diff options
Diffstat (limited to 'Documentation/ABI/testing/configfs-spear-pcie-gadget')
| -rw-r--r-- | Documentation/ABI/testing/configfs-spear-pcie-gadget | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/Documentation/ABI/testing/configfs-spear-pcie-gadget b/Documentation/ABI/testing/configfs-spear-pcie-gadget index 840c324ef34d..cf877bd341df 100644 --- a/Documentation/ABI/testing/configfs-spear-pcie-gadget +++ b/Documentation/ABI/testing/configfs-spear-pcie-gadget @@ -10,22 +10,24 @@ Description: This interfaces can be used to show spear's PCIe device capability. Nodes are only visible when configfs is mounted. To mount configfs - in /config directory use: - # mount -t configfs none /config/ + in /config directory use:: - For nth PCIe Device Controller - /config/pcie-gadget.n/ - link ... used to enable ltssm and read its status. - int_type ...used to configure and read type of supported - interrupt - no_of_msi ... used to configure number of MSI vector needed and + # mount -t configfs none /config/ + + For nth PCIe Device Controller /config/pcie-gadget.n/: + + =============== ====================================================== + link used to enable ltssm and read its status. + int_type used to configure and read type of supported interrupt + no_of_msi used to configure number of MSI vector needed and to read no of MSI granted. - inta ... write 1 to assert INTA and 0 to de-assert. - send_msi ... write MSI vector to be sent. - vendor_id ... used to write and read vendor id (hex) - device_id ... used to write and read device id (hex) - bar0_size ... used to write and read bar0_size - bar0_address ... used to write and read bar0 mapped area in hex. - bar0_rw_offset ... used to write and read offset of bar0 where - bar0_data will be written or read. - bar0_data ... used to write and read data at bar0_rw_offset. + inta write 1 to assert INTA and 0 to de-assert. + send_msi write MSI vector to be sent. + vendor_id used to write and read vendor id (hex) + device_id used to write and read device id (hex) + bar0_size used to write and read bar0_size + bar0_address used to write and read bar0 mapped area in hex. + bar0_rw_offset used to write and read offset of bar0 where bar0_data + will be written or read. + bar0_data used to write and read data at bar0_rw_offset. + =============== ====================================================== |