[meta-ti] AM335x EVM and core-image-sato

[Rudolf Streif]

Since the 3.12-rc5 kernel does not work I decided to give the 3.8 kernel a
try. The issue with this one is that the linux-ti-staging_3.8.bb recipe
explicitly sets KERNEL_IMAGETYPE="uImage". However, the u-boot environment
has now moved on to using zImage which consequently means u-boot will not
find the kernel file.

I do not know why KERNEL_IMAGETYPE = "uImage" was hacked into the
linux-ti-staging_3.8.bb recipe but whoever did it did not think about
u-boot. Does zImage not work with 3.8? I did not try it but it should
normally have no effect. Since there is no dependency of the u-boot recipes
on the kernel image types changes to the kernel image type for newer
versions of the kernel then automatically means that it must be changed for
the previous versions too.

I mocked around with the u-boot environment and booted the 3.8 uImage
kernel. To my surprise the 3.8 kernel from the TI staging repository fails
with the exact same problem and stops booting with a kernel not syncing
message during the init calls. Apparently a patch must have been applied to
the kernel repo that breaks it. It has nothing possibly to do with the
build system.

I would appreciate any hints to get this kernel built and boot on the board.

Thanks,
Rudi


On Mon, Oct 21, 2013 at 1:16 AM, Rudolf Streif
<rstreif at linuxfoundation.org>wrote:

> Denys,
>
> I recompiled the 3.12-rc5 kernel again but it still stalls during
> initialization. I attached the boot log. I don't know much about the
> platform details but maybe that's an issue you know about.
>
> Thanks,
> Rudi
>
>
>
>>
>> [1]
>> Build Configuration:
>> BB_VERSION        = "1.21.0"
>> BUILD_SYS         = "x86_64-linux"
>> NATIVELSBSTRING   = "Fedora-18"
>> TARGET_SYS        = "arm-poky-linux-gnueabi"
>> MACHINE           = "am335x-evm"
>> DISTRO            = "poky"
>> DISTRO_VERSION    = "1.5+snapshot-20131019"
>> TUNE_FEATURES     = "armv7a vfp neon"
>> TARGET_FPU        = "vfp-neon"
>> meta-yocto        = "master:9a1dce10bdc9254bb38e0e54199f23ae55e209a4"
>> meta-ti           = "master:c11504664990f007c3903d349e7cc135a904f8e2"
>> meta-oe           = "master:f8903f53db717294d63a8d79b5ef7ca34b3c189e"
>> meta              = "master:9a1dce10bdc9254bb38e0e54199f23ae55e209a4"
>>
>>
>
>
>
>
>


-- 
-- 
*Rudolf J. Streif*
Director of Embedded Solutions
The Linux Foundation

rudolf.streif at linux.com
Phone: +1.619.537.6646
Skype: rudolfstreif
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