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Commit | Line | Data |
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eab8050c DK |
1 | SMSC USB3503 High-Speed Hub Controller |
2 | ||
3 | Required properties: | |
5bdd1f4a | 4 | - compatible: Should be "smsc,usb3503" or "smsc,usb3503a". |
e5162d40 MB |
5 | |
6 | Optional properties: | |
3f0d1c67 MB |
7 | - reg: Specifies the i2c slave address, it is required and should be 0x08 |
8 | if I2C is used. | |
eab8050c | 9 | - connect-gpios: Should specify GPIO for connect. |
e8b58b49 | 10 | - disabled-ports: Should specify the ports unused. |
3717c5c9 TJ |
11 | '1' or '2' or '3' are available for this property to describe the port |
12 | number. 1~3 property values are possible to be described. | |
e8b58b49 | 13 | Do not describe this property if all ports have to be enabled. |
eab8050c DK |
14 | - intn-gpios: Should specify GPIO for interrupt. |
15 | - reset-gpios: Should specify GPIO for reset. | |
16 | - initial-mode: Should specify initial mode. | |
17 | (1 for HUB mode, 2 for STANDBY mode) | |
657d898a MS |
18 | - refclk: Clock used for driving REFCLK signal (optional, if not provided |
19 | the driver assumes that clock signal is always available, its | |
20 | rate is specified by REF_SEL pins and a value from the primary | |
2729f62c MT |
21 | reference clock frequencies table is used). Use clocks and |
22 | clock-names in order to assign it | |
657d898a MS |
23 | - refclk-frequency: Frequency of the REFCLK signal as defined by REF_SEL |
24 | pins (optional, if not provided, driver will not set rate of the | |
25 | REFCLK signal and assume that a value from the primary reference | |
26 | clock frequencies table is used) | |
eab8050c DK |
27 | |
28 | Examples: | |
29 | usb3503@08 { | |
30 | compatible = "smsc,usb3503"; | |
31 | reg = <0x08>; | |
32 | connect-gpios = <&gpx3 0 1>; | |
e8b58b49 | 33 | disabled-ports = <2 3>; |
eab8050c DK |
34 | intn-gpios = <&gpx3 4 1>; |
35 | reset-gpios = <&gpx3 5 1>; | |
36 | initial-mode = <1>; | |
2729f62c MT |
37 | clocks = <&clks 80>; |
38 | clock-names = "refclk"; | |
eab8050c | 39 | }; |