[yocto] Unable to get login prompt for Xilinx ML507 PowerPC440 target development board

[Elvis Dowson]

Hi Gary,

On Jul 24, 2012, at 11:55 PM, Gary Thomas wrote:

> Did 'udev' run?  I didn't see it in your log.  Normally, udev
> would be responsible for creating /dev/ttyUL0

No udev did not run. 

> What image are you trying to run?  e.g. core-image-minimal, etc?

I tried with both core-image-minimal and core-image-base.

I am using the meta-xilinx layer, virtex5.conf 

http://git.yoctoproject.org/cgit.cgi/meta-xilinx/plain/conf/machine/virtex5.conf

has the following entry

# Don't use tty1
# USE_VT = "0"
SERIAL_CONSOLE ?= "115200 ttyUL0"

# Device nodes add xsa for (system ace)
IMAGE_DEVICE_TABLES = "files/device_table-minimal.txt \
                       files/device_table_add-xsa.txt"

There is a device_table_add-xsa.txt file, whose contents are as follows:

# Add nodes for xilinx system ace
/dev/xsa    b   640     0   0   125     0   0   0   -
/dev/xsa1   b   640     0   1   125     0   0   0   -
/dev/xsa2   b   640     0   2   125     0   0   0   -
/dev/xsa3   b   640     0   3   125     0   0   0   -
/dev/ttyUL  c   666     0   0   204     187 0   1   4
Perhaps this is the reason? Should there be an additional entry for /dev/ttyUL0 ?

How can I ensure that udev runs? 

Best regards,

Elvis Dowson

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