[meta-freescale] No video on SabreLite

[Gary Thomas]

On 2014-11-11 07:21, Gary Thomas wrote:
> I'm trying to build for my SabreLite using the latest master
>    MACHINE           = "nitrogen6x"
>    TUNE_FEATURES     = "arm armv7a vfp neon callconvention-hard cortexa9"
>    TARGET_FPU        = "vfp-neon"
>    meta              = "master:3c741a8d33acbf4b3d5eecc04533bc76e2f37253"
>    meta-fsl-arm      = "master:b03f3b6974c463fb21faffa8623526c3f39bfec4"
>    meta-fsl-arm-extra = "master:33fa5e67d42eae155d62951fcb7aa771705e25d7"
>
> This all builds fine (I'm using an image such as core-image-sato)
> When I boot, X fails:
>    [2670340.692] (EE) open /dev/fb0: No such file or directory
>    [2670340.692] (EE) No devices detected.
> Indeed, there are no frame buffer devices:
>    root at nitrogen6x:~# ls -l /dev/fb*
>    ls: cannot access /dev/fb*: No such file or directory
>    root at nitrogen6x:~# cat /proc/cmdline
>    enable_wait_mode=off video=mxcfb0:dev=lcd,CLAA-WVGA,if=RGB666 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off fbmem=10
> M console=ttymxc1,115200 vmalloc=400M consoleblank=0 rootwait root=/dev/mmcblk0p2 mxc_hdmi.only_cea=1
>
> I can see by the boot log that there were some issues:
>    mxc_sdc_fb fb.26: register mxc display driver lcd
>    mxc_sdc_fb fb.26: NO mxc display driver found!
>    mxc_sdc_fb fb.27: mxcfb1 is turned off!
>    mxc_sdc_fb fb.28: mxcfb2 is turned off!
>    mxc_sdc_fb fb.29: mxcfb3 is turned off!
>
> Also, the kernel didn't manage my TSC2004 touch panel:
>    root at nitrogen6x:~# ls -l /dev/input
>    total 0
>    drwxr-xr-x 2 root root      60 Nov 11 14:02 by-path
>    crw-rw---- 1 root input 13, 64 Nov 11 14:02 event0
>    crw-rw---- 1 root input 13, 65 Nov 11 14:02 event1
>    crw-rw---- 1 root input 13, 63 Nov 11 14:02 mice
>    crw-rw---- 1 root input 13, 32 Nov 11 14:02 mouse0
>    lrwxrwxrwx 1 root root       6 Nov 11 14:02 touchscreen0 -> event0
>    root at nitrogen6x:~# ls -l /dev/input/by-path/
>    total 0
>    lrwxrwxrwx 1 root root 9 Nov 11 14:02 platform-gpio-keys.23-event -> ../event1
>
> This was all built using out of the box recipes from master
> updated on 2014-11-10
>    root at nitrogen6x:~# cat /proc/version
>    Linux version 3.10.17-1.0.2_ga+yocto+gf7a1e18 (gthomas at titan) (gcc version 4.8.2 (GCC) ) #1 SMP Mon Nov 10 09:28:59 MST 2
> 014
>
> Ideas?  I know that this is all quite new, moving to 3.10.17-1.0.2,
> but I would like to get my SabreLite board working again :-)

Is there any revision using 3.10 kernel that will work with
my 7" LCD screen?  I've tried going back on dizzy
   meta-fsl-arm-extra = "(detachedfrom5827542):582754281653c0fb7a35df353b72c79f6628f58a"

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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