On Tue, Aug 06, 2013 at 06:09:09PM +0200, Daniel Lezcano wrote: > On 08/06/2013 03:18 PM, Michal Simek wrote: > > [ ... ] > > >>>>> Soren: Are you able to replicate this issue on QEMU? > >>>>> If yes, it should be the best if you can provide Qemu, kernel .config/ > >>>>> rootfs and simple manual to Daniel how to reach that fault. > >>>> > >>>> I tried to download qemu for zynq but it fails: > >>>> > >>>> git clone git://git.xilinx.com/qemu-xarm.git > >>>> Cloning into 'qemu-xarm'... > >>>> fatal: The remote end hung up unexpectedly > >>> > >>> Not sure which site have you found but > >>> it should be just qemu.git > >>> https://github.com/Xilinx/qemu > >>> > >>> or github clone. > >> > >> Ok, cool I was able to clone it. > >> > >>>> I am also looking for the option specified for the kernel: > >>>> > >>>> "The kernel needs to be built with this feature turned on (in > >>>> menuconfig, System Type->Xilinx Specific Features -> Device Tree At > >>>> Fixed Address)." > >> > >> Ok. > >> > >>> This also sound like a very ancient tree. > >>> This is the latest kernel tree - master-next is the latest devel branch. > >>> https://github.com/Xilinx/linux-xlnx > >> > >> Ok, cool. I have the right one. > > Following the documentation, I was able to boot a kernel with qemu for > the linux-xlnx and qemu-xilinx. > > But this kernel is outdated regarding the upstream one, so I tried to > boot a 3.11-rc4 kernel without success, I did the following: > > I used the default config file from linux-xlnx for the upstream kernel. > > I compiled the kernel with: > > make -j 5 ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- > UIMAGE_LOADADDR=0x8000 uImage > > I generated the dtb with: > > make -j 5 ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- dtbs > > For qemu, I started qemu with: > > ./arm-softmmu/qemu-system-arm -M arm-generic-fdt -nographic -smp 2 > -machine linux=on -serial mon:stdio -dtb zynq-zed.dtb -kernel > kernel/zImage -initrd filesystem/ramdisk.img > > I tried with the dtb available for the upstream kernel: > > zynq-zc706.dtb, zynq-zc702.dtb and zynq-zed.dtb > > Did I miss something ?
Unfortunately the public github QEMU is behind our internal development. IIRC, there were a couple of DT compatible strings QEMU didn't know. Those are sometimes removed making boot fail/hang. Are you on IRC? It's probably easier to resolve this in a more direct way (I'm 'sorenb' on freenode). Otherwise I could give you a few more instructions for debugging this per mail? Sören -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/