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[devbundle] Create a devbundle for out-of-tree development #27663

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@cfrantz cfrantz commented Jul 18, 2025

Create a devbundle to facilitate out-of-tree development of OS/applications. Currently, includes:

  • Opentitantool
  • FPGA bitstreams for CW310 and CW340 FPGA boards.
  • ROM_EXTs for CW310 and CW340 FPGA boards.
  • Fake application keys for use with the ROM_EXTs.

Create a devbundle to facilitate out-of-tree development of
OS/applications.  Currently, includes:

- Opentitantool
- FPGA bitstreams for CW310 and CW340 FPGA boards.
- ROM_EXTs for CW310 and CW340 FPGA boards.
- Fake application keys for use with the ROM_EXTs.

Signed-off-by: Chris Frantz <cfrantz@google.com>
@cfrantz cfrantz requested a review from moidx July 18, 2025 17:30
package(default_visibility = ["//visibility:public"])

bitstream_splice(
name = "bitstream_fpga_hyper310",
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Would it be helpful at all to release a full cache entry like

bitstream_manifest_fragment(

(might only be interesting if you are feeding back into the opentitan repo to build software targets, though)

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I second this idea, unless you are sure that you will never want to splice, it might be useful to have more than just the bitstream.

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4 participants