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Commit 71d9b9db authored by Kranthikumar Kurapati's avatar Kranthikumar Kurapati Committed by Gerrit - the friendly Code Review server
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qseecom: Add full-disk-encrypt-info and per-file-encrypt-info attributes 



To support multiple instances of fde, and pfe, full-disk-encrypt-info
and per-file-encrypt-info attributes are added. These two attributes can
replace legacy attributes of hlos-num-ce-hw-instances, hlos-ce-hw-instance,
disk-encrypt-pipe-pair, file-encrypt-pipe-pair. The legacy attributes are
still supported to maintain the compatibiltity of existing platforms
without changing DT.

Change-Id: I962771870663b35cbdc2217511fb99838736e4c6
Acked-by: default avatarChe-Min Hsieh <cheminh@qti.qualcomm.com>
Signed-off-by: default avatarKranthikumar Kurapati <kkurap@codeaurora.org>
parent 909f1f63

Documentation/devicetree/bindings/qseecom/qseecom.txt

+28 −0
Original line number Diff line number Diff line
@@ -14,6 +14,8 @@ Required properties: 
- qcom, msm_bus,num_paths: The paths for source and destination ports

- qcom, msm_bus,vectors: Vectors for bus topology.

- qcom,ce-opp-freq: indicates the CE operating frequency in Hz, changes from target to target.

- qcom,full-disk-encrypt-info : Vectors defining full disk encryption unit, crypto engine, pipe pair configuration in <unit#, ce#, pipe-pair#>

- qcom,per-file-encrypt-info : Vectors defining per file encryption unit, crypto engine, pipe pair configuration in <unit#, ce#, pipe-pair#>



Optional properties:

  - qcom,support-bus-scaling : indicates if driver support scaling the bus for crypto operation.
@@ -51,3 +53,29 @@ Example: 
		qcom,ce-opp-freq = <100000000>;

		vdd-hba-supply = <&gdsc_ufs>;

	};



Example: The following dts setup is the same as the example above.



	qcom,qseecom@fe806000 {

		compatible = "qcom,qseecom";

		reg = <0x7f00000 0x500000>;

		reg-names = "secapp-region";

		qcom,support-fde;

		qcom,full-disk-encrypt-info = <0 1 2>, <0 2 2>;

		qcom,support-pfe;

		qcom,per-file-encrypt-info = <0 1 0>, <0 2 0>;

		qcom,qsee-ce-hw-instance = <0>;

		qcom,msm_bus,name = "qseecom-noc";

		qcom,msm_bus,num_cases = <4>;

		qcom,msm_bus,active_only = <0>;

		qcom,msm_bus,num_paths = <1>;

		qcom,no-clock-support;

		qcom,appsbl-qseecom-support;

		qcom,msm_bus,vectors =

			<55 512 0 0>,

			<55 512 3936000000 393600000>,

			<55 512 3936000000 393600000>,

			<55 512 3936000000 393600000>;

		qcom,ce-opp-freq = <100000000>;

		vdd-hba-supply = <&gdsc_ufs>;

	};