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Sat, 28 Feb 2026 05:31:45 -0800 (PST) Message-ID: <51c23a3f-08e8-40d4-a015-6501344b75f5@tuxon.dev> Date: Sat, 28 Feb 2026 15:31:44 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v5 4/5] net: cadence: macb: enable EEE for Raspberry Pi RP1 To: Nicolai Buchwitz , netdev@vger.kernel.org Cc: davem@davemloft.net, andrew+netdev@lunn.ch, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux@armlinux.org.uk, nicolas.ferre@microchip.com, linux-kernel@vger.kernel.org, theo.lebrun@bootlin.com, phil@raspberrypi.com References: <20260227150610.242215-1-nb@tipi-net.de> <20260227150610.242215-5-nb@tipi-net.de> Content-Language: en-US From: Claudiu Beznea In-Reply-To: <20260227150610.242215-5-nb@tipi-net.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 2/27/26 17:06, Nicolai Buchwitz wrote: > Set MACB_CAPS_EEE for the Raspberry Pi 5 RP1 southbridge > (Cadence GEM_GXL rev 0x00070109 paired with BCM54213PE PHY). > > EEE has been verified on RP1 hardware: the LPI counter registers > at 0x270-0x27c return valid data, the TXLPIEN bit in NCR (bit 19) > controls LPI transmission correctly, and ethtool --show-eee reports > the negotiated state after link-up. > > Other GEM variants that share the same LPI register layout (SAMA5D2, > SAME70, PIC32CZ) can be enabled by adding MACB_CAPS_EEE to their > respective config entries once tested. > > Reviewed-by: Théo Lebrun > Signed-off-by: Nicolai Buchwitz Reviewed-by: Claudiu Beznea