When not connected:
===================
Open On-Chip Debugger 0.10.0+dev-00001-g0ecee83 (2017-01-23-19:52)
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
BCM2835 GPIO nums: swclk = 25, swdio = 24
adapter speed: 1000 kHz
cortex_m reset_config sysresetreq
Info : BCM2835 GPIO JTAG/SWD bitbang driver
Info : SWD only mode enabled (specify tck, tms, tdi and tdo gpios to add JTAG mode)
Info : clock speed 1006 kHz
Info : SWD DPIDR 0x0013ed9c
Error: Could not initialize the debug port
    TargetName         Type       Endian TapName            State
--  ------------------ ---------- ------ ------------------ ------------
 0* efm32hg309.cpu     cortex_m   little efm32hg309.cpu     unknown
Error: Could not initialize the debug port
Error: Target not examined, reset NOT asserted!
in procedure 'reset' called at file "tomu.conf", line 16
in procedure 'ocd_bouncer'


When Connected
==============
Open On-Chip Debugger 0.10.0+dev-00001-g0ecee83 (2017-01-23-19:52)
Licensed under GNU GPL v2
For bug reports, read
	http://openocd.org/doc/doxygen/bugs.html
BCM2835 GPIO nums: swclk = 25, swdio = 24
adapter speed: 1000 kHz
cortex_m reset_config sysresetreq
Info : BCM2835 GPIO JTAG/SWD bitbang driver
Info : SWD only mode enabled (specify tck, tms, tdi and tdo gpios to add JTAG mode)
Info : clock speed 1006 kHz
in procedure 'init' called at file "tomu.conf", line 14
in procedure 'ocd_bouncer'