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[76.133.73.115]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-23fa48f04afsm2229035ad.163.2025.07.23.18.03.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Jul 2025 18:03:52 -0700 (PDT) Date: Wed, 23 Jul 2025 18:03:49 -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> Precedence: bulk X-Mailing-List: linux-kernel@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 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? Thanks, Tao