diff --git a/board/Marvell/db64360/pci.c b/board/Marvell/db64360/pci.c
index a7e3c95b8..499809514 100644
--- a/board/Marvell/db64360/pci.c
+++ b/board/Marvell/db64360/pci.c
@@ -52,13 +52,13 @@ static void gt_pci_bus_mode_display (PCI_HOST host)
 		printf ("PCI %d bus mode: Conventional PCI\n", host);
 		break;
 	case 1:
-		printf ("PCI %d bus mode: 66 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 66 MHz PCIX\n", host);
 		break;
 	case 2:
-		printf ("PCI %d bus mode: 100 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 100 MHz PCIX\n", host);
 		break;
 	case 3:
-		printf ("PCI %d bus mode: 133 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 133 MHz PCIX\n", host);
 		break;
 	default:
 		printf ("Unknown BUS %d\n", mode);
diff --git a/board/Marvell/db64460/pci.c b/board/Marvell/db64460/pci.c
index a7e3c95b8..499809514 100644
--- a/board/Marvell/db64460/pci.c
+++ b/board/Marvell/db64460/pci.c
@@ -52,13 +52,13 @@ static void gt_pci_bus_mode_display (PCI_HOST host)
 		printf ("PCI %d bus mode: Conventional PCI\n", host);
 		break;
 	case 1:
-		printf ("PCI %d bus mode: 66 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 66 MHz PCIX\n", host);
 		break;
 	case 2:
-		printf ("PCI %d bus mode: 100 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 100 MHz PCIX\n", host);
 		break;
 	case 3:
-		printf ("PCI %d bus mode: 133 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 133 MHz PCIX\n", host);
 		break;
 	default:
 		printf ("Unknown BUS %d\n", mode);
diff --git a/board/amcc/katmai/cmd_katmai.c b/board/amcc/katmai/cmd_katmai.c
index 703d22560..ba71bd55c 100644
--- a/board/amcc/katmai/cmd_katmai.c
+++ b/board/amcc/katmai/cmd_katmai.c
@@ -57,9 +57,9 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 	do {
 #ifdef	CONFIG_STRESS
-		printf("enter cpu clock frequency 400, 500, 533, 667 Mhz or quit to abort\n");
+		printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n");
 #else
-		printf("enter cpu clock frequency 400, 500, 533 Mhz or quit to abort\n");
+		printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n");
 #endif
 		nbytes = readline (" ? ");
 
@@ -87,11 +87,11 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	else {
 		do {
 			if (strcmp(cpuClock, "400") == 0)
-				printf("enter plb clock frequency 100, 133 Mhz or quit to abort\n");
+				printf("enter plb clock frequency 100, 133 MHz or quit to abort\n");
 
 #ifdef	CONFIG_STRESS
 			if (strcmp(cpuClock, "667") == 0)
-				printf("enter plb clock frequency 133, 166 Mhz or quit to abort\n");
+				printf("enter plb clock frequency 133, 166 MHz or quit to abort\n");
 
 #endif
 			nbytes = readline (" ? ");
@@ -117,7 +117,7 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	}
 
 	do {
-		printf("enter Pci-X clock frequency 33, 66, 100 or 133 Mhz or quit to abort\n");
+		printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n");
 		nbytes = readline (" ? ");
 
 		if (strcmp(console_buffer, "quit") == 0)
@@ -133,10 +133,10 @@ static int do_bootstrap(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 	} while (nbytes == 0);
 
-	printf("\nsys clk   = %sMhz\n", sysClock);
-	printf("cpu clk   = %sMhz\n", cpuClock);
-	printf("plb clk   = %sMhz\n", plbClock);
-	printf("Pci-X clk = %sMhz\n", pcixClock);
+	printf("\nsys clk   = %s MHz\n", sysClock);
+	printf("cpu clk   = %s MHz\n", cpuClock);
+	printf("plb clk   = %s MHz\n", plbClock);
+	printf("Pci-X clk = %s MHz\n", pcixClock);
 
 	do {
 		printf("\npress [y] to write I2C bootstrap \n");
diff --git a/board/amcc/yucca/cmd_yucca.c b/board/amcc/yucca/cmd_yucca.c
index bd42c5d46..d9698602b 100644
--- a/board/amcc/yucca/cmd_yucca.c
+++ b/board/amcc/yucca/cmd_yucca.c
@@ -69,7 +69,7 @@ static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
 		chip = IIC0_ALT_BOOTPROM_ADDR;
 
 	do {
-		printf("enter sys clock frequency 33 or 66 Mhz or quit to abort\n");
+		printf("enter sys clock frequency 33 or 66 MHz or quit to abort\n");
 		nbytes = readline (" ? ");
 
 		if (strcmp(console_buffer, "quit") == 0)
@@ -85,12 +85,12 @@ static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
 
 	do {
 		if (strcmp(sysClock, "66") == 0) {
-			printf("enter cpu clock frequency 400, 533 Mhz or quit to abort\n");
+			printf("enter cpu clock frequency 400, 533 MHz or quit to abort\n");
 		} else {
 #ifdef	CONFIG_STRESS
-			printf("enter cpu clock frequency 400, 500, 533, 667 Mhz or quit to abort\n");
+			printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n");
 #else
-			printf("enter cpu clock frequency 400, 500, 533 Mhz or quit to abort\n");
+			printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n");
 #endif
 		}
 		nbytes = readline (" ? ");
@@ -130,11 +130,11 @@ static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
 	} else {
 		do {
 			if (strcmp(cpuClock, "400") == 0)
-				printf("enter plb clock frequency 100, 133 Mhz or quit to abort\n");
+				printf("enter plb clock frequency 100, 133 MHz or quit to abort\n");
 
