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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 , Konrad Dybcio X-Mailer: b4 0.14.2 X-Authority-Analysis: v=2.4 cv=EoPiaycA c=1 sm=1 tr=0 ts=69fcaed3 cx=c_pps a=JIY1xp/sjQ9K5JH4t62bdg==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=7004nz7suiqLHAzt4fYA:9 a=QEXdDO2ut3YA:10 a=tNoRWFLymzeba-QzToBc:22 X-Proofpoint-ORIG-GUID: FlN5vMtGH2DoSz9E3Zz4J1AOeYMznmmm X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTA3MDE1NCBTYWx0ZWRfXxIpN25xSCadk 1yJjbUdHOxq25uoYW4rd2Yeb2y3bIQD5n5ZAzn/hpQ+sMWZ0EMs+5K9LDBKBQ8uEkMvbdY+Df9e 5huR9qgz5ZZ60WC50/9L5RUM1UkKpOe5TCpRsUcTF1dZ/Z+ioR3KjrsZ4QjBIPE0VdXNPewt4ii 1UHNyyu21CMSSlAIJXpGKEokwpuDjTF7zgVGQ3HkChqlfYesWrR6koo5Kt2zpemoIvobdGcnFXJ IEMBAsecdircazpMJmoV2KdpzmCRbxIUbBnZcvRMeZGUArKxx8vKFrQbQajQqn+UZWOPS84x0av L4F9WrBJMRs5UpFwJPouBnSGZWfR3Jth7bwn3O+KUVUG2MpmfoB1BOMXwKRQlyxqpZ5QC04Yty2 awmKfVb9ecwioVvtR+S2JBnWfN//5gfjwkEGCXYWk3rglE71SYxuwo2x6XR5V32zFu4dZoCe3fN cPLDb1ZXY3cu3IiYu7Q== X-Proofpoint-GUID: FlN5vMtGH2DoSz9E3Zz4J1AOeYMznmmm 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 suspectscore=0 spamscore=0 bulkscore=0 impostorscore=0 lowpriorityscore=0 phishscore=0 malwarescore=0 priorityscore=1501 clxscore=1015 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2605070154 On Arduino Uno-Q, the eMMC boot1 partition is factory provisioned with device-specific information such as the WiFi MAC address and the Bluetooth BD address. This partition can serve as an alternative to additional non-volatile memory, such as a dedicated EEPROM. The eMMC boot partitions are typically good candidates, as they are relatively small, read-only by default (and can be enforced as hardware read-only), and are not affected by board reflashing procedures, which generally target the eMMC user or GP partitions. Describe the corresponding nvmem-layout for the WiFi and Bluetooth addresses, and point the WiFi and Bluetooth nodes to the appropriate NVMEM cells to retrieve them. Signed-off-by: Loic Poulain Reviewed-by: Konrad Dybcio --- arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts index bf088fa9807f040f0c8f405f9111b01790b09377..6ed91cccae2fbf0723629a4db12d2724312d50b2 100644 --- a/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts +++ b/arch/arm64/boot/dts/qcom/qrb2210-arduino-imola.dts @@ -409,7 +409,35 @@ &sdhc_1 { no-sdio; no-sd; + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + card@0 { + compatible = "mmc-card"; + reg = <0>; + + partitions-boot1 { + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + wifi_mac_addr: mac-addr@4400 { + compatible = "mac-base"; + reg = <0x4400 0x6>; + #nvmem-cell-cells = <1>; + }; + + bd_addr: bd-addr@5400 { + compatible = "mac-base"; + reg = <0x5400 0x6>; + #nvmem-cell-cells = <1>; + }; + }; + }; + }; }; &spi5 { @@ -512,6 +540,9 @@ bluetooth { vddch0-supply = <&pm4125_l22>; enable-gpios = <&tlmm 87 GPIO_ACTIVE_HIGH>; max-speed = <3000000>; + + nvmem-cells = <&bd_addr 0>; + nvmem-cell-names = "local-bd-address"; }; }; @@ -557,6 +588,9 @@ &wifi { qcom,ath10k-calibration-variant = "ArduinoImola"; firmware-name = "qcm2290"; + nvmem-cells = <&wifi_mac_addr 0>; + nvmem-cell-names = "mac-address"; + status = "okay"; }; -- 2.34.1