diff --git a/board/amcc/ebony/ebony.c b/board/amcc/ebony/ebony.c
index 0543bad138..e61b5de2d8 100644
--- a/board/amcc/ebony/ebony.c
+++ b/board/amcc/ebony/ebony.c
@@ -131,11 +131,11 @@ long int fixed_sdram(void)
 	/*--------------------------------------------------------------------
 	 * Setup some default
 	 *------------------------------------------------------------------*/
-	mtsdram(mem_uabba, 0x00000000);	/* ubba=0 (default)             */
-	mtsdram(mem_slio, 0x00000000);	/* rdre=0 wrre=0 rarw=0         */
-	mtsdram(mem_devopt, 0x00000000);	/* dll=0 ds=0 (normal)          */
-	mtsdram(mem_wddctr, 0x00000000);	/* wrcp=0 dcd=0                 */
-	mtsdram(mem_clktr, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0    */
+	mtsdram(SDRAM0_UABBA, 0x00000000);	/* ubba=0 (default)             */
+	mtsdram(SDRAM0_SLIO, 0x00000000);	/* rdre=0 wrre=0 rarw=0         */
+	mtsdram(SDRAM0_DEVOPT, 0x00000000);	/* dll=0 ds=0 (normal)          */
+	mtsdram(SDRAM0_WDDCTR, 0x00000000);	/* wrcp=0 dcd=0                 */
+	mtsdram(SDRAM0_CLKTR, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0    */
 
 	/*--------------------------------------------------------------------
 	 * Setup for board-specific specific mem
@@ -143,20 +143,20 @@ long int fixed_sdram(void)
 	/*
 	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
 	 */
-	mtsdram(mem_b0cr, 0x000a4001);	/* SDBA=0x000 128MB, Mode 3, enabled */
-	mtsdram(mem_tr0, 0x410a4012);	/* WR=2  WD=1 CL=2.5 PA=3 CP=4 LD=2 */
+	mtsdram(SDRAM0_B0CR, 0x000a4001);	/* SDBA=0x000 128MB, Mode 3, enabled */
+	mtsdram(SDRAM0_TR0, 0x410a4012);	/* WR=2  WD=1 CL=2.5 PA=3 CP=4 LD=2 */
 	/* RA=10 RD=3                       */
-	mtsdram(mem_tr1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
-	mtsdram(mem_rtr, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB     */
-	mtsdram(mem_cfg1, 0x00000000);	/* Self-refresh exit, disable PM    */
+	mtsdram(SDRAM0_TR1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
+	mtsdram(SDRAM0_RTR, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB     */
+	mtsdram(SDRAM0_CFG1, 0x00000000);	/* Self-refresh exit, disable PM    */
 	udelay(400);		/* Delay 200 usecs (min)            */
 
 	/*--------------------------------------------------------------------
 	 * Enable the controller, then wait for DCEN to complete
 	 *------------------------------------------------------------------*/
-	mtsdram(mem_cfg0, 0x86000000);	/* DCEN=1, PMUD=1, 64-bit           */
+	mtsdram(SDRAM0_CFG0, 0x86000000);	/* DCEN=1, PMUD=1, 64-bit           */
 	for (;;) {
-		mfsdram(mem_mcsts, reg);
+		mfsdram(SDRAM0_MCSTS, reg);
 		if (reg & 0x80000000)
 			break;
 	}
diff --git a/board/amcc/ocotea/ocotea.c b/board/amcc/ocotea/ocotea.c
index 8513f43a8f..d776edabcd 100644
--- a/board/amcc/ocotea/ocotea.c
+++ b/board/amcc/ocotea/ocotea.c
@@ -241,11 +241,11 @@ long int fixed_sdram (void)
 	/*--------------------------------------------------------------------
 	 * Setup some default
 	 *------------------------------------------------------------------*/
-	mtsdram (mem_uabba, 0x00000000);	/* ubba=0 (default)             */
-	mtsdram (mem_slio, 0x00000000);		/* rdre=0 wrre=0 rarw=0         */
-	mtsdram (mem_devopt, 0x00000000);	/* dll=0 ds=0 (normal)          */
-	mtsdram (mem_wddctr, 0x00000000);	/* wrcp=0 dcd=0                 */
-	mtsdram (mem_clktr, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0    */
+	mtsdram (SDRAM0_UABBA, 0x00000000);	/* ubba=0 (default)             */
+	mtsdram (SDRAM0_SLIO, 0x00000000);		/* rdre=0 wrre=0 rarw=0         */
+	mtsdram (SDRAM0_DEVOPT, 0x00000000);	/* dll=0 ds=0 (normal)          */
+	mtsdram (SDRAM0_WDDCTR, 0x00000000);	/* wrcp=0 dcd=0                 */
+	mtsdram (SDRAM0_CLKTR, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0    */
 
 	/*--------------------------------------------------------------------
 	 * Setup for board-specific specific mem
@@ -253,20 +253,20 @@ long int fixed_sdram (void)
 	/*
 	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
 	 */
-	mtsdram (mem_b0cr, 0x000a4001);	/* SDBA=0x000 128MB, Mode 3, enabled */
-	mtsdram (mem_tr0, 0x410a4012);	/* WR=2  WD=1 CL=2.5 PA=3 CP=4 LD=2 */
+	mtsdram (SDRAM0_B0CR, 0x000a4001);	/* SDBA=0x000 128MB, Mode 3, enabled */
+	mtsdram (SDRAM0_TR0, 0x410a4012);	/* WR=2  WD=1 CL=2.5 PA=3 CP=4 LD=2 */
 	/* RA=10 RD=3                       */
-	mtsdram (mem_tr1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
-	mtsdram (mem_rtr, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB     */
-	mtsdram (mem_cfg1, 0x00000000);	/* Self-refresh exit, disable PM    */
+	mtsdram (SDRAM0_TR1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
+	mtsdram (SDRAM0_RTR, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB     */
+	mtsdram (SDRAM0_CFG1, 0x00000000);	/* Self-refresh exit, disable PM    */
 	udelay (400);			/* Delay 200 usecs (min)            */
 
 	/*--------------------------------------------------------------------
 	 * Enable the controller, then wait for DCEN to complete
 	 *------------------------------------------------------------------*/
-	mtsdram (mem_cfg0, 0x86000000);	/* DCEN=1, PMUD=1, 64-bit           */
+	mtsdram (SDRAM0_CFG0, 0x86000000);	/* DCEN=1, PMUD=1, 64-bit           */
 	for (;;) {
-		mfsdram (mem_mcsts, reg);
+		mfsdram (SDRAM0_MCSTS, reg);
 		if (reg & 0x80000000)
 			break;
 	}
diff --git a/board/amcc/yosemite/yosemite.c b/board/amcc/yosemite/yosemite.c
index 731d441526..1ec13eb6b5 100644
--- a/board/amcc/yosemite/yosemite.c
+++ b/board/amcc/yosemite/yosemite.c
@@ -237,7 +237,7 @@ void sdram_tr1_set(int ram_address, int* tr1_value)
 	/* go through all possible SDRAM0_TR1[RDCT] values */
 	for (i=0; i<=0x1ff; i++) {
 		/* set the current value for TR1 */
-		mtsdram(mem_tr1, (0x80800800 | i));
+		mtsdram(SDRAM0_TR1, (0x80800800 | i));
 
 		/* write values */
 		for (j=0; j<NUM_TRIES; j++) {
@@ -289,15 +289,15 @@ phys_size_t initdram(int board)
 	/*--------------------------------------------------------------------
 	 * Setup some default
 	 *------------------------------------------------------------------*/
-	mtsdram(mem_uabba, 0x00000000);	/* ubba=0 (default)             */
-	mtsdram(mem_slio, 0x00000000);	/* rdre=0 wrre=0 rarw=0         */
-	mtsdram(mem_devopt, 0x00000000);	/* dll=0 ds=0 (normal)          */
-	mtsdram(mem_clktr, 0x40000000);	/* ?? */
-	mtsdram(mem_wddctr, 0x40000000);	/* ?? */
+	mtsdram(SDRAM0_UABBA, 0x00000000);	/* ubba=0 (default)             */
+	mtsdram(SDRAM0_SLIO, 0x00000000);	/* rdre=0 wrre=0 rarw=0         */
+	mtsdram(SDRAM0_DEVOPT, 0x00000000);	/* dll=0 ds=0 (normal)          */
+	mtsdram(SDRAM0_CLKTR, 0x40000000);	/* ?? */
+	mtsdram(SDRAM0_WDDCTR, 0x40000000);	/* ?? */
 
 	/*clear this first, if the DDR is enabled by a debugger
 	  then you can not make changes. */
-	mtsdram(mem_cfg0, 0x00000000);	/* Disable EEC */
+	mtsdram(SDRAM0_CFG0, 0x00000000);	/* Disable EEC */
 
 	/*--------------------------------------------------------------------
 	 * Setup for board-specific specific mem
@@ -305,29 +305,29 @@ phys_size_t initdram(int board)
 	/*
 	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
 	 */
-	mtsdram(mem_b0cr, 0x000a4001);	/* SDBA=0x000 128MB, Mode 3, enabled */
-	mtsdram(mem_b1cr, 0x080a4001);	/* SDBA=0x080 128MB, Mode 3, enabled */
+	mtsdram(SDRAM0_B0CR, 0x000a4001);	/* SDBA=0x000 128MB, Mode 3, enabled */
+	mtsdram(SDRAM0_B1CR, 0x080a4001);	/* SDBA=0x080 128MB, Mode 3, enabled */
 
-	mtsdram(mem_tr0, 0x410a4012);	/* ?? */
-	mtsdram(mem_rtr, 0x04080000);	/* ?? */
-	mtsdram(mem_cfg1, 0x00000000);	/* Self-refresh exit, disable PM    */
-	mtsdram(mem_cfg0, 0x30000000);	/* Disable EEC */
+	mtsdram(SDRAM0_TR0, 0x410a4012);	/* ?? */
+	mtsdram(SDRAM0_RTR, 0x04080000);	/* ?? */
+	mtsdram(SDRAM0_CFG1, 0x00000000);	/* Self-refresh exit, disable PM    */
+	mtsdram(SDRAM0_CFG0, 0x30000000);	/* Disable EEC */
 	udelay(400);		/* Delay 200 usecs (min)            */
 
 	/*--------------------------------------------------------------------
 	 * Enable the controller, then wait for DCEN to complete
 	 *------------------------------------------------------------------*/
-	mtsdram(mem_cfg0, 0x80000000);	/* Enable */
+	mtsdram(SDRAM0_CFG0, 0x80000000);	/* Enable */
 
 	for (;;) {
-		mfsdram(mem_mcsts, reg);
+		mfsdram(SDRAM0_MCSTS, reg);
 		if (reg & 0x80000000)
 			break;
 	}
 
 	sdram_tr1_set(0x00000000, &tr1_bank1);
 	sdram_tr1_set(0x08000000, &tr1_bank2);
-	mtsdram(mem_tr1, (((tr1_bank1+tr1_bank2)/2) | 0x80800800));
+	mtsdram(SDRAM0_TR1, (((tr1_bank1+tr1_bank2)/2) | 0x80800800));
 
 	return CONFIG_SYS_SDRAM_BANKS * (CONFIG_SYS_KBYTES_SDRAM * 1024);	/* return bytes */
 }
diff --git a/board/cray/L1/L1.c b/board/cray/L1/L1.c
index 79130711d4..1656e8ac03 100644
--- a/board/cray/L1/L1.c
+++ b/board/cray/L1/L1.c
@@ -198,7 +198,7 @@ static void init_sdram (void)
  unsigned long tmp;
 
