contents of enablebt script
sudo rfkill block bluetooth
sleep 1
sudo rfkill unblock bluetooth
sleep 1
sudo /home/linaro/firefly/hciattach -n /dev/ttyS0 bcm43xx

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enable_bt &

[   71.342597] [BT_RFKILL]: bt shut off power
[   72.455075] [BT_RFKILL]: ENABLE UART_RTS
[   72.556109] [BT_RFKILL]: DISABLE UART_RTS
[   72.556539] [BT_RFKILL]: bt turn on power
bcm43xx_init
Flash firmware /etc/firmware/bcm4356a2.hcd
Device setup complete
[   84.693074] Bluetooth: hci0 command 0x1003 tx timeout
[   86.697129] Bluetooth: hci0 command 0x1001 tx timeout
[   88.701063] Bluetooth: hci0 command 0x1009 tx timeout