From patchwork Tue Dec 1 13:21:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Agner X-Patchwork-Id: 335252 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8993C83014 for ; Tue, 1 Dec 2020 13:22:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6572E2151B for ; Tue, 1 Dec 2020 13:22:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=agner.ch header.i=@agner.ch header.b="kRE047eW" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727630AbgLANWe (ORCPT ); Tue, 1 Dec 2020 08:22:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729075AbgLANWc (ORCPT ); Tue, 1 Dec 2020 08:22:32 -0500 Received: from mail.kmu-office.ch (mail.kmu-office.ch [IPv6:2a02:418:6a02::a2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5EFEC0617A6; Tue, 1 Dec 2020 05:21:51 -0800 (PST) Received: from allenwind.lan (unknown [IPv6:2a02:169:3df5::979]) by mail.kmu-office.ch (Postfix) with ESMTPSA id DA1E85C2CBC; Tue, 1 Dec 2020 14:21:49 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=agner.ch; s=dkim; t=1606828909; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=z+tlywN731WKb34n3E2K/Io83PN1fHG7CeqNlqmhK4Q=; b=kRE047eW0pF2zMBT4sW+2RtK15SU3sdxl8+ljtI3bb8TAtc6t/0Fie7UP0wHtluHPqzAuW efjAMrjN29jCl52BSt7vae9HJGTMH04Re/CvfVrINvyAAaNKQMQ0ZJiOXuC5Av5J696Bf6 /+IVXKNmOGzS4YE/A+c/qVJ99vpIpXI= From: Stefan Agner To: khilman@baylibre.com Cc: robh+dt@kernel.org, narmstrong@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, christianshewitt@gmail.com, jian.hu@amlogic.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, Stefan Agner Subject: [PATCH v2 5/5] arm64: dts: meson: g12b: w400: fix PHY deassert timing requirements Date: Tue, 1 Dec 2020 14:21:41 +0100 Message-Id: X-Mailer: git-send-email 2.29.2 In-Reply-To: <14754fd95378b78eb9a0a3f8b6bab13f7263c7f1.1606828668.git.stefan@agner.ch> References: <14754fd95378b78eb9a0a3f8b6bab13f7263c7f1.1606828668.git.stefan@agner.ch> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org According to the datasheet (Rev. 1.9) the RTL8211F requires at least 72ms "for internal circuits settling time" before accessing the PHY egisters. On similar boards with the same PHY this fixes an issue where Ethernet link would not come up when using ip link set down/up. Fixes: 2cd2310fca4c ("arm64: dts: meson-g12b-ugoos-am6: add initial device-tree") Signed-off-by: Stefan Agner Reviewed-by: Martin Blumenstingl --- arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi index 2802ddbb83ac..feb088504740 100644 --- a/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-g12b-w400.dtsi @@ -264,7 +264,7 @@ external_phy: ethernet-phy@0 { max-speed = <1000>; reset-assert-us = <10000>; - reset-deassert-us = <30000>; + reset-deassert-us = <80000>; reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; interrupt-parent = <&gpio_intc>;