PUNIT_REG_DDR_SETUP2
val = vlv_punit_read(dev_priv, PUNIT_REG_DDR_SETUP2);
vlv_punit_write(dev_priv, PUNIT_REG_DDR_SETUP2, val);
if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DDR_SETUP2) &
val = vlv_punit_read(dev_priv, PUNIT_REG_DDR_SETUP2);
vlv_punit_write(dev_priv, PUNIT_REG_DDR_SETUP2, val);
if (wait_for((vlv_punit_read(dev_priv, PUNIT_REG_DDR_SETUP2) &
val = vlv_punit_read(dev_priv, PUNIT_REG_DDR_SETUP2);