OBP_PROP_CLOCK_FREQ
clk_freq = picldiag_get_uint_propval(modh, OBP_PROP_CLOCK_FREQ, &err);
clk_freq = picldiag_get_uint_propval(modh, OBP_PROP_CLOCK_FREQ, &err);
clk_freq = picldiag_get_uint_propval(modh, OBP_PROP_CLOCK_FREQ, &err);
clk_freq = picldiag_get_uint_propval(modh, OBP_PROP_CLOCK_FREQ, &err);