 	/* write SDRAM bank 0 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	mtdcr (SDRAM0_CFGDATA, 0x00062001);
 
 /* Set the SDRAM Timing reg, SDTR1 and the refresh timer reg, RTR.	*/
@@ -212,25 +212,25 @@ static void init_sdram (void)
 	/* divisor = ((mfdcr(strap)>> 28) & 0x3); */
 
 /* write SDRAM timing for 100MHz. */
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	mtdcr (SDRAM0_CFGDATA, 0x0086400D);
 
 /* write SDRAM refresh interval register */
-	mtdcr (SDRAM0_CFGADDR, mem_rtr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 	mtdcr (SDRAM0_CFGDATA, 0x05F00000);
 	udelay (200);
 
 /* sdram controller.*/
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	mtdcr (SDRAM0_CFGDATA, 0x90800000);
 	udelay (200);
 
 /* initially, disable ECC on all banks */
 	udelay (200);
-	mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	tmp &= 0xff0fffff;
-	mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 	mtdcr (SDRAM0_CFGDATA, tmp);
 
 	return;
@@ -282,15 +282,15 @@ int testdram (void)
 	}
 	printf ("Enable ECC..");
 
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	tmp = (mfdcr (SDRAM0_CFGDATA) & ~0xFFE00000) | 0x90800000;
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	mtdcr (SDRAM0_CFGDATA, tmp);
 	udelay (600);
 	for (p = (unsigned long) 0; ((unsigned long) p < L1_MEMSIZE); *p++ = 0L)
 		;
 	udelay (400);
-	mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	tmp |= 0x00800000;
 	mtdcr (SDRAM0_CFGDATA, tmp);
diff --git a/board/csb272/csb272.c b/board/csb272/csb272.c
index 740e3ac6f5..d6d65cf45c 100644
--- a/board/csb272/csb272.c
+++ b/board/csb272/csb272.c
@@ -135,28 +135,28 @@ phys_size_t initdram (int board_type)
 
 	tot_size = 0;
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
diff --git a/board/csb272/init.S b/board/csb272/init.S
index 15b26f8bf8..a6b0d4045a 100644
--- a/board/csb272/init.S
+++ b/board/csb272/init.S
@@ -175,26 +175,26 @@ sdram_init:
 	 * Disable memory controller to allow
 	 * values to be changed.
 	 */
-	WDCR_SDRAM(mem_mcopt1, 0x00000000)
+	WDCR_SDRAM(SDRAM0_CFG, 0x00000000)
 
 	/*
 	 * Configure Memory Banks
 	 */
-	WDCR_SDRAM(mem_mb0cf, 0x00084001)
-	WDCR_SDRAM(mem_mb1cf, 0x00000000)
-	WDCR_SDRAM(mem_mb2cf, 0x00000000)
-	WDCR_SDRAM(mem_mb3cf, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B0CR, 0x00084001)
+	WDCR_SDRAM(SDRAM0_B1CR, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B2CR, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B3CR, 0x00000000)
 
 	/*
 	 * Set up SDTR1 (SDRAM Timing Register)
 	 */
-	WDCR_SDRAM(mem_sdtr1, 0x00854009)
+	WDCR_SDRAM(SDRAM0_TR, 0x00854009)
 
 	/*
 	 * Set RTR (Refresh Timing Register)
 	 */
-	WDCR_SDRAM(mem_rtr,   0x10000000)
-	/* WDCR_SDRAM(mem_rtr,   0x05f00000) */
+	WDCR_SDRAM(SDRAM0_RTR,   0x10000000)
+	/* WDCR_SDRAM(SDRAM0_RTR,   0x05f00000) */
 
 	/********************************************************************
 	 * Delay to ensure 200usec have elapsed since reset. Assume worst
@@ -210,7 +210,7 @@ sdram_init:
 	/********************************************************************
 	 * Set memory controller options reg, MCOPT1.
 	 *******************************************************************/
-	WDCR_SDRAM(mem_mcopt1,0x80800000)
+	WDCR_SDRAM(SDRAM0_CFG,0x80800000)
 
 ..sdri_done:
 	blr				/* Return to calling function */
diff --git a/board/csb472/csb472.c b/board/csb472/csb472.c
index 0c7760a02f..20d34adfdd 100644
--- a/board/csb472/csb472.c
+++ b/board/csb472/csb472.c
@@ -103,28 +103,28 @@ phys_size_t initdram (int board_type)
 
 	tot_size = 0;
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
diff --git a/board/csb472/init.S b/board/csb472/init.S
index 105cb71bec..b31bd04550 100644
--- a/board/csb472/init.S
+++ b/board/csb472/init.S
@@ -171,26 +171,26 @@ sdram_init:
 	 * Disable memory controller to allow
 	 * values to be changed.
 	 */
-	WDCR_SDRAM(mem_mcopt1, 0x00000000)
+	WDCR_SDRAM(SDRAM0_CFG, 0x00000000)
 
 	/*
 	 * Configure Memory Banks
 	 */
-	WDCR_SDRAM(mem_mb0cf, 0x00062001)
-	WDCR_SDRAM(mem_mb1cf, 0x00000000)
-	WDCR_SDRAM(mem_mb2cf, 0x00000000)
-	WDCR_SDRAM(mem_mb3cf, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B0CR, 0x00062001)
+	WDCR_SDRAM(SDRAM0_B1CR, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B2CR, 0x00000000)
+	WDCR_SDRAM(SDRAM0_B3CR, 0x00000000)
 
 	/*
 	 * Set up SDTR1 (SDRAM Timing Register)
 	 */
-	WDCR_SDRAM(mem_sdtr1, 0x00854009)
+	WDCR_SDRAM(SDRAM0_TR, 0x00854009)
 
 	/*
 	 * Set RTR (Refresh Timing Register)
 	 */
-	WDCR_SDRAM(mem_rtr,   0x10000000)
-	/* WDCR_SDRAM(mem_rtr,   0x05f00000) */
+	WDCR_SDRAM(SDRAM0_RTR,   0x10000000)
+	/* WDCR_SDRAM(SDRAM0_RTR,   0x05f00000) */
 
 	/********************************************************************
 	 * Delay to ensure 200usec have elapsed since reset. Assume worst
@@ -206,7 +206,7 @@ sdram_init:
 	/********************************************************************
 	 * Set memory controller options reg, MCOPT1.
 	 *******************************************************************/
-	WDCR_SDRAM(mem_mcopt1,0x80800000)
+	WDCR_SDRAM(SDRAM0_CFG,0x80800000)
 
 ..sdri_done:
 	blr				/* Return to calling function */
diff --git a/board/eric/init.S b/board/eric/init.S
index 16ab11eae2..c18663a75d 100644
--- a/board/eric/init.S
+++ b/board/eric/init.S
@@ -228,7 +228,7 @@ sdram_init:
 	/* Set MB0CF for bank 0. (0-32MB) Address Mode 4 since 12x8(2) */
 	/*------------------------------------------------------------------- */
 
-	addi    r4,0,mem_mb0cf
+	addi    r4,0,SDRAM0_B0CR
 	mtdcr   SDRAM0_CFGADDR,r4
 	addis   r4,0,MB0CF@h
 	ori     r4,r4,MB0CF@l
@@ -238,7 +238,7 @@ sdram_init:
 	/* Set MB1CF for bank 1. (32MB-64MB) Address Mode 4 since 12x8(2) */
 	/*------------------------------------------------------------------- */
 
-	addi    r4,0,mem_mb1cf
+	addi    r4,0,SDRAM0_B1CR
 	mtdcr   SDRAM0_CFGADDR,r4
 	addis   r4,0,MB1CF@h
 	ori     r4,r4,MB1CF@l
@@ -248,7 +248,7 @@ sdram_init:
 	/* Set MB2CF for bank 2. off */
 	/*------------------------------------------------------------------- */
 
-	addi    r4,0,mem_mb2cf
+	addi    r4,0,SDRAM0_B2CR
 	mtdcr   SDRAM0_CFGADDR,r4
 	addis   r4,0,MB2CF@h
 	ori     r4,r4,MB2CF@l
@@ -258,7 +258,7 @@ sdram_init:
 	/* Set MB3CF for bank 3. off */
 	/*------------------------------------------------------------------- */
 
-	addi    r4,0,mem_mb3cf
+	addi    r4,0,SDRAM0_B3CR
 	mtdcr   SDRAM0_CFGADDR,r4
 	addis   r4,0,MB3CF@h
 	ori     r4,r4,MB3CF@l
@@ -305,14 +305,14 @@ sdram_init:
 	/*------------------------------------------------------------------- */
 	/* Set SDTR1 */
 	/*------------------------------------------------------------------- */
-	addi    r4,0,mem_sdtr1
+	addi    r4,0,SDRAM0_TR
 	mtdcr   SDRAM0_CFGADDR,r4
 	mtdcr   SDRAM0_CFGDATA,r6
 
 	/*------------------------------------------------------------------- */
 	/* Set RTR */
 	/*------------------------------------------------------------------- */
-	addi    r4,0,mem_rtr
+	addi    r4,0,SDRAM0_RTR
 	mtdcr   SDRAM0_CFGADDR,r4
 	mtdcr   SDRAM0_CFGDATA,r7
 
@@ -332,7 +332,7 @@ sdram_init:
 	/* Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst */
 	/* read/prefetch. */
 	/*------------------------------------------------------------------- */
-	addi    r4,0,mem_mcopt1
+	addi    r4,0,SDRAM0_CFG
 	mtdcr   SDRAM0_CFGADDR,r4
 	addis   r4,0,0x8080             /* set DC_EN=1 */
 	ori     r4,r4,0x0000
diff --git a/board/exbitgen/exbitgen.c b/board/exbitgen/exbitgen.c
index ce6469d29e..50d9748c71 100644
--- a/board/exbitgen/exbitgen.c
+++ b/board/exbitgen/exbitgen.c
@@ -94,28 +94,28 @@ phys_size_t initdram (int board_type)
 
 	tot_size = 0;
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
 		tot_size += bank_size;
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 	if (tmp & 0x00000001) {
 		bank_size = 0x00400000 << ((tmp >> 17) & 0x7);
diff --git a/board/exbitgen/init.S b/board/exbitgen/init.S
index c2dae560f5..7a9726fe78 100644
--- a/board/exbitgen/init.S
+++ b/board/exbitgen/init.S
@@ -382,7 +382,7 @@ sdram_init:
 	/*----------------------------------------------------------- */
 	/* Set SDTR1  */
 	/*----------------------------------------------------------- */
-	addi    r5,0,mem_sdtr1
+	addi    r5,0,SDRAM0_TR
 	mtdcr   SDRAM0_CFGADDR,r5
 	mtdcr   SDRAM0_CFGDATA,r4
 
