From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- .../ABI/testing/configfs-spear-pcie-gadget | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/ABI/testing/configfs-spear-pcie-gadget (limited to 'Documentation/ABI/testing/configfs-spear-pcie-gadget') diff --git a/Documentation/ABI/testing/configfs-spear-pcie-gadget b/Documentation/ABI/testing/configfs-spear-pcie-gadget new file mode 100644 index 0000000000..cf877bd341 --- /dev/null +++ b/Documentation/ABI/testing/configfs-spear-pcie-gadget @@ -0,0 +1,33 @@ +What: /config/pcie-gadget +Date: Feb 2011 +KernelVersion: 2.6.37 +Contact: Pratyush Anand +Description: + + Interface is used to configure selected dual mode PCIe controller + as device and then program its various registers to configure it + as a particular device type. + 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/ + + 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. + =============== ====================================================== -- cgit v1.2.3