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33 Commits

Author SHA1 Message Date
Sean Cross 7fb6e4bb7b README: mention the existence of the `-l` command 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-25 13:56:22 +08:00
Sean Cross bcbc7319c1 fomu-flash: add `-l (rom)` option to load a rom 
This can be used to quickly develop a bootloader, or other boot
rom for an ICE40.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-25 13:51:27 +08:00
Sean Cross 4ca2218403 ice40: experimental rom patching support 
We can now do away with the `iceunpack`/`icebram`/`icepack` dance and
simply patch files on the fly.  This should simplify development,
since you only need two files (the bitstream and the replacement rom),
rather than four files (the bitstream, the replacement rom, the
random contents, and the output file).

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-25 13:49:38 +08:00
Sean Cross 13464db5de fomu-flash: map F_RESET differently for original Pi 
Pin 13, which we use as F_RESET, was originally routed to BCM Pin 21.
All other revisions of the board map it to BCM Pin 27.

Check for the original version of the board, and re-assign F_RESET as
necessary.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-11 10:27:37 +08:00
Sean Cross 987ae9071a fomu-flash: fix pinspec to match hacker version silk 
The silkscreen on the hacker version uses "S" for chip select and
"C" for clock.  Have the help screen and "-g" parameter use this
convention for arguments.

This fixes Github issue #2.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-01-14 09:28:29 +08:00
Sean Cross e3f110f267
Merge pull request #1 from osresearch/master 
erase the security register pages before writing
 2019-01-14 09:04:42 +08:00
Trammell hudson 20978ad4e5
erase the security register pages before writing 2019-01-13 20:01:51 -05:00
Sean Cross 676bcb33a1 README: fix some typos 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-01-02 18:38:45 +08:00
Sean Cross fb72772b5a README: add pinout and connection instructions 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-01-02 18:37:25 +08:00
Sean Cross 556fdb8e1b spi: set sr2 quirk by default 
most chips, it seems, write sr2 just after sr1 instead of having
a separate command.  Set this quirk by default.

Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-19 00:01:58 -05:00
Sean Cross 27dec515e7 enable capacity overriding 
We have different-sized SPI flash chips, so when possible set the
capacity based on various id codes.

Also allow for manually overriding capacity with the -b option.

Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-19 00:00:25 -05:00
Sean Cross 9b1b9b8a88 fomu-flash: implement -k security register stuff 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 23:03:38 -05:00
Sean Cross ff1f8583af spi: get security register stuff working 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 23:03:25 -05:00
Sean Cross c0c9f22748 spi: add the ability to read and write security 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 22:18:26 -05:00
Sean Cross 70591122af fomu-flash: print out device strings as part of -i 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 22:09:57 -05:00
Sean Cross 09f0db5ca7 spi: add strings to device id 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 22:09:49 -05:00
Sean Cross 91b4a74dc8 spi: flush stdout 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:57:34 -05:00
Sean Cross f4ac6ea812 spi: handle qpi better for command handling 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:53:22 -05:00
Sean Cross af1dff1e28 spi: use quirks for reading from SR 
Different chips handle reading from SR in different ways.

Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:52:58 -05:00
Sean Cross edd8824a74 spi: add quirks system 
Not all SPI chips are the same.  Add a system to differentiate them.

Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:52:24 -05:00
Sean Cross fc6d6a575d spi: print out progress while writing 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:40:01 -05:00
Sean Cross 6b6266c1de spi: issue "wake from reset" as part of spiReset() 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:38:31 -05:00
Sean Cross 4e411774c0 spi: remove unused prototype 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:33:53 -05:00
Sean Cross f4d2c46eb3 fomu-flash: print out status registers as part of id 
Print the contents of SR1, SR2, and SR3.  Not all chips have SR3,
so this may be 0xff.

Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-18 20:32:10 -05:00
Sean Cross fed97ce846 fomu-flash: add -i option to print id codes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-11-29 04:27:29 -05:00
Sean Cross a9af9820be spi: add function to read various id codes 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-11-29 04:27:19 -05:00
Sean Cross cddbe4c90c fomu-flash: add spi speed flag 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-11-29 03:51:49 -05:00
Sean Cross 3beccf1b03 documentation: add readme and license file 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-17 22:09:00 +08:00
Sean Cross a8de1b56dc fomu-flash: add the ability to specify more pins 
Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-17 22:07:10 +08:00
Sean Cross 253e82b5cb fomu-flash: add offset parameter to -p 
Add an offset parameter to -p.

Signed-off-by: Sean Cross <sean@xobs.io>
 2018-12-17 21:40:40 +08:00
Your Name 09fe20efda fomu-flash: first full commit 
Signed-off-by: Your Name <you@example.com>
 2018-11-28 13:19:51 -05:00
Your Name c2f21f1df1 rearrange pin definitions 
Signed-off-by: Your Name <you@example.com>
 2018-11-28 11:02:49 -05:00
Your Name 23616a1c4b initial commit 
Signed-off-by: Your Name <you@example.com>
 2018-11-28 10:52:27 -05:00