7210ee219d
sw: add div/mul instructions
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:14:57 +08:00
dd9cdfa7a3
sw: usb-epfifo: make buffer pointers static
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:14:20 +08:00
23b9962067
hw: foboot-bitstream: remove pmod debug comments
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:12:53 +08:00
fa690d63ed
hw: foboot-bitstream: clean up debug generation
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-20 13:12:29 +08:00
4f0507fc77
hw: foboot-bitstream: remove "generating firmware" message
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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
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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
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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
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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
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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
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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
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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"
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-11 11:50:55 +08:00
f5fd282d61
sw: usb-dev: remove errant i++
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-10 22:46:02 +08:00
5bcd6c44fb
deps: update valentyusb to working rev
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-10 20:53:30 +08:00
c98017cbc9
client: working on the client
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-08 20:47:42 +08:00
44ee19c8b4
valentyusb: use latest fix for metastable transmissions
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-06 14:06:17 +08:00
f34601df98
hw: lxbuildenv: fix uninitialized repo issue
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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
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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
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 15:50:08 +08:00
7f30d7f79b
sw: Makefile: hardcode project name to "foboot"
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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
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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
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 12:02:02 +08:00
ffd0285613
main: more work on fixing stuff
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 09:17:20 +08:00
74ec6be245
hw: remove gitignore
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 09:16:36 +08:00
8fe27d9371
Add 'hw/' from commit 'd812378c4d61f7c957ac4bcba15a8344fb7fb458'
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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
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 09:05:29 +08:00
d812378c4d
deps: update valentyusb
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 08:56:30 +08:00
84d4b40897
foboot: move software stuff to sw directory
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 08:54:51 +08:00
b06cd3b807
usb-epfifo: something is actually responding now
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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
d18e0cba0d
include: regenerate included headers
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-04 15:46:47 +08:00
a897c7f2fa
foboot-bitstream: remove cas module from imports
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It's unused in the current implementation.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-02-28 10:52:06 +08:00
6a147c4333
valentyusb: pull latest version
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-02-28 10:51:35 +08:00
2ac79e45e9
Makefile: don't re-set GIT_VERSION
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Use := to only set GIT_VERSION once.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-02-28 10:49:02 +08:00
