diff --git a/arch/arm/src/cxd56xx/cxd56_delay.c b/arch/arm/src/cxd56xx/cxd56_delay.c
index 026520da8ac..9d063fb1f58 100644
--- a/arch/arm/src/cxd56xx/cxd56_delay.c
+++ b/arch/arm/src/cxd56xx/cxd56_delay.c
@@ -39,7 +39,11 @@
 #ifdef CONFIG_CXD56_USE_SYSBUS
 #  define CXD56XX_LOOPSPERMSEC_156MHZ 15533ull
 #else
-#  define CXD56XX_LOOPSPERMSEC_156MHZ 7428ull
+#  ifdef CONFIG_CXD56_SUBCORE
+#    define CXD56XX_LOOPSPERMSEC_156MHZ 10405ull
+#  else
+#    define CXD56XX_LOOPSPERMSEC_156MHZ 7428ull
+#  endif
 #endif
 
 #define CXD56XX_LOOPSPERMSEC_BY_CLOCK(clock) \