LCD output

[Francesco Sarasini]

Hi all,

I have a beagleboard-xm and the chipsee expansion board v2 with lcd 7'' display.

I have tried the following boot.scr:

setenv bootcmd 'fatload mmc 0:1 0x80000000 uImage; fatload mmc 0:1 0x81600000 uInitrd; bootm 0x80000000 0x81600000'

setenv bootargs 'console=tty0 console=ttyO2,115200n8 rootwait ro earlyprintk fixrtc nocompcache vram=12M omapfb.mode=lcd:800x480 omapfb.rotate=0 init=/init androidboot.console=ttyO2'

boot

but the lcd is blank and at the kernel boot I see: omapfb: failed to enable display 'dvi'

How can I do?

Thanks

Francesco Sarasini

[sarasini]

Help T_T

On 16 Ott, 14:13, Francesco Sarasini <saras...@gmail.com> wrote:
> Hi all,
>
> I have a beagleboard-xm and the chipsee expansion board v2 with lcd 7''
> display.
>
> I have tried the following boot.scr:
> setenv bootcmd 'fatload mmc 0:1 0x80000000 uImage; fatload mmc 0:1
> 0x81600000 uInitrd; bootm 0x80000000 0x81600000'
> setenv bootargs 'console=tty0 console=ttyO2,115200n8 rootwait ro earlyprintk

> fixrtc nocompcache vram=12M *omapfb.mode=lcd:800x480
> omapfb.rotate=0*init=/init androidboot.console=ttyO2'
> boot
>
> but the lcd is blank and at the kernel boot I see: *omapfb: failed to enable
> display 'dvi'*

[Jim Huang]

2011/10/16 Francesco Sarasini <sara...@gmail.com>:

>
> Hi all,
> I have a beagleboard-xm and the chipsee expansion board v2 with lcd 7''
> display.

hi Francesco,

We worked with CATCAN, who provides the hardware combination as same
as your description.

You can download the Linux kernel source from CATCAN website: (sorry,
in Chinese)
http://www.catcan.com.tw/resources/file_download

I believe that CATCAN already merged the LCD specific changes.

Sincerely,
Jim Huang (jserv)
http://0xlab.org/

[Francesco Sarasini]

Hi Jim, I see only rowboat images not 0xdroid...

Thanks

Francesco Sarasini

2011/11/6 Jim Huang <js...@0xlab.org>

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[Jim Huang]

2011/11/12 Francesco Sarasini <sara...@gmail.com>:

> Hi Jim, I see only rowboat images not 0xdroid...
>

hi Francesco,

Exactly, 0xdroid doesn't support chipsee's LCD panel yet.

I think it would be better for rowboat project to support that and
then push to upstream.

[sarasini]

I have got the drivers for the lcd and touchscreen.

I have included them in the 0xdroid source code.
Added drivers/video/omap2/displays/panel-generic.c
Added ads7846 in arch/arm/mach-omap2/board-omap3beagle.c
I have Included them in the kernel using menuconfig.

I have recompiled the source following this guide
http://code.google.com/p/0xdroid/wiki/0x7_leb_gingerbread

All ok but when I power on the beagleboard-Xm it doesn't boot. It
stops at:
...
Verifying Checksum ... OK
Loading Kernel Image ...

What I'm doing wrong?

Thanks
Francesco

On Nov 13, 5:47 pm, Jim Huang <js...@0xlab.org> wrote:
> 2011/11/12 Francesco Sarasini <saras...@gmail.com>:

[kaik...@gmail.com]

HI sarasini,

Can you tell me the flow of data transfer in beaglebpard-xm and chipsee innloux display panel.

I m trying to configure DISPC and RFBI. is it ok ..?  or more needed.?

Regards,
Vineet