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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
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treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/firmware/qcom,scm.txt
parentInitial commit. (diff)
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Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+QCOM Secure Channel Manager (SCM)
+
+Qualcomm processors include an interface to communicate to the secure firmware.
+This interface allows for clients to request different types of actions. These
+can include CPU power up/down, HDCP requests, loading of firmware, and other
+assorted actions.
+
+Required properties:
+- compatible: must contain one of the following:
+ * "qcom,scm-apq8064"
+ * "qcom,scm-apq8084"
+ * "qcom,scm-ipq4019"
+ * "qcom,scm-ipq806x"
+ * "qcom,scm-ipq8074"
+ * "qcom,scm-msm8660"
+ * "qcom,scm-msm8916"
+ * "qcom,scm-msm8960"
+ * "qcom,scm-msm8974"
+ * "qcom,scm-msm8994"
+ * "qcom,scm-msm8996"
+ * "qcom,scm-msm8998"
+ * "qcom,scm-sc7180"
+ * "qcom,scm-sdm845"
+ * "qcom,scm-sm8150"
+ and:
+ * "qcom,scm"
+- clocks: Specifies clocks needed by the SCM interface, if any:
+ * core clock required for "qcom,scm-apq8064", "qcom,scm-msm8660" and
+ "qcom,scm-msm8960"
+ * core, iface and bus clocks required for "qcom,scm-apq8084",
+ "qcom,scm-msm8916" and "qcom,scm-msm8974"
+- clock-names: Must contain "core" for the core clock, "iface" for the interface
+ clock and "bus" for the bus clock per the requirements of the compatible.
+- qcom,dload-mode: phandle to the TCSR hardware block and offset of the
+ download mode control register (optional)
+
+Example for MSM8916:
+
+ firmware {
+ scm {
+ compatible = "qcom,msm8916", "qcom,scm";
+ clocks = <&gcc GCC_CRYPTO_CLK> ,
+ <&gcc GCC_CRYPTO_AXI_CLK>,
+ <&gcc GCC_CRYPTO_AHB_CLK>;
+ clock-names = "core", "bus", "iface";
+ };
+ };