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1What: /config/pcie-gadget2Date: Feb 20113KernelVersion: 2.6.374Contact: Pratyush Anand <pratyush.anand@gmail.com>5Description:6 7 Interface is used to configure selected dual mode PCIe controller8 as device and then program its various registers to configure it9 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 configfs13 in /config directory use::14 15 # mount -t configfs none /config/16 17 For nth PCIe Device Controller /config/pcie-gadget.n/:18 19 =============== ======================================================20 link used to enable ltssm and read its status.21 int_type used to configure and read type of supported interrupt22 no_of_msi used to configure number of MSI vector needed and23 to read no of MSI granted.24 inta write 1 to assert INTA and 0 to de-assert.25 send_msi write MSI vector to be sent.26 vendor_id used to write and read vendor id (hex)27 device_id used to write and read device id (hex)28 bar0_size used to write and read bar0_size29 bar0_address used to write and read bar0 mapped area in hex.30 bar0_rw_offset used to write and read offset of bar0 where bar0_data31 will be written or read.32 bar0_data used to write and read data at bar0_rw_offset.33 =============== ======================================================34