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36 Commits

Author SHA1 Message Date
Andreas Olofsson
dcdf4a9231 Adding experimental OSERDESE2 model
Experimental model, dirty design
Bits are coming out and frame looks good..
Will continue with RX and debugging tomorrow
2015-04-15 23:03:33 -04:00
Andreas Olofsson
b1a9f502ca Xilinx models
-adding ODDR model
-configuring the ecfg (rx/tx/clk) in testbench
2015-04-15 17:54:19 -04:00
Andreas Olofsson
bdec6c1067 Cleaning up tx config register 2015-04-15 17:53:50 -04:00
Andreas Olofsson
846bfa3357 Fixing startup issues in transmit path:
-adding reset signals to synchronizer to solve startup issues
-setting config in test bench for speedup, default reg config now correct
-fix (my) stupid bug in etx_arbiter
-adding reset to fifo (todo: review this!)
-reviewing "all red" from waveforms is a must. Red (x) on data is ok, but leaving them on control signals is asking for trouble. Better safe than sorry when it comes to reset.
2015-04-15 16:33:20 -04:00
Andreas Olofsson
710c48b880 Fixed clock divider circuit
-changed ecfg clock default values, elink default is now the PLL clock/128 coming out of reset
-should work in any implementation?
-still have to implement the Xilinx specific stuff
2015-04-15 14:56:29 -04:00
Andreas Olofsson
69f3df4140 Continued work to create clean design:
-pll bypass for clocks (customer request)
-adding dividers on all clocks (tx/cclk)
-adding reset block (clearer)
-using commong clock_divider block
-need to clean up divider block later today, slightly broken:-)
2015-04-15 11:54:43 -04:00
Andreas Olofsson
3ddb6679ff Silly bug in access logic
Looks like I was interrupt while coding..
2015-04-14 23:55:00 -04:00
Andreas Olofsson
67f242c8ef Running with "TARGET_CLEAN" 2015-04-14 23:48:58 -04:00
Andreas Olofsson
b58660e9a6 Adding different data modes
Good enough fufu testing...
..the next step is driving stimulus with transactor through Verilator..
2015-04-14 23:47:49 -04:00
Andreas Olofsson
93330039e0 AXI bug fixes
-First bug was a typo. Cursing AXI for making every signal look exactly the same at first glance.  Not good use practice
-Second bug was sloppy. (removed pipeline stage on write data by mistake)
2015-04-14 20:26:58 -04:00
Andreas Olofsson
b9d3c5ac5c Verilator lint cleanup
~10 real bugs
-mostly name mismatches and bit range mistakes
2015-04-14 14:00:23 -04:00
Andreas Olofsson
f33d940df8 Fixed renaming bug..axi ready signal not working
(would have been caught by verilator, time to lint...)
2015-04-14 13:08:27 -04:00
Andreas Olofsson
bf1671b1e9 Added "fufu" DV environment for elink
-Icarus for now, verilator comes next
-Using our "standard" emesh interface
..here we go...
2015-04-14 11:45:33 -04:00
Andreas Olofsson
d809f46286 Removing unused signals from interface 2015-04-14 11:44:31 -04:00
Andreas Olofsson
7dbaa68ec5 Clean up of old files 2015-04-14 08:32:04 -04:00
Andreas Olofsson
5bd5d1ff54 Man that's a lot of yak shaving....
-added register read/write properly
-removed redundant wrapper layers in maxi/saxi
-changed over to "emesh" interface from packet 103 bit data
-cleaned up maxi
-cleaned up saxi
-removed redundant signals in elink interface (user,lock,..)
-added wrapper to fifo (to carry emesh interface through)

