diff mbox

[v5,1/8] dt/bindings: firmware: Add Qualcomm SCM binding

Message ID 1463111221-6963-2-git-send-email-andy.gross@linaro.org
State Accepted
Commit ece85839d228d8b2948a69b6f9929266bb8d5901
Headers show

Commit Message

Andy Gross May 13, 2016, 3:46 a.m. UTC
This patch adds the device tree support for the Qualcomm SCM firmware.

Signed-off-by: Andy Gross <andy.gross@linaro.org>

---
 .../devicetree/bindings/firmware/qcom,scm.txt      | 28 ++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/firmware/qcom,scm.txt

-- 
1.9.1

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Comments

Rob Herring May 16, 2016, 4:09 p.m. UTC | #1
On Thu, May 12, 2016 at 10:46:54PM -0500, Andy Gross wrote:
> This patch adds the device tree support for the Qualcomm SCM firmware.

> 

> Signed-off-by: Andy Gross <andy.gross@linaro.org>

> ---

>  .../devicetree/bindings/firmware/qcom,scm.txt      | 28 ++++++++++++++++++++++

>  1 file changed, 28 insertions(+)

>  create mode 100644 Documentation/devicetree/bindings/firmware/qcom,scm.txt


Acked-by: Rob Herring <robh@kernel.org>

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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.txt b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
new file mode 100644
index 0000000..3b4436e
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/qcom,scm.txt
@@ -0,0 +1,28 @@ 
+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" for APQ8064 platforms
+ * "qcom,scm-msm8660" for MSM8660 platforms
+ * "qcom,scm-msm8690" for MSM8690 platforms
+ * "qcom,scm" for later processors (MSM8916, APQ8084, MSM8974, etc)
+- clocks: One to three clocks may be required based on compatible.
+ * Only core clock required for "qcom,scm-apq8064", "qcom,scm-msm8660", and "qcom,scm-msm8960"
+ * Core, iface, and bus clocks required for "qcom,scm"
+- 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.
+
+Example for MSM8916:
+
+	firmware {
+		scm {
+			compatible = "qcom,scm";
+			clocks = <&gcc GCC_CRYPTO_CLK> , <&gcc GCC_CRYPTO_AXI_CLK>, <&gcc GCC_CRYPTO_AHB_CLK>;
+			clock-names = "core", "bus", "iface";
+		};
+	};