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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Srinivas Kandagatla , Andrew Lunn , Heiner Kallweit , Russell King , Saravana Kannan Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-block@vger.kernel.org, linux-wireless@vger.kernel.org, ath10k@lists.infradead.org, linux-bluetooth@vger.kernel.org, netdev@vger.kernel.org, daniel@makrotopia.org, Loic Poulain X-Mailer: b4 0.14.2 X-Proofpoint-ORIG-GUID: RMtVAPZ5FvAgDS8LS4VFXkoXCEsl-wSX X-Authority-Analysis: v=2.4 cv=SJVykuvH c=1 sm=1 tr=0 ts=69fcaec0 cx=c_pps a=DUEm7b3gzWu7BqY5nP7+9g==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=hFPe-bIbDLvfECHHD4sA:9 a=QEXdDO2ut3YA:10 a=-aSRE8QhW-JAV6biHavz:22 X-Proofpoint-GUID: RMtVAPZ5FvAgDS8LS4VFXkoXCEsl-wSX X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA3MDE1NCBTYWx0ZWRfX23oBx3igFeoZ Tva9UAfqx8P3hw9aZyDd/7to8lO8jVMZmeRk7y9PHpAyXO4bVSFJq1NEctsIo8y86EkL/0D5emr scofKuCVcJkl4XCRuGIOfYEQw4bZGVbQSLTDsdPwZDqJm7LeKYtrsVnHTSo7Aox5r5pv3++o5bj bOHNA436ZzuWv+yHTx4qHheLmEBsc77bd11kotnGjOAo4N7OLd+8yDrsoC9R9I4aCou7VNMyBXx BZMJaxpZ0oSFkIwwsZ6gsUqZlu8Xdknp9LQgdNdnxWyeKuNUZw+4r31SV+Dq2e9WNF5Kg0klkgi dEU1t9R2PBzywI1mDvxIKOTSNJmBQIC4uVpqqdJXr1a+xBpSuc6zyCbsNlPk17YmR92sRarwoZ8 uc+ieT7S9XvR2UXTanzotSa/vdKEb8CmGEd9qPigOToPF86S+yC5yFIYr9dHzi4kuFI9GBqJ0kk XpaTaWhgUReCIGOwxcQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-07_01,2026-05-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 suspectscore=0 lowpriorityscore=0 impostorscore=0 bulkscore=0 adultscore=0 malwarescore=0 spamscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605070154 Add support for an nvmem-layout subnode under an eMMC hardware partition. This allows the partition to be exposed as an NVMEM provider and its internal layout to be described. For example, an eMMC boot partition can be used to store device-specific information such as a WiFi MAC address. Signed-off-by: Loic Poulain --- .../devicetree/bindings/mmc/mmc-card.yaml | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/Documentation/devicetree/bindings/mmc/mmc-card.yaml b/Documentation/devicetree/bindings/mmc/mmc-card.yaml index a61d6c96df759102f9c1fbfd548b026a77921cae..b21426a49cf1d9aae5b4e8e447b5be11b08c96bf 100644 --- a/Documentation/devicetree/bindings/mmc/mmc-card.yaml +++ b/Documentation/devicetree/bindings/mmc/mmc-card.yaml @@ -40,6 +40,9 @@ patternProperties: contains: const: fixed-partitions + nvmem-layout: + $ref: /schemas/nvmem/layouts/nvmem-layout.yaml + required: - compatible - reg @@ -86,6 +89,27 @@ examples: read-only; }; }; + + partitions-boot2 { + nvmem-layout { + compatible = "fixed-layout"; + + #address-cells = <1>; + #size-cells = <1>; + + mac-addr@4400 { + compatible = "mac-base"; + reg = <0x4400 0x6>; + #nvmem-cell-cells = <1>; + }; + + bd-addr@5400 { + compatible = "mac-base"; + reg = <0x5400 0x6>; + #nvmem-cell-cells = <1>; + }; + }; + }; }; }; -- 2.34.1