diff --git a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.c b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.c
index 3acceeea95a1625c69f2b11d6e8bb80d9c30a6d8..5d6bd29cb762509f1314e4d6951e66f7beb04e33 100644
--- a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.c
+++ b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v10.c
@@ -18,8 +18,6 @@
 
 static void dbsc_setting(void)
 {
-	uint32_t md = 0;
-
 	/* BUFCAM settings */
 	/* DBSC_DBCAM0CNF0 not set */
 	io_write_32(DBSC_DBCAM0CNF1, 0x00043218);
@@ -30,26 +28,8 @@ static void dbsc_setting(void)
 	io_write_32(DBSC_DBSCHSZ0, 0x00000001);
 	io_write_32(DBSC_DBSCHRW0, 0x22421111);
 
-	md = (*((volatile uint32_t *)RST_MODEMR) & 0x000A0000) >> 17;
-
-	switch (md) {
-	case 0x0:
-		/* DDR3200 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	case 0x1:		/* MD19=0,MD17=1 : LPDDR4-3000, 4GByte(1GByte x4) */
-		/* DDR2800 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	case 0x4:		/* MD19=1,MD17=0 : LPDDR4-2400, 4GByte(1GByte x4) */
-		/* DDR2400 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	default:		/* MD19=1,MD17=1 : LPDDR4-1600, 4GByte(1GByte x4) */
-		/* DDR1600 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	}
+	/* DDR3 */
+	io_write_32(DBSC_SCFCTST2, 0x012F1123);
 
 	/* QoS Settings */
 	io_write_32(DBSC_DBSCHQOS00, 0x00000F00);
diff --git a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.c b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.c
index 6ff21cc2cc184c6367d368005c668b537b2043c9..0dfd991003f733f64c322d982d30e0d3b2963ab6 100644
--- a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.c
+++ b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v11.c
@@ -56,8 +56,6 @@
 
 static void dbsc_setting(void)
 {
-	uint32_t md = 0;
-
 	/* BUFCAM settings */
 	io_write_32(DBSC_DBCAM0CNF1, 0x00043218);
 	io_write_32(DBSC_DBCAM0CNF2, 0x000000F4);
@@ -66,26 +64,8 @@ static void dbsc_setting(void)
 	io_write_32(DBSC_DBSCHSZ0, 0x00000001);
 	io_write_32(DBSC_DBSCHRW0, 0x22421111);
 
-	md = (*((volatile uint32_t *)RST_MODEMR) & 0x000A0000) >> 17;
-
-	switch (md) {
-	case 0x0:
-		/* DDR3200 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	case 0x1:		/* MD19=0,MD17=1 : LPDDR4-3000, 4GByte(1GByte x4) */
-		/* DDR2800 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	case 0x4:		/* MD19=1,MD17=0 : LPDDR4-2400, 4GByte(1GByte x4) */
-		/* DDR2400 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	default:		/* MD19=1,MD17=1 : LPDDR4-1600, 4GByte(1GByte x4) */
-		/* DDR1600 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	}
+	/* DDR3 */
+	io_write_32(DBSC_SCFCTST2, 0x012F1123);
 
 	/* QoS Settings */
 	io_write_32(DBSC_DBSCHQOS00, 0x00000F00);
diff --git a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v30.c b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v30.c
index b82a942a727856556f5a422cd4bf1d78b2742164..4165a1e081ac4b9fbc33c66ec88a8ce72d496a09 100644
--- a/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v30.c
+++ b/drivers/staging/renesas/rcar/qos/M3/qos_init_m3_v30.c
@@ -56,8 +56,6 @@
 
 static void dbsc_setting(void)
 {
-	uint32_t md=0;
-
 	/* Register write enable */
 	io_write_32(DBSC_DBSYSCNT0, 0x00001234U);
 
@@ -69,26 +67,8 @@ static void dbsc_setting(void)
 	io_write_32(DBSC_DBSCHSZ0,   0x00000001);
 	io_write_32(DBSC_DBSCHRW0,   0x22421111);
 
-	md = (*((volatile uint32_t*)RST_MODEMR) & 0x000A0000) >> 17;
-
-	switch (md) {
-	case 0x0:
-		/* DDR3200 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	case 0x1:	//MD19=0,MD17=1 : LPDDR4-3000, 4GByte(1GByte x4)
-		/* DDR2800 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	case 0x4:	//MD19=1,MD17=0 : LPDDR4-2400, 4GByte(1GByte x4)
-		/* DDR2400 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	default:	//MD19=1,MD17=1 : LPDDR4-1600, 4GByte(1GByte x4)
-		/* DDR1600 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123);
-		break;
-	}
+	/* DDR3 */
+	io_write_32(DBSC_SCFCTST2, 0x012F1123);
 
 	/* QoS Settings */
 	io_write_32(DBSC_DBSCHQOS00,  0x00000F00);