Change license to BSD

LICENSE

@@ -0,0 +1,29 @@
+Unless otherwise noted, milkymist-ng's is copyright (C) 2011-2013 Sebastien Bourdeauducq.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer. 
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution. 
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+Other authors retain ownership of their contributions. If a submission can
+reasonably be considered independently copyrightable, it's yours and we
+encourage you to claim it with appropriate copyright notices. This submission
+then falls under the "otherwise noted" category. All submissions are strongly
+encouraged to use the two-clause BSD license reproduced above.

README

@@ -1,4 +1,4 @@
-[> Milkymist-NG system-on-chip
+[> Milkymist-ng system-on-chip
 ------------------------------
 
 This is the next-generation Milkymist(tm) system-on-chip design,
@@ -10,7 +10,7 @@ This translates to more development productivity, better video resolution
 and quality, ease of designing complex hardware accelerators, and much
 more flexibility in hardware designs.
 
-The Milkymist-NG SoC supports the Mixxeo and the Milkymist One.
+The milkymist-ng SoC supports the Mixxeo and the Milkymist One.
 Obtain yours at http://milkymist.org
 
 [> Instructions (software)
@@ -53,7 +53,7 @@ Once this is done, build the bitstream with:
 This will generate the build/soc-<platform>.bit programming file
 and load it with UrJTAG.
 
-A new BIOS needs to be built and flashed for the -NG SoC.
+A new BIOS needs to be built and flashed for the -ng SoC.
 
 Enjoy!
 
@@ -65,20 +65,19 @@ Code repository:
 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.
+Milkymist-ng is released under the very permissive two-clause BSD license. Under
+the terms of this license, you are authorized to use milkymist-ng for
+closed-source proprietary designs.
+Even though we do not require you to do so, those things are awesome, so please
+do them if possible:
+ * tell us that you are using milkymist-ng
+ * cite milkymist-ng in publications related to research it has helped
+ * send us feedback and suggestions for improvements
+ * send us bug reports when something goes wrong
+ * send us the modifications and improvements you have done to milkymist-ng.
+   The use of "git format-patch" is recommended. If your submission is large and
+   complex and/or you are not sure how to proceed, feel free to discuss it on
+   the mailing list or IRC (#milkymist on Freenode) beforehand.
 
-The authors grant the additional permissions that the code can be used in
-conjunction with the LatticeMico32 CPU core from Lattice.
-
-Unless otherwise noted, Milkymist-NG's source code is copyright (C)
-2011-2013 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.
+See LICENSE file for full copyright and license info. You can contact us on the
+public mailing list devel [AT] lists.milkymist.org.