linux

History

Linus Torvalds 04a24ae45d OpenRISC updates for 3.14 The interesting change here is a rework of the OpenRISC signal handling to make it more like other architectures in the hopes that this makes it easier for others to comment on and understand. This rework fixes some real bugs, like the fact that syscall restart did not work reliably. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEABECAAYFAlLqR+0ACgkQ70gcjN2673PA4ACePPK0tWp0swxAezjwq1KzXfVi xMcAn3Y/z7PXximluzeThTeqjeSz/wJ4 =DDIb -----END PGP SIGNATURE----- Merge tag 'for-3.14' of git://openrisc.net/~jonas/linux Pull OpenRISC updates from Jonas Bonn: "The interesting change here is a rework of the OpenRISC signal handling to make it more like other architectures in the hopes that this makes it easier for others to comment on and understand. This rework fixes some real bugs, like the fact that syscall restart did not work reliably" * tag 'for-3.14' of git://openrisc.net/~jonas/linux: openrisc: Use get_signal() signal_setup_done() openrisc: Rework signal handling		2014-01-30 17:08:41 -08:00
..
boot/dts	openrisc: use new common dtc rule	2012-12-03 17:17:48 -06:00
configs	openrisc: Refresh or1ksim_defconfig for v3.12	2013-11-15 10:37:32 +01:00
include	lib: Add missing arch generic-y entries for asm-generic/hash.h	2013-12-17 21:26:19 -05:00
kernel	openrisc: Use get_signal() signal_setup_done()	2014-01-09 10:57:21 +01:00
lib	ARCH: drivers remove __dev* attributes.	2013-01-03 15:57:13 -08:00
mm	arch: mm: pass userspace fault flag to generic fault handler	2013-09-12 15:38:01 -07:00
Kconfig	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
Makefile	openrisc: Makefile: append "-D__linux__" to KBUILD_CFLAGS	2013-11-05 16:14:47 +01:00
README.openrisc	OpenRISC: Miscellaneous	2011-07-22 18:46:41 +02:00
TODO.openrisc	OpenRISC: Miscellaneous	2011-07-22 18:46:41 +02:00

README.openrisc

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