Thanks for your replys. I connected to the console USB port and compared the boot messages of the WP8548 and the WP7504. Everything is similar until it gets to the “Legato start sequence”. The WP7504 is displaying the following
[ 19.199633] mangoh: created device for board green dv4
[ 19.227651] mangoh mangoh green dv4: Probing mangOH platform device
[ 19.403815] qup_i2c qup_i2c.0: QUP: I2C status flags :0x1300c8, irq:187
[ 19.409552] qup_i2c qup_i2c.0: I2C slave addr:0x3a not connected
Finished Legato start Sequence
After this, the WP7504 tries to handle a multiplexed I2C bus and fails.
I have since loaded the the latest firmware (Release 14) from Sierra using the Windows EXE on the Red board. The boot sequence is still displaying that it was created for the Green board.
Any ideas how to change this?