@@ -413,7 +413,7 @@ sdram_init:
 
 	/* Set SDRAM bank 0 register and adjust r6 for next bank */
 	/*------------------------------------------------------ */
-	addi    r7,0,mem_mb0cf
+	addi    r7,0,SDRAM0_B0CR
 	mtdcr   SDRAM0_CFGADDR,r7
 	mtdcr   SDRAM0_CFGDATA,r6
 
@@ -424,7 +424,7 @@ sdram_init:
 	cmpi	0, r12, 2
 	bne	b1skip
 
-	addi    r7,0,mem_mb1cf
+	addi    r7,0,SDRAM0_B1CR
 	mtdcr   SDRAM0_CFGADDR,r7
 	mtdcr   SDRAM0_CFGDATA,r6
 
@@ -432,7 +432,7 @@ sdram_init:
 
 	/* Set SDRAM bank 2 register and adjust r6 for next bank */
 	/*------------------------------------------------------ */
-b1skip:	addi    r7,0,mem_mb2cf
+b1skip:	addi    r7,0,SDRAM0_B2CR
 	mtdcr   SDRAM0_CFGADDR,r7
 	mtdcr   SDRAM0_CFGDATA,r6
 
@@ -443,7 +443,7 @@ b1skip:	addi    r7,0,mem_mb2cf
 	cmpi	0, r12, 2
 	bne	b3skip
 
-	addi    r7,0,mem_mb3cf
+	addi    r7,0,SDRAM0_B3CR
 	mtdcr   SDRAM0_CFGADDR,r7
 	mtdcr   SDRAM0_CFGDATA,r6
 b3skip:
@@ -456,7 +456,7 @@ b3skip:
 	addis   r7, 0, 0x05F0	/* RTR value for 100Mhz */
 	bl	rtr_2
 rtr_1:	addis	r7, 0, 0x03F8
-rtr_2:	addi    r4,0,mem_rtr
+rtr_2:	addi    r4,0,SDRAM0_RTR
 	mtdcr   SDRAM0_CFGADDR,r4
 	mtdcr   SDRAM0_CFGDATA,r7
 
@@ -476,7 +476,7 @@ rtr_2:	addi    r4,0,mem_rtr
 	/* Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst  */
 	/* read/prefetch. */
 	/*----------------------------------------------------------- */
-	addi    r4,0,mem_mcopt1
+	addi    r4,0,SDRAM0_CFG
 	mtdcr   SDRAM0_CFGADDR,r4
 	addis   r4,0,0x80C0             /* set DC_EN=1 */
 	ori     r4,r4,0x0000
diff --git a/board/g2000/g2000.c b/board/g2000/g2000.c
index 8afffdc737..092a3d8a19 100644
--- a/board/g2000/g2000.c
+++ b/board/g2000/g2000.c
@@ -116,16 +116,16 @@ long int init_sdram_static_settings(void)
 {
 #define mtsdram0(reg, data)  mtdcr(SDRAM0_CFGADDR,reg);mtdcr(SDRAM0_CFGDATA,data)
 	/* disable memcontroller so updates work */
-	mtsdram0( mem_mcopt1, MEM_MCOPT1_INIT_VAL );
-	mtsdram0( mem_rtr   , MEM_RTR_INIT_VAL   );
-	mtsdram0( mem_pmit  , MEM_PMIT_INIT_VAL  );
-	mtsdram0( mem_mb0cf , MEM_MB0CF_INIT_VAL );
-	mtsdram0( mem_mb1cf , MEM_MB1CF_INIT_VAL );
-	mtsdram0( mem_sdtr1 , MEM_SDTR1_INIT_VAL );
+	mtsdram0( SDRAM0_CFG, MEM_MCOPT1_INIT_VAL );
+	mtsdram0( SDRAM0_RTR   , MEM_RTR_INIT_VAL   );
+	mtsdram0( SDRAM0_PMIT  , MEM_PMIT_INIT_VAL  );
+	mtsdram0( SDRAM0_B0CR , MEM_MB0CF_INIT_VAL );
+	mtsdram0( SDRAM0_B1CR , MEM_MB1CF_INIT_VAL );
+	mtsdram0( SDRAM0_TR , MEM_SDTR1_INIT_VAL );
 
 	/* SDRAM have a power on delay,  500 micro should do */
 	udelay(500);
-	mtsdram0( mem_mcopt1, MEM_MCOPT1_INIT_VAL|SDRAM0_CFG_ENABLE );
+	mtsdram0( SDRAM0_CFG, MEM_MCOPT1_INIT_VAL|SDRAM0_CFG_ENABLE );
 
 	return (CONFIG_SYS_SDRAM_SIZE); /* CONFIG_SYS_SDRAM_SIZE is in G2000.h */
  }
diff --git a/board/jse/sdram.c b/board/jse/sdram.c
index bb6f85eee5..88fdd84130 100644
--- a/board/jse/sdram.c
+++ b/board/jse/sdram.c
@@ -35,59 +35,59 @@ phys_size_t initdram (int board_type)
 	/* Configure the SDRAMS */
 
 	/* disable memory controller */
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	mtdcr (SDRAM0_CFGDATA, 0x00000000);
 
 	udelay (500);
 
 	/* Clear SDRAM0_BESR0 (Bus Error Syndrome Register) */
-	mtdcr (SDRAM0_CFGADDR, mem_besra);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_BESR0);
 	mtdcr (SDRAM0_CFGDATA, 0xffffffff);
 
 	/* Clear SDRAM0_BESR1 (Bus Error Syndrome Register) */
-	mtdcr (SDRAM0_CFGADDR, mem_besrb);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_BESR1);
 	mtdcr (SDRAM0_CFGDATA, 0xffffffff);
 
 	/* Clear SDRAM0_ECCCFG (disable ECC) */
-	mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 	mtdcr (SDRAM0_CFGDATA, 0x00000000);
 
 	/* Clear SDRAM0_ECCESR (ECC Error Syndrome Register) */
-	mtdcr (SDRAM0_CFGADDR, mem_eccerr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCESR);
 	mtdcr (SDRAM0_CFGDATA, 0xffffffff);
 
 	/* Timing register: CASL=2, PTA=2, CTP=2, LDF=1, RFTA=5, RCD=2 */
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	mtdcr (SDRAM0_CFGDATA, 0x010a4016);
 
 	/* Memory Bank 0 Config == BA=0x00000000, SZ=64M, AM=3, BE=1 */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	mtdcr (SDRAM0_CFGDATA, 0x00084001);
 
 	/* Memory Bank 1 Config == BA=0x04000000, SZ=64M, AM=3, BE=1 */
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	mtdcr (SDRAM0_CFGDATA, 0x04084001);
 
 	/* Memory Bank 2 Config ==  BE=0 */
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	mtdcr (SDRAM0_CFGDATA, 0x00000000);
 
 	/* Memory Bank 3 Config ==  BE=0 */
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	mtdcr (SDRAM0_CFGDATA, 0x00000000);
 
 	/* refresh timer = 0x400  */
-	mtdcr (SDRAM0_CFGADDR, mem_rtr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 	mtdcr (SDRAM0_CFGDATA, 0x04000000);
 
 	/* Power management idle timer set to the default. */
-	mtdcr (SDRAM0_CFGADDR, mem_pmit);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_PMIT);
 	mtdcr (SDRAM0_CFGDATA, 0x07c00000);
 
 	udelay (500);
 
 	/* Enable banks (DCE=1, BPRF=1, ECCDD=1, EMDUL=1) */
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	mtdcr (SDRAM0_CFGDATA, 0x80e00000);
 
 	return SDRAM_LEN;
@@ -108,7 +108,7 @@ int testdram (void)
 #ifdef DEBUG
 	printf ("SDRAM Controller Registers --\n");
 
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	val = mfdcr (SDRAM0_CFGDATA);
 	printf ("    SDRAM0_CFG   : 0x%08x\n", val);
 
@@ -116,19 +116,19 @@ int testdram (void)
 	val = mfdcr (SDRAM0_CFGDATA);
 	printf ("    SDRAM0_STATUS: 0x%08x\n", val);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	val = mfdcr (SDRAM0_CFGDATA);
 	printf ("    SDRAM0_B0CR  : 0x%08x\n", val);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	val = mfdcr (SDRAM0_CFGDATA);
 	printf ("    SDRAM0_B1CR  : 0x%08x\n", val);
 
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	val = mfdcr (SDRAM0_CFGDATA);
 	printf ("    SDRAM0_TR    : 0x%08x\n", val);
 
-	mtdcr (SDRAM0_CFGADDR, mem_rtr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 	val = mfdcr (SDRAM0_CFGDATA);
 	printf ("    SDRAM0_RTR   : 0x%08x\n", val);
 #endif
diff --git a/board/mpl/mip405/mip405.c b/board/mpl/mip405/mip405.c
index b87df01fec..ae8eade64a 100644
--- a/board/mpl/mip405/mip405.c
+++ b/board/mpl/mip405/mip405.c
@@ -348,7 +348,7 @@ int init_sdram (void)
 	/* trc_clocks is sum of trp_clocks + tras_clocks */
 	trc_clocks = trp_clocks + tras_clocks;
 	/* get SDRAM timing register */
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	sdram_tim = mfdcr (SDRAM0_CFGDATA) & ~0x018FC01F;
 	/* insert CASL value */
 	sdram_tim |= ((unsigned long) (cal_val)) << 23;
@@ -369,7 +369,7 @@ int init_sdram (void)
 	/* insert SZ value; */
 	tmp |= ((unsigned long) sdram_table[i].sz << 17);
 	/* get SDRAM bank 0 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	sdram_bank = mfdcr (SDRAM0_CFGDATA) & ~0xFFCEE001;
 	sdram_bank |= (baseaddr | tmp | 0x01);
 
@@ -380,7 +380,7 @@ int init_sdram (void)
 #endif
 
 	/* write SDRAM timing register */
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	mtdcr (SDRAM0_CFGDATA, sdram_tim);
 
