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Based on kernel version 3.13. Page generated on 2014-01-20 21:59 EST.

1	What:		/config/pcie-gadget
2	Date:		Feb 2011
3	KernelVersion:	2.6.37
4	Contact:	Pratyush Anand <pratyush.anand@st.com>
5	Description:
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.
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