7191c12490
wip: just need to get WARMBOOT working
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-28 11:11:36 +08:00
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
b0afd2b0ae
sw: puts: don't eat first character
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-25 18:59:57 +08:00
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
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
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
dd9cdfa7a3
sw: usb-epfifo: make buffer pointers static
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:14:20 +08:00
23b9962067
hw: foboot-bitstream: remove pmod debug comments
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:12:53 +08:00
fa690d63ed
hw: foboot-bitstream: clean up debug generation
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:12:29 +08:00
4f0507fc77
hw: foboot-bitstream: remove "generating firmware" message
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:12:08 +08:00
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
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
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
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
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
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
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
f5fd282d61
sw: usb-dev: remove errant i++
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-10 22:46:02 +08:00
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
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
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
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
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
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
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
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
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
69f7b5d836
csr: replace with latest generated version
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-10 20:53:30 +08:00
c98017cbc9
client: working on the client
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-10 15:25:33 +08:00
13360015db
Merge branch 'master' of github.com:xobs/foboot
2019-03-08 20:49:13 +08:00
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
44ee19c8b4
valentyusb: use latest fix for metastable transmissions
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-06 14:06:17 +08:00
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
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
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
ce071dac67
sw: main: remove usb_sync() call
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 15:50:08 +08:00
7f30d7f79b
sw: Makefile: hardcode project name to "foboot"
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 15:49:21 +08:00
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
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
c78e9ab214
sw: add missing include files
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 12:02:02 +08:00
ffd0285613
main: more work on fixing stuff
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 11:54:48 +08:00
1c38c58a6f
Merge branch 'master' of git.xobs.io:xobs/foboot
2019-03-05 09:18:20 +08:00
350497924e
README: add simple readme file
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 09:17:20 +08:00
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
1c8634e954
gitmodules: add hw deps
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 09:16:36 +08:00
8fe27d9371
Add 'hw/' from commit 'd812378c4d61f7c957ac4bcba15a8344fb7fb458'
...
git-subtree-dir: hw
git-subtree-mainline: e4af98b4aad812378c4d
2019-03-05 09:05:50 +08:00
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
d812378c4d
deps: update valentyusb
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 08:56:30 +08:00
84d4b40897
foboot: move software stuff to sw directory
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 08:54:51 +08:00
b06cd3b807
usb-epfifo: something is actually responding now
...
Making good progress. Still not reliable, but there's something to work on now.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-04 15:46:59 +08:00