 #ifdef SDRAM_DEBUG
@@ -390,22 +390,22 @@ int init_sdram (void)
 #endif
 
 	/* write SDRAM bank 0 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	mtdcr (SDRAM0_CFGDATA, sdram_bank);
 
 	if (get_bus_freq (tmp) > 110000000) {	/* > 110MHz */
 		/* get SDRAM refresh interval register */
-		mtdcr (SDRAM0_CFGADDR, mem_rtr);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 		tmp = mfdcr (SDRAM0_CFGDATA) & ~0x3FF80000;
 		tmp |= 0x07F00000;
 	} else {
 		/* get SDRAM refresh interval register */
-		mtdcr (SDRAM0_CFGADDR, mem_rtr);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 		tmp = mfdcr (SDRAM0_CFGDATA) & ~0x3FF80000;
 		tmp |= 0x05F00000;
 	}
 	/* write SDRAM refresh interval register */
-	mtdcr (SDRAM0_CFGADDR, mem_rtr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 	mtdcr (SDRAM0_CFGDATA, tmp);
 	/* enable ECC if used */
 #if defined(ENABLE_ECC) && !defined(CONFIG_BOOT_PCI)
@@ -415,18 +415,18 @@ int init_sdram (void)
 #ifdef SDRAM_DEBUG
 		serial_puts ("disable ECC.. ");
 #endif
-		mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 		tmp = mfdcr (SDRAM0_CFGDATA);
 		tmp &= 0xff0fffff;		/* disable all banks */
-		mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 		/* set up SDRAM Controller with ECC enabled */
 #ifdef SDRAM_DEBUG
 		serial_puts ("setup SDRAM Controller.. ");
 #endif
 		mtdcr (SDRAM0_CFGDATA, tmp);
-		mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 		tmp = (mfdcr (SDRAM0_CFGDATA) & ~0xFFE00000) | 0x90800000;
-		mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 		mtdcr (SDRAM0_CFGDATA, tmp);
 		udelay (600);
 #ifdef SDRAM_DEBUG
@@ -447,7 +447,7 @@ int init_sdram (void)
 		serial_puts ("enable ECC\n");
 #endif
 		udelay (400);
-		mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 		tmp = mfdcr (SDRAM0_CFGDATA);
 		tmp |= 0x00800000;		/* enable bank 0 */
 		mtdcr (SDRAM0_CFGDATA, tmp);
@@ -456,9 +456,9 @@ int init_sdram (void)
 #endif
 	{
 		/* enable SDRAM controller with no ECC, 32-bit SDRAM width, 16 byte burst */
-		mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 		tmp = (mfdcr (SDRAM0_CFGDATA) & ~0xFFE00000) | 0x80C00000;
-		mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+		mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 		mtdcr (SDRAM0_CFGDATA, tmp);
 		udelay (400);
 	}
@@ -631,13 +631,13 @@ phys_size_t initdram (int board_type)
 	ds = 0;
 	/* since the DRAM controller is allready set up, calculate the size with the
 	   bank registers    */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	bank_reg[0] = mfdcr (SDRAM0_CFGDATA);
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	bank_reg[1] = mfdcr (SDRAM0_CFGDATA);
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	bank_reg[2] = mfdcr (SDRAM0_CFGDATA);
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	bank_reg[3] = mfdcr (SDRAM0_CFGDATA);
 	TotalSize = 0;
 	for (i = 0; i < 4; i++) {
@@ -648,7 +648,7 @@ phys_size_t initdram (int board_type)
 		} else
 			ds = 1;
 	}
-	mtdcr (SDRAM0_CFGADDR, mem_ecccf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
 	tmp = mfdcr (SDRAM0_CFGDATA);
 
 	if (!tmp)
diff --git a/board/mpl/pip405/pip405.c b/board/mpl/pip405/pip405.c
index c2d6c6fbcf..792eccc154 100644
--- a/board/mpl/pip405/pip405.c
+++ b/board/mpl/pip405/pip405.c
@@ -361,7 +361,7 @@ int board_early_init_f (void)
 		SDRAM_err ("unsupported SDRAM");
 
 	/* get SDRAM timing register */
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	tmp = mfdcr (SDRAM0_CFGDATA) & ~0x018FC01F;
 	/* insert CASL value */
 /*  tmp |= ((unsigned long)cal_val) << 23; */
@@ -385,7 +385,7 @@ int board_early_init_f (void)
 #endif
 
 	/* write SDRAM timing register */
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	mtdcr (SDRAM0_CFGDATA, tmp);
 	baseaddr = CONFIG_SYS_SDRAM_BASE;
 	bank_size = (((unsigned long) density) << 22) / 2;
@@ -418,7 +418,7 @@ int board_early_init_f (void)
 		SDRAM_err ("unsupported SDRAM");
 	}	/* endswitch */
 	/* get SDRAM bank 0 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	bank = mfdcr (SDRAM0_CFGDATA) & ~0xFFCEE001;
 	bank |= (baseaddr | tmp | 0x01);
 #ifdef SDRAM_DEBUG
@@ -434,11 +434,11 @@ int board_early_init_f (void)
 	sdram_size += bank_size;
 
 	/* write SDRAM bank 0 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	mtdcr (SDRAM0_CFGDATA, bank);
 
 	/* get SDRAM bank 1 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	bank = mfdcr (SDRAM0_CFGDATA) & ~0xFFCEE001;
 	sdram_size = 0;
 
@@ -459,11 +459,11 @@ int board_early_init_f (void)
 	serial_puts ("\n");
 #endif
 	/* write SDRAM bank 1 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	mtdcr (SDRAM0_CFGDATA, bank);
 
 	/* get SDRAM bank 2 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	bank = mfdcr (SDRAM0_CFGDATA) & ~0xFFCEE001;
 
 	bank |= (baseaddr | tmp | 0x01);
@@ -482,11 +482,11 @@ int board_early_init_f (void)
 	sdram_size += bank_size;
 
 	/* write SDRAM bank 2 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	mtdcr (SDRAM0_CFGDATA, bank);
 
 	/* get SDRAM bank 3 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	bank = mfdcr (SDRAM0_CFGDATA) & ~0xFFCEE001;
 
 #ifdef SDRAM_DEBUG
@@ -509,12 +509,12 @@ int board_early_init_f (void)
 #endif
 
 	/* write SDRAM bank 3 register */
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	mtdcr (SDRAM0_CFGDATA, bank);
 
 
 	/* get SDRAM refresh interval register */
-	mtdcr (SDRAM0_CFGADDR, mem_rtr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 	tmp = mfdcr (SDRAM0_CFGDATA) & ~0x3FF80000;
 
 	if (tmemclk < NSto10PS (16))
@@ -523,13 +523,13 @@ int board_early_init_f (void)
 		tmp |= 0x03F80000;
 
 	/* write SDRAM refresh interval register */
-	mtdcr (SDRAM0_CFGADDR, mem_rtr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 	mtdcr (SDRAM0_CFGDATA, tmp);
 
 	/* enable SDRAM controller with no ECC, 32-bit SDRAM width, 16 byte burst */
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	tmp = (mfdcr (SDRAM0_CFGDATA) & ~0xFFE00000) | 0x80E00000;
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	mtdcr (SDRAM0_CFGDATA, tmp);
 
 
@@ -619,13 +619,13 @@ phys_size_t initdram (int board_type)
 	/* since the DRAM controller is allready set up,
 	 * calculate the size with the bank registers
 	 */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	bank_reg[0] = mfdcr (SDRAM0_CFGDATA);
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	bank_reg[1] = mfdcr (SDRAM0_CFGDATA);
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	bank_reg[2] = mfdcr (SDRAM0_CFGDATA);
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	bank_reg[3] = mfdcr (SDRAM0_CFGDATA);
 	TotalSize = 0;
 	for (i = 0; i < 4; i++) {
diff --git a/board/netstal/common/fixed_sdram.c b/board/netstal/common/fixed_sdram.c
index f7baed6e91..2f21fbb4e3 100644
--- a/board/netstal/common/fixed_sdram.c
+++ b/board/netstal/common/fixed_sdram.c
@@ -29,17 +29,17 @@ void show_sdram_registers(void)
 	u32 value;
 
 	printf("SDRAM Controller Registers --\n");
-	mfsdram(mem_mcopt1, value);
+	mfsdram(SDRAM0_CFG, value);
 	printf("    SDRAM0_CFG   : 0x%08x\n", value);
-	mfsdram(mem_status, value);
+	mfsdram(SDRAM0_STATUS, value);
 	printf("    SDRAM0_STATUS: 0x%08x\n", value);
-	mfsdram(mem_mb0cf, value);
+	mfsdram(SDRAM0_B0CR, value);
 	printf("    SDRAM0_B0CR  : 0x%08x\n", value);
-	mfsdram(mem_mb1cf, value);
+	mfsdram(SDRAM0_B1CR, value);
 	printf("    SDRAM0_B1CR  : 0x%08x\n", value);
-	mfsdram(mem_sdtr1, value);
+	mfsdram(SDRAM0_TR, value);
 	printf("    SDRAM0_TR    : 0x%08x\n", value);
-	mfsdram(mem_rtr, value);
+	mfsdram(SDRAM0_RTR, value);
 	printf("    SDRAM0_RTR   : 0x%08x\n", value);
 }
 #endif
@@ -50,53 +50,53 @@ long int init_ppc405_sdram(unsigned int dram_size)
 	printf(__FUNCTION__);
 #endif
 	/* disable memory controller */
-	mtsdram(mem_mcopt1, 0x00000000);
+	mtsdram(SDRAM0_CFG, 0x00000000);
 
 	udelay (500);
 
 	/* Clear SDRAM0_BESR0 (Bus Error Syndrome Register) */
-	mtsdram(mem_besra, 0xffffffff);
+	mtsdram(SDRAM0_BESR0, 0xffffffff);
 
 	/* Clear SDRAM0_BESR1 (Bus Error Syndrome Register) */
-	mtsdram(mem_besrb, 0xffffffff);
+	mtsdram(SDRAM0_BESR1, 0xffffffff);
 
 	/* Clear SDRAM0_ECCCFG (disable ECC) */
-	mtsdram(mem_ecccf, 0x00000000);
+	mtsdram(SDRAM0_ECCCFG, 0x00000000);
 
 	/* Clear SDRAM0_ECCESR (ECC Error Syndrome Register) */
-	mtsdram(mem_eccerr, 0xffffffff);
+	mtsdram(SDRAM0_ECCESR, 0xffffffff);
 
 	/* Timing register: CASL=2, PTA=2, CTP=2, LDF=1, RFTA=5, RCD=2
 	 */
-	mtsdram(mem_sdtr1, 0x008a4015);
+	mtsdram(SDRAM0_TR, 0x008a4015);
 
 	/* Memory Bank 0 Config == BA=0x00000000, SZ=64M, AM=3, BE=1
 	 * and refresh timer
 	 */
 	switch (dram_size >> 20) {
 	case 32:
-		mtsdram(mem_mb0cf, 0x00062001);
-		mtsdram(mem_rtr,   0x07F00000);
+		mtsdram(SDRAM0_B0CR, 0x00062001);
+		mtsdram(SDRAM0_RTR,   0x07F00000);
 		break;
 	case 64:
-		mtsdram(mem_mb0cf, 0x00084001);
-		mtsdram(mem_rtr,   0x04100000);
+		mtsdram(SDRAM0_B0CR, 0x00084001);
+		mtsdram(SDRAM0_RTR,   0x04100000);
 		break;
 	case 128:
-		mtsdram(mem_mb0cf, 0x000A4001);
-		mtsdram(mem_rtr,   0x04100000);
+		mtsdram(SDRAM0_B0CR, 0x000A4001);
+		mtsdram(SDRAM0_RTR,   0x04100000);
 		break;
 	default:
 		printf("Invalid memory size of %d MB given\n", dram_size >> 20);
 	}
 
