In some cases (GTX2) the transceiver may gate the out_clk when it is in
reset or misconfigured. This will stop the clock generators from getting
a clock prior removing the reset of the XCVR. The XCVR has a requirement
of running user clock while removing the reset. The correct sequence must be :
Enable device clocks (user clock)
Remove the reset from the XCVR
This adds a Readme.md to each project directory with pointers to project
documentation in the wiki, and the drivers (if they exist). This will
help with some autogenerated doc in the wiki, that is generated with the
innovatily named "wiki_summary.sh" shell script that parses through
these Readme.md files, and generates a summary table.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Iacob Liviu Mihai <liviu.iacob@analog.com>
When phase alignment is active, the PFD frequency value should be used
as outclk1 actual frequency.
The configuration interface of the fPLL does not support fractional values.
If the reference clock is fractional, the tool will throw an error that requirement
above is not respected.
Round up the reference clock for the SERDES and the lane rate in order to
overcome this issue, until it's not fixed by Intel.
The reconfiguration interface for the Stratix10 XCVR has a different
address width. Prepare the register map layout of the project to support
this new architecture.
All input and output delays should be referenced to a virtual clock.
If the input and output delays reference base clocks or PLL clocks rather than
virtual clocks, the intra- and inter-clock transfer clock uncertainties,
determined by derive_clock_uncertainty, are incorrectly applied to the I/O ports.
See mnl_timequest_cookbook.pdf for more info.
The process ad_xcvrcon has a device_clk attribute which can be used to
connect a custom device clock to the XCVR. Fix the proc call so we can
simplify the block design script.
Use the new util_cpack2 and util_upack2 cores. They have lower utilization
that the old util_cpack and util_upack cores.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Laszlo Nagy
Filip Gherman
Robin Getz
LIacob106
Adrian Costina
Sergiu Arpadi
Istvan Csomortani
Dragos Bogdan
AndreiGrozav
Lars-Peter Clausen