Re: [PATCH v4] arm64: dts: qcom: x1e80100: Add crypto engine

[Harshal Dev]

On 12/9/2025 1:09 PM, Dmitry Baryshkov wrote:
> On Tue, Dec 09, 2025 at 12:57:29PM +0530, Harshal Dev wrote:
>> Hi,
>>
>> On 12/8/2025 9:26 PM, Konrad Dybcio wrote:
>>> On 12/8/25 1:32 PM, Harshal Dev wrote:
>>>> On X Elite, there is a crypto engine IP block similar to ones found on
>>>> SM8x50 platforms.
>>>>
>>>> Describe the crypto engine and its BAM.
>>>>
>>>> Signed-off-by: Harshal Dev <harshal.dev@xxxxxxxxxxxxxxxx>
>>>> ---
>>>> The dt-binding schema update for the x1e80100 compatible is here
>>>> (already merged):
>>>>     
>>>> https://lore.kernel.org/all/20250213-dt-bindings-qcom-qce-x1e80100-v1-1-d17ef73a1c12@xxxxxxxxxx/
>>>> ---
>>>
>>>
>>>> +		cryptobam: dma-controller@1dc4000 {
>>>> +			compatible = "qcom,bam-v1.7.4", "qcom,bam-v1.7.0";
>>>> +			reg = <0x0 0x01dc4000 0x0 0x28000>;
>>>> +			interrupts = <GIC_SPI 272 IRQ_TYPE_LEVEL_HIGH>;
>>>> +			#dma-cells = <1>;
>>>> +			iommus = <&apps_smmu 0x480 0x0>,
>>>> +				 <&apps_smmu 0x481 0x0>;
>>>> +			qcom,ee = <0>;
>>>> +			qcom,controlled-remotely;
>>>> +			num-channels = <20>;
>>>> +			qcom,num-ees = <4>;
>>>> +		};
>>>> +
>>>> +		crypto: crypto@1dfa000 {
>>>> +			compatible = "qcom,x1e80100-qce", "qcom,sm8150-qce", "qcom,qce";
>>>> +			reg = <0x0 0x01dfa000 0x0 0x6000>;
>>>> +			dmas = <&cryptobam 4>, <&cryptobam 5>;
>>>> +			dma-names = "rx",
>>>> +				    "tx";
>>>> +			iommus = <&apps_smmu 0x480 0x0>,
>>>> +				 <&apps_smmu 0x481 0x0>;
>>>> +			interconnects = <&aggre2_noc MASTER_CRYPTO QCOM_ICC_TAG_ALWAYS
>>>> +					 &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>;
>>>> +			interconnect-names = "memory";
>>>> +		};
>>>> +
>>>>  		cnoc_main: interconnect@1500000 {
>>>
>>> Right as I hit enter for the rb message, I noticed the nodes you're
>>> adding are not sorted - please sort them wrt the unit address (@foo)
>>> and retain my tag then
>>>
>>
>> Not sure if I understand you Konrad.. I believe the nodes are already sorted
>> since address (crypto) @1dfa000 > address (cryptobam) @1dc4000? Do let me know what
>> I'm missing.
> 
> 0x01dfa000 > 0x1500000, so no, your nodes are not properly sorted.
> 

Thank you for spotting this folks. I realize that the sorting was correct in v1 of the patch
from Abel. I will revert back to that.

Thanks!
Harshal

>>
>> Thanks,
>> Harshal
>>  
>>> Konrad
>>
>