 	/* Power management idle timer set to the default. */
-	mtsdram(mem_pmit, 0x07c00000);
+	mtsdram(SDRAM0_PMIT, 0x07c00000);
 
 	udelay (500);
 
 	/* Enable banks (DCE=1, BPRF=1, ECCDD=1, EMDUL=1) TODO */
-	mtsdram(mem_mcopt1, 0x90800000);
+	mtsdram(SDRAM0_CFG, 0x90800000);
 
 #ifdef DEBUG
 	printf("%s: done\n", __FUNCTION__);
diff --git a/board/sandburst/common/sb_common.c b/board/sandburst/common/sb_common.c
index d8b0564b3b..e1c61463dd 100644
--- a/board/sandburst/common/sb_common.c
+++ b/board/sandburst/common/sb_common.c
@@ -266,11 +266,11 @@ long int fixed_sdram (void)
 	/*--------------------------------------------------------------------
 	 * Setup some default
 	 *------------------------------------------------------------------*/
-	mtsdram (mem_uabba, 0x00000000);	/* ubba=0 (default)		*/
-	mtsdram (mem_slio, 0x00000000);		/* rdre=0 wrre=0 rarw=0		*/
-	mtsdram (mem_devopt, 0x00000000);	/* dll=0 ds=0 (normal)		*/
-	mtsdram (mem_wddctr, 0x00000000);	/* wrcp=0 dcd=0			*/
-	mtsdram (mem_clktr, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0	*/
+	mtsdram (SDRAM0_UABBA, 0x00000000);	/* ubba=0 (default)		*/
+	mtsdram (SDRAM0_SLIO, 0x00000000);		/* rdre=0 wrre=0 rarw=0		*/
+	mtsdram (SDRAM0_DEVOPT, 0x00000000);	/* dll=0 ds=0 (normal)		*/
+	mtsdram (SDRAM0_WDDCTR, 0x00000000);	/* wrcp=0 dcd=0			*/
+	mtsdram (SDRAM0_CLKTR, 0x40000000);	/* clkp=1 (90 deg wr) dcdt=0	*/
 
 	/*--------------------------------------------------------------------
 	 * Setup for board-specific specific mem
@@ -278,20 +278,20 @@ long int fixed_sdram (void)
 	/*
 	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
 	 */
-	mtsdram (mem_b0cr, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */
-	mtsdram (mem_tr0, 0x410a4012);	/* WR=2	 WD=1 CL=2.5 PA=3 CP=4 LD=2 */
+	mtsdram (SDRAM0_B0CR, 0x000a4001); /* SDBA=0x000 128MB, Mode 3, enabled */
+	mtsdram (SDRAM0_TR0, 0x410a4012);	/* WR=2	 WD=1 CL=2.5 PA=3 CP=4 LD=2 */
 	/* RA=10 RD=3			    */
-	mtsdram (mem_tr1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
-	mtsdram (mem_rtr, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB	    */
-	mtsdram (mem_cfg1, 0x00000000); /* Self-refresh exit, disable PM    */
+	mtsdram (SDRAM0_TR1, 0x8080082f);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x02f   */
+	mtsdram (SDRAM0_RTR, 0x08200000);	/* Rate 15.625 ns @ 133 MHz PLB	    */
+	mtsdram (SDRAM0_CFG1, 0x00000000); /* Self-refresh exit, disable PM    */
 	udelay (400);			/* Delay 200 usecs (min)	    */
 
 	/*--------------------------------------------------------------------
 	 * Enable the controller, then wait for DCEN to complete
 	 *------------------------------------------------------------------*/
-	mtsdram (mem_cfg0, 0x86000000); /* DCEN=1, PMUD=1, 64-bit	    */
+	mtsdram (SDRAM0_CFG0, 0x86000000); /* DCEN=1, PMUD=1, 64-bit	    */
 	for (;;) {
-		mfsdram (mem_mcsts, reg);
+		mfsdram (SDRAM0_MCSTS, reg);
 		if (reg & 0x80000000)
 			break;
 	}
diff --git a/board/sc3/sc3.c b/board/sc3/sc3.c
index e7772c5ff6..63927f7298 100644
--- a/board/sc3/sc3.c
+++ b/board/sc3/sc3.c
@@ -577,7 +577,7 @@ static int printSDRAMConfig(char reg, unsigned long cr)
 }
 
 #ifdef SC3_DEBUGOUT
-static unsigned int mbcf[] = {mem_mb0cf, mem_mb1cf, mem_mb2cf, mem_mb3cf};
+static unsigned int mbcf[] = {SDRAM0_B0CR, SDRAM0_B1CR, SDRAM0_B2CR, SDRAM0_B3CR};
 #endif
 
 phys_size_t initdram (int board_type)
@@ -591,7 +591,7 @@ phys_size_t initdram (int board_type)
 
 	puts("\nSDRAM configuration:\n");
 
-	mtdcr (SDRAM0_CFGADDR, mem_mcopt1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
 	ul1 = mfdcr(SDRAM0_CFGDATA);
 
 	if (!(ul1 & 0x80000000)) {
@@ -604,7 +604,7 @@ phys_size_t initdram (int board_type)
 		mems += printSDRAMConfig (i, ul1);
 	}
 
-	mtdcr (SDRAM0_CFGADDR, mem_sdtr1);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
 	ul1 = mfdcr(SDRAM0_CFGDATA);
 
 	printf ("Timing:\n -CAS latency %lu\n", ((ul1 & 0x1800000) >> 23)+1);
@@ -614,14 +614,14 @@ phys_size_t initdram (int board_type)
 	printf (" -CAS to RAS %lu\n", ((ul1 & 0x1C) >> 2) + 4);
 	printf (" -RAS to CAS %lu\n", ((ul1 & 0x3) + 1));
 	puts ("Misc:\n");
-	mtdcr (SDRAM0_CFGADDR, mem_rtr);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
 	ul1 = mfdcr(SDRAM0_CFGDATA);
 	printf (" -Refresh rate: %luns\n", (ul1 >> 16) * 7);
 
-	mtdcr(SDRAM0_CFGADDR,mem_pmit);
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_PMIT);
 	ul2=mfdcr(SDRAM0_CFGDATA);
 
-	mtdcr(SDRAM0_CFGADDR,mem_mcopt1);
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_CFG);
 	ul1=mfdcr(SDRAM0_CFGDATA);
 
 	if (ul1 & 0x20000000)
@@ -658,7 +658,7 @@ phys_size_t initdram (int board_type)
 	else
 		puts(" -Memory lines only at write cycles active outputs\n");
 
-	mtdcr (SDRAM0_CFGADDR, mem_status);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_STATUS);
 	ul1 = mfdcr (SDRAM0_CFGDATA);
 	if (ul1 & 0x80000000)
 		puts(" -SDRAM Controller ready\n");
@@ -670,19 +670,19 @@ phys_size_t initdram (int board_type)
 
 	return (mems * 1024 * 1024);
 #else
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
 	ul1 = mfdcr (SDRAM0_CFGDATA);
 	mems = printSDRAMConfig (0, ul1);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);
 	ul1 = mfdcr (SDRAM0_CFGDATA);
 	mems += printSDRAMConfig (1, ul1);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);
 	ul1 = mfdcr(SDRAM0_CFGDATA);
 	mems += printSDRAMConfig (2, ul1);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);
 	ul1 = mfdcr(SDRAM0_CFGDATA);
 	mems += printSDRAMConfig (3, ul1);
 
diff --git a/board/w7o/init.S b/board/w7o/init.S
index 090b07a1e6..5477f986b9 100644
--- a/board/w7o/init.S
+++ b/board/w7o/init.S
@@ -182,7 +182,7 @@ sdram_init:
 	 * Disable memory controller to allow
 	 * values to be changed.
 	 */
-	addi    r3, 0, mem_mcopt1
+	addi    r3, 0, SDRAM0_CFG
 	mtdcr   SDRAM0_CFGADDR, r3
 	addis   r4, 0, 0x0
 	ori     r4, r4, 0x0
@@ -192,7 +192,7 @@ sdram_init:
 	 * Set MB0CF for ext bank 0. (0-4MB) Address Mode 5 since 11x8x2
 	 * All other banks are disabled.
 	 */
-	addi	r3, 0, mem_mb0cf
+	addi	r3, 0, SDRAM0_B0CR
 	mtdcr	SDRAM0_CFGADDR, r3
 	addis	r4, 0, 0x0000		/* BA=0x0, SZ=4MB */
 	ori	r4, r4, 0x8001		/* Mode is 5, 11x8x2or4, BE=Enabled */
@@ -222,7 +222,7 @@ sdram_init:
 	/*
 	 * Set up SDTR1
 	 */
-	addi    r3, 0, mem_sdtr1
+	addi    r3, 0, SDRAM0_TR
 	mtdcr   SDRAM0_CFGADDR, r3
 	addis   r4, 0, 0x0086		/* SDTR1 value for 100Mhz */
 	ori     r4, r4, 0x400D
@@ -231,7 +231,7 @@ sdram_init:
 	/*
 	 * Set RTR
 	 */
-	addi    r3, 0, mem_rtr
+	addi    r3, 0, SDRAM0_RTR
 	mtdcr   SDRAM0_CFGADDR, r3
 	addis   r4, 0, 0x05F0		/* RTR refresh val = 15.625ms@100Mhz */
 	mtdcr   SDRAM0_CFGDATA, r4
@@ -250,7 +250,7 @@ sdram_init:
 	/********************************************************************
 	 * Set memory controller options reg, MCOPT1.
 	 *******************************************************************/
-	addi    r3, 0, mem_mcopt1
+	addi    r3, 0, SDRAM0_CFG
 	mtdcr   SDRAM0_CFGADDR, r3
 	addis   r4, 0, 0x80E0		/* DC_EN=1,SRE=0,PME=0,MEMCHK=0 */
 	ori     r4, r4, 0x0000		/* REGEN=0,DRW=00,BRPF=01,ECCDD=1 */
diff --git a/board/w7o/w7o.c b/board/w7o/w7o.c
index 00a9f98b44..a818808ba0 100644
--- a/board/w7o/w7o.c
+++ b/board/w7o/w7o.c
@@ -170,16 +170,16 @@ unsigned long get_dram_size (void)
 	int size = 0;
 
 	/* Get bank Size registers */
-	mtdcr (SDRAM0_CFGADDR, mem_mb0cf);	/* get bank 0 config reg */
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);	/* get bank 0 config reg */
 	regs[0] = mfdcr (SDRAM0_CFGDATA);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb1cf);	/* get bank 1 config reg */
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B1CR);	/* get bank 1 config reg */
 	regs[1] = mfdcr (SDRAM0_CFGDATA);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb2cf);	/* get bank 2 config reg */
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B2CR);	/* get bank 2 config reg */
 	regs[2] = mfdcr (SDRAM0_CFGDATA);
 
-	mtdcr (SDRAM0_CFGADDR, mem_mb3cf);	/* get bank 3 config reg */
+	mtdcr (SDRAM0_CFGADDR, SDRAM0_B3CR);	/* get bank 3 config reg */
 	regs[3] = mfdcr (SDRAM0_CFGDATA);
 
