On 10/23/2014 10:25 AM, Mauro Ribeiro wrote: > Joonyoung, > > This patch was provided by Samsung and if someone can explain is you > guys from Samsung. > I have no idea of the logics behind this or what it would take to fix it. > Keep in mind that our u-boot and kernel (downstream 3.10) is part of > Samsung provided BSP. > Would be nice if you guys could explain this. > Mauro, Thanks to reply, do you know author of this patch written by Samsung? To Kukjin, The patch[1] seems to come from S.LSI guys, could you contact about this? [1]: https://github.com/abhijeet-dev/linux-samsung/commit/553b7f40465ab4fad6c270f289cd4780942f7fae > > > On Wed, Oct 22, 2014 at 11:17 PM, Joonyoung Shim > <jy0922.shim@xxxxxxxxxxx> wrote: >> Add Cc the patch author and committer from github. >> >> On 10/23/2014 10:04 AM, Joonyoung Shim wrote: >>> Hi, >>> >>> On 10/17/2014 09:06 PM, Kevin Hilman wrote: >>>> On Wed, Oct 15, 2014 at 4:35 AM, Joonyoung Shim <jy0922.shim@xxxxxxxxxxx> wrote: >>>>> Hi, >>>>> >>>>> Kevin Hilman <khilman <at> kernel.org> writes: >>>>> >>>>>> >>>>>> Hi hdmi_resources_init, >>>>>> >>>>>> Abhilash Kesavan <a.kesavan <at> samsung.com> writes: >>>>>> >>>>>>> I had noticed a similar issue where only 6 cores would come up during >>>>>>> development on 5420. This was because there was a check in our u-boot >>>>>>> secondary boot-up path which would put a core into WFI if a flag was >>>>>>> not present and hence fail to boot. I wonder if it is the same >>>>>>> situation in your case too. >>>>>>> Is the u-boot for odroid-xu3 publically available or can you check if >>>>> there is any such code present in your >>>>>> secondary bring-up path. >>>>>> >>>>>> I'm using the hardkernel u-boot[1], branch: odroidxu3-v2012.07. I'm >>>>>> currently using the pre-built binaries that are in the >>>>>> sd_fuse/hardkernel directory of that branch, but I can rebuild u-boot if >>>>>> needed. >>>>>> >>>>>> I'm not very familiar with u-boot, but if f you have some pointers where >>>>>> to start looking in that code, that would be helpful. >>>>>> >>>>>> Kevin >>>>>> >>>>>> [1] https://github.com/hardkernel/u-boot.git >>>>>> >>>>>> >>>>> >>>>> It seems to need magic code. >>>>> >>>>> Please refer >>>>> https://github.com/abhijeet-dev/linux-samsung/commit/553b7f40465ab4fad6c270f289cd4780942f7fae >>>> >>>> Thanks, Abhilash had pointed me to the same code, and it works. But... >>>> >>>> Can someone explain this "magic", ideally in the form of a changelog >>>> and patch submitted upstream? >>>> >>> >>> I also really wonder. >>> >>> One more problem, cpu0 doesn't boot after offline and system is halted. >>> >>> # echo 0 > /sys/devices/system/cpu/cpu0/online >>> [ 28.027852] IRQ152 no longer affine to CPU0 >>> [ 28.028087] IRQ256 no longer affine to CPU0 >>> [ 28.028344] CPU0: shutdown >>> # >>> # echo 1 > /sys/devices/system/cpu/cpu0/online >>> >>> So, it's failed script[1] to test MCPM functionalities >>> >>> Thanks. >>> >>> [1]: http://www.spinics.net/lists/arm-kernel/msg330946.html >>> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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