| Line 2734... |
Line 2734... |
When @code{rtx_type} is @code{"tap"} (see above), @var{tap_dev}
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When @code{rtx_type} is @code{"tap"} (see above), @var{tap_dev}
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specifies the TAP device to use for communication. This should be a
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specifies the TAP device to use for communication. This should be a
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persistent TAP device configured for the system (@pxref{Ethernet TUN/TAP
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persistent TAP device configured for the system (@pxref{Ethernet TUN/TAP
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Interface, , Ethernet TUN/TAP Interface})
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Interface, , Ethernet TUN/TAP Interface})
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@item vapi_id = @var{value}
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@item phy_addr = @var{value}
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@cindex @code{vapi_id} (DMA configuration)
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@cindex @code{phy_addr}
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@var{value} specifies the value of the Verification API (VAPI) base
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@var{value} specifies the address for emulated ethernet PHY (default
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address to be used with the Ethernet PHY. @xref{Verification API, ,
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0). If there are multiple Ethernet peripherals, they should each have a
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Verification API}, for more details, which details the use of the VAPI
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different PHY value.
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with the DMA controller.
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@item dummy_crc = 0|1
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@cindex @code{dummy_crc} (Ethernet configuration)
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If 1 (true, the default), the length of the data transferred to the core
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will be increased by 4 bytes, as though the CRC were included.
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@quotation Note
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This is for historical consistency with the OpenRISC Ethernet hardware
|
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MAC, which passes on the CRC in the data packet. This is unusual
|
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behavior for a MAC, but the OpenRISC Linux device drivers have been
|
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written to expect it.
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@end quotation
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@item phy_addr = @var{value}
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@item phy_addr = @var{value}
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@cindex @code{phy_addr}
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@cindex @code{phy_addr}
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@var{value} specifies the address for emulated ethernet PHY (default
|
@var{value} specifies the address for emulated ethernet PHY (default
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0). If there are multiple Ethernet peripherals, they should each have a
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0). If there are multiple Ethernet peripherals, they should each have a
|
different PHY value.
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different PHY value.
|
|
|
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@item vapi_id = @var{value}
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@cindex @code{vapi_id} (DMA configuration)
|
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@var{value} specifies the value of the Verification API (VAPI) base
|
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address to be used with the Ethernet PHY. @xref{Verification API, ,
|
|
Verification API}, for more details, which details the use of the VAPI
|
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with the DMA controller.
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@end table
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@end table
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@node GPIO Configuration
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@node GPIO Configuration
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@subsection GPIO Configuration
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@subsection GPIO Configuration
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@cindex configuring the GPIO
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@cindex configuring the GPIO
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