xobs/foboot
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73 Commits 2 Branches 1 Tag 2.4 MiB
2d7c7794f5
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15 Commits

Author SHA1 Message Date
Sean Cross
2d7c7794f5 hw: foboot-bitstream: remove debug pins, use epfifo 
Remove the debug pins to let timing close.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 21:06:37 +08:00
Sean Cross
0c6e444789 hw: foboot-bitstream: add -relut and friends to nextpnr 
Shrink the resulting gate count by adding -relut and adjusting the
number of luts that a CE signal can use.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 21:05:51 +08:00
Sean Cross
8aed600cd6 hw: foboot-bitstream: specify additional clock domain constraints 
Specify all the clock domain constraints for every possible signal, to
work around the fact that nextpnr currently will pick one and ignore the
rest.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 21:05:12 +08:00
Sean Cross
6638801886 hw: foboot-bitstream: remove clk48_in signal 
It's unused.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 21:04:19 +08:00
Sean Cross
8fb6b5977b hw: foboot-bitstream: remove unused clk48 net 
We only use the raw and usb48 nets.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 20:53:58 +08:00
Sean Cross
13360015db Merge branch 'master' of github.com:xobs/foboot 2019-03-08 20:49:13 +08:00
Sean Cross
d603113b6f foboot-bitstream: send clk48 through shifter, then through pll 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-08 20:47:42 +08:00
Sean Cross
44ee19c8b4 valentyusb: use latest fix for metastable transmissions 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-06 14:06:17 +08:00
Sean Cross
f34601df98 hw: lxbuildenv: fix uninitialized repo issue 
We would get stuck in a loop.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 22:08:11 +08:00
Sean Cross
3df59a866d metastable fix: wip 
Trying to figure out what's causing this problem.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 20:28:54 +08:00
Sean Cross
73176b65de hw: lxbuildenv: fix detection of .git directory 
It was giving an incorrect path, which would cause it to refresh
submodules during every build.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 13:20:54 +08:00
Sean Cross
350497924e README: add simple readme file 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 09:17:20 +08:00
Sean Cross
74ec6be245 hw: remove gitignore 
It's stored in the root now

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 09:16:52 +08:00
Sean Cross
1c8634e954 gitmodules: add hw deps 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 09:16:36 +08:00
Sean Cross
8fe27d9371 Add 'hw/' from commit 'd812378c4d61f7c957ac4bcba15a8344fb7fb458' 
git-subtree-dir: hw
git-subtree-mainline: e4af98b4aa
git-subtree-split: d812378c4d
 2019-03-05 09:05:50 +08:00