4 This is a port of Linux to the OpenRISC class of microprocessors; the initial
5 target architecture, specifically, is the 32-bit OpenRISC 1000 family (or1k).
7 For information about OpenRISC processors and ongoing development:
9 website http://openrisc.net
11 For more information about Linux on OpenRISC, please contact South Pole AB.
13 email: info@southpole.se
15 website: http://southpole.se
16 http://southpoleconsulting.com
18 ---------------------------------------------------------------------
20 Build instructions for OpenRISC toolchain and Linux
21 ===================================================
23 In order to build and run Linux for OpenRISC, you'll need at least a basic
24 toolchain and, perhaps, the architectural simulator. Steps to get these bits
25 in place are outlined here.
27 1) The toolchain can be obtained from openrisc.net. Instructions for building
28 a toolchain can be found at:
30 http://openrisc.net/toolchain-build.html
34 or1ksim is the architectural simulator which will allow you to actually run
35 your OpenRISC Linux kernel if you don't have an OpenRISC processor at hand.
37 git clone git://openrisc.net/jonas/or1ksim-svn
40 ./configure --prefix=$OPENRISC_PREFIX
46 Build the kernel as usual
48 make ARCH=openrisc defconfig
51 4) Run in architectural simulator
53 Grab the or1ksim platform configuration file (from the or1ksim source) and
54 together with your freshly built vmlinux, run your kernel with the following
57 sim -f arch/openrisc/or1ksim.cfg vmlinux
59 ---------------------------------------------------------------------
64 In the code, the following particles are used on symbols to limit the scope
65 to more or less specific processor implementations:
67 openrisc: the OpenRISC class of processors
68 or1k: the OpenRISC 1000 family of processors
69 or1200: the OpenRISC 1200 processor
71 ---------------------------------------------------------------------
76 18. 11. 2003 Matjaz Breskvar (phoenix@bsemi.com)
77 initial port of linux to OpenRISC/or32 architecture.
78 all the core stuff is implemented and seams usable.
80 08. 12. 2003 Matjaz Breskvar (phoenix@bsemi.com)
81 complete change of TLB miss handling.
82 rewrite of exceptions handling.
83 fully functional sash-3.6 in default initrd.
84 a much improved version with changes all around.
86 10. 04. 2004 Matjaz Breskvar (phoenix@bsemi.com)
87 alot of bugfixes all over.
88 ethernet support, functional http and telnet servers.
89 running many standard linux apps.
91 26. 06. 2004 Matjaz Breskvar (phoenix@bsemi.com)
94 30. 11. 2004 Matjaz Breskvar (phoenix@bsemi.com)
95 lots of bugfixes and enhancments.
96 added opencores framebuffer driver.
98 09. 10. 2010 Jonas Bonn (jonas@southpole.se)
99 major rewrite to bring up to par with upstream Linux 2.6.36