Re: [PATCH v2 5/6] arm64: dts: qcom: ipq5018: add nodes required for Bluetooth support

[Konrad Dybcio]

On 6/30/26 2:09 PM, George Moussalem wrote:
> On 6/30/26 15:40, Konrad Dybcio wrote:
>> On 6/29/26 3:01 PM, George Moussalem via B4 Relay wrote:
>>> From: George Moussalem <george.moussalem@xxxxxxxxxxx>
>>>
>>> Add nodes for the reserved memory carveout and Bluetooth.
>>>
>>> Signed-off-by: George Moussalem <george.moussalem@xxxxxxxxxxx>
>>> ---
>>>  arch/arm64/boot/dts/qcom/ipq5018.dtsi | 25 ++++++++++++++++++++++++-
>>>  1 file changed, 24 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/ipq5018.dtsi b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
>>> index 6f8004a22a1f..65a47ba7d3a3 100644
>>> --- a/arch/arm64/boot/dts/qcom/ipq5018.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/ipq5018.dtsi
>>> @@ -17,6 +17,23 @@ / {
>>>  	#address-cells = <2>;
>>>  	#size-cells = <2>;
>>>  
>>> +	bluetooth: bluetooth {
>>> +		compatible = "qcom,ipq5018-bt";
>>> +
>>> +		firmware-name = "qca/bt_fw_patch.mbn";
>>
>> Is this fw vendor-signed?
> 
> I've just analyzed the mbn file (and the mdt + b0x files): it only
> contains hashes for the mdt and b02 segments, no signature/certs at all.
> I've used your pil squasher to create the mbn file. Here are the FW files:
> https://github.com/georgemoussalem/openwrt/tree/ipq50xx-bluetooth/package/firmware/qca-bt-firmware/files
> 
> Perhaps you can double check?

Using the not very sophisticated but very quick method of running
strings on it, there's no certificate identifiers indeed

Konrad