MULTILIB_OPTIONS += mthumb
MULTILIB_DIRNAMES += thumb
-MULTILIB_OPTIONS += march=armv5te+fp/march=armv6-m/march=armv7-a/march=armv7-a+simd/march=armv7-r/march=armv7-r+fp/mcpu=cortex-m3/mcpu=cortex-m4/mcpu=cortex-m4+nofp/mcpu=cortex-m7
-MULTILIB_DIRNAMES += armv5te+fp armv6-m armv7-a armv7-a+simd armv7-r armv7-r+fp cortex-m3 cortex-m4 cortex-m4+nofp cortex-m7
+MULTILIB_OPTIONS += march=armv5te+fp/march=armv6-m/march=armv7-a/march=armv7-a+simd/march=armv7-r/march=armv7-r+fp/mcpu=cortex-r52/mcpu=cortex-m3/mcpu=cortex-m4/mcpu=cortex-m4+nofp/mcpu=cortex-m7
+MULTILIB_DIRNAMES += armv5te+fp armv6-m armv7-a armv7-a+simd armv7-r armv7-r+fp cortex-r52 cortex-m3 cortex-m4 cortex-m4+nofp cortex-m7
MULTILIB_OPTIONS += mfloat-abi=hard
MULTILIB_DIRNAMES += hard
MULTILIB_REQUIRED += mthumb/march=armv7-a
MULTILIB_REQUIRED += mthumb/march=armv7-r+fp/mfloat-abi=hard
MULTILIB_REQUIRED += mthumb/march=armv7-r
+MULTILIB_REQUIRED += mthumb/mcpu=cortex-r52/mfloat-abi=hard
MULTILIB_REQUIRED += mthumb/mcpu=cortex-m3
MULTILIB_REQUIRED += mthumb/mcpu=cortex-m4/mfloat-abi=hard
MULTILIB_REQUIRED += mthumb/mcpu=cortex-m4+nofp