On 04/11/2012 08:29 AM, Somebody in the thread at some point said:
On 10 April 2012 17:01, Andy Green andy.green@linaro.org wrote:
On 04/11/2012 07:41 AM, Somebody in the thread at some point said:
On Tue, Apr 10, 2012 at 5:17 PM, Christian Robottom Reis kiko@linaro.org wrote:
On Mon, Apr 09, 2012 at 08:24:51PM -0500, Omar Ramirez Luna wrote:
== Omar Ramirez <omarrmz> ==
=== Highlights ===
- Working on device tree for mailbox:
Find a kernel that works with DT for pandaboard (OMAP4):
- k3.4-rc1 doesn't recognize DT blob, k3.3 DT panics at boot.
- DT has to be appended to zImage.
Find a DT uboot:
- secretlab.ca uboot doesn't have usb support for panda, having
problems with fatload and mmc.
- linaro uboot has problems recognizing dt blob in memory (bootm
${kern} - ${dtb}; doesn't work properly).
This is a bit unexpected -- is there really nobody currently booting Panda using a DT?
The routine tests we do on each monthly release test for device tree and this test has passed for panda for months now. That is the LT kernel that may include some DT patches so maybe that explains this?
Right, LT kernels work fine with DT boot, we have done DT boot on OMAP4 since last Autumn. We still need to add at least this for a long time
http://git.linaro.org/gitweb?p=landing-teams/working/ti/kernel.git%3Ba=commi...
This is from Dec and still not in mainline. Grant, Arnd, Rajendra, do you know the reason why?
Last time I looked, at v3.3 since that's where we're stuck right now, dts for Panda is still really minimal. But all over the kernel, there's dt stuff gone in that's not getting tested even with DT boot path. If it didn't happen inbetweentimes it might be worth trying at the same time to generate a "maximum dts" that exercises the new goodies.
I don't know if that's all that's required.
Last week we tried v3.3 mainline and it dies in some problem about UART.
Have you tried 3.4-rc kernels?
No. Normally I would have rebased immediately but as I explained in another post, we are camped at v3.3 until our new contributors make it to the 3.4-rc1 rendezvous point. Since just the -core and -pm topics are already >650 patches, and it's > 1400 total, making a throwaway test rebase when there's other things still to do is too expensive.
Omar, you should look here
http://git.linaro.org/gitweb?p=landing-teams/working/ti/kernel.git%3Ba=summa...
use tilt-tracking and omap_5430evm_defconfig
That's workable on 4430, 4460 (and Omap5) with DT boot. We have a race bug about mmc probe outstanding but we can't reproduce it at the moment. Otherwise for 4460 it should be running on all cylinders.
Can someone on the LT, working with Omar, take some time to dig into what all is needed to boot mainline with DT support? I'm a little surprised too that it doesn't just work out of the box. :/
Jassi already took a look last week at v3.3 DT status when he generated a minimal config for mainline LAVA tests for Andrey.
Jassi maybe you can give pure mainline 3.4-rc1 or HEAD a go and identify what needs sorting for DT boot path.
-Andy