diff --git a/phhgsi_arm64_ab/BoardConfig.mk b/phhgsi_arm64_ab/BoardConfig.mk
new file mode 100644
index 0000000..eba9e09
--- /dev/null
+++ b/phhgsi_arm64_ab/BoardConfig.mk
@@ -0,0 +1,3 @@
+include build/make/target/board/generic_arm64_ab/BoardConfig.mk
+
+BOARD_SYSTEMIMAGE_PARTITION_SIZE := 2147483648