Before I assumed.. I should have asked what was the last thing you saw on your screen before it went blank?
On Mon, Dec 14, 2015 at 8:08 AM, justin chaise <[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]> 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 >> >> -- >> _______________________________________________ >> meta-freescale mailing list >> [email protected] >> https://lists.yoctoproject.org/listinfo/meta-freescale >> > >
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