 	/* compute the size, add each bank if enabled */
diff --git a/common/cmd_reginfo.c b/common/cmd_reginfo.c
index 5e29ff3bcd..d0ebd0fd60 100644
--- a/common/cmd_reginfo.c
+++ b/common/cmd_reginfo.c
@@ -108,24 +108,24 @@ int do_reginfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	puts ("\nMemory (SDRAM) Configuration\n"
 	    "besra    besrsa   besrb    besrsb   bear     mcopt1   rtr      pmit\n");
 
-	mtdcr(SDRAM0_CFGADDR,mem_besra);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_besrsa);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_besrb);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_besrsb);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_bear);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_mcopt1);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_rtr);		printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_pmit);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_BESR0);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_BESRS0);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_BESR1);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_BESRS1);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_BEAR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_CFG);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_RTR);		printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_PMIT);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
 
 	puts ("\n"
 	    "mb0cf    mb1cf    mb2cf    mb3cf    sdtr1    ecccf    eccerr\n");
-	mtdcr(SDRAM0_CFGADDR,mem_mb0cf);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_mb1cf);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_mb2cf);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_mb3cf);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_sdtr1);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_ecccf);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_eccerr);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_B0CR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_B1CR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_B2CR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_B3CR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_TR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_ECCCFG);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_ECCESR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
 
 	printf ("\n\n"
 	    "DMA Channels\n"
@@ -195,12 +195,12 @@ int do_reginfo (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	puts ("\nMemory (SDRAM) Configuration\n"
 	    "mcopt1   rtr      pmit     mb0cf    mb1cf    sdtr1\n");
 
-	mtdcr(SDRAM0_CFGADDR,mem_mcopt1);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_rtr);		printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_pmit);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_mb0cf);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_mb1cf);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
-	mtdcr(SDRAM0_CFGADDR,mem_sdtr1);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_CFG);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_RTR);		printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_PMIT);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_B0CR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_B1CR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
+	mtdcr(SDRAM0_CFGADDR,SDRAM0_TR);	printf ("%08x ", mfdcr(SDRAM0_CFGDATA));
 
 	printf ("\n\n"
 	    "DMA Channels\n"
diff --git a/cpu/ppc4xx/40x_spd_sdram.c b/cpu/ppc4xx/40x_spd_sdram.c
index 83fa709da2..c50f673080 100644
--- a/cpu/ppc4xx/40x_spd_sdram.c
+++ b/cpu/ppc4xx/40x_spd_sdram.c
@@ -424,30 +424,30 @@ long int spd_sdram(int(read_spd)(uint addr))
 
 #define mtsdram0(reg, data)  mtdcr(SDRAM0_CFGADDR,reg);mtdcr(SDRAM0_CFGDATA,data)
 	/* disable memcontroller so updates work */
-	mtsdram0( mem_mcopt1, 0 );
+	mtsdram0( SDRAM0_CFG, 0 );
 
 #ifndef CONFIG_405EP /* not on PPC405EP */
-	mtsdram0( mem_besra , sdram0_besr0 );
-	mtsdram0( mem_besrb , sdram0_besr1 );
-	mtsdram0( mem_ecccf , sdram0_ecccfg );
-	mtsdram0( mem_eccerr, sdram0_eccesr );
+	mtsdram0( SDRAM0_BESR0 , sdram0_besr0 );
+	mtsdram0( SDRAM0_BESR1 , sdram0_besr1 );
+	mtsdram0( SDRAM0_ECCCFG , sdram0_ecccfg );
+	mtsdram0( SDRAM0_ECCESR, sdram0_eccesr );
 #endif
-	mtsdram0( mem_rtr   , sdram0_rtr );
-	mtsdram0( mem_pmit  , sdram0_pmit );
-	mtsdram0( mem_mb0cf , sdram0_b0cr );
-	mtsdram0( mem_mb1cf , sdram0_b1cr );
+	mtsdram0( SDRAM0_RTR   , sdram0_rtr );
+	mtsdram0( SDRAM0_PMIT  , sdram0_pmit );
+	mtsdram0( SDRAM0_B0CR , sdram0_b0cr );
+	mtsdram0( SDRAM0_B1CR , sdram0_b1cr );
 #ifndef CONFIG_405EP /* not on PPC405EP */
-	mtsdram0( mem_mb2cf , sdram0_b2cr );
-	mtsdram0( mem_mb3cf , sdram0_b3cr );
+	mtsdram0( SDRAM0_B2CR , sdram0_b2cr );
+	mtsdram0( SDRAM0_B3CR , sdram0_b3cr );
 #endif
-	mtsdram0( mem_sdtr1 , sdram0_tr );
+	mtsdram0( SDRAM0_TR , sdram0_tr );
 
 	/* SDRAM have a power on delay,	 500 micro should do */
 	udelay(500);
 	sdram0_cfg = SDRAM0_CFG_DCE | SDRAM0_CFG_BRPF(1) | SDRAM0_CFG_ECCDD | SDRAM0_CFG_EMDULR;
 	if (ecc_on)
 		sdram0_cfg |= SDRAM0_CFG_MEMCHK;
-	mtsdram0(mem_mcopt1, sdram0_cfg);
+	mtsdram0(SDRAM0_CFG, sdram0_cfg);
 
 	return (total_size);
 }
diff --git a/cpu/ppc4xx/44x_spd_ddr.c b/cpu/ppc4xx/44x_spd_ddr.c
index c93f23a679..6176eabfbf 100644
--- a/cpu/ppc4xx/44x_spd_ddr.c
+++ b/cpu/ppc4xx/44x_spd_ddr.c
@@ -230,7 +230,7 @@ long int spd_sdram(void) {
 	/*
 	 * program SDRAM Clock Timing Register (SDRAM0_CLKTR)
 	 */
-	mtsdram(mem_clktr, 0x40000000);
+	mtsdram(SDRAM0_CLKTR, 0x40000000);
 
 	/*
 	 * delay to ensure 200 usec has elapsed
@@ -240,14 +240,14 @@ long int spd_sdram(void) {
 	/*
 	 * enable the memory controller
 	 */
-	mfsdram(mem_cfg0, cfg0);
-	mtsdram(mem_cfg0, cfg0 | SDRAM_CFG0_DCEN);
+	mfsdram(SDRAM0_CFG0, cfg0);
+	mtsdram(SDRAM0_CFG0, cfg0 | SDRAM_CFG0_DCEN);
 
 	/*
 	 * wait for SDRAM_CFG0_DC_EN to complete
 	 */
 	while (1) {
-		mfsdram(mem_mcsts, mcsts);
+		mfsdram(SDRAM0_MCSTS, mcsts);
 		if ((mcsts & SDRAM_MCSTS_MRSC) != 0)
 			break;
 	}
@@ -386,7 +386,7 @@ static void program_cfg0(unsigned long *dimm_populated,
 	/*
 	 * get Memory Controller Options 0 data
 	 */
-	mfsdram(mem_cfg0, cfg0);
+	mfsdram(SDRAM0_CFG0, cfg0);
 
 	/*
 	 * clear bits
@@ -457,7 +457,7 @@ static void program_cfg0(unsigned long *dimm_populated,
 	 * Note: DCEN must be enabled after all DDR SDRAM controller
 	 * configuration registers get initialized.
 	 */
-	mtsdram(mem_cfg0, cfg0);
+	mtsdram(SDRAM0_CFG0, cfg0);
 }
 
 static void program_cfg1(unsigned long *dimm_populated,
@@ -465,7 +465,7 @@ static void program_cfg1(unsigned long *dimm_populated,
 			 unsigned long num_dimm_banks)
 {
 	unsigned long cfg1;
-	mfsdram(mem_cfg1, cfg1);
+	mfsdram(SDRAM0_CFG1, cfg1);
 
 	/*
 	 * Self-refresh exit, disable PM
@@ -475,7 +475,7 @@ static void program_cfg1(unsigned long *dimm_populated,
 	/*
 	 * program Memory Controller Options 1
 	 */
-	mtsdram(mem_cfg1, cfg1);
+	mtsdram(SDRAM0_CFG1, cfg1);
 }
 
 static void program_rtr(unsigned long *dimm_populated,
@@ -535,7 +535,7 @@ static void program_rtr(unsigned long *dimm_populated,
 	/*
 	 * program Refresh Timer Register (SDRAM0_RTR)
 	 */
-	mtsdram(mem_rtr, sdram_rtr);
+	mtsdram(SDRAM0_RTR, sdram_rtr);
 }
 
 static void program_tr0(unsigned long *dimm_populated,
@@ -576,7 +576,7 @@ static void program_tr0(unsigned long *dimm_populated,
 	/*
 	 * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits
 	 */
-	mfsdram(mem_tr0, tr0);
+	mfsdram(SDRAM0_TR0, tr0);
 	tr0 &= ~(SDRAM_TR0_SDWR_MASK | SDRAM_TR0_SDWD_MASK |
 		 SDRAM_TR0_SDCL_MASK | SDRAM_TR0_SDPA_MASK |
 		 SDRAM_TR0_SDCP_MASK | SDRAM_TR0_SDLD_MASK |
@@ -821,7 +821,7 @@ static void program_tr0(unsigned long *dimm_populated,
 	}
 
 	debug("tr0: %x\n", tr0);
-	mtsdram(mem_tr0, tr0);
+	mtsdram(SDRAM0_TR0, tr0);
 }
 
 static int short_mem_test(void)
@@ -848,7 +848,7 @@ static int short_mem_test(void)
 		 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55}};
 
 	for (bxcr_num = 0; bxcr_num < MAXBXCR; bxcr_num++) {
-		mtdcr(SDRAM0_CFGADDR, mem_b0cr + (bxcr_num << 2));
+		mtdcr(SDRAM0_CFGADDR, SDRAM0_B0CR + (bxcr_num << 2));
 		if ((mfdcr(SDRAM0_CFGDATA) & SDRAM_BXCR_SDBE) == SDRAM_BXCR_SDBE) {
 			/* Bank is enabled */
 			membase = (unsigned long*)
@@ -918,11 +918,11 @@ static void program_tr1(void)
 	/*
 	 * get SDRAM Timing Register 0 (SDRAM_TR0) and clear bits
 	 */
-	mfsdram(mem_tr1, tr1);
+	mfsdram(SDRAM0_TR1, tr1);
 	tr1 &= ~(SDRAM_TR1_RDSS_MASK | SDRAM_TR1_RDSL_MASK |
 		 SDRAM_TR1_RDCD_MASK | SDRAM_TR1_RDCT_MASK);
 
