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93 Commits

Author SHA1 Message Date
Sylvain Munaut
519d4e2af8 ice40: Add support for SB_GB_IO 
During packing we replace them by standard SB_IO cells and create the
'fake' SB_GB that matches that IO site global buffer connection.

It's done in a separate pass because we need to make sure the nextpnr iob
have been dealt first so we have our final Bel location on the SB_IO.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-19 18:20:20 +01:00
Sylvain Munaut
d8e4c21d96 ice40: Add support for PLL global outputs via PADIN 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-19 18:20:20 +01:00
Sylvain Munaut
bc9f2da470 ice40: Introduce the concept of forPadIn SB_GB 
Those are cells that are created mainly to handle the various sources a
global network can be driven from other than a user net.

When the flag is set, this means the global network usually driven by
this BEL is in fact driven by something else and so that SB_GB BEL and
matching global network can't be used.

This is also what gets used to set the extra bits during bitstream
generation.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-19 18:20:20 +01:00
Sylvain Munaut
42fbb110fc ice40/bitstream: Handle IoCtrl.IE_ polarity when configuring unused SB_IO 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-19 13:12:43 +01:00
Sylvain Munaut
01950a2349 ice40/bitstream: Convert to UNIX line endings 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-16 16:24:56 +01:00
David Shah
20aa0a0eed ice40: Remove unnecessary RAM assertion 
Fixes #121

Signed-off-by: David Shah <dave@ds0.me>
 2018-11-16 13:18:53 +00:00
David Shah
becf3021bd ice40: Don't set colbuf bits for 384 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-11-11 23:52:04 +01:00
David Shah
ea03aafc26 clangformat 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-30 15:13:18 +01:00
David Shah
dea87e46c4 ice40: LVDS input bitstream support 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-24 17:58:55 +01:00
Miodrag Milanovic
3c51007026 do not break if there are no nets loaded from sym section 2018-08-18 10:28:50 +02:00
Clifford Wolf
e03ae50e21 Get rid of PortPin and BelType (ice40, generic, docs) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-08-08 17:01:18 +02:00
Clifford Wolf
5e53075990 API change: Use CellInfo* and NetInfo* as cell/net handles (common, ice40) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-08-05 15:25:42 +02:00
Clifford Wolf
287fe7e894 clangformat 2018-08-05 14:18:34 +02:00
David Shah
67347573c2 ice40: Bitstream gen for LUT permutation 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-04 18:23:48 +02:00
David Shah
35bc80e130 ice40: Add bitstream gen for routethru LUTs 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 09:26:37 +02:00
David Shah
0414c93403 ice40: Add HFOSC support, force fabric routing on oscillators for now 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-01 09:45:08 +02:00
Sergiusz Bazanski
85fc356fc1 clangformat 2018-08-01 03:59:27 +01:00
Eddie Hung
950f33c1bb clangformat 2018-07-25 17:53:01 -07:00
Sergiusz Bazanski
90ba958abe ice40: fixes before review 2018-07-24 03:19:22 +01:00
Sergiusz Bazanski
eaae1d299c ice40: move PLL->IO from pseudo pip to second uphill bel 2018-07-24 02:55:40 +01:00
Sergiusz Bazanski
65ceb20784 ice40: emit list of upbels in chipdb 2018-07-24 02:55:40 +01:00
Sergiusz Bazanski
fae7994bc3 clang-format 2018-07-24 02:55:40 +01:00
Sergiusz Bazanski
dbf79d78bb ice40: A slightly nicer way to do this. 2018-07-24 02:55:40 +01:00
Sergiusz Bazanski
e6c7b14465 ice40: Refactor PLL/LOCK LUT splicing out into Arch:: 2018-07-24 02:55:40 +01:00
Sergiusz Bazanski
2b1f7875bb ice40: Implement emitting PLLs 2018-07-24 02:38:10 +01:00
David Shah
bfa1137fe0 clangformat 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-23 13:02:57 +02:00
Miodrag Milanovic
b9c413a5aa Move to new API and remove deprecated 2018-07-22 19:58:17 +02:00
Clifford Wolf
62b66e0208 Rename getWireBelPin to getBelPinWire 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-07-22 10:59:21 +02:00
Miodrag Milanovic
f438fc615b Added driver and users for nets 2018-07-21 20:21:48 +02:00
Miodrag Milanovic
3175891cb5 Map ports to nets 2018-07-21 19:48:00 +02:00
Miodrag Milanovic
57c63e6921 create io cells out of asc 2018-07-21 17:54:35 +02:00
Miodrag Milanovic
912a79dc33 add cells that are in default state or no configuration 2018-07-21 17:38:22 +02:00
Miodrag Milanovic
7beb4739d4 Add used cells and attach them to bels 2018-07-21 17:04:47 +02:00
Miodrag Milanovic
13339c0355 Assign proper pips 2018-07-21 15:08:49 +02:00
Miodrag Milanovic
3afcd812c9 add only missing net 2018-07-21 14:41:04 +02:00
Miodrag Milanovic
20941292ad fix introduced bug 2018-07-21 09:22:09 +02:00
Miodrag Milanovic
34ec70e88b Bind wires to net 2018-07-20 18:42:27 +02:00
Miodrag Milanovic
6c835d76f2 Few more checks on parameters and error eol 2018-07-20 14:06:53 +02:00
Miodrag Milanovic
53034959f3 Start adding bitstream reading for ice40 2018-07-20 13:27:21 +02:00
David Shah
bff7d673ed ice40: Packer and bitstream gen support for MAC16s 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-19 14:03:48 +02:00
David Shah
d221e90706 Reducing performance cost of asserts 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-19 11:43:10 +02:00
David Shah
ddd94edfe0 ice40: Fixes for inverted clocks 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-18 14:01:19 +02:00
David Shah
c75a924c3f ice40: Assign ArchArgs after packing 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-18 12:12:05 +02:00
Sergiusz Bazanski
d327a0afbb Revert "Make ice40::Arch thread-safe" 
This reverts commit 0816f447b7.
 2018-07-14 19:01:33 +01:00
Sergiusz Bazanski
2233040201 Revert "Remove legacy access to state via Arch" 
This reverts commit 18b4b31678.
 2018-07-14 18:50:15 +01:00
Sergiusz Bazanski
18b4b31678 Remove legacy access to state via Arch 2018-07-14 12:02:28 +01:00
Sergiusz Bazanski
0816f447b7 Make ice40::Arch thread-safe 
We move all non-chip data to be private and guard them with an R/W
mutex.

We then modify all calls that access these fields to lock/shared_lock
the mutex as required.

Profiling the code before and after is an exercise left to the reader
:).
 2018-07-13 12:35:39 +01:00
Clifford Wolf
b8a42ff53b Updates from clang-format 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-07-12 22:04:13 +02:00
David Shah
2e8c0c872f Add NPNR_ASSERT_FALSE, use in bitstream.cc 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-04 13:04:31 +02:00
David Shah
e0a851976f refactor: Replace assert with NPNR_ASSERT 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-04 12:15:23 +02:00