mirror of
https://github.com/torvalds/linux.git
synced 2024-11-14 08:02:07 +00:00
616257669e
Adds README file, TODO list, and a couple of other pieces that didn't seem to fit into any other patch. Signed-off-by: Jonas Bonn <jonas@southpole.se> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
100 lines
2.8 KiB
Plaintext
100 lines
2.8 KiB
Plaintext
OpenRISC Linux
|
|
==============
|
|
|
|
This is a port of Linux to the OpenRISC class of microprocessors; the initial
|
|
target architecture, specifically, is the 32-bit OpenRISC 1000 family (or1k).
|
|
|
|
For information about OpenRISC processors and ongoing development:
|
|
|
|
website http://openrisc.net
|
|
|
|
For more information about Linux on OpenRISC, please contact South Pole AB.
|
|
|
|
email: info@southpole.se
|
|
|
|
website: http://southpole.se
|
|
http://southpoleconsulting.com
|
|
|
|
---------------------------------------------------------------------
|
|
|
|
Build instructions for OpenRISC toolchain and Linux
|
|
===================================================
|
|
|
|
In order to build and run Linux for OpenRISC, you'll need at least a basic
|
|
toolchain and, perhaps, the architectural simulator. Steps to get these bits
|
|
in place are outlined here.
|
|
|
|
1) The toolchain can be obtained from openrisc.net. Instructions for building
|
|
a toolchain can be found at:
|
|
|
|
http://openrisc.net/toolchain-build.html
|
|
|
|
2) or1ksim (optional)
|
|
|
|
or1ksim is the architectural simulator which will allow you to actually run
|
|
your OpenRISC Linux kernel if you don't have an OpenRISC processor at hand.
|
|
|
|
git clone git://openrisc.net/jonas/or1ksim-svn
|
|
|
|
cd or1ksim
|
|
./configure --prefix=$OPENRISC_PREFIX
|
|
make
|
|
make install
|
|
|
|
3) Linux kernel
|
|
|
|
Build the kernel as usual
|
|
|
|
make ARCH=openrisc defconfig
|
|
make ARCH=openrisc
|
|
|
|
4) Run in architectural simulator
|
|
|
|
Grab the or1ksim platform configuration file (from the or1ksim source) and
|
|
together with your freshly built vmlinux, run your kernel with the following
|
|
incantation:
|
|
|
|
sim -f arch/openrisc/or1ksim.cfg vmlinux
|
|
|
|
---------------------------------------------------------------------
|
|
|
|
Terminology
|
|
===========
|
|
|
|
In the code, the following particles are used on symbols to limit the scope
|
|
to more or less specific processor implementations:
|
|
|
|
openrisc: the OpenRISC class of processors
|
|
or1k: the OpenRISC 1000 family of processors
|
|
or1200: the OpenRISC 1200 processor
|
|
|
|
---------------------------------------------------------------------
|
|
|
|
History
|
|
========
|
|
|
|
18. 11. 2003 Matjaz Breskvar (phoenix@bsemi.com)
|
|
initial port of linux to OpenRISC/or32 architecture.
|
|
all the core stuff is implemented and seams usable.
|
|
|
|
08. 12. 2003 Matjaz Breskvar (phoenix@bsemi.com)
|
|
complete change of TLB miss handling.
|
|
rewrite of exceptions handling.
|
|
fully functional sash-3.6 in default initrd.
|
|
a much improved version with changes all around.
|
|
|
|
10. 04. 2004 Matjaz Breskvar (phoenix@bsemi.com)
|
|
alot of bugfixes all over.
|
|
ethernet support, functional http and telnet servers.
|
|
running many standard linux apps.
|
|
|
|
26. 06. 2004 Matjaz Breskvar (phoenix@bsemi.com)
|
|
port to 2.6.x
|
|
|
|
30. 11. 2004 Matjaz Breskvar (phoenix@bsemi.com)
|
|
lots of bugfixes and enhancments.
|
|
added opencores framebuffer driver.
|
|
|
|
09. 10. 2010 Jonas Bonn (jonas@southpole.se)
|
|
major rewrite to bring up to par with upstream Linux 2.6.36
|