1 QCOM Secure Channel Manager (SCM)
3 Qualcomm processors include an interface to communicate to the secure firmware.
4 This interface allows for clients to request different types of actions. These
5 can include CPU power up/down, HDCP requests, loading of firmware, and other
9 - compatible: must contain one of the following:
10 * "qcom,scm-apq8064" for APQ8064 platforms
11 * "qcom,scm-msm8660" for MSM8660 platforms
12 * "qcom,scm-msm8690" for MSM8690 platforms
13 * "qcom,scm-msm8996" for MSM8996 platforms
14 * "qcom,scm-ipq4019" for IPQ4019 platforms
15 * "qcom,scm" for later processors (MSM8916, APQ8084, MSM8974, etc)
16 - clocks: One to three clocks may be required based on compatible.
17 * No clock required for "qcom,scm-msm8996", "qcom,scm-ipq4019"
18 * Only core clock required for "qcom,scm-apq8064", "qcom,scm-msm8660", and "qcom,scm-msm8960"
19 * Core, iface, and bus clocks required for "qcom,scm"
20 - clock-names: Must contain "core" for the core clock, "iface" for the interface
21 clock and "bus" for the bus clock per the requirements of the compatible.
22 - qcom,dload-mode: phandle to the TCSR hardware block and offset of the
23 download mode control register (optional)
29 compatible = "qcom,scm";
30 clocks = <&gcc GCC_CRYPTO_CLK> , <&gcc GCC_CRYPTO_AXI_CLK>, <&gcc GCC_CRYPTO_AHB_CLK>;
31 clock-names = "core", "bus", "iface";