-	mfsdram(mem_tr0, tr0);
+	mfsdram(SDRAM0_TR0, tr0);
 	if (((tr0 & SDRAM_TR0_SDCL_MASK) == SDRAM_TR0_SDCL_2_5_CLK) &&
 	    (sys_info.freqPLB > 100000000)) {
 		tr1 |= SDRAM_TR1_RDSS_TR2;
@@ -937,14 +937,14 @@ static void program_tr1(void)
 	/*
 	 * save CFG0 ECC setting to a temporary variable and turn ECC off
 	 */
-	mfsdram(mem_cfg0, cfg0);
+	mfsdram(SDRAM0_CFG0, cfg0);
 	ecc_temp = cfg0 & SDRAM_CFG0_MCHK_MASK;
-	mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | SDRAM_CFG0_MCHK_NON);
+	mtsdram(SDRAM0_CFG0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | SDRAM_CFG0_MCHK_NON);
 
 	/*
 	 * get the delay line calibration register value
 	 */
-	mfsdram(mem_dlycal, dlycal);
+	mfsdram(SDRAM0_DLYCAL, dlycal);
 	dly_val = SDRAM_DLYCAL_DLCV_DECODE(dlycal) << 2;
 
 	max_pass_length = 0;
@@ -964,7 +964,7 @@ static void program_tr1(void)
 			/*
 			 * Set the timing reg for the test.
 			 */
-			mtsdram(mem_tr1, (tr1 | SDRAM_TR1_RDCT_ENCODE(rdclt)));
+			mtsdram(SDRAM0_TR1, (tr1 | SDRAM_TR1_RDCT_ENCODE(rdclt)));
 
 			if (short_mem_test()) {
 				if (fail_found == TRUE) {
@@ -1018,7 +1018,7 @@ static void program_tr1(void)
 	/*
 	 * restore the orignal ECC setting
 	 */
-	mtsdram(mem_cfg0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | ecc_temp);
+	mtsdram(SDRAM0_CFG0, (cfg0 & ~SDRAM_CFG0_MCHK_MASK) | ecc_temp);
 
 	/*
 	 * set the SDRAM TR1 RDCD value
@@ -1056,7 +1056,7 @@ static void program_tr1(void)
 	/*
 	 * program SDRAM Timing Register 1 TR1
 	 */
-	mtsdram(mem_tr1, tr1);
+	mtsdram(SDRAM0_TR1, tr1);
 }
 
 static unsigned long program_bxcr(unsigned long *dimm_populated,
@@ -1086,7 +1086,7 @@ static unsigned long program_bxcr(unsigned long *dimm_populated,
 	 * Set the BxCR regs.  First, wipe out the bank config registers.
 	 */
 	for (bx_cr_num = 0; bx_cr_num < MAXBXCR; bx_cr_num++) {
-		mtdcr(SDRAM0_CFGADDR, mem_b0cr + (bx_cr_num << 2));
+		mtdcr(SDRAM0_CFGADDR, SDRAM0_B0CR + (bx_cr_num << 2));
 		mtdcr(SDRAM0_CFGDATA, 0x00000000);
 		bank_parms[bx_cr_num].bank_size_bytes = 0;
 	}
@@ -1232,7 +1232,7 @@ static unsigned long program_bxcr(unsigned long *dimm_populated,
 	/* Set the SDRAM0_BxCR regs thanks to sort tables */
 	for (bx_cr_num = 0, bank_base_addr = 0; bx_cr_num < MAXBXCR; bx_cr_num++) {
 		if (bank_parms[sorted_bank_num[bx_cr_num]].bank_size_bytes) {
-			mtdcr(SDRAM0_CFGADDR, mem_b0cr + (sorted_bank_num[bx_cr_num] << 2));
+			mtdcr(SDRAM0_CFGADDR, SDRAM0_B0CR + (sorted_bank_num[bx_cr_num] << 2));
 			temp = mfdcr(SDRAM0_CFGDATA) & ~(SDRAM_BXCR_SDBA_MASK | SDRAM_BXCR_SDSZ_MASK |
 						  SDRAM_BXCR_SDAM_MASK | SDRAM_BXCR_SDBE);
 			temp = temp | (bank_base_addr & SDRAM_BXCR_SDBA_MASK) |
diff --git a/cpu/ppc4xx/sdram.c b/cpu/ppc4xx/sdram.c
index 5a3336e3c8..30c6e0e38e 100644
--- a/cpu/ppc4xx/sdram.c
+++ b/cpu/ppc4xx/sdram.c
@@ -188,14 +188,14 @@ phys_size_t initdram(int board_type)
 		/*
 		 * Disable memory controller.
 		 */
-		mtsdram(mem_mcopt1, 0x00000000);
+		mtsdram(SDRAM0_CFG, 0x00000000);
 
 		/*
 		 * Set MB0CF for bank 0.
 		 */
-		mtsdram(mem_mb0cf, mb0cf[i].reg);
-		mtsdram(mem_sdtr1, sdtr1);
-		mtsdram(mem_rtr, compute_rtr(speed, mb0cf[i].rows, 64));
+		mtsdram(SDRAM0_B0CR, mb0cf[i].reg);
+		mtsdram(SDRAM0_TR, sdtr1);
+		mtsdram(SDRAM0_RTR, compute_rtr(speed, mb0cf[i].rows, 64));
 
 		udelay(200);
 
@@ -204,7 +204,7 @@ phys_size_t initdram(int board_type)
 		 * Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst
 		 * read/prefetch.
 		 */
-		mtsdram(mem_mcopt1, 0x80800000);
+		mtsdram(SDRAM0_CFG, 0x80800000);
 
 		udelay(10000);
 
@@ -216,9 +216,9 @@ phys_size_t initdram(int board_type)
 			 * defined (assumes same type as bank 0)
 			 */
 #ifdef CONFIG_SDRAM_BANK1
-			mtsdram(mem_mcopt1, 0x00000000);
-			mtsdram(mem_mb1cf, mb0cf[i].size | mb0cf[i].reg);
-			mtsdram(mem_mcopt1, 0x80800000);
+			mtsdram(SDRAM0_CFG, 0x00000000);
+			mtsdram(SDRAM0_B1CR, mb0cf[i].size | mb0cf[i].reg);
+			mtsdram(SDRAM0_CFG, 0x80800000);
 			udelay(10000);
 
 			/*
@@ -228,8 +228,8 @@ phys_size_t initdram(int board_type)
 			 */
 			if (get_ram_size((long *)mb0cf[i].size, mb0cf[i].size) !=
 			    mb0cf[i].size) {
-				mtsdram(mem_mb1cf, 0);
-				mtsdram(mem_mcopt1, 0);
+				mtsdram(SDRAM0_B1CR, 0);
+				mtsdram(SDRAM0_CFG, 0);
 			} else {
 				/*
 				 * We have two identical banks, so the size
@@ -315,7 +315,7 @@ static void sdram_tr1_set(int ram_address, int* tr1_value)
 	/* go through all possible SDRAM0_TR1[RDCT] values */
 	for (i=0; i<=0x1ff; i++) {
 		/* set the current value for TR1 */
-		mtsdram(mem_tr1, (0x80800800 | i));
+		mtsdram(SDRAM0_TR1, (0x80800800 | i));
 
 		/* write values */
 		for (j=0; j<NUM_TRIES; j++) {
@@ -383,31 +383,31 @@ phys_size_t initdram(int board_type)
 		/*
 		 * Disable memory controller.
 		 */
-		mtsdram(mem_cfg0, 0x00000000);
+		mtsdram(SDRAM0_CFG0, 0x00000000);
 
 		/*
 		 * Setup some default
 		 */
-		mtsdram(mem_uabba, 0x00000000); /* ubba=0 (default)		*/
-		mtsdram(mem_slio, 0x00000000);	/* rdre=0 wrre=0 rarw=0		*/
-		mtsdram(mem_devopt, 0x00000000); /* dll=0 ds=0 (normal)		*/
-		mtsdram(mem_wddctr, CONFIG_SYS_SDRAM0_WDDCTR);
-		mtsdram(mem_clktr, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0	*/
+		mtsdram(SDRAM0_UABBA, 0x00000000); /* ubba=0 (default)		*/
+		mtsdram(SDRAM0_SLIO, 0x00000000);	/* rdre=0 wrre=0 rarw=0		*/
+		mtsdram(SDRAM0_DEVOPT, 0x00000000); /* dll=0 ds=0 (normal)		*/
+		mtsdram(SDRAM0_WDDCTR, CONFIG_SYS_SDRAM0_WDDCTR);
+		mtsdram(SDRAM0_CLKTR, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0	*/
 
 		/*
 		 * Following for CAS Latency = 2.5 @ 133 MHz PLB
 		 */
-		mtsdram(mem_b0cr, mb0cf[i].reg);
-		mtsdram(mem_tr0, CONFIG_SYS_SDRAM0_TR0);
-		mtsdram(mem_tr1, 0x80800800);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/
-		mtsdram(mem_rtr, CONFIG_SYS_SDRAM0_RTR);
-		mtsdram(mem_cfg1, 0x00000000);	/* Self-refresh exit, disable PM*/
+		mtsdram(SDRAM0_B0CR, mb0cf[i].reg);
+		mtsdram(SDRAM0_TR0, CONFIG_SYS_SDRAM0_TR0);
+		mtsdram(SDRAM0_TR1, 0x80800800);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/
+		mtsdram(SDRAM0_RTR, CONFIG_SYS_SDRAM0_RTR);
+		mtsdram(SDRAM0_CFG1, 0x00000000);	/* Self-refresh exit, disable PM*/
 		udelay(400);			/* Delay 200 usecs (min)	*/
 
 		/*
 		 * Enable the controller, then wait for DCEN to complete
 		 */
-		mtsdram(mem_cfg0, CONFIG_SYS_SDRAM0_CFG0);
+		mtsdram(SDRAM0_CFG0, CONFIG_SYS_SDRAM0_CFG0);
 		udelay(10000);
 
 		if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) {
@@ -416,7 +416,7 @@ phys_size_t initdram(int board_type)
 			 * Optimize TR1 to current hardware environment
 			 */
 			sdram_tr1_set(0x00000000, &tr1_bank1);
-			mtsdram(mem_tr1, (tr1_bank1 | 0x80800800));
+			mtsdram(SDRAM0_TR1, (tr1_bank1 | 0x80800800));
 
 
 			/*
@@ -424,9 +424,9 @@ phys_size_t initdram(int board_type)
 			 * defined (assumes same type as bank 0)
 			 */
 #ifdef CONFIG_SDRAM_BANK1
-			mtsdram(mem_cfg0, 0);
-			mtsdram(mem_b1cr, mb0cf[i].size | mb0cf[i].reg);
-			mtsdram(mem_cfg0, CONFIG_SYS_SDRAM0_CFG0);
+			mtsdram(SDRAM0_CFG0, 0);
+			mtsdram(SDRAM0_B1CR, mb0cf[i].size | mb0cf[i].reg);
+			mtsdram(SDRAM0_CFG0, CONFIG_SYS_SDRAM0_CFG0);
 			udelay(10000);
 
