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Author SHA1 Message Date
Sean Cross
f88a76c3b0 sw: dfu: use macro for SPI flash offset 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 21:29:58 +08:00
Sean Cross
ae0df08489 sw: usb-desc: update landing URL and product name 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 21:29:29 +08:00
Sean Cross
3ad9853278 sw: usb-desc: mark product name as "static const" 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 21:28:40 +08:00
Sean Cross
58fba5b90e hw: use ce 5 
This lets us meet timing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 13:17:58 +08:00
Sean Cross
47cbc614a1 hw: deps: use valentyusb v0.3.3 
This version removes retry from the usb wishbone bridge.  It was
discovered that this causes crc errors.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 13:01:36 +08:00
Sean Cross
4050898b51 sw: use foosn as the manufacturer 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 12:33:07 +08:00
Sean Cross
b708810f00 sw: dfu: fix sentinal search on null first packet 
When the first packet is NULL, we weren't searching for the sentinal
properly.  Limit the amount of data we search for.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 12:29:42 +08:00
Sean Cross
a3f1ee6d44 sw: fix typo in main 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 11:22:18 +08:00
Sean Cross
050e88ac82 Merge branch 'master' of github.com:im-tomu/foboot 2019-05-20 11:02:53 +08:00
Sean Cross
8e537a9e09 foboot-main: get basic msc working 
It still doesn't do quite what we want, though.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 11:01:35 +08:00
Sean Cross
c5b5397529 initial commit of foboot main 
This is an initial commit of a non-recovery version of foboot.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 10:59:48 +08:00
Sean Cross
ab16cc0119 foboot-bitstream: add "version" block 
This block describes the various git version parameters.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-20 10:55:56 +08:00
Sean Cross
1913767ca7 tests: add simple program to test tx/rx 
This program generates random data and makes sure it is received.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-14 19:28:29 +08:00
Sean Cross
c89bb50ebc dfu: reset timeout to a sane value 
Somehow it defaults to something that is very unreasonable.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-14 19:26:12 +08:00
Sean Cross
7f025eac5c valentyusb: fix debug with multiple endpoints 
Now we properly inhibit other endpoints, and prevent the buffer from
draining when there's a debug packet.

This also prevents an early return from DEBUG READ.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-14 15:33:00 +08:00
Sean Cross
bbfd68ed72 foboot-bitstream: use 5 ce lines 
This doesn't change much, but it prevents nextpnr from getting into an
infinite loop.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-14 10:24:37 +08:00
Sean Cross
0f5267122b valentyusb: use generic IO blocks 
There's no need to use ICE40-specific IO blocks.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-14 10:23:49 +08:00
Sean Cross
8f5de3fb62 sw: usb-epfifo: remove dead code and fix usb behavior 
This fixes USB behavior so it's much more reliable.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-12 21:48:03 +08:00
Sean Cross
8d6c3dc5fc deps: valentyusb: use new usb pipeline 
This pipeline removes the timing violations we had, and improves the
debug bridge by quite a lot.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-12 21:47:11 +08:00
Sean Cross
7ba476b057 examples: usb-cdcacm: fix example with good usb core 
The USB core has changed a bit, and this fixes this example so that it
works with the new USB core.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-12 21:36:51 +08:00
Sean Cross
2adac57076 sw: epfifo: use new fifo arrangement 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-10 23:41:18 +08:00
Sean Cross
c5eb487951 deps: valentyusb: add fixes from usbalex 
These fix the timing of the USB connection.

These fixes also fix issues with USB debugging.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-10 22:11:17 +08:00
Sean Cross
5b71eeea7d foboot-bitstream: tristate pulldown on evt board 
The EVT board has a pulldown, in case we want to do USB LS.  This causes
issues on some hubs, because they end up with weak pullups, which throws
off enumeration.

