Hi Kim, >On Fri, 1 Mar 2013 16:11:36 +0000 >Akshay Saraswat <aksha...@samsung.com> wrote: > >> Samsung Enterprise Portal mySingle >> >> >> >> Hi Kim, >> >> >> >> >On Thu, 28 Feb 2013 11:08:21 +0000 >> >> >Akshay Saraswat <aksha...@samsung.com> wrote: >> >As you can see, no. It looks like you didn't change anything. I >have to manually single-space things below. > >> >> So, I have incremented this value >> >> to 500 which shall be good enough for the lowest of all frequencies. But >> >> I guess what we >> >> need here is some formula, to calculate timeout on the basis of >> >> frequency, which is nowhere >> >> defined. >> >> >That's odd - I see a bunch of frequencies advertised in >> >arch/arm/cpu/armv7/exynos/clock.c. >> >Or how about using a cycle counter instead? >> >btw, where can I find documentation for the ACE? >> >> I tried with different frequencies and data sizes and found that it takes 2 >> to 3 msecs in all the cases. >> Since, it is hardware accelerated encoding it is supposed to behave in this >> same manner. >> But the current version of u-boot behaves mysteriously and slow downs when >> pressed enter for long. >> In the above case mentioned I even saw time took to be more than 100 msecs >> for all the cases. >> I think it would not be a better idea to timeout encoding acceleration. >> But still if it is needed, cycle counter suggestion would be a great >> solution. > >it depends on whether the h/w can fault during its operation. > >> You can read Exynos5250 manual's "Security subsystem" section, which I >> referred for this. > >you mean this?: > >http://www.samsung.com/global/business/semiconductor/file/product/Exynos_5_Dual_User_Manaul_Public_REV100-0.pdf
Yes, this is the manual. But this ine is just a part of it which has been made public by Samsung. The one I have has 64 chapters in it and security subsystems is the 57th chapter. > >There is no "Security subsystem" section. > >Kim > Regards, Akshay Saraswat _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
