litex/README

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[> Milkymist-NG system-on-chip
------------------------------
This is the next-generation Milkymist(tm) system-on-chip design,
introducing two key innovations:
* Built on the powerful Migen VLSI logic design system.
* Increased system memory performance thanks to a new architecture
(ASMI) containing a transaction-reordering and superscalar controller.
The Milkymist-NG SoC supports the Milkymist One board. Obtain yours from:
http://milkymist.org
Note that the -NG version is still experimental work in progress. For the
production version of Milkymist SoC, visit:
https://github.com/milkymist/milkymist
[> Instructions
---------------
First, download and install Migen from:
https://github.com/milkymist/migen
Once this is done, build the bitstream with:
python3 build.py
This will generate the build/soc.bit programming file.
The SoC expects a bootloader to be located in flash at 0x860000, just
like the legacy SoC did. However, there is no binary compatibility and a
new BIOS needs to be built and flashed for the -NG SoC.
You can find the source code of a compatible BIOS in the software/bios
directory. It compiles with Clang and LLVM by default, and you can find
the modified version with support for LM32 at:
https://github.com/milkymist/llvm-lm32
https://github.com/milkymist/clang-lm32
Enjoy!
[> Misc
-------
Code repository:
https://github.com/milkymist/milkymist-ng
Send questions, comments and patches to devel [AT] lists.milkymist.org
We are also on IRC: #milkymist on the Freenode network.
Milkymist-NG is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, version 3 of the License. This program is
distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
The authors grant the additional permissions that the code can be used in
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conjunction with the LatticeMico32 CPU core from Lattice.
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Unless otherwise noted, Milkymist-NG's source code is copyright (C)
2011-2012 Sebastien Bourdeauducq. Other authors retain ownership of their
contributions. If a submission can reasonably be considered independently
copyrightable, it's yours and I encourage you to claim it with
appropriate copyright notices. This submission then falls under the
"otherwise noted" category. All submissions must use a license compatible
with the GPL and the additional permissions above.