diff --git a/cmd/cros_ec.c b/cmd/cros_ec.c
index abf11f07b2..9d42f870dc 100644
--- a/cmd/cros_ec.c
+++ b/cmd/cros_ec.c
@@ -19,6 +19,29 @@ static const char * const ec_current_image_name[] = {"unknown", "RO", "RW"};
 
 DECLARE_GLOBAL_DATA_PTR;
 
+/**
+ * Decode a flash region parameter
+ *
+ * @param argc Number of params remaining
+ * @param argv List of remaining parameters
+ * @return flash region (EC_FLASH_REGION_...) or -1 on error
+ */
+static int cros_ec_decode_region(int argc, char * const argv[])
+{
+	if (argc > 0) {
+		if (0 == strcmp(*argv, "rw"))
+			return EC_FLASH_REGION_RW;
+		else if (0 == strcmp(*argv, "ro"))
+			return EC_FLASH_REGION_RO;
+
+		debug("%s: Invalid region '%s'\n", __func__, *argv);
+	} else {
+		debug("%s: Missing region parameter\n", __func__);
+	}
+
+	return -1;
+}
+
 /**
  * Perform a flash read or write command
  *
diff --git a/drivers/misc/cros_ec.c b/drivers/misc/cros_ec.c
index 807373053c..759bb46c57 100644
--- a/drivers/misc/cros_ec.c
+++ b/drivers/misc/cros_ec.c
@@ -1024,22 +1024,6 @@ int cros_ec_register(struct udevice *dev)
 	return 0;
 }
 
-int cros_ec_decode_region(int argc, char * const argv[])
-{
-	if (argc > 0) {
-		if (0 == strcmp(*argv, "rw"))
-			return EC_FLASH_REGION_RW;
-		else if (0 == strcmp(*argv, "ro"))
-			return EC_FLASH_REGION_RO;
-
-		debug("%s: Invalid region '%s'\n", __func__, *argv);
-	} else {
-		debug("%s: Missing region parameter\n", __func__);
-	}
-
-	return -1;
-}
-
 int cros_ec_decode_ec_flash(const void *blob, int node,
 			    struct fdt_cros_ec *config)
 {
diff --git a/include/cros_ec.h b/include/cros_ec.h
index ec7517c5ae..0271f2b827 100644
--- a/include/cros_ec.h
+++ b/include/cros_ec.h
@@ -250,15 +250,6 @@ void cros_ec_dump_data(const char *name, int cmd, const uint8_t *data, int len);
  */
 int cros_ec_calc_checksum(const uint8_t *data, int size);
 
-/**
- * Decode a flash region parameter
- *
- * @param argc	Number of params remaining
- * @param argv	List of remaining parameters
- * @return flash region (EC_FLASH_REGION_...) or -1 on error
- */
-int cros_ec_decode_region(int argc, char * const argv[]);
-
 int cros_ec_flash_erase(struct cros_ec_dev *dev, uint32_t offset,
 		uint32_t size);