mmc/sd port on zippy2 expansion board does not work

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1

Hi there,

Anybody has successfully enabled mmc/sd port on zippy2 expansion
board? Would you please share:

what source/patches/config file are used, what u-boot are used?

the pre-built image on http://www.elinux.org/BeagleBoard_Zippy2 works
but all images I built does not work. I have sucessfully enabled
ethernet on zippy2 but the mmc/sd simply does not work.

Thanks in advance,

Yan

2

have you tried a recent angstrom uboot/mlo/uimage combination?

Op 15 jun 2010 om 07:46 heeft ygao88 <ygao88@gmail.com> het volgende geschreven:\

3

The latest angstrom uboot/mlo/uimage combination does not work either.
only the one in http://www.elinux.org/BeagleBoard_Zippy2 works.

-Yan

4

More information:

The latest angstrom uboot/mlo/uimage combination does not work when I
copy them to SD card and boot from SD. But when I do the following, it
works:

setenv bootargs console=tty0 console=ttyS2,115200n8 root=/dev/
mmcblk0p2 rootwait rw vram=12M omapfb.mode=dvi:1280x720MR-16@60 buddy=$
{buddy}
mmc init
fatload mmc 0 0x80300000 uImage
bootm 0x80300000

Does it make sense?

-Yan

5

Koen,

How can I get the source code and patches that are used to build the
angstrom kernel image?

Thanks,
Yan

6

More information:

The latest angstrom uboot/mlo/uimage combination does not work when I
copy them to SD card and boot from SD. But when I do the following, it
works:

setenv bootargs console=tty0 console=ttyS2,115200n8 root=/dev/
mmcblk0p2 rootwait rw vram=12M omapfb.mode=dvi:1280x720MR-16@60 buddy=$
{buddy}
mmc init
fatload mmc 0 0x80300000 uImage
bootm 0x80300000

Does it make sense?

Yes, it means you changed the default bootargs, do a 'nand erase 260000 20000' to restore the *working* defaults.

regards,

Koen

7

Koen,

How can I get the source code and patches that are used to build the
angstrom kernel image?

Go to the angstrom website and click on 'developers', alternatively, use google.

8

Hello!

I am very new to all of this, as will soon be apparent.

I got Angstrom running on the BeagleBoard with help from
http://code.google.com/p/beagleboard/wiki/HowToGetAngstromRunning

I have the Zippy2 extension board attached. How do I enable the
ethernet port on the Zippy2?

I am struggling with the Zippy2. I dont really understand how the
BeagleBoard communicates with the Zippy2 board. I am also not sure how
I know whether or not the BeagleBoard is recognizing the Zippy2?

ANY help or direction would be greatly appreciated!

THANK YOU!

9

Use the MLO/uboot/Uimage-2.6.32 from the angstrom demo site, those work well with zippy2