40 lines
1.5 KiB
Plaintext
40 lines
1.5 KiB
Plaintext
SMSC USB3503 High-Speed Hub Controller
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Required properties:
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- compatible: Should be "smsc,usb3503" or "smsc,usb3503a".
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Optional properties:
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- reg: Specifies the i2c slave address, it is required and should be 0x08
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if I2C is used.
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- connect-gpios: Should specify GPIO for connect.
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- disabled-ports: Should specify the ports unused.
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'1' or '2' or '3' are available for this property to describe the port
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number. 1~3 property values are possible to be described.
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Do not describe this property if all ports have to be enabled.
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- intn-gpios: Should specify GPIO for interrupt.
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- reset-gpios: Should specify GPIO for reset.
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- initial-mode: Should specify initial mode.
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(1 for HUB mode, 2 for STANDBY mode)
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- refclk: Clock used for driving REFCLK signal (optional, if not provided
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the driver assumes that clock signal is always available, its
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rate is specified by REF_SEL pins and a value from the primary
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reference clock frequencies table is used). Use clocks and
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clock-names in order to assign it
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- refclk-frequency: Frequency of the REFCLK signal as defined by REF_SEL
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pins (optional, if not provided, driver will not set rate of the
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REFCLK signal and assume that a value from the primary reference
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clock frequencies table is used)
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Examples:
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usb3503@8 {
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compatible = "smsc,usb3503";
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reg = <0x08>;
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connect-gpios = <&gpx3 0 1>;
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disabled-ports = <2 3>;
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intn-gpios = <&gpx3 4 1>;
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reset-gpios = <&gpx3 5 1>;
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initial-mode = <1>;
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clocks = <&clks 80>;
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clock-names = "refclk";
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};
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