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Author SHA1 Message Date
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
a3298226e5 sw: getting dfu working about to add debug bridge 
We're having issues getteing DFU working.  It almost works, but has some
issues.  Unfortunately, we're out of space for printf.

Now we will work to get the UART Wishbone bridge working, to move
forward on debugging support.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-26 09:39:55 +08:00
Sean Cross
b0afd2b0ae sw: puts: don't eat first character 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-25 18:59:57 +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
7210ee219d sw: add div/mul instructions 
For foboot, we're using a CPU without a divide or multiply instruction,
to save gates.  Replace these with software implementations.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-21 11:01:46 +08:00
Sean Cross
2139317530 sw: include: sync csr.h and mem.h 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 13:14:57 +08:00
Sean Cross
dd9cdfa7a3 sw: usb-epfifo: make buffer pointers static 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 13:14:20 +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
03327067ff sw: add spi base 
This is taken from fomu-flash, and needs to be adapted.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-20 11:23:19 +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
ff4774ebc3 sw: usb-epfifo: fixups to remove errors in enumeration 
With these fixups, we can now enumerate successfully.

The code is a mess, but this is the first functionally-correct build.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-11 11:51:19 +08:00
Sean Cross
9909b3bbdb sw: usb-desc: set product name to "Fomu Bootloader" 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-11 11:50:55 +08:00
Sean Cross
f5fd282d61 sw: usb-dev: remove errant i++ 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 22:46:02 +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
d64f88d995 sw: usb-epfifo: mostly-working commit 
Still has issues with large reads.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 22:42:14 +08:00
Sean Cross
c180c1b1b8 sw: usb-epfifo: increase packet size to 64 bytes 
This masks some problems we're seeing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 22:41:22 +08:00
Sean Cross
a552d1eb91 usb-dev: limit the size of outgoing packets 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 22:40:52 +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
69f7b5d836 csr: replace with latest generated version 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 20:53:30 +08:00
Sean Cross
c98017cbc9 client: working on the client 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-10 15:25:33 +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
c0842737bf sw: usb-unififo: add code to test usb RX 
This just reads SOF packets and validates they're correct.  This ensures
that bitstuffing is good.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 15:50:36 +08:00
Sean Cross
ce071dac67 sw: main: remove usb_sync() call 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 15:50:08 +08:00
Sean Cross
7f30d7f79b sw: Makefile: hardcode project name to "foboot" 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 15:49:21 +08:00
Sean Cross
380a4f1fa2 sw: unififo: print out SOF frames, to ensure link integrity 
Print out the SOF frames so that we can make sure the Rx path is good.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 14:52:42 +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
c78e9ab214 sw: add missing include files 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 12:02:02 +08:00
Sean Cross
ffd0285613 main: more work on fixing stuff 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 11:54:48 +08:00
Sean Cross
1c38c58a6f Merge branch 'master' of git.xobs.io:xobs/foboot 2019-03-05 09:18:20 +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
Sean Cross
e4af98b4aa generated: update generated csr, mem, and ld files 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 09:05:29 +08:00
Sean Cross
d812378c4d deps: update valentyusb 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 08:56:30 +08:00
Sean Cross
84d4b40897 foboot: move software stuff to sw directory 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-03-05 08:54:51 +08:00