AUSPLL_CLKOUT_PLLA_REFBUFCLK_DI
core_mask32(atcphy, AUSPLL_CLKOUT_DIV, AUSPLL_CLKOUT_PLLA_REFBUFCLK_DI,
FIELD_PREP(AUSPLL_CLKOUT_PLLA_REFBUFCLK_DI, 7));