From patchwork Thu Jun 20 15:00:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11007083 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 7591514E5 for ; Thu, 20 Jun 2019 15:06:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 64CF528841 for ; Thu, 20 Jun 2019 15:06:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5917528862; Thu, 20 Jun 2019 15:06:11 +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 D494128841 for ; Thu, 20 Jun 2019 15:06:10 +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=izJtiicVwu9EXKwbBpbugZO8Ap/rjU9anmSj7BDOLJc=; b=HI7ZG5cE02oato lHsxYZz0ooImC5C2xsMcD+A+e3wst4y/0OgunGmoYacw1J2S5WNpIURNGcMalDApoyoFY9OQ/W99Z xtYse1Qvs7FnXGY/WKwAaychTFh+YEiYoXN0BtRttb9PxAtIZa5OYNglBDCO+aVlonn0aoEKVYxd+ H1l3WdMaLSkxcsjSDZm5cR371jXdG3tC0LMfNldYclHAxXMVDbLK3j4IOuEJ3iYem4F4dQgcLgwka qglfwtRF8Rnf8OPc8zmtzXwivTIMo7YST3rl/40xepXPXq2XzXyQyZOkEpxk6gpqsOHn4J+PBbjYT F5ZBn2eUz5IYpvuCVBFw==; 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 1hdyde-0000Pl-Bl; Thu, 20 Jun 2019 15:06:10 +0000 Received: from mail-wr1-x42e.google.com ([2a00:1450:4864:20::42e]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hdyYG-0003J1-1v for linux-amlogic@lists.infradead.org; Thu, 20 Jun 2019 15:00:41 +0000 Received: by mail-wr1-x42e.google.com with SMTP id v14so3392940wrr.4 for ; Thu, 20 Jun 2019 08:00:35 -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=N2giQ2yIsAWn8MusPqgS1CP/DkqViRRuAeJS4LgppK4=; b=b+LXYfMJu8K3Irv+z9mH0+qqqhmw6l1ehg+Q35v6Z88zfJG1MOwscikQRxJh2njG4h WVzqtKd2aNO45HKxR7zXGNDOBYsvcURb2Un5PaXRJxB2sZI+M+6ns3+HXteJGNxoR4QD Igtbd+g2i4atWlx+tudsnSlm0177tLf1vM11HIZ5u1ymg8sRxUW8PdliGw6s62tFIm4m iG3L6EDDuwCh+LiAWnJqlJoO4pj8TdVbl4VWxYqLYTn60qxHgSrNlivcZf1nz1Xr/Uz3 OkSyYR+uuP8IQR1ixGDubknJlis/XNMdSD7/j0SVHd6+KD0/FJxAX0mXgvfKw/PW8+lW KNXA== 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=N2giQ2yIsAWn8MusPqgS1CP/DkqViRRuAeJS4LgppK4=; b=nxxkE4RiMTKyWMwI+57WMzao8AkyHMseHcAzcjQZjxWB/G/Rru3LUQZGZqwTRLSUFo IVf/ZFTEnwRPO5iPVv/A+qeibWw9OKc2Oj0MkGlI6Rbv2dxBQVQf5hGb8d+tHlEpllmv QWZDwgsIadvlyciL3B9oQDde9mgvFN1k1ICB2h8cPg5fTt8AGCqtPlZa7s8ZYzSxlmgN 2wkifGBat5LEnZ9+5y7IUO3LxkBxo6ggvxT7PrM8Qj6SD/0PP9ZD8BZ8z588DMUAUYtB 8b2DSD/KkIC+haU9G5guTWiTGItXI7glJ+BA78QsflO14kSEvIeZjY05Ae2Wxr83+wsA H8nQ== X-Gm-Message-State: APjAAAUrFD5r1lXixXLx7/eVS8cQpfinoo+3CBEGxEO3jbZ7exzw1zvI z152kL57iMq6Sp90DXsrENHiGQ== X-Google-Smtp-Source: APXvYqzhqvyJ4VQuHIxn4osbb6I0R4V3URcLiMgyiJwat+YLcIUOsZ5a2Urq9TgAy8NkI7wsnA/ceg== X-Received: by 2002:a5d:494d:: with SMTP id r13mr5374600wrs.152.1561042834101; Thu, 20 Jun 2019 08:00:34 -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 o126sm6802520wmo.1.2019.06.20.08.00.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 20 Jun 2019 08:00:33 -0700 (PDT) From: Neil Armstrong To: jbrunet@baylibre.com, khilman@baylibre.com Subject: [RFC/RFT 12/14] arm64: dts: meson-g12a: enable DVFS on G12A boards Date: Thu, 20 Jun 2019 17:00:11 +0200 Message-Id: <20190620150013.13462-13-narmstrong@baylibre.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190620150013.13462-1-narmstrong@baylibre.com> References: <20190620150013.13462-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190620_080036_152609_0618D2B7 X-CRM114-Status: GOOD ( 11.89 ) 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: Neil Armstrong , martin.blumenstingl@googlemail.com, linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org 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 Signed-off-by: Neil Armstrong --- .../boot/dts/amlogic/meson-g12a-sei510.dts | 55 +++++++++++++++++++ .../boot/dts/amlogic/meson-g12a-u200.dts | 55 +++++++++++++++++++ .../boot/dts/amlogic/meson-g12a-x96-max.dts | 52 ++++++++++++++++++ 3 files changed, 162 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts b/arch/arm64/boot/dts/amlogic/meson-g12a-sei510.dts index bd26b35102ff..be45437c51e1 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>; @@ -339,6 +386,14 @@ 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 332a4b27174b..b6bd96ee394a 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts +++ b/arch/arm64/boot/dts/amlogic/meson-g12a-u200.dts @@ -136,6 +136,25 @@ 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; + }; + sound { compatible = "amlogic,axg-sound-card"; model = "G12A-U200"; @@ -305,6 +324,34 @@ 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>; @@ -369,6 +416,14 @@ 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 d37868d21114..099ccf67547e 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) */