litex/README

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[> Milkymist-NG system-on-chip
------------------------------
This is the next-generation Milkymist(tm) system-on-chip design,
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introducing two key features:
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* Built on the powerful Migen VLSI logic design system.
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* Increased system memory performance thanks to LASMI.
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This translates to more development productivity, better video resolution
and quality, ease of designing complex hardware accelerators, and much
more flexibility in hardware designs.
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The Milkymist-NG SoC supports the Mixxeo and the Milkymist One.
Obtain yours at http://milkymist.org
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[> Instructions (software)
--------------------------
1. Compile and install binutils. Take the latest version from GNU.
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mkdir build && cd build
../configure --target=lm32-elf
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make
make install
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2. Compile and install GCC 4.5. Take gcc-core and gcc-g++ from GNU.
rm -rf libstdc++-v3
mkdir build && cd build
../configure --target=lm32-elf --enable-languages="c,c++" --disable-libgcc --disable-libssp
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make
make install
3. Obtain compiler-rt and set the CRTDIR environment variable to the root of
its source tree.
svn co http://llvm.org/svn/llvm-project/compiler-rt/trunk compiler-rt
export CRTDIR=/path_to/compiler-rt
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4. Build and flash the BIOS (part of this source distribution).
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cd software/bios
make
make flash
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The second command requires m1nor, FJMEM and UrJTAG.
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These tools can be found at:
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https://github.com/milkymist/fjmem-m1
http://urjtag.org
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[> Instructions (gateware)
--------------------------
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First, download and install Migen from:
https://github.com/milkymist/migen
Once this is done, build the bitstream with:
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./make.py [-p <platform>] -l
This will generate the build/soc-<platform>.bit programming file
and load it with UrJTAG.
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A new BIOS needs to be built and flashed for the -NG SoC.
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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)
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2011-2013 Sebastien Bourdeauducq. Other authors retain ownership of their
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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.