bcbc7319c1
fomu-flash: add -l (rom) option to load a rom
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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
4ca2218403
ice40: experimental rom patching support
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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
13464db5de
fomu-flash: map F_RESET differently for original Pi
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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
987ae9071a
fomu-flash: fix pinspec to match hacker version silk
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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
e3f110f267
Merge pull request #1 from osresearch/master
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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
676bcb33a1
README: fix some typos
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-01-02 18:38:45 +08:00
fb72772b5a
README: add pinout and connection instructions
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Signed-off-by: Sean Cross <sean@xobs.io>
2019-01-02 18:37:25 +08:00
556fdb8e1b
spi: set sr2 quirk by default
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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
27dec515e7
enable capacity overriding
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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
9b1b9b8a88
fomu-flash: implement -k security register stuff
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 23:03:38 -05:00
ff1f8583af
spi: get security register stuff working
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 23:03:25 -05:00
c0c9f22748
spi: add the ability to read and write security
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 22:18:26 -05:00
70591122af
fomu-flash: print out device strings as part of -i
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 22:09:57 -05:00
09f0db5ca7
spi: add strings to device id
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 22:09:49 -05:00
91b4a74dc8
spi: flush stdout
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 20:57:34 -05:00
f4ac6ea812
spi: handle qpi better for command handling
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 20:53:22 -05:00
af1dff1e28
spi: use quirks for reading from SR
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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
edd8824a74
spi: add quirks system
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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
fc6d6a575d
spi: print out progress while writing
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 20:40:01 -05:00
6b6266c1de
spi: issue "wake from reset" as part of spiReset()
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 20:38:31 -05:00
4e411774c0
spi: remove unused prototype
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-18 20:33:53 -05:00
f4d2c46eb3
fomu-flash: print out status registers as part of id
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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
fed97ce846
fomu-flash: add -i option to print id codes
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-11-29 04:27:29 -05:00
a9af9820be
spi: add function to read various id codes
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-11-29 04:27:19 -05:00
cddbe4c90c
fomu-flash: add spi speed flag
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-11-29 03:51:49 -05:00
3beccf1b03
documentation: add readme and license file
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-17 22:09:00 +08:00
a8de1b56dc
fomu-flash: add the ability to specify more pins
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Signed-off-by: Sean Cross <sean@xobs.io>
2018-12-17 22:07:10 +08:00
253e82b5cb
fomu-flash: add offset parameter to -p
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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
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Signed-off-by: Your Name <you@example.com>
2018-11-28 13:19:51 -05:00
Your Name
c2f21f1df1
rearrange pin definitions
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Signed-off-by: Your Name <you@example.com>
2018-11-28 11:02:49 -05:00
Your Name
23616a1c4b
initial commit
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Signed-off-by: Your Name <you@example.com>
2018-11-28 10:52:27 -05:00
