rcar_gen3: drivers: qos: H3: Drop MD pin check

The DBSC_SCFCTST2 is always written with the same value, no matter
what the MD pin value is, drop the entire check and just write the
register with the one and only possible value.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: I4d8926eb3c44c61ec777c05c581ce8247f13daa6

drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v11.c

@@ -20,8 +20,6 @@
 
 static void dbsc_setting(void)
 {
-	uint32_t md = 0;
-
 	/* BUFCAM settings */
 	/* DBSC_DBCAM0CNF0 not set */
 	io_write_32(DBSC_DBCAM0CNF1, 0x00044218);
@@ -32,26 +30,8 @@ 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 */
+	/* DDR3 */
 	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;
-	}
 
 	/* QoS Settings */
 	io_write_32(DBSC_DBSCHQOS00, 0x0000F000);

drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v20.c

@@ -57,8 +57,6 @@
 
 static void dbsc_setting(void)
 {
-	uint32_t md = 0;
-
 	/* Register write enable */
 	io_write_32(DBSC_DBSYSCNT0, 0x00001234U);
 
@@ -70,26 +68,8 @@ static void dbsc_setting(void)
 	io_write_32(DBSC_DBSCHSZ0, 0x00000001U);
 	io_write_32(DBSC_DBSCHRW0, 0x22421111U);
 
-	md = (*((volatile uint32_t *)RST_MODEMR) & 0x000A0000) >> 17;
-
-	switch (md) {
-	case 0x0:
-		/* DDR3200 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	case 0x1:		/* MD19=0,MD17=1 : LPDDR4-3000, 4GByte(1GByte x4) */
-		/* DDR2800 */
+	/* DDR3 */
 	io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	case 0x4:		/* MD19=1,MD17=0 : LPDDR4-2400, 4GByte(1GByte x4) */
-		/* DDR2400 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	default:		/* MD19=1,MD17=1 : LPDDR4-1600, 4GByte(1GByte x4) */
-		/* DDR1600 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	}
 
 	/* QoS Settings */
 	io_write_32(DBSC_DBSCHQOS00, 0x00000F00U);

drivers/staging/renesas/rcar/qos/H3/qos_init_h3_v30.c

@@ -57,8 +57,6 @@
 
 static void dbsc_setting(void)
 {
-	uint32_t md = 0;
-
 	/* Register write enable */
 	io_write_32(DBSC_DBSYSCNT0, 0x00001234U);
 
@@ -70,26 +68,8 @@ static void dbsc_setting(void)
 	io_write_32(DBSC_DBSCHSZ0, 0x00000001U);
 	io_write_32(DBSC_DBSCHRW0, 0x22421111U);
 
-	md = (*((volatile uint32_t *)RST_MODEMR) & 0x000A0000) >> 17;
-
-	switch (md) {
-	case 0x0:
-		/* DDR3200 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	case 0x1:		/* MD19=0,MD17=1 : LPDDR4-3000, 4GByte(1GByte x4) */
-		/* DDR2800 */
+	/* DDR3 */
 	io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	case 0x4:		/* MD19=1,MD17=0 : LPDDR4-2400, 4GByte(1GByte x4) */
-		/* DDR2400 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	default:		/* MD19=1,MD17=1 : LPDDR4-1600, 4GByte(1GByte x4) */
-		/* DDR1600 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	}
 
 	/* QoS Settings */
 	io_write_32(DBSC_DBSCHQOS00, 0x00000F00U);

drivers/staging/renesas/rcar/qos/H3/qos_init_h3n_v30.c

@@ -57,8 +57,6 @@
 
 static void dbsc_setting(void)
 {
-	uint32_t md = 0;
-
 	/* Register write enable */
 	io_write_32(DBSC_DBSYSCNT0, 0x00001234U);
 
@@ -70,26 +68,8 @@ static void dbsc_setting(void)
 	io_write_32(DBSC_DBSCHSZ0, 0x00000001U);
 	io_write_32(DBSC_DBSCHRW0, 0x22421111U);
 
-	md = (*((volatile uint32_t *)RST_MODEMR) & 0x000A0000) >> 17;
-
-	switch (md) {
-	case 0x0:
-		/* DDR3200 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	case 0x1:		/* MD19=0,MD17=1 : LPDDR4-3000, 4GByte(1GByte x4) */
-		/* DDR2800 */
+	/* DDR3 */
 	io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	case 0x4:		/* MD19=1,MD17=0 : LPDDR4-2400, 4GByte(1GByte x4) */
-		/* DDR2400 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	default:		/* MD19=1,MD17=1 : LPDDR4-1600, 4GByte(1GByte x4) */
-		/* DDR1600 */
-		io_write_32(DBSC_SCFCTST2, 0x012F1123U);
-		break;
-	}
 
 	/* QoS Settings */
 	io_write_32(DBSC_DBSCHQOS00, 0x00000F00U);