Hi all, On Thu, Sep 22, 2016 at 12:55 PM, Mont3z Claros <mont3z.cla...@gmail.com> wrote: > On Thu, Sep 22, 2016 at 10:21 AM, Khem Raj <raj.k...@gmail.com> wrote: >> On Thu, Sep 22, 2016 at 8:29 AM, Tom Rini <tr...@konsulko.com> wrote: >>> On Wed, Sep 21, 2016 at 11:39:48AM -0700, Khem Raj wrote: >>>> On Fri, Sep 16, 2016 at 2:01 PM, Mont3z Claros <mont3z.cla...@gmail.com> >>>> wrote: >>>> > Hi all, >>>> > >>>> > I just finished a first beta version of a meta layer for SBC pine64. >>>> > You can find it in https://github.com/mont3z/meta-pine64 >>>> > >>>> > I'd appreciate if anyone has any comments on possible improvements. A >>>> > major problem I had was the necessity of two toolchains: one for >>>> > compiling u-boot (32 bits) and another for compiling all other >>>> > components (64 bis). At the moment I have a very ugly hack to do it. >>>> > The 32 bit toolchain is an external toolchain and I set PATH >>>> > environmental variable in u-boot recipe. >>>> >>>> I think it would be desirable to have single toolchain, u-boot is a >>>> stand alone app >>>> in general, if your compiler can do multilib builds for 32bit then it >>>> would be possible >>>> to build it. May be you should work with the toolchain team for pine64 to >>>> see if >>>> that can be done. It will simplify using this layer. >>> >>> Actually, pine64 has a 64bit U-Boot, I think maybe the layer just needs >>> to be updated to use mainline (or v2016.09.01) U-Boot. >>> >>>> Other option I would suggest to build u-boot externally for your SoC, we do >>>> not necessarily need a bootloader for building final images anyway. >>> >>> Well, you do if you want a bootable image to be made :) iirc all of the >>> models are SD card only, no eMMC so assuming firmware "elsewhere" is a >>> bad idea. >> >> You can always write a recipe to package a prebuilt u-boot. >> > > Hi all, > > unfortunately the pine64 mainlilne u-boot is not compatible with the > kernel I'm compiling. > To package a prebuilt u-boot could be one solution. At the moment I'm > investigating the possibility > of patching u-boot to compile it with multilib. >
from my research unfortunately the Cortex A53 from pine64 boots in 32-bit mode with armv7-a instruction set. This means I cannot use -mabi=ilp32 from aarch64 toolchain to compile it. After some discussion I also found that if I try to use pine64 mainline u-boot than I would need add support to every weird interface that AW came up with. Which is something I don't even understand. :-) So, I'm considering to leave as it is for now and I'll try to add recipes for mainline u-boot and mainline kernel (which is still beta). Thanks, Montez -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto
