38 lines
1.5 KiB
Plaintext
38 lines
1.5 KiB
Plaintext
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USB HSIC Peripheral:
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This describes device tree node for the USB HSIC Peripheral. This works with
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usage of USB Device controller to enable USB HSIC Device mode functionality.
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Required properties:
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- compatible: should be "qcom,hsic-peripheral"
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- regs : offset and length of the register set in the memory map
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- interrupts: IRQ lines used by this controller
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- <supply-name>-supply: handle to the regulator device tree node
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Required "supply-name" is "vdd" and optional "GDSC".
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- qcom,vdd-voltage-level: This property must be a list of three integer
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values (no, min, max) where each value represents either a voltage in
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microvolts or a value corresponding to voltage corner.
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Optional properties :
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- qcom,usb-id-core: USB Core Index to be used to bind with gadget driver.
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- qcom,hsic-tlmm-init-seq: HSIC TLMM PADS initialization sequence with
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reg, value pairs.
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- reg : offset and length of the register set in the memory map.
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This is required if 'qcom,hsic-tlmm-init-seq' is specified.
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- qcom,hsic-disable-on-boot: If present then HSIC is suspended on bootup
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and user can enable this using sysfs if HSIC host is present.
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Example USB HSIC device node :
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hsic: hsic@f9a15000 {
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compatible = "qcom,hsic-peripheral";
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reg = <0xf9a15000 0x352>,
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<0x01112000 0xc>;
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interrupts = <0 136 0>;
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qcom,usb-id-core = <1>;
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vdd-supply = <&pmd9635_l2>;
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GDSC-supply = <&gdsc_usb_hsic>;
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qcom,vdd-voltage-level = <0 1200000 1200000>;
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qcom,hsic-tlmm-init-seq =
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<0x8 0x5 0x4 0x5 0x0 0x1>;
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qcom,hsic-disable-on-boot;
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};
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