From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from vps0.lunn.ch (vps0.lunn.ch [156.67.10.101]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E2F2E3D548; Mon, 4 Mar 2024 13:24:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=156.67.10.101 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709558691; cv=none; b=HN9YHphlYjD5NJw+NHoSfHsSEmpCcbDy4ujM8zPtESusMk2KALKCdBKGES/HrZFZdJuyHupiqDFiZ3W4CC7jejFAZ0TNuaso6aSl08FCFeqjwSmVfM/Yu95/DDigqkkJJzIrXb7zuQMxw/bUpbHHS4xclEP4ITnEdiR1VqizLRk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709558691; c=relaxed/simple; bh=JO+nK4/XoBa6mHXTNvGm1aZLOHYucf1zl9UOsaMS2bc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ItsesahASWK5ZdXFVdT5spu4fAbKqK0vLnp8WTG/FQyRvgWyXSL94EKiZn2xPqIX0kNdCXhPPL+3NQVNlvncLNcDVxAqbS4m74LFJXawfjxgLPdVN1iCKL/OpUHgOtistYlPlnznsKaXGi8VyMXgdTwmVmOiav4vFpSX5tVqFZE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch; spf=pass smtp.mailfrom=lunn.ch; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b=3a0c/lQC; arc=none smtp.client-ip=156.67.10.101 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=lunn.ch Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=lunn.ch Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="3a0c/lQC" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=nZ20AYDFfavj9F06Wv4gsheOGrFxLruQsYcgyQGjmGo=; b=3a0c/lQCv2CWyKUKbHldWrleLv 7GSKNiaoIZ3B8wMItAcxUWdwHl8A9ZurFDP9vfeMi09onMOlULl8pEOi9I2OQk2wpaSdiB2RmQlkt mgfaml8QKSrHNuep0mdlMtWZyeGMeYhJBAE+LnqcG0Al4RNd4XunaxxuSDxdtRmP2hJc=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1rh8JX-009KEd-Pj; Mon, 04 Mar 2024 14:25:07 +0100 Date: Mon, 4 Mar 2024 14:25:07 +0100 From: Andrew Lunn To: Horatiu Vultur Cc: hkallweit1@gmail.com, linux@armlinux.org.uk, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, wojciech.drewek@intel.com, arun.ramadoss@microchip.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, UNGLinuxDriver@microchip.com Subject: Re: [PATCH net-next v3 2/2] net: phy: micrel: lan8814 cable improvement errata Message-ID: <2bbc2980-ce44-49ab-81b3-dbbaa0829bb7@lunn.ch> References: <20240304091548.1386022-1-horatiu.vultur@microchip.com> <20240304091548.1386022-3-horatiu.vultur@microchip.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: <20240304091548.1386022-3-horatiu.vultur@microchip.com> On Mon, Mar 04, 2024 at 10:15:48AM +0100, Horatiu Vultur wrote: > When the length of the cable is more than 100m and the lan8814 is > configured to run in 1000Base-T Slave then the register of the device > needs to be optimized. > > Workaround this by setting the measure time to a value of 0xb. This > value can be set regardless of the configuration. > > This issue is described in 'LAN8814 Silicon Errata and Data Sheet > Clarification' and according to that, this will not be corrected in a > future silicon revision. > > Reviewed-by: Wojciech Drewek > Signed-off-by: Horatiu Vultur Reviewed-by: Andrew Lunn Andrew