_reg>; }; +&ddrc { + operating-points-v2 = <&ddrc_opp_table>; + + ddrc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-25M { + opp-hz = /bits/ 64 <25000000>; + }; + opp-100M { + opp-hz = /bits/ 64 <100000000>; + }; + /* + * On imx8mq B0 PLL can't be bypassed so low bus is 166M + */ + opp-166M { + opp-hz = /bits/ 64 <166935483>; + }; + opp-800M { + opp-hz = /bits/ 64 <800000000>; + }; + }; +}; + &fec1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_fec1>; phy-mode = "rgmii-id"; phy-handle = <ðphy0>; diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index 7f9319452b58..d2270e99098e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -1111,11 +1111,22 @@ interrupt-controller; interrupts = ; interrupt-parent = <&gic>; }; - ddr-pmu@3d800000 { + ddrc: dram-controller@3d400000 { + compatible = "fsl,imx8mq-ddrc", "fsl,imx8m-ddrc"; + reg = <0x3d400000 0x400000>; + clock-names = "core", "pll", "alt", "apb"; + clocks = <&clk IMX8MQ_CLK_DRAM_CORE>, + <&clk IMX8MQ_DRAM_PLL_OUT>, + <&clk IMX8MQ_CLK_DRAM_ALT>, + <&clk IMX8MQ_CLK_DRAM_APB>; + devfreq-events = <&ddr_pmu>; + }; + + ddr_pmu: ddr-pmu@3d800000 { compatible = "fsl,imx8mq-ddr-pmu", "fsl,imx8m-ddr-pmu"; reg = <0x3d800000 0x400000>; interrupt-parent = <&gic>; interrupts = ; };