Re: [ptxdist] Generic BSP for x86
Hi, On 10/12/2016 01:31 PM, Koch, Alexander wrote: > Hi Alex, > >>> Is there anything newer to act as a starting point for creating x86 >>> images with recent PTXdist versions? >>> >> The DistroKit [0]. > > Thanks for the hint. I had had a quick look at this before, but found > only the platform definitions for arm7a and rpi, and therefore dropped it. > Yes, this is also enough for testing it on several arm platforms. >> >>> Any advice on how to get to an x86 image without creating a new BSP from >>> scratch is appreciated. I'm not new to PTXdist but have only done ARM >>> images so far. >>> >> I currently have some i586 plattform here (because doing some >> experiments with a project which has 32 bit support only and I don't >> fight currently for x86_64 multilib support.) Nevertheless, it's not >> mainline and x86 32 bit system is somewhat deprecated (in my opinion). > > I know 32bit x86 embedded is dull, but I really need to work that Atom > Z510 which does not support x86_64. The box does not have a NIC (yet), > so NFS is currently not an option for me. > If you run it in QEMU then you can emulate an atom which has a NIC. This is good for develop your BSP/Userspace Softwate/ETC. If it's at some point that you want the 1:1 behaviour on your atom board -> flash the image and make a release after some testing. > So your advice would be to take the DistroKit BSP and create a new > platform for my x86 target? > I would suggest to copy v7a platform to a atom2510 platform. Then select this platform and start ptxdist platformconfig -> change everything to your atom platform. Then start ptxdist kernelconfig -> change everything to your platform. Then look into run-nfs/run script and qemu-common source file and change everything that it emulates a atom. --- For the switch between QEMU and your atom board, I would disable then everything what you don't need in the kernelconfig which was necessary only for doing QEMU testing stuff. btw: qemu-i386 -cpu "?" gives you a list of possible cpu emulations, there is also some: x86 n270 Intel(R) Atom(TM) CPU N270 @ 1.60GHz don't know if this fits into your use-case. For the specific platform changes -> I can't help you there. But I think there exists now a DistroKit Mailinglist [0], you can send-patches there and we will review. - Alex [0] http://www.pengutronix.de/mailinglists/index_en.html ___ ptxdist mailing list ptxdist@pengutronix.de
Re: [ptxdist] Generic BSP for x86
Hi Alex, >> Is there anything newer to act as a starting point for creating x86 >> images with recent PTXdist versions? >> > The DistroKit [0]. Thanks for the hint. I had had a quick look at this before, but found only the platform definitions for arm7a and rpi, and therefore dropped it. > >> Any advice on how to get to an x86 image without creating a new BSP from >> scratch is appreciated. I'm not new to PTXdist but have only done ARM >> images so far. >> > I currently have some i586 plattform here (because doing some > experiments with a project which has 32 bit support only and I don't > fight currently for x86_64 multilib support.) Nevertheless, it's not > mainline and x86 32 bit system is somewhat deprecated (in my opinion). I know 32bit x86 embedded is dull, but I really need to work that Atom Z510 which does not support x86_64. The box does not have a NIC (yet), so NFS is currently not an option for me. So your advice would be to take the DistroKit BSP and create a new platform for my x86 target? Regards, Alex ___ ptxdist mailing list ptxdist@pengutronix.de
Re: [ptxdist] Generic BSP for x86
Hi, On 10/12/2016 08:38 AM, Koch, Alexander wrote: > Hi all, > > I'd like to build an image for an x86 box (Intel Atom Z510). Coming from > the official documentation quickstart I found the OSELAS Generic BSP > [1], which seems to be based on ptxdist-2014.07.0. > > I tried migrating it to ptxdist-2016.04.0 but multiple components (e.g. > klibc) fail to build. > > Is there anything newer to act as a starting point for creating x86 > images with recent PTXdist versions? > The DistroKit [0]. > Any advice on how to get to an x86 image without creating a new BSP from > scratch is appreciated. I'm not new to PTXdist but have only done ARM > images so far. > I currently have some i586 plattform here (because doing some experiments with a project which has 32 bit support only and I don't fight currently for x86_64 multilib support.) Nevertheless, it's not mainline and x86 32 bit system is somewhat deprecated (in my opinion). It's really simple to create a new plattform, if you are interest in using the BSP in QEMU, then you can also use v7a plattform and the run-nfs script will use a nfs userspace server, started by ptxdist nfsroot. Also the created image can be put into beaglebone (white/black) or RPi2. - Alex [0] https://git.pengutronix.de/cgit/DistroKit ___ ptxdist mailing list ptxdist@pengutronix.de
