From patchwork Wed Feb 28 13:11:22 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Quentin Schulz X-Patchwork-Id: 10247507 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id D3C2160365 for ; Wed, 28 Feb 2018 13:17:53 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C5AAD27FA3 for ; Wed, 28 Feb 2018 13:17:53 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BA4F827852; Wed, 28 Feb 2018 13:17:53 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 2B49927DCD for ; Wed, 28 Feb 2018 13:17:53 +0000 (UTC) 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=NGjjg1u8EAakkqMTP1IAwdBzDb4HhC78P/tqYrF82AY=; b=apnuzJcilt/El5X7kD+jP2A1yC MSeyLcVSpI++GUnCxX959sCSsXVU14B5hPy8C+2M8NuKi3y8QaqtsE8S3pTXfPV7NHHvw/7M7iJRr 2JbTSF9z2vWN+3slX9Z05W1Bqn6MhpqjM3olLjC1Bx2MIhMBU+7iUjO75sTb1Ph/TRuZmnJSWB69V m1NKy0os23MdxuUMW/8GgVVk1+DSYwvK10zmw6SIjZYQ+MFTA+aABcRpMhgFKxXf2u1Su5ejOFnEZ 6ESgfO1UbC/vsE2EdZ9tnziXoZl0H+42kjDzvJXMpsm/oIDOiz1rp1Wy1ZNg+rpo1lEbJxM2ilQNc 6hgrJkrQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1er1c6-0005QR-18; Wed, 28 Feb 2018 13:17:42 +0000 Received: from mail.bootlin.com ([62.4.15.54]) by bombadil.infradead.org with esmtp (Exim 4.89 #1 (Red Hat Linux)) id 1er1Wc-0000rf-0H for linux-arm-kernel@lists.infradead.org; Wed, 28 Feb 2018 13:12:24 +0000 Received: by mail.bootlin.com (Postfix, from userid 110) id 0D1CC20755; Wed, 28 Feb 2018 14:11:49 +0100 (CET) Received: from localhost.localdomain (LStLambert-657-1-97-87.w90-63.abo.wanadoo.fr [90.63.216.87]) by mail.bootlin.com (Postfix) with ESMTPSA id 88D3B20715; Wed, 28 Feb 2018 14:11:48 +0100 (CET) From: Quentin Schulz To: robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk, maxime.ripard@bootlin.com, wens@csie.org Subject: [PATCH 3/3] ARM: dts: sun8i: a83t: add stable OPP tables and CPUfreq Date: Wed, 28 Feb 2018 14:11:22 +0100 Message-Id: <97c8e53f8cc1dbf9f83e147c5296feaa8b463d18.1519823347.git-series.quentin.schulz@bootlin.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: References: In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180228_051203_133511_6070F6B5 X-CRM114-Status: UNSURE ( 9.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Quentin Schulz , linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, thomas.petazzoni@bootlin.com, mylene.josserand@bootlin.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The Allwinner A83T is an octacore A7 divided in two clusters of 4 A7, each cluster having its own regulator and clock. The operating points were found in Allwinner BSP and fex files. Note that there are a few OPPs that are missing: 1608000000Hz with 920000mV 1800000000Hz with 1000000mV 2016000000Hz with 1080000mV These OPPs are pretty unstable but it might be due to the SoC quickly overheating (till the board completely shuts down). It seems impossible to reach those frequencies with none or passive cooling, so better leave them out by default. It's still possible to add those OPPs on a per-board basis though. Signed-off-by: Quentin Schulz --- arch/arm/boot/dts/sun8i-a83t.dtsi | 118 +++++++++++++++++++++++++++++++- 1 file changed, 118 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi index 016d22f..05d5dd7 100644 --- a/arch/arm/boot/dts/sun8i-a83t.dtsi +++ b/arch/arm/boot/dts/sun8i-a83t.dtsi @@ -56,55 +56,173 @@ #address-cells = <1>; #size-cells = <1>; + cpu0_opp_table: opp_table0 { + compatible = "operating-points-v2"; + opp-shared; + + opp-480000000 { + opp-hz = /bits/ 64 <480000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-720000000 { + opp-hz = /bits/ 64 <720000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-864000000 { + opp-hz = /bits/ 64 <864000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-912000000 { + opp-hz = /bits/ 64 <912000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-1008000000 { + opp-hz = /bits/ 64 <1008000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-1128000000 { + opp-hz = /bits/ 64 <1128000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-1200000000 { + opp-hz = /bits/ 64 <1200000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + }; + + cpu1_opp_table: opp_table1 { + compatible = "operating-points-v2"; + opp-shared; + + opp-480000000 { + opp-hz = /bits/ 64 <480000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-600000000 { + opp-hz = /bits/ 64 <600000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-720000000 { + opp-hz = /bits/ 64 <720000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-864000000 { + opp-hz = /bits/ 64 <864000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-912000000 { + opp-hz = /bits/ 64 <912000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-1008000000 { + opp-hz = /bits/ 64 <1008000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-1128000000 { + opp-hz = /bits/ 64 <1128000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + + opp-1200000000 { + opp-hz = /bits/ 64 <1200000000>; + opp-microvolt = <840000>; + clock-latency-ns = <244144>; /* 8 32k periods */ + }; + }; + cpus { #address-cells = <1>; #size-cells = <0>; cpu0: cpu@0 { + clocks = <&ccu CLK_C0CPUX>; + clock-names = "cpu"; compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; reg = <0>; }; cpu@1 { compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; reg = <1>; }; cpu@2 { compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; reg = <2>; }; cpu@3 { compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu0_opp_table>; reg = <3>; }; cpu100: cpu@100 { + clocks = <&ccu CLK_C1CPUX>; + clock-names = "cpu"; compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu1_opp_table>; reg = <0x100>; }; cpu@101 { compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu1_opp_table>; reg = <0x101>; }; cpu@102 { compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu1_opp_table>; reg = <0x102>; }; cpu@103 { compatible = "arm,cortex-a7"; device_type = "cpu"; + operating-points-v2 = <&cpu1_opp_table>; reg = <0x103>; }; };