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Wed, 19 Aug 2026 05:42:49 -0700 (PDT) X-Received: by 2002:ac8:5d08:0:b0:51b:f40b:2faf with SMTP id d75a77b69052e-52dd5cf7f84mr29311281cf.4.1787143369148; Wed, 19 Aug 2026 05:42:49 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c243c38c2fdsm67072866b.45.2026.08.19.05.42.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 Aug 2026 05:42:48 -0700 (PDT) Message-ID: Date: Wed, 19 Aug 2026 14:42:46 +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 v2 2/2] arm64: dts: qcom: ipq5018: Enable MDIO buses and add ethernet PHY To: Luo Jie , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260814-qcom_ipq5018_mdio_pinctrl-v2-0-ff90d6605d61@oss.qualcomm.com> <20260814-qcom_ipq5018_mdio_pinctrl-v2-2-ff90d6605d61@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260814-qcom_ipq5018_mdio_pinctrl-v2-2-ff90d6605d61@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODE5MDA5OCBTYWx0ZWRfXyzSRp4mcheOO rrBhCiUUN2hYROm/dtgR0taRLJ5X/GEwYSko0uv4syfeXd1SDU58GYAl+aVfQIfrS2GoEJnMtSp l7FL5tom3UTbnJSPWye/mBQ/YkZpvgQjAVjGrQINHiA2qBURJdqRTHD0OEtZw+ioAgeF7U+HkIv qf54qenXnGljT+rs2aLZq6W7VHSLiVLj81dSe4LhRUo0sEJbUQGDjfulcB5tY9FJSlPFc/k9Qqd F+brTNd//fdb4Szsiammby+R72Z4xtow5r5Y5KwaK/WVlkCRtxWSWyBjTWhpWff5Jt1QzriDRvt W8TmFQqU8IRU5UCCt7YPeOHSUge4OF1pqhQGhk2c2y7IzTfks8GG/eEV2tBbx9Rtst6PLA1aZTm AVPrgJXpatlexJlu9swkXlA7j+FT0YPFNOGnPlmaodQaLdDty/mJrw1m7SA12MyB685pfNFHofI 9sAhibRMCIhQSozFKig== X-Proofpoint-GUID: q56HMltrpoyf3ihwKCmPsTVJUs0-GMn8 X-Proofpoint-ORIG-GUID: q56HMltrpoyf3ihwKCmPsTVJUs0-GMn8 X-Proofpoint-Spam-Info: AW1haW4tMjYwODE5MDA5OCBTYWx0ZWRfXwXoVySdwl/+u OKeIB+t4Z7CKg/zM6V0BSqiIec9EZ0CopDATvxFso8lv53ru7ym7t82qeHkBaSg4zPVfBa7L16J 4KApi1uquZErriEYtMPFMiJNVCO//B8= X-Authority-Analysis: v=2.4 cv=Sb7HsPRu c=1 sm=1 tr=0 ts=6a85a4ca cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=yv-Pc3QK0v4PSjaF5QAA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-19_03,2026-08-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 bulkscore=0 impostorscore=0 adultscore=0 suspectscore=0 clxscore=1015 lowpriorityscore=0 spamscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608190098 On 8/14/26 4:22 PM, Luo Jie wrote: > Both the internal (mdio0) and external (mdio1) MDIO buses are present > in the SoC dtsi but left disabled at the board level, so the board > currently has no way to talk to PHYs on either bus. > > The RDP432-c2 board uses the SoC-integrated EPHY on mdio0 and an > external QCA8081 PHY on mdio1 for its Ethernet connections. Enable > mdio0 and mdio1 with a 6.25MHz MDIO clock, and describe the QCA8081 > PHY at address 0x1c on mdio1. > > Signed-off-by: Luo Jie > --- > arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts b/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts > index 33eef92b19b1..aed8359b1931 100644 > --- a/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts > +++ b/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts > @@ -30,6 +30,20 @@ &blsp1_uart1 { > status = "okay"; > }; > > +&mdio0 { > + clock-frequency = <6250000>; > + status = "okay"; If the phy is integrated as part of the SoC, is there a reason to not enable this bus by default for all boards? > +}; > + > +&mdio1 { > + clock-frequency = <6250000>; > + status = "okay"; Nit: a newline before status would be neat > + > + ethernet-phy@1c { No compatible string and other properties? Konrad