From patchwork Tue Dec 1 10:01:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kepplinger X-Patchwork-Id: 335492 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=-13.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable 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 94F38C83011 for ; Tue, 1 Dec 2020 10:10:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5F917206F9 for ; Tue, 1 Dec 2020 10:10:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388758AbgLAKJz (ORCPT ); Tue, 1 Dec 2020 05:09:55 -0500 Received: from comms.puri.sm ([159.203.221.185]:53350 "EHLO comms.puri.sm" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729615AbgLAKJy (ORCPT ); Tue, 1 Dec 2020 05:09:54 -0500 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id 915D9E0399; Tue, 1 Dec 2020 02:02:30 -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 EI_47RiCRfNR; Tue, 1 Dec 2020 02:02:29 -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 Cc: kernel@pengutronix.de, linux-imx@nxp.com, kernel@puri.sm, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Leonard Crestez , Martin Kepplinger Subject: [PATCH 1/6] arm64: dts: imx8m: Add NOC nodes Date: Tue, 1 Dec 2020 11:01:19 +0100 Message-Id: <20201201100124.4676-2-martin.kepplinger@puri.sm> In-Reply-To: <20201201100124.4676-1-martin.kepplinger@puri.sm> References: <20201201100124.4676-1-martin.kepplinger@puri.sm> Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Leonard Crestez Add initial support for dynamic frequency scaling of main NOC. 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 Tested-by: Martin Kepplinger (imx8mq) --- arch/arm64/boot/dts/freescale/imx8mm.dtsi | 22 ++++++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mn.dtsi | 22 ++++++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mq.dtsi | 22 ++++++++++++++++++++++ 3 files changed, 66 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi index c824f2615fe8..835b19f0ea42 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi @@ -921,6 +921,28 @@ }; + noc: interconnect@32700000 { + compatible = "fsl,imx8mm-noc", "fsl,imx8m-noc"; + reg = <0x32700000 0x100000>; + clocks = <&clk IMX8MM_CLK_NOC>; + devfreq = <&ddrc>; + operating-points-v2 = <&noc_opp_table>; + + noc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-150M { + opp-hz = /bits/ 64 <150000000>; + }; + opp-375M { + opp-hz = /bits/ 64 <375000000>; + }; + opp-750M { + opp-hz = /bits/ 64 <750000000>; + }; + }; + }; + aips4: bus@32c00000 { compatible = "fsl,aips-bus", "simple-bus"; reg = <0x32c00000 0x400000>; diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index a06d2a6268e6..8e2d413f97d4 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi @@ -772,6 +772,28 @@ }; + noc: interconnect@32700000 { + compatible = "fsl,imx8mn-noc", "fsl,imx8m-noc"; + reg = <0x32700000 0x100000>; + clocks = <&clk IMX8MN_CLK_NOC>; + devfreq = <&ddrc>; + operating-points-v2 = <&noc_opp_table>; + + noc_opp_table: opp-table { + compatible = "operating-points-v2"; + + opp-100M { + opp-hz = /bits/ 64 <100000000>; + }; + opp-600M { + opp-hz = /bits/ 64 <600000000>; + }; + opp-800M { + opp-hz = /bits/ 64 <800000000>; + }; + }; + }; + aips4: bus@32c00000 { compatible = "fsl,aips-bus", "simple-bus"; reg = <0x32c00000 0x400000>; diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi index a841a023e8e0..d139a46ee8ce 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi @@ -1158,6 +1158,28 @@ }; }; + noc: interconnect@32700000 { + compatible = "fsl,imx8mq-noc", "fsl,imx8m-noc"; + reg = <0x32700000 0x100000>; + clocks = <&clk IMX8MQ_CLK_NOC>; + devfreq = <&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>;