Mortgage interest deduction

We have two homes.  Home A is our primary residence and Home B is secondary.  Outstanding loan balance on home A is 443K and on home B is 211 (so under the 1 million limit).   Only the interest on Home A is being allowed as a deduction.  We are itemizing deductions.  I see no way to change anything to have both amounts of interest totaled as a deduction.  Neither has a business related to it and we claim no home office.