From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f179.google.com (mail-pl1-f179.google.com [209.85.214.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C0D33987D; Sun, 27 Jul 2025 05:57:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753595849; cv=none; b=W05JZrWUxzxIPI2CfxUtTzEJaZaNpNCOLDz6MiUVBsnmdDJJnYjZ8mUFNt9fR9xPrS8F5myN36owzBqqUNeNg0L9U0s6fYXDg9CDVtnwzzaa1HvhnUtpLwpLt1GsUmhNTzrnee+HmBwRwn+8IQ/CxRWmd4AJP6hww+yJr5wX2+0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753595849; c=relaxed/simple; bh=NIkS8EkTTHwRgmQ0qWtztUxiOo+wfB95ULozbE2RB6c=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Q/TkqpjS7ROA00eGmAWcR14SzlBq8MJ1SFQ67VTFtAFnyEBriPiy3yEOWyC5nrVMehlsodrMtYj1tx2yuXYeHLA4ZxlMF3ppVec8WZRkiaUsrcYOpyQM4fyJaJmiwjIY721OJ0PIohBSC0ceJJtBPAubT+jaVkEjP8D/C3UcbUc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=EWyjjdRq; arc=none smtp.client-ip=209.85.214.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="EWyjjdRq" Received: by mail-pl1-f179.google.com with SMTP id d9443c01a7336-236377f00a1so29921365ad.3; Sat, 26 Jul 2025 22:57:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1753595848; x=1754200648; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=ouaLqm1R9pYu2kjb2/unKvQ+wVyFyZBELlahYoTUXkA=; b=EWyjjdRquEzGY1o2Xo99Oz0PNw2FzzWgAjY+2RnjtzoCGO3f3yTDF4TSBcf9Je0Xou 76QswEGCQvECyeqeLOOj2GHbvMu2BnDmSDiITCNDT81eDPsiyfg6owBD718KXVi0hJxp r1qcTihrt3yFLibzhGmRGywX98sGGnjvobbM8eTlLgSnjUKA91iZJjCQbl32AecQwCLi OYwOj8H/nQB/H6OEX+Jv4/90kLxtyeRSTuuZKxeJPXXezMbKIOM+Vgkhg90fMW+Ld7Ah VBlmqGoApSWkGVGH1vwXfrrxCc3cu8hGmisurPoyhgTXwtWUfWH0PZU5HEkDR2a3yxzT 8gnw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1753595848; x=1754200648; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=ouaLqm1R9pYu2kjb2/unKvQ+wVyFyZBELlahYoTUXkA=; b=N7YPfUrf1TBAP2uasHwZqBQZPtR4lLmyw46YTqTnYcYQksOG2TUEZDJbn3w5SKY3Vo Ybp+cLFqxBRo+GxBcfIsbTcdE/4nDu4BxZwSSPV/BhAM36GzxvilYFXw6AN0fr6cJ14O ZzIAQ+p+pdfyhceFGuqYGl1aWtF/o4XOt+HaqW6WZxoMF+zg+XiZ4oRpEUb4DESN5Yfr VSyRNPDj/Va7fopwRg/q34ralzpHnmIvsKarx6fWunS7pGb5bBhMQJZZbJuKy7O0k+JG Yy/ek9r2u39RxJtMI6vuMR9zPTNJL//5rhZmCZkLIPIV49B1w23FPNkBoF8KNJVOXUkF typg== X-Forwarded-Encrypted: i=1; AJvYcCV5toHaUsUpPgD4T3O7+QWx5W3Yt3iLUPygczzYGNX1axXhWqUMVsnnG5KjtrNWFHiONNG8xRTUCNT6MlZk@vger.kernel.org, AJvYcCX0OYTbCujZIkWgOhJhmVTC1CgRIjpDxHaC7iBX7bdU6EruPQxKqdNJYX3efPdHMkNpvMyMVcho+X2M@vger.kernel.org X-Gm-Message-State: AOJu0Yw599o3uRdJpSKlkJBDHJpQ5u0juHdj4ke/u2STh66y01fEwY5c I/B2N9AvMdsr3O4tei9xn2NaTJryWC7taTaZMRrpyOtu+xxttsPvGEBfEFfZbjEf X-Gm-Gg: ASbGncs6z8TfDKSeB9qlwmsP2dox/ujYMdVxdUac1nNl5l8kO9IHjPEced/FZoZ8dqe 0hXwULbSI1GOU4yF2JuNMcFaqZsYVJxFKa1RfoBgdNVE1/b/ugXfKcldQ7F+6SGhTx8hAZ9gcIN BDeX8h7T2ivs83Et9V+XhHYL/MfXtY9o4W+GrPBJx3gXPhkO5SgQWiRFmAKil16wabZAVvubxnq i5loAdDl3WvAWZiWTWrqL4e7xYNJKknPRVemK7/ZB49if+MCv8KdaCq9VULm6u2YAWXWEUiWr5C