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. 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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