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Author SHA1 Message Date
Sean Cross
9506159380 fomu-flash: disable ICE40_DEBUG_PATCH 
Since we've got ice40 working, we don't need to debug it anymore.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-26 14:49:11 +08:00
Sean Cross
89af26047e ice40: rewrite matching heuristic to increase reliability 
Instead of looping through a small window, figure out the various bit
positions and offsets.  Then, as we scan through, validate that we've
found the proper offsets.

This should get us to 100% reliability.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-26 14:48:05 +08:00
Sean Cross
9876d92981 fpga: convert tabs to spaces 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-26 13:10:19 +08:00
Sean Cross
f4297532d0 fomu-flash: make DEBUG_ICE40_PATCH work better 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-26 13:08:13 +08:00
Sean Cross
4156a37d72 fomu-flash: convert tabs to spaces 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-26 13:03:09 +08:00
Sean Cross
f2ae56a13e ice40: convert tabs to spaces 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-26 13:02:41 +08:00
Sean Cross
61151b4618 fomu-flash: add debug hack to fix ice40 stuff 
This will write data to a file, rather than to SPI.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-26 13:01:04 +08:00
Sean Cross
d6bff65d0b Merge branch 'master' of github.com:im-tomu/fomu-flash 2019-02-25 22:17:38 +08:00
Sean Cross
ea6c170023 ice40: lower fuzz size to improve patcher reliability 
The fuzz size should be made smaller, because we're getting too many false positives.

Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-25 22:16:31 +08:00
Sean Cross
d2b4ff089d ice40: convert from dos to unix line endings 
Signed-off-by: Sean Cross <sean@xobs.io>
 2019-02-25 18:38:53 +08:00
Sean Cross
fb21ad75e2
Merge pull request #3 from tari/hardware-spi 
Document the requirement for hardware SPI
 2019-02-25 17:11:10 +08:00
Sean Cross
5e3ac61921
Merge branch 'master' into hardware-spi 2019-02-25 17:10:11 +08:00
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
Peter Marheine
eb328612b2 Document the requirement for hardware SPI 
I spent a while fighting with my hardware before working this out- if
SPI is disabled in the kernel reads will return all 1s which is very
confusing and looks more like something is wired up wrong when it's
actually correct.
 2019-02-25 14:56:02 +11:00
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