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38 Commits

Author SHA1 Message Date
Sean Cross c0df98f66e hw: correct crystal pin for Hacker board 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 17:08:01 +08:00
Sean Cross 6d9028f505 hw: foboot-bitstream: create multiboot image after build 
This fixes an issue where the directory wasn't created first.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 16:19:30 +08:00
Sean Cross 7ee97214e6 foboot-bitstream: generate multiboot and print helpful message 
Generate a multiboot version of the bitstream image.  While we're at it,
print a helpful message indicating what each output image is.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 11:07:39 +08:00
Sean Cross 2a7e431947 hw: foboot-bitstream: support building bios 
Now that the failsafe bios has stabilized, support building it as part
of the ROM.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 09:42:29 +08:00
Sean Cross 6435aec3db foboot-bitstream: add hacker revision 
Untested commit -- this should add support for the Hacker version of the
PCB.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-05 18:58:19 +08:00
Sean Cross db65ccc199 hw: document warmboot some more 
Realized that there are 5 images and not 4.  With this, everything
works as it should.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-05 17:34:10 +08:00
Sean Cross 4c3f0f2402 valentyusb: use experimental shorter pipeline 
This helps to improve timing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-03 22:11:02 +08:00
Sean Cross 1660681d38 hw: add 2-stage-1024-cache 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-03 21:57:53 +08:00
Sean Cross c33d86adb9 foboot-bitstream: fix warmboot and add rgb block 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-02 18:11:58 +08:00
Sean Cross 8599ec7007 hw: bitstream: simplify command line argument parsing 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-02 13:03:47 +08:00
Sean Cross 0e720d5acc README: add information about sw and hw and building 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-01 10:10:13 +08:00
Sean Cross 2fd01b8303 foboot-bitstream: more help description, add dvt support 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-01 10:09:20 +08:00
Sean Cross 6595eb1ef1 valentyusb: increase incoming buffer to 128 bytes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-28 11:12:32 +08:00
Sean Cross 7191c12490 wip: just need to get WARMBOOT working 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-28 11:11:36 +08:00
Sean Cross 3d6acaf51e sw: wip commit -- getting dfu working 
Now that we have SPI and USB both working, we can start to close the
loop and get DFU working.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-25 17:39:06 +08:00
Sean Cross 23b9962067 hw: foboot-bitstream: remove pmod debug comments 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 13:12:53 +08:00
Sean Cross fa690d63ed hw: foboot-bitstream: clean up debug generation 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 13:12:29 +08:00
Sean Cross 4f0507fc77 hw: foboot-bitstream: remove "generating firmware" message 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 13:12:08 +08:00
Sean Cross f3d779787b hw: foboot-bitstream: add reset to usb_48 
This is required to meet timing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 13:11:45 +08:00
Sean Cross b09333f023 hw: add spi and new vexriscv to foboot 
This is the beginning of having SPI.

Also add a new two-stage pipeline.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 11:25:09 +08:00
Sean Cross c7632ae8bd deps: litex: sync with latest version 
This pulls in several fixes, including custom vexriscv modules.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-17 17:33:31 +01:00
Sean Cross 4aa3861c03 hw: deps: update to first feature-complete valentyusb 
This is the first version of `valentyusb` that successfully enumerates
without any errors.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-11 11:52:03 +08:00
Sean Cross 5bcd6c44fb deps: update valentyusb to working rev 
This revision works, although more tuning needs to be done.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 22:43:28 +08:00
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