On 12/14/2015 03:14 PM, justin chaise wrote:
Before I assumed..
I should have asked what was the last thing you saw on your screen
before it went blank?
It doesn't turn blank. I keep on seeing the penguin, but no login prompt.
Fido and jethro seems to use slightly different u-boot versions.
Recipes just seem to point to different versions, there are some patches
but they are for different CPU.
A bit better for the kernel, same version but different git revision.
It will take me some time to get an idea how the recipes work and what
are the differences between versions.
I'll have to check in the tmp/work dir.
Tomorrow there is a chance I'll get my serial cable and things may get
easier.
Again has anyone succeed to boot an imx28evk based board?
thanks
On Mon, Dec 14, 2015 at 8:08 AM, justin chaise
<[email protected] <mailto:[email protected]>> wrote:
Hi, I am working with a board that is almost the same as the
imx23evk, the imx28evk sibling.
It seems that not all of our, MXS family, drivers were ported to the
newer kernels.
If fido booted and you saw a login on the lcd you may be in good shape.
When you see the penguin logo that is the bootloader, u-boot,
initializing the hardware.
If the screen goes away after that; linux is not using or
initializing the lcd. It may be using the serial port.
First I would check the linux kernel command line switches in your
device tree under chosen --> bootargs.
Compare that to the settings you used with fido (linux-fslc 3.18?)
Second check the boot arguments in u-boot. These settings will
overwrite the command line switches from your device tree.
I you can not type at the command line in u-boot, you can change the
boot arguments in the code then recompile u-boot
see (include/configs/mx28evk.h)
I hope this starts you in the right direction.
On Mon, Dec 14, 2015 at 3:34 AM, Ivan Sergio Borgonovo
<[email protected] <mailto:[email protected]>> wrote:
I've a board that just need a couple of patches to device tree
compared to the imx28evk board:
- configuration of serial ports
- display timing
It was fully booting with fido (linux-fsl) and I was able to see
the login prompt on the screen.
Now I see the penguin logo and no more login prompt.
While I wait to have a cable to connect a serial console this is
the only information I can provide.
I was reading
http://www.yoctoproject.org/docs/2.0/mega-manual/mega-manual.html#moving-to-the-yocto-project-2.0-release
http://freescale.github.io/doc/release-notes/2.0/#known-issues
but nothing seems relevant unless the gcc problem is relevant
for the current status of linux-fsl kernel (4.1).
Since my only changes to the imx28evk are related to dt and the
screen does seem to work I'd be tempted to say the problem is
elsewhere.
I had to adjust local.conf just to cope with a couple of changes
in qt5 and gstreamer, but software that shouldn't have any
impact on boot.
Any clue that may help me to fix this while I wait for cable?
Has anyone tested imx28evk with jethro?
thanks
--
Ivan Sergio Borgonovo
http://www.webthatworks.it
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Ivan Sergio Borgonovo
http://www.webthatworks.it
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