forked from Minki/linux
03a8f438f5
Allows the OMAP HS USB host controller to be specified via device tree. Signed-off-by: Roger Quadros <rogerq@ti.com> Reviewed-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
81 lines
2.0 KiB
Plaintext
81 lines
2.0 KiB
Plaintext
OMAP HS USB Host
|
|
|
|
Required properties:
|
|
|
|
- compatible: should be "ti,usbhs-host"
|
|
- reg: should contain one register range i.e. start and length
|
|
- ti,hwmods: must contain "usb_host_hs"
|
|
|
|
Optional properties:
|
|
|
|
- num-ports: number of USB ports. Usually this is automatically detected
|
|
from the IP's revision register but can be overridden by specifying
|
|
this property. A maximum of 3 ports are supported at the moment.
|
|
|
|
- portN-mode: String specifying the port mode for port N, where N can be
|
|
from 1 to 3. If the port mode is not specified, that port is treated
|
|
as unused. When specified, it must be one of the following.
|
|
"ehci-phy",
|
|
"ehci-tll",
|
|
"ehci-hsic",
|
|
"ohci-phy-6pin-datse0",
|
|
"ohci-phy-6pin-dpdm",
|
|
"ohci-phy-3pin-datse0",
|
|
"ohci-phy-4pin-dpdm",
|
|
"ohci-tll-6pin-datse0",
|
|
"ohci-tll-6pin-dpdm",
|
|
"ohci-tll-3pin-datse0",
|
|
"ohci-tll-4pin-dpdm",
|
|
"ohci-tll-2pin-datse0",
|
|
"ohci-tll-2pin-dpdm",
|
|
|
|
- single-ulpi-bypass: Must be present if the controller contains a single
|
|
ULPI bypass control bit. e.g. OMAP3 silicon <= ES2.1
|
|
|
|
Required properties if child node exists:
|
|
|
|
- #address-cells: Must be 1
|
|
- #size-cells: Must be 1
|
|
- ranges: must be present
|
|
|
|
Properties for children:
|
|
|
|
The OMAP HS USB Host subsystem contains EHCI and OHCI controllers.
|
|
See Documentation/devicetree/bindings/usb/omap-ehci.txt and
|
|
omap3-ohci.txt
|
|
|
|
Example for OMAP4:
|
|
|
|
usbhshost: usbhshost@4a064000 {
|
|
compatible = "ti,usbhs-host";
|
|
reg = <0x4a064000 0x800>;
|
|
ti,hwmods = "usb_host_hs";
|
|
#address-cells = <1>;
|
|
#size-cells = <1>;
|
|
ranges;
|
|
|
|
usbhsohci: ohci@4a064800 {
|
|
compatible = "ti,ohci-omap3", "usb-ohci";
|
|
reg = <0x4a064800 0x400>;
|
|
interrupt-parent = <&gic>;
|
|
interrupts = <0 76 0x4>;
|
|
};
|
|
|
|
usbhsehci: ehci@4a064c00 {
|
|
compatible = "ti,ehci-omap", "usb-ehci";
|
|
reg = <0x4a064c00 0x400>;
|
|
interrupt-parent = <&gic>;
|
|
interrupts = <0 77 0x4>;
|
|
};
|
|
};
|
|
|
|
&usbhshost {
|
|
port1-mode = "ehci-phy";
|
|
port2-mode = "ehci-tll";
|
|
port3-mode = "ehci-phy";
|
|
};
|
|
|
|
&usbhsehci {
|
|
phys = <&hsusb1_phy 0 &hsusb3_phy>;
|
|
};
|