summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/firmware/qcom,scm.txt
diff options
context:
space:
mode:
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
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/firmware/qcom,scm.txt
parentInitial commit. (diff)
downloadlinux-upstream/5.10.209.tar.xz
linux-upstream/5.10.209.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--Documentation/devicetree/bindings/firmware/qcom,scm.txt47
1 files changed, 47 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
new file mode 100644
index 000000000..78456437d
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
@@ -0,0 +1,47 @@
+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";
+ };
+ };