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
fd76536351
usb-dev: reboot to image 0
...
Since this is a failsafe bootloader, reboot to Image 0.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 17:33:28 +08:00
eaa0d63ccb
usb-epfifo: fix DATA0/DATA1 swaps for Tx
...
We were sometimes sending DATA0 instead of DATA1. Fix that.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 17:33:02 +08:00
7d091a72b9
main: poll dfu in main loop
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 15:10:19 +08:00
7bcc8529d6
dfu: initial working commit
...
This commit actually works, but still has a few issues.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 15:09:52 +08:00
ac349ce1a1
spi: support 32- and 64-kB erase blocks
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 15:09:04 +08:00
cbf4958236
usb-epfifo: remove extra USB_NAK setting
...
This works around an issue, though it's still not properly working.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 13:21:09 +08:00
2b0575889f
usb-dev: remove commented-out printf statements
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 13:20:54 +08:00
c92af747cd
spi: actually transmit data
...
We were sending data on CS, not on CLK.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-05 13:19:46 +08:00
d72925fdeb
sw: experimental improved dfu performance
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-03 22:11:31 +08:00
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
1660681d38
hw: add 2-stage-1024-cache
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-03 21:57:53 +08:00
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
85b6d75882
sw: update to latest generated files
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-02 18:11:25 +08:00
dbc0f81715
usb: re-enable extra usb descriptors
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-02 18:11:09 +08:00
851e54e70c
main: initialize rgb driver
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-02 18:10:56 +08:00
85bdc7991c
rgb: add initial rgb code
...
It initializes the rgb driver, and can write to its registers.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-02 18:10:17 +08:00
a3c05bd19e
sw: system: add reset key to reboot()
...
Add the key `0xac` to the reset command, to prevent accidental resets.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-02 16:40:09 +08:00
33aec0876b
sw: usb-epfifo: disable usb events before disconnect
...
If we don't disconnect the usb event system, then we will lock up
in an irq storm.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-02 16:39:13 +08:00
8599ec7007
hw: bitstream: simplify command line argument parsing
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-04-02 13:03:47 +08:00
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
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
0a4c73a63a
sw: wip commit -- dfu state machine works, spi broken
...
Need to fix SPI and SB_WARMBOOT, but the DFU state machine now works.
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-28 11:13:25 +08:00
6595eb1ef1
valentyusb: increase incoming buffer to 128 bytes
...
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-28 11:12:32 +08:00
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
