Re: [openrisc] Newbie, OpenRISC, Or1ksim and Linux

["Marko Mlinar" <markom@opencores.org>]

> Cool.  It runs well now.
great.

> > > I also metioned Linux in the topic.  I saw the Linux port on the
website
> >
> > and
> >
> > > thought that it would be a cool think to help out on.
> > >
> > > Is there anything I can help with?
> >
> > Actually we have uCLinux, which is very similar. It is now running
> > Microwindows
> > and if you can play tetris or minesweeper on the or1ksim :)
>
> Hehe, cool.  I'll have a look at uCLinux tomorrow.  How similar is it to
> linux?
actually it is quite the same, except it does not have mmu and is a bit
smaller.
When building microwindows and compiler toolchain, you the instructions
below
might be helpful. They are preliminary and not yet tested. We will test it
and
publish it to the website soon.
Microwindows can be downloaded, using cvs -z9 co or1k/mw. And maybe you
will need to update config file there also.

good luck,
Marko

************ instructions how to build uclinux & uclibc toolchain *********
mkdir /tmp/tools
cd /tmp/tools
mkdir or32-uclinux
export PATH=/tmp/tools/or32-uclinux/bin:$PATH

#
# Binutils:
#

cvs -z9 co or1k/binutils
cd or1k
mkdir binutils-ucl
cd binutils-ucl
../binutils/configure --target=or32-uclinux --prefix=/tmp/tools/or32-uclinux
make all install
cd ../../

#
# Gcc
#

cvs -z9 co or1k/gcc-3.1
cd or1k
mkdir gcc-ucl
cd gcc-ucl
../gcc-3.1/configure --target=or32-uclinux --prefix=/tmp/tools/or32-uclinux/
 --local-prefix=/tmp/tools/or32-uclinux/or32-uclinux/ --with-gnu-as --with-g
nu-ld --verbose --enable-languages=c
make all install
cd ../../

#
# uClinux
#

cvs -z9 co or1k/uclinux
cd or1k/uclinux/uClinux-2.0.x/
make oldconfig
make dep
make
cd ../../../

#
# uClibc
#

cvs -z9 co or1k/uclibc
cd or1k/uclibc
# Edit Config file:
#   TARGET_ARCH=or32
#   CROSS = $(TARGET_ARCH)-uclinux-
#   KERNEL_SOURCE=/tmp/tools/or1k/uclinux/uClinux-2.0.x/
#   DEVEL_PREFIX = /tmp/tools/$(TARGET_ARCH)-uclinux
make all install
cd ../../or32-uclinux/bin
rm -f addr2line ar as cc cpp gasp gcc ld nm objcopy objdump ranlib size
strings strip jar grepjar
cd ..

#
# Rebuild Gcc
#
cd or1k/gcc-ucl
../gcc-3.1/configure --target=or32-uclinux --prefix=/tmp/tools/or32-uclinux/
 --local-prefix=/tmp/tools/or32-uclinux/or32-uclinux/ --with-gnu-as --with-g
nu-ld --verbose --enable-languages=c
make all install
cd ../../

#
# Sash
#
cd or1k/uclinux/userland/sash
make

#
# Generating ramdisk image
#
mkdir romfs
mkdir romfs/bin
cp  or1k/uclinux/userland/sash/sh romfs/bin/sash
chmod 777 romfs/bin/sash
mkdir romfs/dev
cd romfs/dev
mknod ram0 1 0
mknod tty 4 0
mknod tty1 4 1
mknod ttyS0 4 64
cd ..
genromfs -f ../or1k/uclinux/uClinux-2.0.x/arch/or32/board/initrd
cd ..

#
# Rebuilding uClinux
#
cd or1k/uclinux/uClinux-2.0.x/
make
cd ../../../



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