diff --git a/arch/arm64/core/Kconfig b/arch/arm64/core/Kconfig
index 038e9a81780..71b2eb0b942 100644
--- a/arch/arm64/core/Kconfig
+++ b/arch/arm64/core/Kconfig
@@ -28,6 +28,13 @@ config CPU_CORTEX_A53
 	help
 	  This option signifies the use of a Cortex-A53 CPU
 
+config CPU_CORTEX_A55
+	bool
+	select CPU_CORTEX_A
+	select ARMV8_A
+	help
+	  This option signifies the use of a Cortex-A55 CPU
+
 config CPU_CORTEX_A72
 	bool
 	select CPU_CORTEX_A
diff --git a/cmake/gcc-m-cpu.cmake b/cmake/gcc-m-cpu.cmake
index 162038dc2cb..b693ddebdec 100644
--- a/cmake/gcc-m-cpu.cmake
+++ b/cmake/gcc-m-cpu.cmake
@@ -73,6 +73,8 @@ if("${ARCH}" STREQUAL "arm")
 elseif("${ARCH}" STREQUAL "arm64")
   if(CONFIG_CPU_CORTEX_A53)
     set(GCC_M_CPU cortex-a53)
+  elseif(CONFIG_CPU_CORTEX_A55)
+    set(GCC_M_CPU cortex-a55)
   elseif(CONFIG_CPU_CORTEX_A72)
     set(GCC_M_CPU cortex-a72)
   elseif(CONFIG_CPU_CORTEX_R82)