 			/*
@@ -436,9 +436,9 @@ phys_size_t initdram(int board_type)
 			 */
 			if (get_ram_size((long *)mb0cf[i].size, mb0cf[i].size)
 			    != mb0cf[i].size) {
-				mtsdram(mem_cfg0, 0);
-				mtsdram(mem_b1cr, 0);
-				mtsdram(mem_cfg0, CONFIG_SYS_SDRAM0_CFG0);
+				mtsdram(SDRAM0_CFG0, 0);
+				mtsdram(SDRAM0_B1CR, 0);
+				mtsdram(SDRAM0_CFG0, CONFIG_SYS_SDRAM0_CFG0);
 				udelay(10000);
 			} else {
 				/*
diff --git a/include/asm-ppc/ppc4xx-sdram.h b/include/asm-ppc/ppc4xx-sdram.h
index 992a3d2210..b6182d4f21 100644
--- a/include/asm-ppc/ppc4xx-sdram.h
+++ b/include/asm-ppc/ppc4xx-sdram.h
@@ -30,32 +30,27 @@
  * SDRAM Controller
  */
 
-/*
- * XXX - ToDo: Revisit file to change all these lower case defines into
- * upper case. Also needs to be done in the controller setup code too
- * of course. sr, 2008-06-02
- */
 #ifndef CONFIG_405EP
-#define mem_besra	0x00	/* bus error syndrome reg a		*/
-#define mem_besrsa	0x04	/* bus error syndrome reg set a		*/
-#define mem_besrb	0x08	/* bus error syndrome reg b		*/
-#define mem_besrsb	0x0c	/* bus error syndrome reg set b		*/
-#define mem_bear	0x10	/* bus error address reg		*/
+#define SDRAM0_BESR0	0x00	/* bus error syndrome reg a		*/
+#define SDRAM0_BESRS0	0x04	/* bus error syndrome reg set a		*/
+#define SDRAM0_BESR1	0x08	/* bus error syndrome reg b		*/
+#define SDRAM0_BESRS1	0x0c	/* bus error syndrome reg set b		*/
+#define SDRAM0_BEAR	0x10	/* bus error address reg		*/
 #endif
-#define mem_mcopt1	0x20	/* memory controller options 1		*/
-#define mem_status	0x24	/* memory status			*/
-#define mem_rtr		0x30	/* refresh timer reg			*/
-#define mem_pmit	0x34	/* power management idle timer		*/
-#define mem_mb0cf	0x40	/* memory bank 0 configuration		*/
-#define mem_mb1cf	0x44	/* memory bank 1 configuration		*/
+#define SDRAM0_CFG	0x20	/* memory controller options 1		*/
+#define SDRAM0_STATUS	0x24	/* memory status			*/
+#define SDRAM0_RTR	0x30	/* refresh timer reg			*/
+#define SDRAM0_PMIT	0x34	/* power management idle timer		*/
+#define SDRAM0_B0CR	0x40	/* memory bank 0 configuration		*/
+#define SDRAM0_B1CR	0x44	/* memory bank 1 configuration		*/
 #ifndef CONFIG_405EP
-#define mem_mb2cf	0x48	/* memory bank 2 configuration		*/
-#define mem_mb3cf	0x4c	/* memory bank 3 configuration		*/
+#define SDRAM0_B2CR	0x48	/* memory bank 2 configuration		*/
+#define SDRAM0_B3CR	0x4c	/* memory bank 3 configuration		*/
 #endif
-#define mem_sdtr1	0x80	/* timing reg 1				*/
+#define SDRAM0_TR	0x80	/* timing reg 1				*/
 #ifndef CONFIG_405EP
-#define mem_ecccf	0x94	/* ECC configuration			*/
-#define mem_eccerr	0x98	/* ECC error status			*/
+#define SDRAM0_ECCCFG	0x94	/* ECC configuration			*/
+#define SDRAM0_ECCESR	0x98	/* ECC error status			*/
 #endif
 
 #endif /* CONFIG_SDRAM_PPC4xx_IBM_SDRAM */
@@ -68,36 +63,25 @@
 #define SDRAM_CFG0	0x20	/* memory controller options 0		*/
 #define SDRAM_CFG1	0x21	/* memory controller options 1		*/
 
-/*
- * XXX - ToDo: Revisit file to change all these lower case defines into
- * upper case. Also needs to be done in the controller setup code too
- * of course. sr, 2008-06-02
- */
-#define mem_besr0_clr	0x0000	/* bus error status reg 0 (clr)		*/
-#define mem_besr0_set	0x0004	/* bus error status reg 0 (set)		*/
-#define mem_besr1_clr	0x0008	/* bus error status reg 1 (clr)		*/
-#define mem_besr1_set	0x000c	/* bus error status reg 1 (set)		*/
-#define mem_bear	0x0010	/* bus error address reg		*/
-#define mem_mirq_clr	0x0011	/* bus master interrupt (clr)		*/
-#define mem_mirq_set	0x0012	/* bus master interrupt (set)		*/
-#define mem_slio	0x0018	/* ddr sdram slave interface options	*/
-#define mem_cfg0	0x0020	/* ddr sdram options 0			*/
-#define mem_cfg1	0x0021	/* ddr sdram options 1			*/
-#define mem_devopt	0x0022	/* ddr sdram device options		*/
-#define mem_mcsts	0x0024	/* memory controller status		*/
-#define mem_rtr		0x0030	/* refresh timer register		*/
-#define mem_pmit	0x0034	/* power management idle timer		*/
-#define mem_uabba	0x0038	/* plb UABus base address		*/
-#define mem_b0cr	0x0040	/* ddr sdram bank 0 configuration	*/
-#define mem_b1cr	0x0044	/* ddr sdram bank 1 configuration	*/
-#define mem_b2cr	0x0048	/* ddr sdram bank 2 configuration	*/
-#define mem_b3cr	0x004c	/* ddr sdram bank 3 configuration	*/
-#define mem_tr0		0x0080	/* sdram timing register 0		*/
-#define mem_tr1		0x0081	/* sdram timing register 1		*/
-#define mem_clktr	0x0082	/* ddr clock timing register		*/
-#define mem_wddctr	0x0083	/* write data/dm/dqs clock timing reg	*/
-#define mem_dlycal	0x0084	/* delay line calibration register	*/
-#define mem_eccesr	0x0098	/* ECC error status			*/
+#define SDRAM0_BEAR	0x0010	/* bus error address reg		*/
+#define SDRAM0_SLIO	0x0018	/* ddr sdram slave interface options	*/
+#define SDRAM0_CFG0	0x0020	/* ddr sdram options 0			*/
+#define SDRAM0_CFG1	0x0021	/* ddr sdram options 1			*/
+#define SDRAM0_DEVOPT	0x0022	/* ddr sdram device options		*/
+#define SDRAM0_MCSTS	0x0024	/* memory controller status		*/
+#define SDRAM0_RTR	0x0030	/* refresh timer register		*/
+#define SDRAM0_PMIT	0x0034	/* power management idle timer		*/
+#define SDRAM0_UABBA	0x0038	/* plb UABus base address		*/
+#define SDRAM0_B0CR	0x0040	/* ddr sdram bank 0 configuration	*/
+#define SDRAM0_B1CR	0x0044	/* ddr sdram bank 1 configuration	*/
+#define SDRAM0_B2CR	0x0048	/* ddr sdram bank 2 configuration	*/
+#define SDRAM0_B3CR	0x004c	/* ddr sdram bank 3 configuration	*/
+#define SDRAM0_TR0	0x0080	/* sdram timing register 0		*/
+#define SDRAM0_TR1	0x0081	/* sdram timing register 1		*/
+#define SDRAM0_CLKTR	0x0082	/* ddr clock timing register		*/
+#define SDRAM0_WDDCTR	0x0083	/* write data/dm/dqs clock timing reg	*/
+#define SDRAM0_DLYCAL	0x0084	/* delay line calibration register	*/
+#define SDRAM0_ECCESR	0x0098	/* ECC error status			*/
 
 /*
  * Memory Controller Options 0
diff --git a/nand_spl/board/amcc/bamboo/sdram.c b/nand_spl/board/amcc/bamboo/sdram.c
index df03afe0a4..9fec5cad34 100644
--- a/nand_spl/board/amcc/bamboo/sdram.c
+++ b/nand_spl/board/amcc/bamboo/sdram.c
@@ -31,7 +31,7 @@ static void wait_init_complete(void)
 	u32 val;
 
 	do {
-		mfsdram(mem_mcsts, val);
+		mfsdram(SDRAM0_MCSTS, val);
 	} while (!(val & 0x80000000));
 }
 
@@ -62,30 +62,30 @@ phys_size_t initdram(int board_type)
 	/*
 	 * Disable memory controller.
 	 */
-	mtsdram(mem_cfg0, 0x00000000);
+	mtsdram(SDRAM0_CFG0, 0x00000000);
 
 	/*
 	 * Setup some default
 	 */
-	mtsdram(mem_uabba, 0x00000000); /* ubba=0 (default)		*/
-	mtsdram(mem_slio, 0x00000000);	/* rdre=0 wrre=0 rarw=0		*/
-	mtsdram(mem_devopt, 0x00000000); /* dll=0 ds=0 (normal)		*/
-	mtsdram(mem_wddctr, 0x00000000); /* wrcp=0 dcd=0		*/
-	mtsdram(mem_clktr, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0	*/
+	mtsdram(SDRAM0_UABBA, 0x00000000); /* ubba=0 (default)		*/
+	mtsdram(SDRAM0_SLIO, 0x00000000);	/* rdre=0 wrre=0 rarw=0		*/
+	mtsdram(SDRAM0_DEVOPT, 0x00000000); /* dll=0 ds=0 (normal)		*/
+	mtsdram(SDRAM0_WDDCTR, 0x00000000); /* wrcp=0 dcd=0		*/
+	mtsdram(SDRAM0_CLKTR, 0x40000000); /* clkp=1 (90 deg wr) dcdt=0	*/
 
 	/*
 	 * Following for CAS Latency = 2.5 @ 133 MHz PLB
 	 */
-	mtsdram(mem_b0cr, 0x00082001);
-	mtsdram(mem_tr0, 0x41094012);
-	mtsdram(mem_tr1, 0x8080083d);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/
-	mtsdram(mem_rtr, 0x04100000);	/* Interval 7.8µs @ 133MHz PLB	*/
-	mtsdram(mem_cfg1, 0x00000000);	/* Self-refresh exit, disable PM*/
+	mtsdram(SDRAM0_B0CR, 0x00082001);
+	mtsdram(SDRAM0_TR0, 0x41094012);
+	mtsdram(SDRAM0_TR1, 0x8080083d);	/* SS=T2 SL=STAGE 3 CD=1 CT=0x00*/
+	mtsdram(SDRAM0_RTR, 0x04100000);	/* Interval 7.8µs @ 133MHz PLB	*/
+	mtsdram(SDRAM0_CFG1, 0x00000000);	/* Self-refresh exit, disable PM*/
 
 	/*
 	 * Enable the controller, then wait for DCEN to complete
 	 */
-	mtsdram(mem_cfg0, 0x80000000); /* DCEN=1, PMUD=0*/
+	mtsdram(SDRAM0_CFG0, 0x80000000); /* DCEN=1, PMUD=0*/
 	wait_init_complete();
 
 	return CONFIG_SYS_MBYTES_SDRAM << 20;