Now comes the fun part of testing
2015-04-13 23:35:21 -04:00
Andreas Olofsson
d45439b43e Changing emesh/elink transaction order
Our "standard packet" order should be followed everywhere to ease verification and integration (standards are good fir reuse...):
[0]=access
[1]=write
[3:2]=datamode
[7:4]=ctrlmode
[39:8]=dstaddr
[71:40]=data
[103:72]=upper-data (or srcaddr)
2015-04-12 08:59:53 -04:00
Andreas Olofsson
21a058f696 Cleanup
Removed useless common directory
Fixed vivados permissions on file
2015-04-11 00:12:57 -04:00
Andreas Olofsson
baebdab381 Reorganizing files...too many folders after all.
There is only one elink...
2015-04-11 00:10:16 -04:00
Andreas Olofsson
73229ff914 Major cleanup, refactoring, and feature completion
-adding clock bypass mode for esystx[12]
-removing monitor feature on erx
-remove loopback support from doc
-add clock bypass mode for esysclk
-shortening register names (descriptive enough)
-added debug signal information
-moving registers to elink
-making elink version programmable (to support plug in boards)
-reorganized debug signals and added stickys
-added timeout for axi slave
-removed embox status bit (redudant, don't poll status)
-renamed EMBOX0-->EMBOXLO
-moved datain interface straight to ecfg (cleanup)
-changed etx arbiter priority to increase stability
-created the esaxi_mux block
-fixed some missing ports issues in stubs

Now comes the fun part...verification...
Andreas
2015-04-11 00:04:18 -04:00
Andreas Olofsson
239ca128c2 Vivado run through
-missed connections
-mismatched bus widths
-missing IP blocks
-cleanup
-proper DV starts tomorrow
2015-04-08 23:40:16 -04:00
Andreas Olofsson
be50a87f83 Adding constraints
Not sure if it's needed...still have to generate elink "ip" block
2015-04-08 23:39:03 -04:00
Andreas Olofsson
a6a5de33c2 Fixing bus issue with datain/dataout signal
Found in Vivado...
Needed to  connect up the wait signals properly on dataout/datain registers
2015-04-08 13:20:25 -04:00
Andreas Olofsson
d2cb9aa224 Refactoring and fixing bugs...
-back and forth with emmu, memory is now inside (for good)
-renamed clocks in etx to clarify
-updated logic in protocol and disty
-updated clock module
...one more review pass and we are ready for testing...
2015-03-25 19:25:12 -04:00
Andreas Olofsson
b0b9315bf1 Massive checkin...
-this may break already broken projects
-creates a Verilog top level (instead of using Vivado block level design)
-integrates mmy and mailbox (not completely integrated)
-compiles...
-pours in all of the code from the archive
(some new logic created)
2015-03-24 20:44:03 -04:00
Andreas Olofsson
0aa949b382 Fixing typo 2015-03-23 15:46:56 -04:00
aolofsson
1346c02803 Verilator inspired bug fixes
-address width in elink
-bus widths in ecfg
-command file more generic
2014-12-15 15:25:09 -05:00
aolofsson
7b6b281862 Adding new elink top level file written in verilog.
Compiles and runs (needs work)
2014-12-14 22:19:02 -05:00
aolofsson
0cd5939a26 Adding fofo environment for elink to check for broken signals.
Too many stub modules to be practical..next need sim models
2014-12-14 22:17:23 -05:00
aolofsson
d2a4d1431b Moving file to elink (makes more sense):
Each directory should be a self contained "object"
2014-12-14 17:41:07 -05:00
aolofsson
c9a70e5f6b An unverified clean top level elink design module 2014-12-14 17:25:46 -05:00
aolofsson
94ef357c52 Removing old files not needed by new design 2014-12-12 12:27:22 -05:00
aolofsson
6778fce054 Cleaning up old files.. 2014-11-06 15:40:40 -05:00
aolofsson
b151bc90e1 More file organization
Adding some more utility functions
2014-11-06 12:19:39 -05:00
aolofsson
60182e52e3 A "complete" elink top level block with all new features added. Still need
to work on the axi side.
2014-11-06 12:18:16 -05:00
aolofsson
3f513c9d84 Basic interfaces..still need to add the axi signals and fill in the content 2014-11-06 12:16:09 -05:00