Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/configfs-spear-pcie-gadget b/Documentation/ABI/testing/configfs-spear-pcie-gadget
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index 000000000..cf877bd34
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-spear-pcie-gadget
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+What:		/config/pcie-gadget
+Date:		Feb 2011
+KernelVersion:	2.6.37
+Contact:	Pratyush Anand <pratyush.anand@gmail.com>
+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.
+	=============== ======================================================