diff --git a/plat/st/stm32mp1/platform.mk b/plat/st/stm32mp1/platform.mk
index b0ba82a..9998236 100644
--- a/plat/st/stm32mp1/platform.mk
+++ b/plat/st/stm32mp1/platform.mk
@@ -16,6 +16,11 @@
 $(eval $(call assert_boolean,PLAT_XLAT_TABLES_DYNAMIC))
 $(eval $(call add_define,PLAT_XLAT_TABLES_DYNAMIC))
 
+ifeq ($(AARCH32_SP),sp_min)
+# Disable Neon support: sp_min runtime may conflict with non-secure world
+TF_CFLAGS		+=      -mfloat-abi=soft
+endif
+
 # Not needed for Cortex-A7
 WORKAROUND_CVE_2017_5715:=	0