diff --git a/plat/arm/board/arm_fpga/platform.mk b/plat/arm/board/arm_fpga/platform.mk
index 3d2f8be..c9425c5 100644
--- a/plat/arm/board/arm_fpga/platform.mk
+++ b/plat/arm/board/arm_fpga/platform.mk
@@ -59,6 +59,7 @@
 else
 # AArch64-only cores
 	FPGA_CPU_LIBS	+=	lib/cpus/aarch64/cortex_a510.S			\
+				lib/cpus/aarch64/cortex_a520.S			\
 				lib/cpus/aarch64/cortex_a710.S			\
 				lib/cpus/aarch64/cortex_a715.S			\
 				lib/cpus/aarch64/cortex_a720.S			\
@@ -68,7 +69,6 @@
 				lib/cpus/aarch64/neoverse_n1.S			\
 				lib/cpus/aarch64/neoverse_n2.S			\
 				lib/cpus/aarch64/neoverse_v1.S			\
-				lib/cpus/aarch64/cortex_hayes.S			\
 				lib/cpus/aarch64/cortex_chaberton.S		\
 				lib/cpus/aarch64/cortex_blackhawk.S
 
diff --git a/plat/arm/board/tc/platform.mk b/plat/arm/board/tc/platform.mk
index 4faa98f..5a1d83a 100644
--- a/plat/arm/board/tc/platform.mk
+++ b/plat/arm/board/tc/platform.mk
@@ -78,7 +78,7 @@
 
 # CPU libraries for TARGET_PLATFORM=2
 ifeq (${TARGET_PLATFORM}, 2)
-TC_CPU_SOURCES	+=	lib/cpus/aarch64/cortex_hayes.S \
+TC_CPU_SOURCES	+=	lib/cpus/aarch64/cortex_a520.S \
 			lib/cpus/aarch64/cortex_a720.S \
 			lib/cpus/aarch64/cortex_x4.S
 endif