From patchwork Thu Jun 20 13:47:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Ond=C5=99ej_Jirman?= X-Patchwork-Id: 11006691 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 9AF6876 for ; Thu, 20 Jun 2019 13:48:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 89DDA28770 for ; Thu, 20 Jun 2019 13:48:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7DD0728784; Thu, 20 Jun 2019 13:48:21 +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=-3.4 required=2.0 tests=BAYES_00,DKIM_ADSP_DISCARD, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham 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 1751B28770 for ; Thu, 20 Jun 2019 13:48:20 +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=alZVLhz06TvmfRyDEY2JZB35knbrcnlu3RNJdyHiH5c=; b=bszJnpIGeA0KWx 6P6wLhscJlr0QMmlgSk84JbOLN9RPXcOT6L8Fb6H6qZVWsKK0deqVEoIYl5ZVmjxw6IbUlzrog3Aw DZlQKse3G2P21hig+SIMOz9TWhM9jgNkKLNOFgoJB6Mo6qHxqExLfQZsr9ugMvBrOTMIawrPUgJhN 8EoF+HLbLphyR1u0AQaiVwVMiDPkxhf3C1b3czrpvnF0+gSNl1ne8wgOEmBSQeJLEEbjbt3XIN3pW erhdvO12MVJvscqtHM1XYBUrbVFWDpgSubUl7v8l6GZXSFHeX1pdAYM+DYxRPxQyuw9U8mMwL5jIS G/YpzmrcneQxNl9hyCyw==; 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 1hdxQJ-000264-E4; Thu, 20 Jun 2019 13:48:19 +0000 Received: from vps.xff.cz ([195.181.215.36]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1hdxPw-0001mI-25 for linux-arm-kernel@lists.infradead.org; Thu, 20 Jun 2019 13:47:59 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1561038472; bh=eZIRAtXh9rUuple04Feis2vfaVq0NzLnMtCBPANF3QE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=bAhK2MP3Kh5GZrPNtnMejVPrBMjh8lwMFXb/z7Wbhw1+zyqU4iDdc9WAYTbOC2Wt2 uv8OXEZMSVT1OSeAI5tCGGCAp1Wl4Dj4AqBiDEZF32gUoCD9nSSaiVuHIvdm8ByNQg l87cBKEEK1nkWPsoleFNmDa01nNBQJpjAm1THZ34= From: megous@megous.com To: linux-sunxi@googlegroups.com, Maxime Ripard , Chen-Yu Tsai , Rob Herring , =?utf-8?q?J?= =?utf-8?q?ernej_=C5=A0krabec?= Subject: [PATCH v7 3/6] arm64: dts: allwinner: orange-pi-3: Enable ethernet Date: Thu, 20 Jun 2019 15:47:45 +0200 Message-Id: <20190620134748.17866-4-megous@megous.com> In-Reply-To: <20190620134748.17866-1-megous@megous.com> References: <20190620134748.17866-1-megous@megous.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190620_064756_613365_A6082754 X-CRM114-Status: GOOD ( 11.97 ) 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: Ondrej Jirman , Mark Rutland , Alexandre Torgue , devicetree@vger.kernel.org, David Airlie , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-stm32@st-md-mailman.stormreply.com, Jose Abreu , linux-arm-kernel@lists.infradead.org, Daniel Vetter , Giuseppe Cavallaro , "David S. Miller" , Maxime Coquelin 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 From: Ondrej Jirman Orange Pi 3 has two regulators that power the Realtek RTL8211E. According to the phy datasheet, both regulators need to be enabled at the same time, but we can only specify a single phy-supply in the DT. This can be achieved by making one regulator depedning on the other via vin-supply. While it's not a technically correct description of the hardware, it achieves the purpose. All values of RX/TX delay were tested exhaustively and a middle one of the working values was chosen. Signed-off-by: Ondrej Jirman --- .../dts/allwinner/sun50i-h6-orangepi-3.dts | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts index 17d496990108..2c6807b74ff6 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-orangepi-3.dts @@ -15,6 +15,7 @@ aliases { serial0 = &uart0; + ethernet0 = &emac; }; chosen { @@ -44,6 +45,27 @@ regulator-max-microvolt = <5000000>; regulator-always-on; }; + + /* + * The board uses 2.5V RGMII signalling. Power sequence to enable + * the phy is to enable GMAC-2V5 and GMAC-3V (aldo2) power rails + * at the same time and to wait 100ms. + */ + reg_gmac_2v5: gmac-2v5 { + compatible = "regulator-fixed"; + regulator-name = "gmac-2v5"; + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + startup-delay-us = <100000>; + enable-active-high; + gpio = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */ + + /* The real parent of gmac-2v5 is reg_vcc5v, but we need to + * enable two regulators to power the phy. This is one way + * to achieve that. + */ + vin-supply = <®_aldo2>; /* GMAC-3V */ + }; }; &cpu0 { @@ -58,6 +80,28 @@ status = "okay"; }; +&emac { + pinctrl-names = "default"; + pinctrl-0 = <&ext_rgmii_pins>; + phy-mode = "rgmii"; + phy-handle = <&ext_rgmii_phy>; + phy-supply = <®_gmac_2v5>; + allwinner,rx-delay-ps = <1500>; + allwinner,tx-delay-ps = <700>; + status = "okay"; +}; + +&mdio { + ext_rgmii_phy: ethernet-phy@1 { + compatible = "ethernet-phy-ieee802.3-c22"; + reg = <1>; + + reset-gpios = <&pio 3 14 GPIO_ACTIVE_LOW>; /* PD14 */ + reset-assert-us = <15000>; + reset-deassert-us = <40000>; + }; +}; + &mmc0 { vmmc-supply = <®_cldo1>; cd-gpios = <&pio 5 6 GPIO_ACTIVE_LOW>; /* PF6 */