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[2003:f1:373a:1900:428d:5cff:feb9:9db8]) by smtp.googlemail.com with ESMTPSA id e18sm26034448wrw.70.2019.12.24.16.57.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Dec 2019 16:57:54 -0800 (PST) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, netdev@vger.kernel.org, davem@davemloft.net, khilman@baylibre.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, balbes-150@yandex.ru, ingrassia@epigenesys.com, jbrunet@baylibre.com, linus.luessing@c0d3.blue, Martin Blumenstingl Subject: [PATCH 2/3] ARM: dts: meson8b: odroidc1: use the same RGMII TX delay as u-boot Date: Wed, 25 Dec 2019 01:56:54 +0100 Message-Id: <20191225005655.1502037-3-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191225005655.1502037-1-martin.blumenstingl@googlemail.com> References: <20191225005655.1502037-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Due to a bug in the MPLL2 clock setup (which is used as input for the RGMII TX clock) a TX delay of 2ns did not work previously. With a TX delay of 4ns Ethernet worked enough to get an IP via DHCP but there was still high packet loss when transmitting data. Update the TX delay to 2ns - which is the same value that u-boot and the vendor kernel use - to fix the packet loss when transmitting data. Fixes: 9c15795a4f96cb ("ARM: dts: meson8b-odroidc1: ethernet support") Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson8b-odroidc1.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts index a2a47804fc4a..e2ba2d66d8d9 100644 --- a/arch/arm/boot/dts/meson8b-odroidc1.dts +++ b/arch/arm/boot/dts/meson8b-odroidc1.dts @@ -204,7 +204,7 @@ ðmac { phy-mode = "rgmii"; phy-handle = <ð_phy>; - amlogic,tx-delay-ns = <4>; + amlogic,tx-delay-ns = <2>; nvmem-cells = <ðernet_mac_address>; nvmem-cell-names = "mac-address"; -- 2.24.1 From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 14DD8C2D0C3 for ; 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[2003:f1:373a:1900:428d:5cff:feb9:9db8]) by smtp.googlemail.com with ESMTPSA id e18sm26034448wrw.70.2019.12.24.16.57.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Dec 2019 16:57:54 -0800 (PST) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, netdev@vger.kernel.org, davem@davemloft.net, khilman@baylibre.com Subject: [PATCH 2/3] ARM: dts: meson8b: odroidc1: use the same RGMII TX delay as u-boot Date: Wed, 25 Dec 2019 01:56:54 +0100 Message-Id: <20191225005655.1502037-3-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191225005655.1502037-1-martin.blumenstingl@googlemail.com> References: <20191225005655.1502037-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191224_165756_629118_93DA86C0 X-CRM114-Status: GOOD ( 13.39 ) 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: linus.luessing@c0d3.blue, balbes-150@yandex.ru, linux-kernel@vger.kernel.org, Martin Blumenstingl , linux-arm-kernel@lists.infradead.org, ingrassia@epigenesys.com, jbrunet@baylibre.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Due to a bug in the MPLL2 clock setup (which is used as input for the RGMII TX clock) a TX delay of 2ns did not work previously. With a TX delay of 4ns Ethernet worked enough to get an IP via DHCP but there was still high packet loss when transmitting data. Update the TX delay to 2ns - which is the same value that u-boot and the vendor kernel use - to fix the packet loss when transmitting data. Fixes: 9c15795a4f96cb ("ARM: dts: meson8b-odroidc1: ethernet support") Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson8b-odroidc1.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts index a2a47804fc4a..e2ba2d66d8d9 100644 --- a/arch/arm/boot/dts/meson8b-odroidc1.dts +++ b/arch/arm/boot/dts/meson8b-odroidc1.dts @@ -204,7 +204,7 @@ ðmac { phy-mode = "rgmii"; phy-handle = <ð_phy>; - amlogic,tx-delay-ns = <4>; + amlogic,tx-delay-ns = <2>; nvmem-cells = <ðernet_mac_address>; nvmem-cell-names = "mac-address"; -- 2.24.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 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=-9.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 08B69C2D0C3 for ; 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[2003:f1:373a:1900:428d:5cff:feb9:9db8]) by smtp.googlemail.com with ESMTPSA id e18sm26034448wrw.70.2019.12.24.16.57.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Dec 2019 16:57:54 -0800 (PST) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, netdev@vger.kernel.org, davem@davemloft.net, khilman@baylibre.com Subject: [PATCH 2/3] ARM: dts: meson8b: odroidc1: use the same RGMII TX delay as u-boot Date: Wed, 25 Dec 2019 01:56:54 +0100 Message-Id: <20191225005655.1502037-3-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191225005655.1502037-1-martin.blumenstingl@googlemail.com> References: <20191225005655.1502037-1-martin.blumenstingl@googlemail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191224_165756_629118_93DA86C0 X-CRM114-Status: GOOD ( 13.39 ) 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: linus.luessing@c0d3.blue, balbes-150@yandex.ru, linux-kernel@vger.kernel.org, Martin Blumenstingl , linux-arm-kernel@lists.infradead.org, ingrassia@epigenesys.com, jbrunet@baylibre.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Due to a bug in the MPLL2 clock setup (which is used as input for the RGMII TX clock) a TX delay of 2ns did not work previously. With a TX delay of 4ns Ethernet worked enough to get an IP via DHCP but there was still high packet loss when transmitting data. Update the TX delay to 2ns - which is the same value that u-boot and the vendor kernel use - to fix the packet loss when transmitting data. Fixes: 9c15795a4f96cb ("ARM: dts: meson8b-odroidc1: ethernet support") Signed-off-by: Martin Blumenstingl --- arch/arm/boot/dts/meson8b-odroidc1.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts index a2a47804fc4a..e2ba2d66d8d9 100644 --- a/arch/arm/boot/dts/meson8b-odroidc1.dts +++ b/arch/arm/boot/dts/meson8b-odroidc1.dts @@ -204,7 +204,7 @@ ðmac { phy-mode = "rgmii"; phy-handle = <ð_phy>; - amlogic,tx-delay-ns = <4>; + amlogic,tx-delay-ns = <2>; nvmem-cells = <ðernet_mac_address>; nvmem-cell-names = "mac-address"; -- 2.24.1 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic