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caravel
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121 Commits

Author SHA1 Message Date
Tim Edwards c5e7c67d60 Once again. . . Rewrote the RTL verilog so that only signals 
being buffered pass through the buffer macros.  Removed the
straight-through signals from the layout, and renumbered the
vectors in the buffer cells, which no longer match the numbering
at the top level (unfortunately).
 2022-10-16 12:49:44 -04:00
Tim Edwards 589f351dcb Additional modification to move pins up into an uncongested area 
above housekeeping, because the upper GPIO pins are in the wrong
place relative to the new GPIO signal routing below the SoC.
Added pins for the pass-through connections.  Unconnected/
unrouted OEB pins are still not present and probably should be
removed from the RTL.
 2022-10-16 10:52:53 -04:00
Tim Edwards 43b8f9d4fe Merge branch 'caravel_redesign' into fix_top_buffers_again 
Updating to the most recent caravel_redesign branch version.
 2022-10-16 10:05:36 -04:00
Tim Edwards dcc3c56b83 Some additional corrections to the gpio_signal_buffering cells. 
Corrected one instance where a buffer had incorrectly been replaced
with a decap cell.  Moved the left-hand side in by 0.6um to clear
the chip_io connections on the left-hand side.  Corrected a small
DRC error in a route position at the bottom.
 2022-10-16 09:50:20 -04:00
Marwan Abbas 6c6fa6b502
Merge pull request #255 from efabless/caravel_power_routing-sync-views 
caravel_power_routing updates
 2022-10-16 14:15:19 +02:00
kareem 914971d253 + add pr boundary for caravel_power_routing 
based on feedback from tim in order to generate a lef view
with a zero origin and avoid any hacks

+ add caravel_power_routing lef
+ sync caravel_power_routing gds and mag
 2022-10-16 04:41:29 -07:00
Marwan Abbas cb051054af
Merge pull request #254 from mo-hosni/hk_without_lables 
housekeeping without labels
 2022-10-16 13:38:02 +02:00
mo-hosni 3f0bddbcc6 update openlane views 2022-10-16 03:45:30 -07:00
mo-hosni 22dde425ac add mgmt_protect views and openlane files 2022-10-16 03:14:55 -07:00
Tim Edwards a77a45babe Adjustments to the top level buffering cells to do various things 
like avoid obstructions in the padframe and power routing, add
decap, and separate coupling wires to reduce capacitance.
 2022-10-15 17:35:17 -04:00
mo-hosni 953eca32d1 updated power routing for mgmt_core_wrapper and mgmt_protect 2022-10-15 09:18:28 -07:00
kareem 5d5d019ea1 Revert "add buff_flash_clkrst" 
This reverts commit 2675487322.
 2022-10-15 08:47:02 -07:00
Tim Edwards 3db846b119 Fixes issues with the GPIO signal buffering by applying a bounding 
box to the layout, so that LEF and DEF positions are correct.
 2022-10-15 10:31:35 -04:00
mo-hosni 2675487322 add buff_flash_clkrst 2022-10-15 06:38:42 -07:00
Marwan Abbas 316f2dbb58
Merge pull request #238 from mo-hosni/update_mgmt_protect 
Update mgmt protect
 2022-10-15 11:27:59 +02:00
mo-hosni 3361c8787d Add mgmt_protect views and openlane files 2022-10-15 01:46:22 -07:00
passant5 8c0e4f7403
Merge branch 'caravel_redesign' into add_top_level_buffers 2022-10-15 00:28:14 +02:00
Tim Edwards 1f5a158077 Essentially the same commit as the last one, but setting the metal 
3 horizontal bus width to 0.5um, as requested, rather than 0.6um.
 2022-10-14 16:36:42 -04:00
Tim Edwards 276580feb4 Updated the metal 3 horizontal power stripes on the mgmt_protect_hv 
layout to make them 0.6um (up from 0.3um wide).
 2022-10-14 16:28:07 -04:00
Tim Edwards 92e2f5e8a4 Added layout views (.mag, GDS, DEF, and LEF) for the caravan 
variant of the top level GPIO signal buffering (module
gpio_signal_buffering_alt).
 2022-10-14 16:06:11 -04:00
Tim Edwards aff5817f30 Rewrote the layout for mgmt_protect_hv after correcting the pins, 
which had not been correctly annotated for ports and so were
marked only as plain labels, causing issues when using the cell
as a macro inside mgmt_protect.
 2022-10-14 15:11:52 -04:00
mo-hosni 0e01725608 add housekeeping views 2022-10-14 09:26:34 -07:00
kareem aadfb57609 reharden: caravel_clocking 
~ align pdn with top level
~ move spefs and sdfs output corners to signoff/*/openlane-signoff
 2022-10-14 05:24:49 -07:00
Tim Edwards 46d44793e2 Added layout for the gpio_signal_buffering module, including GDS, 
LEF, DEF, and magic views.
 2022-10-13 21:59:10 -04:00
kareem 6452f14de0 reimplement caravel with latest blocks updates and a buffer macro 2022-10-13 13:34:47 -07:00
Marwan Abbas f7299933ee
Merge pull request #217 from mo-hosni/buff_flash_clkrst 
Buff flash clkrst
 2022-10-13 20:53:18 +02:00
Marwan Abbas 14856fea6d
Merge pull request #216 from mo-hosni/housekeeping_final_views 
Housekeeping final views
 2022-10-13 20:47:09 +02:00
Marwan Abbas e72f819020
Merge pull request #210 from mo-hosni/final_views 
mgmt_protect final views
 2022-10-13 20:33:57 +02:00
Marwan Abbas 08ac55bed8
Merge pull request #214 from efabless/caravel_clocking-buffering 
Caravel clocking reharden
 2022-10-13 20:13:45 +02:00
kareem c922241c3f reharden: caravel_clocking 
+ add custom interactive script to insert a buffer on user_clk output
and have a large buffer on core_clk
~ change pdn config to match top level
~ change sdc
~ change openlane configuration
 2022-10-13 10:54:04 -07:00
mo-hosni 889aa7e308 add buff_flash_clkrst 2022-10-13 10:35:51 -07:00
mo-hosni 0389423ea6 add housekeeping 2022-10-13 10:15:05 -07:00
mo-hosni 1aaebf5cbb add mgmt_protect 2022-10-13 10:11:45 -07:00
kareem 59743f4832 change buf16 to clkbuf16 and reimplement 2022-10-13 06:54:55 -07:00
kareem d26c071594 push digital_pll gds 2022-10-13 06:24:27 -07:00
kareem 9ccb0ff2ed reharden!: caravel 
~ reimplement based on updated views of the macros
~ change interactive script to call label_macro_pins
~ extract all spef and sdf corners using timing-scripts repo

!important same work arounds as before
 2022-10-12 04:45:08 -07:00
Mohamed Shalan 98951388d0
Merge pull request #179 from efabless/chip_io_fix_ports 
Fixes the .mag, LEF, DEF, and GDS views of chip_io and chip_io_alt
 2022-10-12 11:37:24 +02:00
mo-hosni 76f8d37496 Rehardened housekeeping to fix Antenna violations. 2022-10-11 16:41:50 -07:00
Tim Edwards a2feddf714 Corrected the layout views of chip_io and chip_io_alt, which were 
missing some of the labels for the power supplies (they were
accidentally erased during layout re-work).
 2022-10-11 11:39:03 -04:00
mo-hosni df05079b6f update houskeepong powere netlst and fixed some antenna violations 2022-10-11 01:46:23 -07:00
kareem 16fba569ad updated caravel gds that was missed in the last caravel update push 2022-10-10 08:35:13 -07:00
Mohamed Hosni 40098f693e
Merge branch 'efabless:caravel_redesign' into caravel_redesign 2022-10-10 05:08:33 -07:00
Mohamed Hosni fa441babea
Merge branch 'efabless:caravel_redesign' into caravel_redesign 2022-10-10 01:24:24 -07:00
mo-hosni 7a7690ba10 Update housekeeping 2022-10-10 01:21:51 -07:00
mo-hosni 7e5891dd9f Update mgmt_protect 2022-10-10 01:19:40 -07:00
Tim Edwards 2459b3583e Updated all views of chip_io and chip_io_alt based on the abstract 
view of constant_block which was recently merged into the repository.
The constant_block instance positions and connections were modified
slightly to avoid routing over obstruction areas.
 2022-10-09 14:20:43 -04:00
Mohamed Shalan 7538c8c776
Merge pull request #161 from efabless/chip_io_rework 2022-10-09 16:31:28 +02:00
Tim Edwards eceb71ee04 Added GDS, DEF, and LEF views of both chip_io and chip_io_alt. 2022-10-08 22:24:38 -04:00
mo-hosni da9e607760 added constant_block gds 2022-10-08 12:13:09 -07:00
mo-hosni b88648bbae compress gds 2022-10-07 17:03:21 -07:00