01:08 <James_T> sjoerd has a magic kernel for the xu3?

01:08 <James_T> >.>

07:51 <sjoerd> James_T: it's not *that* magic

08:19 <James_T> sjoerd: Well, does it support HMP on 3.18?

08:19 <sjoerd> sure but that's just a matter of turning off BL

08:20 <James_T> Oh ok

08:21 <sjoerd> the linux scheduler doesn't know yet how to use hmp properly though

08:21 <James_T> ah. even with the odroid kernels?

08:21 <James_T> I see it just loads up the A15's then jumps on the A8's

08:22 <sjoerd> I don't know what the odroid kernel has wr.t scheduler tweaks

08:24 <javier__> James_T: that sounds as if the the big.LITTLE switcher is enabled and not having proper CPUFreq support

08:25 <James_T> ah, ok

08:25 <javier__> but in any case as sjoerd said disabling the big.LITTLE switcher will bring up all the 8 cores

08:26 <James_T> yeah, I think that odroid has BL disabled by default since i can use all 8 cores

08:26 <sjoerd> well bringing up all 8 cores has a seperate issue

08:27 <sjoerd> you need that one for that: http://cgit.collabora.com/git/user/sjoerd/linux.git/commit/?h=wip/3.18.x/exynos-odroid-xu3&id=2f922dc958f70a0896bda5fa213300ac86cefc4e

08:27 <sjoerd> which is a bit of hack that hardkernel also has in there tree

08:28 <javier__> James_T: sorry, I missunderstood and thought you said only the A8 were up

08:28 <sjoerd> s/A8/A7/

08:28 <James_T> that

08:28 <James_T> all the cores come up on the odroid kernel

08:29 <javier__> sjoerd: interestingly that magic is only needed for odroid xu3 right? it is not needed in the peach pi so I guess the firmware does it in that case

08:30 <sjoerd> javier__: yeah one of firmware, bl1 or bl2

08:30 <javier__> nod

08:34 <James_T> sjoerd: hmm, so why does the xu3 even need a blob to load? some closed-source magic from samsung?

08:35 <sjoerd> Depends on which of the blobs you're asking about

08:35 <James_T> there was one for some trustzone stuff...

08:35 <sjoerd> bl1 is magic from samsung, i don't know what it does.. bl2 is a u-boot SPL that's signed and tzsw is the trustzone firmware

08:36 <James_T> right

08:36 <James_T> so we're stuck with the u-boot that shipped with the device?

08:36 <James_T> wait. does bl2 chainload another uboot

08:36 <sjoerd> yes

08:36 <James_T> ok, thanks

08:37 <sjoerd> the SPL just sets up clocks etc, the one you interact with is what one normally considers u-boot

08:37 <sjoerd> patches fro XU3 on upstream u-boot are almost ready to merge in mainline at this point

08:38 <James_T> Still don't know how the XU3-Lite is clocked lower than the XU3... unless they used lower-binned SoC's

08:40 <javier__> James_T: you can also build your own u-boot SPL/BL2 and hardkernel could sign it for you