Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756262Ab3HFQO4 (ORCPT ); Tue, 6 Aug 2013 12:14:56 -0400 Received: from va3ehsobe003.messaging.microsoft.com ([216.32.180.13]:36769 "EHLO va3outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756151Ab3HFQOr convert rfc822-to-8bit (ORCPT ); Tue, 6 Aug 2013 12:14:47 -0400 X-Forefront-Antispam-Report: CIP:149.199.60.83;KIP:(null);UIP:(null);IPV:NLI;H:xsj-gw1;RD:unknown-60-83.xilinx.com;EFVD:NLI X-SpamScore: -3 X-BigFish: VPS-3(zzbb2dI98dI9371Ic89bh1432Izz1f42h208ch1ee6h1de0h1fdah2073h1202h1e76h1d1ah1d2ah1fc6hzz1de096h8275bh1de097hz2fh95h668h839h93fhd24hf0ah119dh1288h12a5h12a9h12bdh137ah13b6h1441h14ddh1504h1537h153bh162dh1631h1758h18e1h1946h19b5h1b0ah1d0ch1d2eh1d3fh1dfeh1dffh1e1dh906i1155h192ch) Date: Tue, 6 Aug 2013 09:13:32 -0700 From: =?utf-8?B?U8O2cmVu?= Brinkmann To: Daniel Lezcano CC: , Michal Simek , Stuart Menefy , Stephen Boyd , John Stultz , Thomas Gleixner , Russell King , , Subject: Re: Enable arm_global_timer for Zynq brakes boot References: <1c83c081-60c6-49e3-a85c-f64dd5be0e60@CH1EHSMHS030.ehs.local> <51FA9F54.3060704@linaro.org> <712d31e9-3584-48e1-aa9f-55bc94fa62c9@DB9EHSMHS001.ehs.local> <5200B7FE.4000306@linaro.org> <5200EC4C.5090202@linaro.org> <07cc684f-1d5c-44d7-b25c-6314efea4c58@CO9EHSMHS022.ehs.local> <5200F553.6000200@linaro.org> <5200F7C2.8090802@monstr.eu> <52011FA5.9000406@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline In-Reply-To: <52011FA5.9000406@linaro.org> User-Agent: Mutt/1.5.21 (2010-09-15) X-RCIS-Action: ALLOW Message-ID: Content-Transfer-Encoding: 8BIT X-OriginatorOrg: xilinx.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2744 Lines: 82 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 majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/