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128 Commits

Author SHA1 Message Date
Sean Cross 4b6ad47705 sw: spi-gpio: remove unused files 
These were moved into spi.c to allow them to be inlined.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 11:04:43 +08:00
Sean Cross 91a23d808c sw: Makefile: fix third_party and package naming 
With these changes, litex mode should now work.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 10:51:08 +08:00
Sean Cross 2a7e431947 hw: foboot-bitstream: support building bios 
Now that the failsafe bios has stabilized, support building it as part
of the ROM.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 09:42:29 +08:00
Sean Cross a9a5f0cc0d sw: minor removal of unused code 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 09:35:50 +08:00
Sean Cross d6ae51f69b sw: ld: add support for litex build 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 09:35:23 +08:00
Sean Cross 2437e8b5c1 sw: Makefile: support litex build environment 
Allow this software package to be built from within the Litex build system.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-06 09:34:26 +08:00
Sean Cross 6435aec3db foboot-bitstream: add hacker revision 
Untested commit -- this should add support for the Hacker version of the
PCB.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-05 18:58:19 +08:00
Sean Cross b40a9bad43 rgb: fix typo in macro 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-05 18:17:11 +08:00
Sean Cross b5f17acdf6 sw: enable fancy led effects 
Support different LED patterns depending on the mode.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-05 18:10:05 +08:00
Sean Cross 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
Sean Cross 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
Sean Cross 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
Sean Cross 7d091a72b9 main: poll dfu in main loop 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-05 15:10:19 +08:00
Sean Cross 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
Sean Cross 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
Sean Cross 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
Sean Cross 2b0575889f usb-dev: remove commented-out printf statements 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-05 13:20:54 +08:00
Sean Cross 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
Sean Cross d72925fdeb sw: experimental improved dfu performance 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-03 22:11:31 +08:00
Sean Cross 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
Sean Cross 1660681d38 hw: add 2-stage-1024-cache 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-03 21:57:53 +08:00
Sean Cross 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
Sean Cross 85b6d75882 sw: update to latest generated files 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-02 18:11:25 +08:00
Sean Cross dbc0f81715 usb: re-enable extra usb descriptors 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-02 18:11:09 +08:00
Sean Cross 851e54e70c main: initialize rgb driver 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-02 18:10:56 +08:00
Sean Cross 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
Sean Cross 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
Sean Cross 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
Sean Cross 8599ec7007 hw: bitstream: simplify command line argument parsing 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-04-02 13:03:47 +08:00
Sean Cross 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
Sean Cross 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
Sean Cross 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
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