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33 lines
1.3 KiB
33 lines
1.3 KiB
What: /config/pcie-gadget |
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Date: Feb 2011 |
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KernelVersion: 2.6.37 |
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Contact: Pratyush Anand <[email protected]> |
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Description: |
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Interface is used to configure selected dual mode PCIe controller |
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as device and then program its various registers to configure it |
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as a particular device type. |
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This interfaces can be used to show spear's PCIe device capability. |
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Nodes are only visible when configfs is mounted. To mount configfs |
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in /config directory use:: |
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# mount -t configfs none /config/ |
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For nth PCIe Device Controller /config/pcie-gadget.n/: |
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=============== ====================================================== |
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link used to enable ltssm and read its status. |
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int_type used to configure and read type of supported interrupt |
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no_of_msi used to configure number of MSI vector needed and |
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to read no of MSI granted. |
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inta write 1 to assert INTA and 0 to de-assert. |
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send_msi write MSI vector to be sent. |
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vendor_id used to write and read vendor id (hex) |
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device_id used to write and read device id (hex) |
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bar0_size used to write and read bar0_size |
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bar0_address used to write and read bar0 mapped area in hex. |
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bar0_rw_offset used to write and read offset of bar0 where bar0_data |
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will be written or read. |
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bar0_data used to write and read data at bar0_rw_offset. |
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=============== ======================================================
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