Uwe Hermann - Blog entry - Comments

nice one!

mazzoo — Fri, 03 Sep 2010 07:38:40 +0200

nice one!
I hope I will be able to convert my FT4232HQ_mini_module to one of those. Will save me a Dediprog SF100!

keep up the continuous good work.
mazzoo

USB / OpenCores

Uwe Hermann — Fri, 03 Sep 2010 02:15:19 +0200

Dunno, didn't check, I have no experience with FPGAs yet, and this would have been a lot more work too I think, as the FT2232H handles both USB and SPI for me basically, and flashrom support is also implemented upstream already. I also don't like FPGAs too much as they always force you to use the proprietary, closed-source tools from the FPGA vendors (Xilinx, whatever).

Could be an interesting alternative for the next project maybe.

gta02-core

Uwe Hermann — Fri, 03 Sep 2010 02:12:48 +0200

Thanks, looks interesting indeed. I'll check it out soonish.

Hi, please try the latest

Uwe Hermann — Fri, 03 Sep 2010 02:09:15 +0200

Hi, please try the latest summon-arm-toolchain version from git, should be fixed there.

Thx

Uwe Hermann — Fri, 03 Sep 2010 02:07:35 +0200

Thanks, fixed in the latest summon-arm-toolchain from the git repo.

--disable-werror

Uwe Hermann — Fri, 03 Sep 2010 02:05:29 +0200

You can use --disable-werror for gdb and the other components, or use the latest summon-arm-toolchain version from git.

MinGW

Uwe Hermann — Fri, 03 Sep 2010 02:03:00 +0200

I'm working on including proper MinGW/Windows support in the latest summon-arm-toolchain version from git. The script itself doesn't explicitly call cc or gcc, but you can probably force it via "export CC=gcc" or the like. This will not be necessary anymore soonish, I hope.

cpuinfo

Uwe Hermann — Fri, 03 Sep 2010 01:54:35 +0200

Nice, thanks.

Btw, the latest version of this script is available in the summon-arm-toolchain git repo.

Though I guess this stuff is highly Linux-specific (/proc/cpuinfo), won't work on *BSD or Mac OS X or Windows, whereas "-j 2" probably does.

libmpc-dev

Uwe Hermann — Fri, 03 Sep 2010 01:51:26 +0200

Thanks, fixed in the article, will also be mentioned soon in the latest summon-arm-toolchain version from git.

Fixed via --disable-werror

Uwe Hermann — Fri, 03 Sep 2010 01:44:00 +0200

This should be fixed in the latest summon-arm-toolchain version from git.

toolchain

Marty B. — Fri, 27 Aug 2010 01:50:58 +0200

Your cross-toolchain script is pretty stale. Try this one.

