From patchwork Thu Mar 14 12:20:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?QXLEsW7DpyDDnE5BTCB2aWEgQjQgUmVsYXk=?= X-Patchwork-Id: 13592388 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C40F9C5475B for ; Thu, 14 Mar 2024 12:20:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:Reply-To:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References: Message-Id:MIME-Version:Subject:Date:From:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=JHHgpypktrW9kR24+tE1nHKjYVhI5JcS2YOfZA8fX0Y=; b=L3yhszelJ1AUvY ZpvOfyntnN6fjUhUm7B9a34yibar7OZOdfs/C0ELSuLqwT6SABAM4OhvBzA3PQTKzv/RuaqbOEJWb +5QuGxMl27yjEnHQG01eXV/g2EGrmbGUeeY8TBkiiQx27v2AqkSCwGjcZino1iWMzS0IJ9lyVZn5o hRy+hLrK11r8dXOpVQQke9tJ+uejB4oWIWk2abgKv7Jj3HcH+PFIcjMpERhaLGVdchBTKpHCjn3mw asE/Nv30sS2+9EkBifF6T1zZjTfOpiorV3rvg05wp+kgIf+JpuKplesBBoLsHCedNSfbRTC/jSUCL vc9+JAsSZ17H9/Vxp9Tw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rkk4f-0000000EDOd-22mi; Thu, 14 Mar 2024 12:20:41 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rkk4Y-0000000EDLH-3p7s; Thu, 14 Mar 2024 12:20:36 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id C21026163E; Thu, 14 Mar 2024 12:20:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 68B0AC433F1; Thu, 14 Mar 2024 12:20:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1710418833; bh=IXwjfXG0qJTi6SvXy2YJc8p2iUQs4kEjF2r+M9G6w38=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=ilWTQOqJCS0XZl06YmEiYlkl0uVFfItkJRPuN48+KseuhrBHloWj+8uvs2g3sch9N zARb4qqxkcwwlkGtAmbfPr9KblhESLYIFhEgD7ZXQlQr5r6ig2qIlDAMt8yUO/8GXS bSt5IGnSsDvJXQMWi1EIg3lTNXbTAnVxO5fUHmD0w/DaLxppbYvvQ9XEKmbLrMqkgG xX4ntIwCzCiZKzhnv6EXtK1C86W2YOtsncAmDEfMKq70fVya6+XxwIBeQPTmP6dGfU 9bhfpFLOSKiGcbddJalArV0WRqWRM8zsRRJdK7UUjr3mSm0j05D2+GQlrCJS1UTlFA Jdnn9QOrHhfQQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5A8B0C54E67; Thu, 14 Mar 2024 12:20:33 +0000 (UTC) From: =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= via B4 Relay Date: Thu, 14 Mar 2024 15:20:04 +0300 Subject: [PATCH 1/2] arm64: dts: mediatek: mt7622: set PHY address of MT7531 switch to 0x1f MIME-Version: 1.0 Message-Id: <20240314-for-mediatek-mt7531-phy-address-v1-1-52f58db01acd@arinc9.com> References: <20240314-for-mediatek-mt7531-phy-address-v1-0-52f58db01acd@arinc9.com> In-Reply-To: <20240314-for-mediatek-mt7531-phy-address-v1-0-52f58db01acd@arinc9.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno Cc: mithat.guner@xeront.com, erkin.bozoglu@xeront.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1710418818; l=1766; i=arinc.unal@arinc9.com; s=arinc9-patatt; h=from:subject:message-id; bh=MsMYU0TxWWTBU66KZyBJipAujGDLpPEL4caKiInP0uA=; b=bE8w4jzb7bYQAt6bDoKuVeYIQ298ZArPNyXnvaNKtmYEAdgOepcrRbnjuiqj8FRr3Uk/rrmyL geOZd1Sbuj9A8Ea0iWmdUuG4z5fEyLd8BsvREEhr7/BDP1N9ij0SF5X X-Developer-Key: i=arinc.unal@arinc9.com; a=ed25519; pk=VmvgMWwm73yVIrlyJYvGtnXkQJy9CvbaeEqPQO9Z4kA= X-Endpoint-Received: by B4 Relay for arinc.unal@arinc9.com/arinc9-patatt with auth_id=115 X-Original-From: =?utf-8?b?QXLEsW7DpyDDnE5BTA==?= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240314_052035_144184_660ECCAE X-CRM114-Status: GOOD ( 12.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: arinc.unal@arinc9.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Arınç ÜNAL The MT7531 switch listens on PHY address 0x1f on an MDIO bus. I've got two findings that support this. There's no bootstrapping option to change the PHY address of the switch. The Linux driver hardcodes 0x1f as the PHY address of the switch. So the reg property on the device tree is currently ignored by the Linux driver. Therefore, describe the correct PHY address on boards that have this switch. Signed-off-by: Arınç ÜNAL --- arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts | 4 ++-- arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts index 224bb289660c..811b227d6f50 100644 --- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts +++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts @@ -149,9 +149,9 @@ mdio: mdio-bus { #address-cells = <1>; #size-cells = <0>; - switch@0 { + switch@1f { compatible = "mediatek,mt7531"; - reg = <0>; + reg = <0x1f>; interrupt-controller; #interrupt-cells = <1>; interrupts-extended = <&pio 53 IRQ_TYPE_LEVEL_HIGH>; diff --git a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts index 41629769bdc8..3c2423cb38fd 100644 --- a/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts +++ b/arch/arm64/boot/dts/mediatek/mt7622-rfb1.dts @@ -134,9 +134,9 @@ mdio-bus { #address-cells = <1>; #size-cells = <0>; - switch@0 { + switch@1f { compatible = "mediatek,mt7531"; - reg = <0>; + reg = <0x1f>; reset-gpios = <&pio 54 0>; ports {