diff --git a/arch/Config.in.arm b/arch/Config.in.arm
index 219215d122..a11d581c43 100644
--- a/arch/Config.in.arm
+++ b/arch/Config.in.arm
@@ -466,6 +466,14 @@ config BR2_cortex_a76_a55
 	select BR2_ARM_CPU_HAS_FP_ARMV8
 	select BR2_ARM_CPU_ARMV8A
 	select BR2_ARCH_NEEDS_GCC_AT_LEAST_9
+config BR2_cortex_a78
+	bool "cortex-A78"
+	select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
+	select BR2_ARM_CPU_HAS_NEON if !BR2_ARCH_IS_64
+	select BR2_ARM_CPU_HAS_THUMB2 if !BR2_ARCH_IS_64
+	select BR2_ARM_CPU_HAS_FP_ARMV8
+	select BR2_ARM_CPU_ARMV8A
+	select BR2_ARCH_NEEDS_GCC_AT_LEAST_11
 config BR2_neoverse_n1
 	bool "neoverse-N1 (aka ares)"
 	select BR2_ARM_CPU_HAS_ARM if !BR2_ARCH_IS_64
@@ -876,6 +884,7 @@ config BR2_GCC_TARGET_CPU
 	default "cortex-a75.cortex-a55"	if BR2_cortex_a75_a55
 	default "cortex-a76"	if BR2_cortex_a76
 	default "cortex-a76.cortex-a55"	if BR2_cortex_a76_a55
+	default "cortex-a78"	if BR2_cortex_a78
 	default "neoverse-n1"	if BR2_neoverse_n1
 	default "tsv110"	if BR2_tsv110
 	# armv8.4a