31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
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ST STiH407 USB PHY controller
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This file documents the dt bindings for the usb picoPHY driver which is the PHY for both USB2 and USB3
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host controllers (when controlling usb2/1.1 devices) available on STiH407 SoC family from STMicroelectronics.
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Required properties:
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- compatible : should be "st,stih407-usb2-phy"
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- reg : contain the offset and length of the system configuration registers
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used as glue logic to control & parameter phy
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- reg-names : the names of the system configuration registers in "reg", should be "param" and "reg"
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- st,syscfg : sysconfig register to manage phy parameter at driver level
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- resets : list of phandle and reset specifier pairs. There should be two entries, one
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for the whole phy and one for the port
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- reset-names : list of reset signal names. Should be "global" and "port"
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See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
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See: Documentation/devicetree/bindings/reset/reset.txt
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Example:
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usb2_picophy0: usbpicophy@f8 {
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compatible = "st,stih407-usb2-phy";
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reg = <0xf8 0x04>, /* syscfg 5062 */
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<0xf4 0x04>; /* syscfg 5061 */
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reg-names = "param", "ctrl";
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#phy-cells = <0>;
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st,syscfg = <&syscfg_core>;
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resets = <&softreset STIH407_PICOPHY_SOFTRESET>,
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<&picophyreset STIH407_PICOPHY0_RESET>;
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reset-names = "global", "port";
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};
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