diff --git a/arch/arm/src/armv7-m/arm_cache.c b/arch/arm/src/armv7-m/arm_cache.c
index f326316f1d..cfe27dfd25 100644
--- a/arch/arm/src/armv7-m/arm_cache.c
+++ b/arch/arm/src/armv7-m/arm_cache.c
@@ -496,6 +496,14 @@ void up_enable_dcache(void)
   uint32_t sets;
   uint32_t ways;
 
+  /* If dcache is already enabled, disable it first. */
+
+  ccr = getreg32(NVIC_CFGCON);
+  if ((ccr & NVIC_CFGCON_DC) != 0)
+    {
+      up_disable_dcache();
+    }
+
   /* Get the characteristics of the D-Cache */
 
   ccsidr = getreg32(NVIC_CCSIDR);
diff --git a/arch/arm/src/armv8-m/arm_cache.c b/arch/arm/src/armv8-m/arm_cache.c
index e7a7e504ed..12a4078be0 100644
--- a/arch/arm/src/armv8-m/arm_cache.c
+++ b/arch/arm/src/armv8-m/arm_cache.c
@@ -496,6 +496,14 @@ void up_enable_dcache(void)
   uint32_t sets;
   uint32_t ways;
 
+  /* If dcache is already enabled, disable it first. */
+
+  ccr = getreg32(NVIC_CFGCON);
+  if ((ccr & NVIC_CFGCON_DC) != 0)
+    {
+      up_disable_dcache();
+    }
+
   /* Get the characteristics of the D-Cache */
 
   ccsidr = getreg32(NVIC_CCSIDR);