1What:		/config/pcie-gadget
2Date:		Feb 2011
3KernelVersion:	2.6.37
4Contact:	Pratyush Anand <pratyush.anand@gmail.com>
5Description:
6
7	Interface is used to configure selected dual mode PCIe controller
8	as device and then program its various registers to configure it
9	as a particular device type.
10	This interfaces can be used to show spear's PCIe device capability.
11
12	Nodes are only visible when configfs is mounted. To mount configfs
13	in /config directory use:
14	# mount -t configfs none /config/
15
16	For nth PCIe Device Controller
17	/config/pcie-gadget.n/
18		link ... used to enable ltssm and read its status.
19		int_type ...used to configure and read type of supported
20			interrupt
21		no_of_msi ... used to configure number of MSI vector needed and
22			to read no of MSI granted.
23		inta ... write 1 to assert INTA and 0 to de-assert.
24		send_msi ... write MSI vector to be sent.
25		vendor_id ... used to write and read vendor id (hex)
26		device_id ... used to write and read device id (hex)
27		bar0_size ... used to write and read bar0_size
28		bar0_address ... used to write and read bar0 mapped area in hex.
29		bar0_rw_offset ... used to write and read offset of bar0 where
30			bar0_data will be written or read.
31		bar0_data ... used to write and read data at bar0_rw_offset.
32