40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
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MSM MHI
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MSM MHI enables communication with a device over a PCIe link using the
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Modem Host Interface protocol. The bindings referred to below, enable
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the correct configuration of the interface and required sideband
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signals.
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Required properties:
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- compatible: should be "qcom,mhi"
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- Refer to "Documentation/devicetree/bindings/esoc/esoc_client.txt" for
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below properties:
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- esoc-names
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- esoc-0
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- Refer to "Documentation/devicetree/bindings/arm/msm/msm_bus.txt" for
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below optional properties:
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- qcom,msm-bus,name
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- qcom,msm-bus,num-cases
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- qcom,msm-bus,num-paths
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- qcom,msm-bus,vectors-KBps
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- mhi-chan-cfg-#: mhi channel configuration parameters for platform
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- mhi-event-cfg-#: mhi event ring configuration parameters for platform
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- mhi-event-rings: number of event rings supported by platform
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Example:
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mhi: qcom,mhi {
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compatible = "qcom,mhi";
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esoc-names = "mdm";
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esoc-0 = <&mdm1>;
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qcom,msm-bus,name = "mhi";
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qcom,msm-bus,num-cases = <2>;
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qcom,msm-bus,num-paths = <1>;
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qcom,msm-bus,vectors-KBps =
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<100 512 0 0>,
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<100 512 1200000000 1200000000>;
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mhi-event-rings = <6>;
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mhi-chan-cfg-102 = <0x66 0x80 0x5 0x62>;
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mhi-event-cfg-0 = <0x80 0x0 0x0 0x11>;
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};
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