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 1B3381CAA6D; Fri, 20 Jun 2025 15:20:16 +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=1750432819; cv=none; b=FJeG7Hf8PCP043SSPaR5Z/mZgsh3J+BZrtLXFshUgSa8epeB99zTaIEFI83zk93d6GGoPfAFrWMUfVF9ZYaZodWrIzoApkVYeWUrCOqe52jLTFlmn2V/kswqCzx/ukbONQruVOVp2YS8NQj2vQ1OjTCxftbJtVkm7l/XXebfZfM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750432819; c=relaxed/simple; bh=Bjw4igONTZMN0gbQCYTC4dWBbsRKO814NFvkJmuqDJg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=P1txBpZvyJAfPqK2V0PRrSlRSwd4uSQz890/63vWrL6QzmVmwv1zuXE6s90+GFQtTRNVZKbDpj6xrUcQ2x7ZmR/MtlrQgIVgnfRpM6j/+OTbOsU0iUmg5nlfRYD1+pk+LZ3SzjKnEwlnIgvAooF0Dh3izcyguR8t4fewHnOa1u4= 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=meFjEi4T; 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="meFjEi4T" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Transfer-Encoding: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=wC4XMhb/ugJMHtgboBDIqG7VsfLdmfyiCDLnrrMdqgw=; b=me FjEi4TjbSs2bqGS2UkhmQI6dIPZlDEJQi52eJZ9fRzQinJrdDRref7cOviQ4XhgkNpx9n0+MrHl5Y cMVVW/N+t//bnVy6eCvqXUX45ZpHdLcXnk3AWEauvVkq2dvwdbG1+lFzKjrTSo4KVnB3m9fHPKnTr 3pLyTPjKZgs1W7U=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1uSdX5-00GWJ2-Gq; Fri, 20 Jun 2025 17:19:59 +0200 Date: Fri, 20 Jun 2025 17:19:59 +0200 From: Andrew Lunn To: Kamil =?iso-8859-1?Q?Hor=E1k_=282N=29?= Cc: florian.fainelli@broadcom.com, bcm-kernel-feedback-list@broadcom.com, hkallweit1@gmail.com, linux@armlinux.org.uk, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, krzk+dt@kernel.org, conor+dt@kernel.org, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, robh@kernel.org Subject: Re: [PATCH 2/3] net: phy: bcm5481x: Implement MII-Lite mode Message-ID: References: <20250620134430.1849344-1-kamilh@axis.com> <20250620134430.1849344-2-kamilh@axis.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=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20250620134430.1849344-2-kamilh@axis.com> On Fri, Jun 20, 2025 at 03:44:28PM +0200, Kamil Horák (2N) wrote: > The Broadcom bcm54810 and bcm54811 PHYs are capable to operate in > simplified MII mode, without TXER, RXER, CRS and COL signals as defined > for the MII. While the PHY can be strapped for MII mode, the selection > between MII and MII-Lite must be done by software. Please could you say more about what mii-lite is. Rather than adding a bool DT property, i'm asking myself should we add interface mode for it? Is it a mode of its own? MII normally means Fast Ethernet, 100Mbps. Is that what MII-Lite supports? How does it differ from RMII? Should we be calling this PHY_INTERFACE_MODE_LMII? Andrew