README

   1 [> Milkymist-NG system-on-chip
   2 ------------------------------
   3
   4 This is the next-generation Milkymist(tm) system-on-chip design,
   5 introducing two key innovations:
   6  * Built on the powerful Migen VLSI logic design system.
   7  * Increased system memory performance thanks to a new architecture
   8    (ASMI) containing a transaction-reordering and superscalar controller.
   9
  10 The Milkymist-NG SoC supports the Milkymist One board. Obtain yours from:
  11   http://milkymist.org
  12
  13 Note that the -NG version is still experimental work in progress. For the
  14 production version of Milkymist SoC, visit:
  15   https://github.com/milkymist/milkymist
  16
  17 [> Instructions (software)
  18 --------------------------
  19 1. Compile and install binutils. Take the latest version from GNU.
  20   ./configure --target=lm32-elf
  21   make
  22   make install
  23
  24 2. Compile and install LLVM and Clang.
  25   git clone git://github.com/milkymist/llvm-lm32.git
  26   cd llvm-lm32/tools
  27   git clone git://github.com/milkymist/clang-lm32.git clang
  28   cd ..
  29   mkdir build
  30   cmake ..
  31   make
  32   make install
  33
  34 3. Build compiler-rt.
  35   git clone git://github.com/milkymist/compiler-rt-lm32.git
  36   cd compiler-rt-lm32
  37   make lm32
  38
  39 4. Set the CRTDIR environment variable to where the libcompiler_rt.a is.
  40   export CRTDIR=/path_to/compiler-rt-lm32/lm32/lm32
  41
  42 5. Build and flash the BIOS (part of this source distribution).
  43   cd software/bios
  44   make
  45   make flash
  46
  47 The second command requires UrJTAG and FJMEM.
  48
  49 [> Instructions (gateware)
  50 --------------------------
  51 First, download and install Migen from:
  52   https://github.com/milkymist/migen
  53
  54 Once this is done, build the bitstream with:
  55   make
  56 This will generate the build/soc.bit programming file.
  57 Use:
  58   make load
  59 to load it with UrJTAG.
  60
  61 The SoC expects a bootloader to be located in flash at 0x860000, just
  62 like the legacy SoC did. However, there is no binary compatibility and a
  63 new BIOS needs to be built and flashed for the -NG SoC.
  64
  65 Enjoy!
  66
  67 [> Misc
  68 -------
  69 Code repository:
  70   https://github.com/milkymist/milkymist-ng
  71
  72 Send questions, comments and patches to devel [AT] lists.milkymist.org
  73 We are also on IRC: #milkymist on the Freenode network.
  74
  75 Milkymist-NG is free software: you can redistribute it and/or modify it
  76 under the terms of the GNU General Public License as published by the
  77 Free Software Foundation, version 3 of the License. This program is
  78 distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  79 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  80 PARTICULAR PURPOSE. See the GNU General Public License for more details.
  81
  82 The authors grant the additional permissions that the code can be used in
  83 conjunction with the LatticeMico32 CPU core from Lattice.
  84
  85 Unless otherwise noted, Milkymist-NG's source code is copyright (C)
  86 2011-2012 Sebastien Bourdeauducq. Other authors retain ownership of their
  87 contributions. If a submission can reasonably be considered independently
  88 copyrightable, it's yours and I encourage you to claim it with
  89 appropriate copyright notices. This submission then falls under the
  90 "otherwise noted" category. All submissions must use a license compatible
  91 with the GPL and the additional permissions above.