Mainline yocto on IMX53

[woutervh]

Hello all,

I want to do some tests with the mainline yocto (poky) with the meta-arm-fsl layers. I want to make use of the latest mainline kernel. But I can't make it to start an X-server. How do I change the bsp to boot the latest kernel (3.11)

It says "no screens found". Does somebody knows a tutorial  or something for an IMX53 to build a screen-enabled system? (say a imx53qsb)

I'm using the "bitbake core-image-web-kiosk" app

[YixingKong]

Wouter

This discussion is closed since no activity. If you still need help, please feel free to reply with an update to this discussion, or create another discussion.

Thanks,

Yixing

[fabio_estevam]

Just looked at the imx53-qsb.dts from 3.11 and the only display option available there is the parallel display (you still need to pass status = "okay").

TVE can be supported with this patch:

http://www.spinics.net/lists/arm-kernel/msg272592.html

and LVDS can also be supported as well (see imx6qdl-sabresd.dts for a reference)

[woutervh]

Yes, but I'm trying to do a parallel display (custom FPGA implementation).

But the thing is that I don't know what to change to pick the latest kernel in stead of  the BSP one (2.6.35).

When I use my own build 3.10 now, with the rootfs from yocto, it wants to use the fb for xorg, where I think I need to have the DRI version? Because In 3.10 it uses an emulated "/dev/fb0"...

Or am I seeing it incorrectly?

[woutervh]

I added:

PREFERRED_PROVIDER_virtual/kernel = "linux-fslc" to my local.conf, but get an error on xorg-driver:

In file included from /opt/git/poky/build/tmp/sysroots/imx53qsb/usr/src/kernel/include/linux/kgdb.h:16:0,

|                  from /opt/git/poky/build/tmp/sysroots/imx53qsb/usr/src/kernel/include/linux/fb.h:4,

|                  from /opt/git/poky/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/xf86-video-imxfb/11.09.01-r12/xserver-xorg-video-imx-11.09.01/src/imx_display.c:33:

| /opt/git/poky/build/tmp/sysroots/imx53qsb/usr/src/kernel/include/linux/linkage.h:7:25: fatal error: asm/linkage.h: No such file or directory

|  #include <asm/linkage.h>

|                          ^

| compilation terminated.

| make[2]: *** [imx_display.lo] Error 1

| make[2]: Leaving directory `/opt/git/poky/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/xf86-video-imxfb/11.09.01-r12/build/src'

| make[1]: *** [all-recursive] Error 1

| make[1]: Leaving directory `/opt/git/poky/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/xf86-video-imxfb/11.09.01-r12/build'

| make: *** [all] Error 2

| ERROR: oe_runmake failed

| WARNING: exit code 1 from a shell command.

| ERROR: Function failed: do_compile (log file is located at /opt/git/poky/build/tmp/work/armv7a-vfp-neon-poky-linux-gnueabi/xf86-video-imxfb/11.09.01-r12/temp/log.do_compile.32086)

ERROR: Task 2827 (/opt/git/poky/meta-fsl-arm/recipes-graphics/xorg-driver/xf86-video-imxfb_11.09.01.bb, do_compile) failed with exit code '1'

[YixingKong]

Wouter

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help please feel

free to contact Freescale.

Thanks,
Yixing

[OtavioSalvador]

Hi Wouter,

Could you subscribe and send this to meta-freescale mailing list[1]?

This way we can deal with this at the Yocto mailing list and more people can profit from your question  there.

1. https://lists.yoctoproject.org/listinfo/meta-freescale

[daiane_angolini]

Yes, please, report the error on maillist. I think, at end, we will need to rise a bug.

[daiane_angolini]

What image are you bitbaking?

[woutervh]

core-image-web-kiosk

[fabio_estevam]

Parallel display works fine. It is disabled by default, but you can enable it by doing:

--- a/arch/arm/boot/dts/imx53-qsb.dts

+++ b/arch/arm/boot/dts/imx53-qsb.dts

@@ -27,7 +27,7 @@

                interface-pix-fmt = "rgb565";

                pinctrl-names = "default";

                pinctrl-0 = <&pinctrl_ipu_disp0_1>;

-               status = "disabled";

+               status = "okay";

                display-timings {

                        claawvga {

                                native-mode;

,then just adapt the timings as per your display specs and you should be able to see a nice little penguin on it ;-)

[daiane_angolini]

I don´t understand exactly what you want.

In order to use linux from kernel.org (linux mainline) instead of the one from Freescale site (2.6.35) please add on your local.conf:

PREFERRED_PROVIDER_virtual/kernel = "linux-fslc"

Please, let me know if this is what you´ve been looking for :smileywink: (or if you need something else)

[woutervh]

That worked for having the latest kernel. However I'm facing this error (see below)

[OtavioSalvador]

Hello Fabio, any patch we can backport to linux-fslc kernel?

[fabio_estevam]

Let's wait for the patch to reach linux-next first.