From patchwork Fri Apr 5 23:45:09 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: 10888015 X-Patchwork-Delegate: johannes@sipsolutions.net 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 E3A241515 for ; Fri, 5 Apr 2019 23:52:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CBE2A28B7C for ; Fri, 5 Apr 2019 23:52:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BFE7928B7E; Fri, 5 Apr 2019 23:52:22 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6020D28B7C for ; Fri, 5 Apr 2019 23:52:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726628AbfDEXvq (ORCPT ); Fri, 5 Apr 2019 19:51:46 -0400 Received: from vps.xff.cz ([195.181.215.36]:53634 "EHLO vps.xff.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726352AbfDEXvp (ORCPT ); Fri, 5 Apr 2019 19:51:45 -0400 X-Greylist: delayed 382 seconds by postgrey-1.27 at vger.kernel.org; Fri, 05 Apr 2019 19:51:44 EDT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megous.com; s=mail; t=1554507924; bh=PAJuJoAE0FDcTBQGXPNd5/MCZ/q2/gHxAF4V8V3I9ns=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CbSBObezduiQZ/XIzoAZ1UuxDB8PYzyXBrXEFQof9WNFSz188LQbIcA24+iGIUaRD wzyN/c4mUiT77uHsFe+PPh8zrCdShbQtb6LqLMlLoZy/Tf8MRjZodHAIcpSb7tMfr/ NmCsAx0Ev8nvOvcCkdj3e2Cp2VlFaI5k+ukQBs9s= From: megous@megous.com To: linux-sunxi@googlegroups.com, Maxime Ripard , Chen-Yu Tsai , Rob Herring , Linus Walleij Cc: Ondrej Jirman , David Airlie , Daniel Vetter , Mark Rutland , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , Arend van Spriel , Franky Lin , Hante Meuleman , Chi-Hsien Lin , Wright Feng , Kalle Valo , Naveen Gupta , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, brcm80211-dev-list@cypress.com, linux-gpio@vger.kernel.org Subject: [PATCH 07/12] arm64: dts: allwinner: orange-pi-3: Enable ethernet Date: Sat, 6 Apr 2019 01:45:09 +0200 Message-Id: <20190405234514.6183-8-megous@megous.com> In-Reply-To: <20190405234514.6183-1-megous@megous.com> References: <20190405234514.6183-1-megous@megous.com> MIME-Version: 1.0 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.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 644946749088..5270142527f5 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 { @@ -64,6 +65,27 @@ 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-3V3 (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-3V3 */ + }; }; &cpu0 { @@ -82,6 +104,17 @@ 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"; +}; + &hdmi { ddc-supply = <®_ddc>; status = "okay"; @@ -93,6 +126,17 @@ }; }; +&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 { pinctrl-names = "default"; pinctrl-0 = <&mmc0_pins>;