#!/bin/sh # Builds a arm-eabi cross compiler for use on linux # host systems. This target has no file system or kernel. # TARGET="arm-none-eabi" SRC="/build-dir/packages" # package directory PREFIX="/build-dir/arm/toolchain" # final toolchain directory PARALLEL="-j 2" BINUTILS=binutils-2.20 GCC=gcc-4.5.1 GMP=gmp-5.0.1 MPFR=mpfr-3.0.0 MPC=mpc-0.8.2 NEWLIB=newlib-1.18.0 # Note: the 7.x series of GDB seem to have issues with psim... GDB=gdb-6.8 export PATH="$PATH:$PREFIX/bin" # Before we do anything we need all the source files. # We keep them in one place and we never need to # download them twice if this build fails. mkdir $SRC cd $SRC echo "Dounloading source packages. This may take a while." echo wget -c http://ftp.gnu.org/gnu/binutils/$BINUTILS.tar.bz2 wget -c ftp://ftp.gnu.org/gnu/gcc/$GCC/$GCC.tar.bz2 wget -c ftp://ftp.gmplib.org/pub/$GMP/$GMP.tar.bz2 wget -c http://www.mpfr.org/mpfr-current/$MPFR.tar.bz2 wget -c http://www.multiprecision.org/mpc/download/$MPC.tar.gz wget -c ftp://sources.redhat.com/pub/newlib/$NEWLIB.tar.gz wget -c ftp://ftp.gnu.org/gnu/gdb/$GDB.tar.bz2 cd .. echo "Starting Build..." echo mkdir build echo "Building binutils" echo tar xfj $SRC/$BINUTILS.tar.bz2 cd build ../$BINUTILS/configure --target=$TARGET --prefix=$PREFIX \ --enable-interwork --disable-multilib --with-gnu-as \ --with-gnu-ld --disable-nls --disable-werror make $PARALLEL make install cd .. rm -rf build/* $BINUTILS echo "Building GCC pass 1" tar xfj $SRC/$GCC.tar.bz2 # the compiler math prereqs tar -jxf $SRC/$GMP.tar.bz2 tar -jxf $SRC/$MPFR.tar.bz2 tar -zxf $SRC/$MPC.tar.gz cd $GCC mv ../$GMP gmp mv ../$MPFR mpfr mv ../$MPC mpc cd ../build ../$GCC/configure --target=$TARGET --prefix=$PREFIX --enable-interwork \ --disable-multilib --enable-languages="c" --with-newlib \ --with-gmp-include=$(pwd)/gmp --with-gmp-lib=$(pwd)/gmp/.libs \ --without-headers --disable-shared --disable-nls --with-gnu-as --with-gnu-ld make $PARALLEL all-gcc make install-gcc cd .. rm -rf build/* # (We retain the GCC directory for pass 2) echo "Building Newlib" echo tar xfz $SRC/$NEWLIB.tar.gz cd build ../$NEWLIB/configure --target=$TARGET --prefix=$PREFIX --enable-interwork \ --disable-multilib --with-gnu-as --with-gnu-ld --disable-nls make $PARALLEL make install cd .. rm -rf build/* $NEWLIB echo " Building GCC pass 2" echo cd build ../$GCC/configure --target=$TARGET --prefix=$PREFIX --enable-interwork \ --disable-multilib --enable-languages="c,c++" --with-newlib \ --with-gmp-include=$(pwd)/gmp --with-gmp-lib=$(pwd)/gmp/.libs \ --without-headers --disable-shared --disable-libssp --disable-nls \ --disable-hardfloat --enable-threads=single --with-gnu-as --with-gnu-ld make $PARALLEL make install cd .. rm -rf build/* $GCC echo "Building GDB" echo tar xfj $SRC/$GDB.tar.bz2 cd build ../$GDB/configure --target=$TARGET --prefix=$PREFIX \ --enable-interwork --disable-multilib make all make install cd .. rm -rf build $GDB echo "Lets see if it compiles without errors..." echo 'main(){}' > dummy.c $PREFIX/bin/$TARGET-gcc-4.5.1 dummy.c -o dummy ls -l dummy rm dummy dummy.c a.out echo "cool! that's a start" echo "Compiler Finished for "$TARGET # All that should be left now is this script, the new toolchain and the packages. # Save the packages for other tuned toolchains.

Dunno if you're involved

Anonymous — Thu, 26 Aug 2010 13:38:14 +0200

Dunno if you're involved with the OpenMoko evolution gta02-core, but you might want start looking at it.

Are there no USB chips at

Anonymous — Thu, 26 Aug 2010 13:36:19 +0200

Are there no USB chips at OpenCores that you could have used? What about this one?

http://opencores.org/project,usb

This looks better to me if

OpenUAS — Sat, 07 Aug 2010 16:54:53 +0200

This looks better to me if you have multiple cores and multiple processors and still feel the need for more speed while recompiling... you know you do ;)...

if grep -q "processor" /proc/cpuinfo || grep -q "siblings" /proc/cpuinfo
then
PARALLEL="j "$(($( grep "processor" /proc/cpuinfo | sort -u | wc -l ) * $( grep "siblings" /proc/cpuinfo | tail -1 | cut -d: -f2 )))
else
PARALLEL=""
fi

libmpc-dev

Dan — Tue, 03 Aug 2010 20:12:27 +0200

Excellent script, Uwe.

I updated the package versions to match Yagarto, and I also had to install libmpc-dev on my Ubuntu 10.04. Hope this helps someone.