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SFS:(346002)(136003)(39850400004)(376002)(396003)(366004)(4326008)(83170400001)(6486002)(16526019)(2906002)(7416002)(186003)(2616005)(6916009)(8676002)(956004)(83380400001)(66556008)(42882007)(316002)(66476007)(107886003)(966005)(8936002)(7696005)(66946007)(36756003)(5660300002)(478600001)(26005)(52116002)(6666004); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: sifive.com X-MS-Exchange-CrossTenant-Network-Message-Id: c89d592b-cac0-48f4-4868-08d8858c6d39 X-MS-Exchange-CrossTenant-AuthSource: DM6PR13MB3451.namprd13.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Nov 2020 15:22:24.8190 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: /W1DZmGqHXCFnBfbPd8EB+XKirvyRkExaLHNLCU3XBlrHOAOGtFsbAuBqCOiVVm1a5eaAonyPUsCGH7d92bbDg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR13MB1323 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201110_102227_208229_ACDD23F3 X-CRM114-Status: GOOD ( 13.99 ) X-Spam-Score: 0.1 (/) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (0.1 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [40.107.94.87 listed in list.dnswl.org] -0.0 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2) [40.107.94.87 listed in wl.mailspike.net] 0.2 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level mail domains are different -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.0 MSGID_FROM_MTA_HEADER Message-Id was added by a relay X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, aou@eecs.berkeley.edu, kernel@esmil.dk, anup@brainfault.org, atish.patra@wdc.com, yash.shah@sifive.com, robh+dt@kernel.org, alistair.francis@wdc.com, Sagar Shrikant Kadam , paul.walmsley@sifive.com, palmer@dabbelt.com, linux-riscv@lists.infradead.org Sender: "linux-riscv" Errors-To: linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.org HiFive unleashed A00 board has VSC8541-01 ethernet phy, this device is identified as a Revision B device as described in device identification registers. In order to use this phy in the unmanaged mode, it requires a specific reset sequence of logical 0-1-0-1 transition on the NRESET pin as documented here [1]. Currently, the bootloader (fsbl or u-boot-spl) takes care of the phy reset. If due to some reason the phy device hasn't received the reset by the prior stages before the linux macb driver comes into the picture, the MACB mii bus gets probed but the mdio scan fails and is not even able to read the phy ID registers. It gives an error message: "libphy: MACB_mii_bus: probed mdio_bus 10090000.ethernet-ffffffff: MDIO device at address 0 is missing." Thus adding the device OUI (Organizationally Unique Identifier) to the phy device node helps to probe the phy device. [1]: VSC8541-01 datasheet: https://www.mouser.com/ds/2/523/Microsemi_VSC8541-01_Datasheet_10496_V40-1148034.pdf Signed-off-by: Sagar Shrikant Kadam --- arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts index 4a2729f..60846e8 100644 --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts @@ -88,6 +88,7 @@ phy-mode = "gmii"; phy-handle = <&phy0>; phy0: ethernet-phy@0 { + compatible = "ethernet-phy-id0007.0771"; reg = <0>; }; }; From patchwork Tue Nov 10 15:22:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sagar Shrikant Kadam X-Patchwork-Id: 11894637 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E2DFC16C1 for ; 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Tue, 10 Nov 2020 15:22:27 +0000 From: Sagar Shrikant Kadam To: linux-kernel@vger.kernel.org Subject: [PATCH v2 2/3] dts: phy: add GPIO number and active state used for phy reset Date: Tue, 10 Nov 2020 07:22:11 -0800 Message-Id: <1605021732-268521-3-git-send-email-sagar.kadam@sifive.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1605021732-268521-1-git-send-email-sagar.kadam@sifive.com> References: <1605021732-268521-1-git-send-email-sagar.kadam@sifive.com> X-Originating-IP: [64.62.193.194] X-ClientProxiedBy: BYAPR21CA0005.namprd21.prod.outlook.com (2603:10b6:a03:114::15) To DM6PR13MB3451.namprd13.prod.outlook.com (2603:10b6:5:1c3::10) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from gamma15.internal.sifive.com (64.62.193.194) by BYAPR21CA0005.namprd21.prod.outlook.com (2603:10b6:a03:114::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.20.3589.9 via Frontend Transport; Tue, 10 Nov 2020 15:22:26 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a3b8fad0-30ef-4181-84a6-08d8858c6ea6 X-MS-TrafficTypeDiagnostic: DM5PR13MB1323: X-LD-Processed: 22f88e9d-ae0d-4ed9-b984-cdc9be1529f1,ExtAddr X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2201; 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Add these reset-gpio details to dt-node using which the linux phylib can reset the phy. Signed-off-by: Sagar Shrikant Kadam --- arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts index 60846e8..24d75a1 100644 --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts @@ -90,6 +90,7 @@ phy0: ethernet-phy@0 { compatible = "ethernet-phy-id0007.0771"; reg = <0>; + reset-gpios = <&gpio 12 GPIO_ACTIVE_LOW>; }; }; From patchwork Tue Nov 10 15:22:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sagar Shrikant Kadam X-Patchwork-Id: 11894639 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3C0731744 for ; Tue, 10 Nov 2020 15:22:38 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E9E802076E for ; 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Signed-off-by: Sagar Shrikant Kadam --- arch/riscv/configs/defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index d222d35..8c3d1e4 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -64,6 +64,8 @@ CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_VIRTIO=y CONFIG_SPI=y CONFIG_SPI_SIFIVE=y +CONFIG_GPIOLIB=y +CONFIG_GPIO_SIFIVE=y # CONFIG_PTP_1588_CLOCK is not set CONFIG_POWER_RESET=y CONFIG_DRM=y