The asrock/imb-a180 mainboard is the first mainboard to use this w83627uhg/nct6627UD sio. The default h/w clock setting is 0. Adding the SIO in the mainboard Kconfig made the builder complain that the set_uart_clock_source() wasn't being used. So the calls to that function were uncommented. Change-Id: Iedba035237c5c0fa230b02ff4799bb8c1b7bbd4a Signed-off-by: Dave Frodin <dave.frodin@se-eng.com> Reviewed-on: http://review.coreboot.org/4573 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Marc Jones <marc.jones@se-eng.com>