Using interface definitions makes it possible to group pins of a peripheral
into a interface pins. This allows us to use connect_bd_intf_net to connect
all pins of the interface instead of having to manually call connect_bd_net
for each for the pins.
Using interface pins also unclutters the connections in the Vivado block
design view a bit.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Initialize ip_repo_paths so that when building a peripheral we have access to the interface definitions stored in the repository.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Modify the adi_add_bus() function to take the full vlnv strings instead of just the bus type.
This makes the function more flexible and e.g. allows to handle buses from other vendors.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The util_sync_reset peripheral hasn't been used in a while and will not be
used in new projects. So remove it.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
When the DMA controller gets disabled in the middle of a transfer it is
possible that the resize block contains a partial sample. Starting the next
transfer the partial sample will appear the begining of the new stream and
also cause a channel shift.
To avoid this make sure to reset and flush the resize blocks when the DMA
controller is disabled.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
We need to make sure to not prematurely de-assert the s_valid signal for the
request splitter when disabling the DMAC. Otherwise it is possible that
under certain conditions the DMAC is disabled with a partially accepted
request and when it is enabled again it will continue in an inconsistent
state which can lead to transfer corruption or pipeline stalls.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
All components should use the internal 'do_enable' signal instead of the
external 'enable' signal. The former correctly incorporates the shutdown
sequence and does not get asserted again until the shutdown has been
completed. Using the external signal can cause problems when it is disabled
and enabled again in close proximity.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Currently when the DMAC gets disabled the request_generator will still
generate all remaining burst requests for the currently active transfer.
While these requests will be ignored by the source and destination component
this can still take a fair amount of time for long transfers.
So just stop generating burst requests once the DMAC is being disabled.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Refactor the fifo_inf modules to always correctly generate the underflow and
overflow status signals. Before it was possible that in some cases they
were not generated when they should have been.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Lars-Peter Clausen
Rejeesh Kutty
Istvan Csomortani
Adrian Costina