Set it to a tristate input, which fixes this behavior.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-05 17:40:07 -07:00
Sean Cross
7221e0328b examples: riscv-blink: don't reset usb on launch 
This enables debugging, because the connection will remain active.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-01 14:34:05 -07:00
Sean Cross
3a6ae4679a deps: valentyusb: fix "STALL" error on debug packets 
We weren't properly ACKing debug packets.  This fixes that.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-01 14:21:54 -07:00
Sean Cross
940755b8fb doc: add BOOT-SEQUENCE.md 
This is an initial draft of boot variables.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-01 14:08:54 -07:00
Sean Cross
e7493017a0 sw: initial commit of boot options 
This adds the ability to configure the program that will be loaded.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-01 14:08:30 -07:00
Sean Cross
9c7db8a84a sw: usb-desc: fix usb version 
It should be 2.1, not 2.10.  This fixes Windows enumeration.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-05-01 08:59:42 -07:00
Sean Cross
21be05f8ab hw: foboot-bitstream: simplify duplicate CRG code 
Much of the clock resource generator was duplicated for the two options:
PLL and adder.  Remove this artifical distinction and reuse much of the
CRG code.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-29 16:37:51 -07:00
Sean Cross
e3a04fefa3 Merge branch 'master' of github.com:im-tomu/foboot 2019-04-29 16:33:26 -07:00
Sean Cross
2d26d2f067 fobooster: add initial, non-working version 
This will be used to update Foboot.  It is currently unfinished.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-28 19:43:06 -07:00
Sean Cross
6caffc1eb6 hw: deps: have valentyusb reset itself on error 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-28 16:43:12 +08:00
Sean Cross
39b3fb6507 hw: rtl: use latest release version of vexriscv 
This doesn't appear to work yet, but is the latest upstream release
version of vexriscv.

Need to investigate more into why it's failing.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-26 09:53:51 +08:00
Sean Cross
5d6a0d0ec7 sw: webusb: fix landing descriptor warning 
For some reason, -flto didn't like the "extern const struct" definition.
Hide the variable now and use an accessor function to silence this
warning, which may have caused other issues with stability.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-26 09:22:11 +08:00
Sean Cross
ba310ab8e2 hw: rtl: add missing files 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-25 23:35:51 +08:00
Sean Cross
d147af1e6a hw: add some vexriscv experiments 
We're trying to improve performance and reduce core size.

This uses a newer version of the vexriscv core.  It has a shorter
pipeline, with better exception handling.  It also properly initializes
registers.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-25 23:23:54 +08:00
Sean Cross
ee640fdb57 hw: foboot-bitstream: fix csr offsets 
These offsets can shift.  Ensure they stay the same during subsequent
rebuilds.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-25 17:40:37 +08:00
Sean Cross
b8145bde36 sw: use correct abi 
The CPU we're using has no div/mul instructions, so use the rv32i ABI
instead of rv32im.

This saves about 15%.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-25 13:29:27 +08:00
Sean Cross
bee41ec891 hw: valentyusb: better buffer draining on reset 
Pull in improved support for draining the buffers when going into reset.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-25 13:27:55 +08:00
Sean Cross
cd6151b009 sw: add -flto to cflags 
This reduces codesize by 15% (~1 kB).

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-25 12:07:13 +08:00
Sean Cross
c4f95748a6 deps: valentyusb: change url to im-tomu organization 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-24 13:38:46 +08:00
Sean Cross
ace0d2c22f hw: valentyusb: sync wishbone ep1 fixes 
This fixes EP1+ so that interleved accesses work.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-23 17:25:06 +08:00
Sean Cross
f94da96db4 hw: foboot-bitstream: properly hook up cpu reset override 
It turns out that just assigning a value isn't enough in Python to
assign the signal.  You need to override the dictionary entry.

With this patch, it is now possible to dynamically adjust the CPU reset
entrypoint, which is handy for debugging.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-23 17:21:16 +08:00
Sean Cross
646388fcb7 sw: dfu: fix calculation for address offset 
We were using the wrong offset for address calculation.  Use the block
size, rather than the program size.  This wasn't an issue before, because
the block size and the program size were both 256 bytes.  Now the block
size can be 1024 bytes.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-22 15:51:57 +08:00
Sean Cross
1a5867c5e5 hw: foboot-bitstream: invert logic on pll selection 
The pll is necessary to get consistent performance, but disabling it can
sometimes help meet synthesis timing.  Ensure the pll is enabled, unless
explicitly disabled with this switch.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-22 15:09:48 +08:00
Sean Cross
b3050ae299 sw: spi: comment out dead code 
This code emitted a warning.  It's not used, so leave it commented for now.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-22 15:08:49 +08:00
Sean Cross
b8151d46a4 sw: ld: limit bootloader to 4096 bytes 
It doesn't need any more, and we can use the rest of RAM to load a
temporary program.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-22 14:49:20 +08:00
Sean Cross
6e653b98d6 sw: support loading directly to RAM 
If a sentinal is present, allow dfu-util to load a program directly to
RAM.  This saves us the step of writing to flash.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-22 14:42:14 +08:00
Sean Cross
85bb787536 sw: support 1024-byte DFU writes 
This increases performance of DFU write commands.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-22 14:19:09 +08:00
Sean Cross
26a327486f sw: minor shrink of sw code size 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-22 12:03:01 +08:00