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Mon, 30 Jun 2025 10:02:01 -0700 (PDT) Received: from [10.67.48.245] ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-b34e32000e5sm8504925a12.67.2025.06.30.10.01.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 30 Jun 2025 10:02:01 -0700 (PDT) Message-ID: Date: Mon, 30 Jun 2025 10:01:59 -0700 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net v3 1/4] net: phy: MII-Lite PHY interface mode To: =?UTF-8?Q?Kamil_Hor=C3=A1k_-_2N?= , bcm-kernel-feedback-list@broadcom.com, andrew@lunn.ch, 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 Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, f.fainelli@gmail.com, robh@kernel.org, andrew+netdev@lunn.ch References: <20250630113033.978455-1-kamilh@axis.com> <20250630113033.978455-2-kamilh@axis.com> Content-Language: en-US From: Florian Fainelli Autocrypt: addr=florian.fainelli@broadcom.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 6/30/25 04:30, Kamil Horák - 2N wrote: > Some Broadcom PHYs are capable to operate in simplified MII mode, > without TXER, RXER, CRS and COL signals as defined for the MII. > The MII-Lite mode can be used on most Ethernet controllers with full > MII interface by just leaving the input signals (RXER, CRS, COL) > inactive. The absence of COL signal makes half-duplex link modes > impossible but does not interfere with BroadR-Reach link modes on > Broadcom PHYs, because they are all full-duplex only. > > Add MII-Lite interface mode, especially for Broadcom two-wire PHYs. > > Signed-off-by: Kamil Horák - 2N Reviewed-by: Florian Fainelli -- Florian