From patchwork Mon Jul 29 13:26:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11063857 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7AB2914DB for ; Mon, 29 Jul 2019 13:27:48 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6872F20121 for ; Mon, 29 Jul 2019 13:27:48 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5C9512624D; Mon, 29 Jul 2019 13:27:48 +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=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED 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 D3CC0205FD for ; Mon, 29 Jul 2019 13:27:47 +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: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=vrAbyI6kiiw/wuivHfCpWf6iAsj41Usvl+BU15fzYw0=; b=gnr/9HsurwbOqY oCEeAGeF81xZAOlI7yO1rsEofF5sAHSyuV9IG+ECvYPZKYVToM9xLPuiC8P9zGzYkpIdaa0DNRBFi OBf+LG16x/XY0Nhmb26/V6IpqJdtQMaLuHUITaK4HuoPz1PPBsvf6CmiSHNo4mYLkK5Wy6WHFplus RNowmRCjpLmspO5UqgZFjvTuIv1Pjrh+HjRp5GbfTFEngaA2oKGLe1CNhcL0DJp7DXU8RHXhOW01B kadIku8+iIJirzly5uESVzQIBWh2iB9r8z4eULJuU9WPxje649plci9GUzPNYDTpGmaDqBy6MZl/j ISVQDIk3O4jaKF+tA9SA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1hs5gp-0004hs-9l; Mon, 29 Jul 2019 13:27:47 +0000 Received: from mail-wr1-x443.google.com ([2a00:1450:4864:20::443]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hs5fb-0002xf-Ny for linux-amlogic@lists.infradead.org; Mon, 29 Jul 2019 13:26:37 +0000 Received: by mail-wr1-x443.google.com with SMTP id n9so61957280wru.0 for ; Mon, 29 Jul 2019 06:26:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=H599BftyGgZGeuvjylSPb30Ip+K44PQz6UV6QIRWDVA=; b=OFeOg7JgBUV4RUYsWPEYo3tVjVMt4zr3MoUttpQJUKwKE+8z0skTH00a2umzu3bxxM i5qPoI3jqZdagq6pZ7zl8TH2dblrPWgyUYU7BFeg3b6kBf9YohCl1VGNsRrNpddoOm1W ytMZM1U7GVPvMPpMLfOfLAYZd91D6+WquCcVXqSxVrgOj/1nNR2Qk0oRuujmH0WztgE9 v5cDuHocm3L76O/GWoDlwdj6IFlW+5PB6Jvv6Ois5LMj7R/lqOedrREPKmx66UzKgWAX IMeBRGlA9S9FSybigDdxOD4/iaSkQ+HAnSug8auDSxIAclUT1aIllD/N4lOq0gRKsTuJ nGbA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=H599BftyGgZGeuvjylSPb30Ip+K44PQz6UV6QIRWDVA=; b=HjgVJ1O14GLmrl0tbECLRYlnyG3zk9e1C6g+Cq6s9NpZ4Vphl00ZGkWH6Gaxmjcna8 fWxBIKd8GoQJSBP8+no3SL7WL8X0UvwC6axkFeRTIYk9mM/0cTFdqO55DJRKp2GmYrYw xaGbRTYbYovBm0jb+l+WjDeWLdtI3M4iP/SRq2Z3ERy8f3GjwSDKBI/tAF+PFfQtVdHB pWUbIHTJPGMrDFZBWn/oodR6bBgdXOcA3AY6TOfVBPnUsZMBRGeMCTOxbXajROSYGSp9 bIuppZZmi8ovp5n5ylPtyp012Qg9sn2tZGFuNne2Lj1WfcKJ7apNKbwsTSoP0XPPmxcZ VYvA== X-Gm-Message-State: APjAAAU86Ob/vNOlJUn+EBzrFZWp5wvZrfbZp9Tr+dGr0uH4Bxicx6+t srrH1wGoR2d20bloNqiOQgtH7+tTvHs= X-Google-Smtp-Source: APXvYqzHzgVQNRMd2/TlWVqqXU5uIwXTXNY9xqzXhTE2q0wnL1BamjYmmtnUW9iAvDznyFtgqFKR8g== X-Received: by 2002:a5d:518d:: with SMTP id k13mr25880915wrv.40.1564406788248; Mon, 29 Jul 2019 06:26:28 -0700 (PDT) Received: from bender.baylibre.local (lmontsouris-657-1-212-31.w90-63.abo.wanadoo.fr. [90.63.244.31]) by smtp.gmail.com with ESMTPSA id y2sm50270053wrl.4.2019.07.29.06.26.26 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 29 Jul 2019 06:26:27 -0700 (PDT) From: Neil Armstrong To: khilman@baylibre.com Subject: [PATCH 4/6] arm64: dts: meson-g12a: enable DVFS on G12A boards Date: Mon, 29 Jul 2019 15:26:20 +0200 Message-Id: <20190729132622.7566-5-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190729132622.7566-1-narmstrong@baylibre.com> References: <20190729132622.7566-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190729_062631_805478_C6DF7B43 X-CRM114-Status: GOOD ( 11.12 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Martin Blumenstingl , linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Neil Armstrong Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Enable DVFS for the U200, SEI520 and X96-Max Amlogic G12A based board by setting the clock, OPP and supply for each CPU cores. The CPU cluster power supply can achieve 0.73V to 1.01V using a PWM output clocked at 800KHz with an inverse duty-cycle. DVFS has been tested by running the arm64 cpuburn at [1] and cycling between all the possible cpufreq translations and checking the final frequency using the clock-measurer, script at [2]. [1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S [2] https://gist.github.com/superna9999/d4de964dbc0f84b7d527e1df2ddea25f