diff --git a/drivers/renesas/rcar/watchdog/swdt.c b/drivers/renesas/rcar/watchdog/swdt.c
index 6df47b9..f9dbf86 100644
--- a/drivers/renesas/rcar/watchdog/swdt.c
+++ b/drivers/renesas/rcar/watchdog/swdt.c
@@ -72,9 +72,9 @@
 
 void rcar_swdt_init(void)
 {
-	uint32_t rmsk, val, sr;
+	uint32_t rmsk, sr;
 #if (RCAR_LSI != RCAR_E3)
-	uint32_t reg, product_cut, chk_data;
+	uint32_t reg, val, product_cut, chk_data;
 
 	reg = mmio_read_32(RCAR_PRR);
 	product_cut = reg & (RCAR_PRODUCT_MASK | RCAR_CUT_MASK);
diff --git a/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.c b/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.c
index 800105e..716d15d 100644
--- a/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.c
+++ b/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.c
@@ -1046,7 +1046,7 @@
    } else {
       NOTICE("[COLD_BOOT]");
    } /*  ddrBackup */
-   err=dram_update_boot_status(ddrBackup);
+   err=rcar_dram_update_boot_status(ddrBackup);
    if(err){
       NOTICE("[BOOT_STATUS_UPDATE_ERROR]");
       return INITDRAM_ERR_I;
@@ -1500,7 +1500,7 @@
 /*******************************************************************************
  *  DDR Initialize entry for IPL
  ******************************************************************************/
-int32_t InitDram(void)
+int32_t rcar_dram_init(void)
 {
     uint32_t dataL;
     uint32_t failcount;
@@ -1516,7 +1516,7 @@
         NOTICE("BL2: DDR1856(%s)", RCAR_E3_DDR_VERSION);
     } /*  ddr */
 
-    dram_get_boot_status(&ddrBackup);
+    rcar_dram_get_boot_status(&ddrBackup);
 
     if(ddrBackup==DRAM_BOOT_STATUS_WARM){
         dataL=recovery_from_backup_mode(); /*  WARM boot */
diff --git a/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h b/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h
index b202b02..115765b 100644
--- a/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h
+++ b/drivers/staging/renesas/rcar/ddr/ddr_a/ddr_init_e3.h
@@ -24,7 +24,7 @@
    #endif
 #endif
 
-extern int32_t InitDram(void);
+extern int32_t rcar_dram_init(void);
 #define INITDRAM_OK (0)
 #define INITDRAM_NG (0xffffffff)
 #define INITDRAM_ERR_I (0xffffffff)