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omap3-evm boot problems

yihao zhang
Intellectual 420 points

Hi,all.

I am using omap3-evm and dvsdk4.02,when I boot my board,there is some output like this:

1) Linux video capture interface: v2.00

    tvp514x 2-005d: Registered to v4l2 master omap34xxcam!!

because I won't use the video capture dev,How can I disable this print?

2)

No device for DAI omap-mcbsp-dai-0
No device for DAI omap-mcbsp-dai-1
No device for DAI omap-mcbsp-dai-2
No device for DAI omap-mcbsp-dai-3
No device for DAI omap-mcbsp-dai-4
OMAP3 EVM SoC init

why it print this ?how can i omit this detect?

3)

tvp514x 2-005d: chip id mismatch msb:0x87 lsb:0x87
tvp514x 2-005d: Unable to detect decoder
tvp514x 2-005d: chip id mismatch msb:0x87 lsb:0x87
tvp514x 2-005d: Unable to detect decoder
tvp514x 2-005d: chip id mismatch msb:0x87 lsb:0x87
tvp514x 2-005d: Unable to detect decoder
tvp514x 2-005d: chip id mismatch msb:0x87 lsb:0x87
tvp514x 2-005d: Unable to detect decoder

becasue this detection spend long time ,I want accerelate the boot,how can I omit this ?

4)

omapdss DPI error: display already enabled
omap_vout omap_vout: 'lcd' Display already enabled
omapdss DPI error: display already enabled
omap_vout omap_vout: 'lcd' Display already enabled
omap_vout omap_vout: Buffer Size = 3686400
omap_vout omap_vout: : registered and initialized video device 0
omap_vout omap_vout: Buffer Size = 3686400
omap_vout omap_vout: : registered and initialized video device 1

In my board,I only want to use lcd and didn't use dvi ,dpi and so on.How can I skip this detection?

thank you in advance

  • 0
    TI__Guru 65405 points

    Hi Yihao,

    You could search in the source code for the listed log message and find the functions which printing them. You could comment this part of the source code and compile the sdk. I advise you to be careful with commenting of code segments because you could brake some initializations.

    There is some example for searching for "chip id mismatch msb:"

    grep "chip id mismatch msb:" ./ -R

    the result is find in:

    ./psp/linux-2.6.37-psp04.02.00.07.sdk/drivers/media/video/tvp514x.c:        v4l2_err(sd, "chip id mismatch msb:0x%x lsb:0x%x\n",

    BR

    Tsvetolin Shulev

  • 0
    Guru 31670 points

    Zhang, 

    You can disable TVP514x driver and Audio by changing the defconfig or running the kernel menuconfig.

    Regarding lcd prints, most likely you'll be using DPI interface for interconnecting your LCD panel.