xref: /freebsd-src/sys/contrib/device-tree/Bindings/usb/gr-udc.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel VadotUSB Peripheral Controller driver for Aeroflex Gaisler GRUSBDC.
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotThe GRUSBDC USB Device Controller core is available in the GRLIB VHDL
4*c66ec88fSEmmanuel VadotIP core library.
5*c66ec88fSEmmanuel Vadot
6*c66ec88fSEmmanuel VadotNote: In the ordinary environment for the core, a Leon SPARC system,
7*c66ec88fSEmmanuel Vadotthese properties are built from information in the AMBA plug&play.
8*c66ec88fSEmmanuel Vadot
9*c66ec88fSEmmanuel VadotRequired properties:
10*c66ec88fSEmmanuel Vadot
11*c66ec88fSEmmanuel Vadot- name : Should be "GAISLER_USBDC" or "01_021"
12*c66ec88fSEmmanuel Vadot
13*c66ec88fSEmmanuel Vadot- reg : Address and length of the register set for the device
14*c66ec88fSEmmanuel Vadot
15*c66ec88fSEmmanuel Vadot- interrupts : Interrupt numbers for this device. Either one interrupt number
16*c66ec88fSEmmanuel Vadot	for all interrupts, or one for status related interrupts, one for IN
17*c66ec88fSEmmanuel Vadot	endpoint related interrupts and one for OUT endpoint related interrupts.
18*c66ec88fSEmmanuel Vadot
19*c66ec88fSEmmanuel VadotOptional properties:
20*c66ec88fSEmmanuel Vadot
21*c66ec88fSEmmanuel Vadot- epobufsizes : Array of buffer sizes for OUT endpoints when they differ
22*c66ec88fSEmmanuel Vadot	from the default size of 1024. The array is indexed by the OUT endpoint
23*c66ec88fSEmmanuel Vadot	number. If the property is present it typically contains one entry for
24*c66ec88fSEmmanuel Vadot	each OUT endpoint of the core. Fewer entries overrides the default sizes
25*c66ec88fSEmmanuel Vadot	only for as many endpoints as the array contains.
26*c66ec88fSEmmanuel Vadot
27*c66ec88fSEmmanuel Vadot- epibufsizes : Array of buffer sizes for IN endpoints when they differ
28*c66ec88fSEmmanuel Vadot	from the default size of 1024. The array is indexed by the IN endpoint
29*c66ec88fSEmmanuel Vadot	number. If the property is present it typically contains one entry for
30*c66ec88fSEmmanuel Vadot	each IN endpoint of the core. Fewer entries overrides the default sizes
31*c66ec88fSEmmanuel Vadot	only for as many endpoints as the array contains.
32*c66ec88fSEmmanuel Vadot
33*c66ec88fSEmmanuel VadotFor further information look in the documentation for the GLIB IP core library:
34*c66ec88fSEmmanuel Vadothttp://www.gaisler.com/products/grlib/grip.pdf
35