Reviewed-by: Martin Blumenstingl Signed-off-by: Neil Armstrong --- .../boot/dts/amlogic/meson-g12a-sei510.dts | 55 +++++++++++++++++++ .../boot/dts/amlogic/meson-g12a-u200.dts | 54 ++++++++++++++++++ .../boot/dts/amlogic/meson-g12a-x96-max.dts | 52 ++++++++++++++++++ 3 files changed, 161 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts index 12aa7eaeaf68..c9fa23a56562 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts +++ b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts @@ -129,6 +129,25 @@ enable-active-high; }; + vddcpu: regulator-vddcpu { + /* + * SY8120B1ABC DC/DC Regulator. + */ + compatible = "pwm-regulator"; + + regulator-name = "VDDCPU"; + regulator-min-microvolt = <721000>; + regulator-max-microvolt = <1022000>; + + vin-supply = <&dc_in>; + + pwms = <&pwm_AO_cd 1 1250 0>; + pwm-dutycycle-range = <100 0>; + + regulator-boot-on; + regulator-always-on; + }; + vddio_ao1v8: regulator-vddio_ao1v8 { compatible = "regulator-fixed"; regulator-name = "VDDIO_AO1V8"; @@ -297,6 +316,34 @@ status = "okay"; }; +&cpu0 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu1 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu2 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu3 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + &cvbs_vdac_port { cvbs_vdac_out: endpoint { remote-endpoint = <&cvbs_connector_in>; @@ -345,6 +392,14 @@ pinctrl-names = "default"; }; +&pwm_AO_cd { + pinctrl-0 = <&pwm_ao_d_e_pins>; + pinctrl-names = "default"; + clocks = <&xtal>; + clock-names = "clkin1"; + status = "okay"; +}; + &pwm_ef { status = "okay"; pinctrl-0 = <&pwm_e_pins>; diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts index 8551fbd4a488..2a324f0136e3 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts +++ b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts @@ -129,6 +129,24 @@ regulator-always-on; }; + vddcpu: regulator-vddcpu { + /* + * MP8756GD Regulator. + */ + compatible = "pwm-regulator"; + + regulator-name = "VDDCPU"; + regulator-min-microvolt = <721000>; + regulator-max-microvolt = <1022000>; + + vin-supply = <&main_12v>; + + pwms = <&pwm_AO_cd 1 1250 0>; + pwm-dutycycle-range = <100 0>; + + regulator-boot-on; + regulator-always-on; + }; }; &cec_AO { @@ -145,6 +163,34 @@ hdmi-phandle = <&hdmi_tx>; }; +&cpu0 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu1 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu2 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu3 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + &cvbs_vdac_port { cvbs_vdac_out: endpoint { remote-endpoint = <&cvbs_connector_in>; @@ -197,6 +243,14 @@ pinctrl-names = "default"; }; +&pwm_AO_cd { + pinctrl-0 = <&pwm_ao_d_e_pins>; + pinctrl-names = "default"; + clocks = <&xtal>; + clock-names = "clkin1"; + status = "okay"; +}; + /* SD card */ &sd_emmc_b { status = "okay"; diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts index fe4013cca876..c1e58a69d434 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts +++ b/arch/arm64/boot/dts/amlogic/meson-g12a-x96-max.dts @@ -132,6 +132,22 @@ regulator-always-on; }; + vddcpu: regulator-vddcpu { + compatible = "pwm-regulator"; + + regulator-name = "VDDCPU"; + regulator-min-microvolt = <721000>; + regulator-max-microvolt = <1022000>; + + vin-supply = <&dc_in>; + + pwms = <&pwm_AO_cd 1 1250 0>; + pwm-dutycycle-range = <100 0>; + + regulator-boot-on; + regulator-always-on; + }; + sound { compatible = "amlogic,axg-sound-card"; model = "G12A-X96-MAX"; @@ -242,6 +258,34 @@ status = "okay"; }; +&cpu0 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu1 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu2 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + +&cpu3 { + cpu-supply = <&vddcpu>; + operating-points-v2 = <&cpu_opp_table>; + clocks = <&clkc CLKID_CPU_CLK>; + clock-latency = <50000>; +}; + &cvbs_vdac_port { cvbs_vdac_out: endpoint { remote-endpoint = <&cvbs_connector_in>; @@ -279,6 +323,14 @@ pinctrl-names = "default"; }; +&pwm_AO_cd { + pinctrl-0 = <&pwm_ao_d_e_pins>; + pinctrl-names = "default"; + clocks = <&xtal>; + clock-names = "clkin1"; + status = "okay"; +}; + &ext_mdio { external_phy: ethernet-phy@0 { /* Realtek RTL8211F (0x001cc916) */