diff --git a/ice40/family.cmake b/ice40/family.cmake
index 6c46f459..b8d81d9b 100644
--- a/ice40/family.cmake
+++ b/ice40/family.cmake
@@ -39,14 +39,20 @@ if (NOT EXTERNAL_CHIPDB)
             set(DEV_CC_DB ${CMAKE_CURRENT_SOURCE_DIR}/ice40/chipdbs/chipdb-${dev}.bin)
             set(DEV_CONSTIDS_INC ${CMAKE_CURRENT_SOURCE_DIR}/ice40/constids.inc)
             set(DEV_GFXH ${CMAKE_CURRENT_SOURCE_DIR}/ice40/gfx.h)
-            add_custom_command(OUTPUT ${DEV_CC_BBA_DB}
-                COMMAND ${PYTHON_EXECUTABLE} ${DB_PY} -p ${DEV_CONSTIDS_INC} -g ${DEV_GFXH} ${OPT_FAST} ${OPT_SLOW} ${DEV_TXT_DB} > ${DEV_CC_BBA_DB}
-                DEPENDS ${DEV_CONSTIDS_INC} ${DEV_GFXH} ${DEV_TXT_DB} ${DB_PY} ${PREV_DEV_CC_BBA_DB}
-                )
-            add_custom_command(OUTPUT ${DEV_CC_DB}
-                COMMAND bbasm ${DEV_CC_BBA_DB} ${DEV_CC_DB}
-                DEPENDS bbasm ${DEV_CC_BBA_DB}
-                )
+            if(PREGENERATED_BBA_PATH)
+                add_custom_command(OUTPUT ${DEV_CC_DB}
+                    COMMAND bbasm ${PREGENERATED_BBA_PATH}/chipdb-${dev}.bin ${DEV_CC_DB}
+                    )
+            else()
+                add_custom_command(OUTPUT ${DEV_CC_BBA_DB}
+                    COMMAND ${PYTHON_EXECUTABLE} ${DB_PY} -p ${DEV_CONSTIDS_INC} -g ${DEV_GFXH} ${OPT_FAST} ${OPT_SLOW} ${DEV_TXT_DB} > ${DEV_CC_BBA_DB}
+                    DEPENDS ${DEV_CONSTIDS_INC} ${DEV_GFXH} ${DEV_TXT_DB} ${DB_PY} ${PREV_DEV_CC_BBA_DB}
+                    )
+                add_custom_command(OUTPUT ${DEV_CC_DB}
+                    COMMAND bbasm ${DEV_CC_BBA_DB} ${DEV_CC_DB}
+                    DEPENDS bbasm ${DEV_CC_BBA_DB}
+                    )
+            endif()
             if (SERIALIZE_CHIPDB)
                 set(PREV_DEV_CC_BBA_DB ${DEV_CC_BBA_DB})
             endif()
@@ -78,16 +84,23 @@ if (NOT EXTERNAL_CHIPDB)
             set(DEV_CC_DB ${CMAKE_CURRENT_SOURCE_DIR}/ice40/chipdbs/chipdb-${dev}.cc)
             set(DEV_CONSTIDS_INC ${CMAKE_CURRENT_SOURCE_DIR}/ice40/constids.inc)
             set(DEV_GFXH ${CMAKE_CURRENT_SOURCE_DIR}/ice40/gfx.h)
-            add_custom_command(OUTPUT ${DEV_CC_BBA_DB}
-                COMMAND ${PYTHON_EXECUTABLE} ${DB_PY} -p ${DEV_CONSTIDS_INC} -g ${DEV_GFXH} ${OPT_FAST} ${OPT_SLOW} ${DEV_TXT_DB} > ${DEV_CC_BBA_DB}.new
-                COMMAND mv ${DEV_CC_BBA_DB}.new ${DEV_CC_BBA_DB}
-                DEPENDS ${DEV_CONSTIDS_INC} ${DEV_GFXH} ${DEV_TXT_DB} ${DB_PY} ${PREV_DEV_CC_BBA_DB}
-                )
-            add_custom_command(OUTPUT ${DEV_CC_DB}
-                COMMAND bbasm --c ${DEV_CC_BBA_DB} ${DEV_CC_DB}.new
-                COMMAND mv ${DEV_CC_DB}.new ${DEV_CC_DB}
-                DEPENDS bbasm ${DEV_CC_BBA_DB}
-                )
+            if(PREGENERATED_BBA_PATH)
+                add_custom_command(OUTPUT ${DEV_CC_DB}
+                    COMMAND bbasm --c ${PREGENERATED_BBA_PATH}/chipdb-${dev}.bba ${DEV_CC_DB}.new
+                    COMMAND mv ${DEV_CC_DB}.new ${DEV_CC_DB}
+                    )
+            else()
+                add_custom_command(OUTPUT ${DEV_CC_BBA_DB}
+                    COMMAND ${PYTHON_EXECUTABLE} ${DB_PY} -p ${DEV_CONSTIDS_INC} -g ${DEV_GFXH} ${OPT_FAST} ${OPT_SLOW} ${DEV_TXT_DB} > ${DEV_CC_BBA_DB}.new
+                    COMMAND mv ${DEV_CC_BBA_DB}.new ${DEV_CC_BBA_DB}
+                    DEPENDS ${DEV_CONSTIDS_INC} ${DEV_GFXH} ${DEV_TXT_DB} ${DB_PY} ${PREV_DEV_CC_BBA_DB}
+                    )
+                add_custom_command(OUTPUT ${DEV_CC_DB}
+                    COMMAND bbasm --c ${DEV_CC_BBA_DB} ${DEV_CC_DB}.new
+                    COMMAND mv ${DEV_CC_DB}.new ${DEV_CC_DB}
+                    DEPENDS bbasm ${DEV_CC_BBA_DB}
+                    )
+            endif()
             if (SERIALIZE_CHIPDB)
                 set(PREV_DEV_CC_BBA_DB ${DEV_CC_BBA_DB})
             endif()