T/BCL2uSI8E1S7L4c6kmHKI6yoRVPJLP6OsIAKRTAfCiCX0AXcgrvbWMAEIZ2BIUMkyt04kIK3B zGh0CUpYJxWD5nuKiLFGH3V6mUS8E8DEy2LkLz3xkN0FIV3wKfWvFcjbEW2sxn2COvXZnkb2Me3 0= X-Google-Smtp-Source: AGHT+IGq8V6jL0qsxc/xLYXjd9K12nmc3vEi5z4imGq1hQgK/s5MM/Z/wf4Ba/rfxpwQws59Tqe8tQ== X-Received: by 2002:a17:902:ce8e:b0:23f:6fa4:1567 with SMTP id d9443c01a7336-23fb2fefd31mr99604175ad.8.1753595847477; Sat, 26 Jul 2025 22:57:27 -0700 (PDT) Received: from localhost.localdomain (c-76-133-73-115.hsd1.ca.comcast.net. [76.133.73.115]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23fbe30bce5sm28251825ad.27.2025.07.26.22.57.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 26 Jul 2025 22:57:26 -0700 (PDT) Date: Sat, 26 Jul 2025 22:57:24 -0700 From: Tao Ren To: Andrew Lunn Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Joel Stanley , Andrew Jeffery , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Tao Ren Subject: Re: [PATCH v3 10/13] ARM: dts: aspeed: Add Facebook Fuji-data64 (AST2600) Board Message-ID: References: <20250723233013.142337-1-rentao.bupt@gmail.com> <20250723233013.142337-11-rentao.bupt@gmail.com> <769d6817-ee97-4a23-b013-29bc875a00cb@lunn.ch> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Thu, Jul 24, 2025 at 10:18:57PM -0700, Tao Ren wrote: > On Thu, Jul 24, 2025 at 02:53:39PM +0200, Andrew Lunn wrote: > > On Wed, Jul 23, 2025 at 06:03:49PM -0700, Tao Ren wrote: > > > On Thu, Jul 24, 2025 at 02:03:20AM +0200, Andrew Lunn wrote: > > > > > +&mac3 { > > > > > + status = "okay"; > > > > > + phy-mode = "rgmii"; > > > > > > > > Does the PCB have extra long clock lines to implement the 2ns delay? > > > > > > > > Andrew > > > > > > Hi Andrew, > > > > > > Thank you for catching it. I didn't notice the settings because the file > > > is copied from the exiting fuji.dts with minor changes. > > > > > > The delay is currently introduced on MAC side (by manually setting SCU > > > registers), but I guess I can update phy-mode to "rgmii-id" so the delay > > > can be handled by the PHY? > > > > That would be good, if it works. The problem with the current code is > > that those SCU registers are not set as part of the MAC driver, so it > > is hard to know what value they have. > > > > Andrew > > Hi Andrew, > > I set phy-mode to rgmii-id (letting BCM54616S handle RX/TX delay) and > cleared SCU350 (MAC3/4 RGMII delay) register, but somehow BMC is not > reachable over ethernet. > > Let me see if I missed other settings. I will drop the mac entry from v4 > if I cannot make it work by next Monday. Hi Andrew, I made it "work" by updating phy-mode to rgmii-txid, and it seems like AST2600 MAC introduces RX delay even though RXCLK delay setting is 0 in SCU350 register. As I'm not 100% sure where the RX clock delay is introduced, I will drop mac3 entry in v4. Thanks, Tao