 #ifdef	CONFIG_STRESS
 			if (strcmp(cpuClock, "667") == 0)
-				printf("enter plb clock frequency 133, 166 Mhz or quit to abort\n");
+				printf("enter plb clock frequency 133, 166 MHz or quit to abort\n");
 
 #endif
 			nbytes = readline (" ? ");
@@ -160,7 +160,7 @@ static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
 	}
 
 	do {
-		printf("enter Pci-X clock frequency 33, 66, 100 or 133 Mhz or quit to abort\n");
+		printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n");
 		nbytes = readline (" ? ");
 
 		if (strcmp(console_buffer, "quit") == 0)
@@ -176,10 +176,10 @@ static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
 
 	} while (nbytes == 0);
 
-	printf("\nsys clk   = %sMhz\n", sysClock);
-	printf("cpu clk   = %sMhz\n", cpuClock);
-	printf("plb clk   = %sMhz\n", plbClock);
-	printf("Pci-X clk = %sMhz\n", pcixClock);
+	printf("\nsys clk   = %s MHz\n", sysClock);
+	printf("cpu clk   = %s MHz\n", cpuClock);
+	printf("plb clk   = %s MHz\n", plbClock);
+	printf("Pci-X clk = %s MHz\n", pcixClock);
 
 	do {
 		printf("\npress [y] to write I2C bootstrap \n");
diff --git a/board/bf537-stamp/post-memory.c b/board/bf537-stamp/post-memory.c
index 7c36c8155..889aa5c4f 100644
--- a/board/bf537-stamp/post-memory.c
+++ b/board/bf537-stamp/post-memory.c
@@ -27,18 +27,18 @@ const int pll[CCLK_NUM][SCLK_NUM][2] = {
 	{{4, 1}, {4, 2}, {4, 4}}	/* CCLK = 100M */
 };
 const char *const log[CCLK_NUM][SCLK_NUM] = {
-	{"CCLK-500Mhz SCLK-125Mhz:    Writing...\0",
-	 "CCLK-500Mhz SCLK-100Mhz:    Writing...\0",
-	 "CCLK-500Mhz SCLK- 50Mhz:    Writing...\0",},
-	{"CCLK-400Mhz SCLK-100Mhz:    Writing...\0",
-	 "CCLK-400Mhz SCLK- 80Mhz:    Writing...\0",
-	 "CCLK-400Mhz SCLK- 50Mhz:    Writing...\0",},
-	{"CCLK-200Mhz SCLK-100Mhz:    Writing...\0",
-	 "CCLK-200Mhz SCLK- 50Mhz:    Writing...\0",
-	 "CCLK-200Mhz SCLK- 40Mhz:    Writing...\0",},
-	{"CCLK-100Mhz SCLK-100Mhz:    Writing...\0",
-	 "CCLK-100Mhz SCLK- 50Mhz:    Writing...\0",
-	 "CCLK-100Mhz SCLK- 25Mhz:    Writing...\0",},
+	{"CCLK-500MHz SCLK-125MHz:    Writing...\0",
+	 "CCLK-500MHz SCLK-100MHz:    Writing...\0",
+	 "CCLK-500MHz SCLK- 50MHz:    Writing...\0",},
+	{"CCLK-400MHz SCLK-100MHz:    Writing...\0",
+	 "CCLK-400MHz SCLK- 80MHz:    Writing...\0",
+	 "CCLK-400MHz SCLK- 50MHz:    Writing...\0",},
+	{"CCLK-200MHz SCLK-100MHz:    Writing...\0",
+	 "CCLK-200MHz SCLK- 50MHz:    Writing...\0",
+	 "CCLK-200MHz SCLK- 40MHz:    Writing...\0",},
+	{"CCLK-100MHz SCLK-100MHz:    Writing...\0",
+	 "CCLK-100MHz SCLK- 50MHz:    Writing...\0",
+	 "CCLK-100MHz SCLK- 25MHz:    Writing...\0",},
 };
 
 int memory_post_test(int flags)
diff --git a/board/cray/L1/L1.c b/board/cray/L1/L1.c
index 2babd2d35..1c82bdf12 100644
--- a/board/cray/L1/L1.c
+++ b/board/cray/L1/L1.c
@@ -205,13 +205,13 @@ static void init_sdram (void)
 /* To set the appropriate timings, we need to know the SDRAM speed.	*/
 /* We can use the PLB speed since the SDRAM speed is the same as	*/
 /* the PLB speed. The PLB speed is the FBK divider times the		*/
-/* 405GP reference clock, which on the L1 is 25Mhz.			*/
-/* Thus, if FBK div is 2, SDRAM is 50Mhz; if FBK div is 3, SDRAM is	*/
-/* 150Mhz; if FBK is 3, SDRAM is 150Mhz.				*/
+/* 405GP reference clock, which on the L1 is 25MHz.			*/
+/* Thus, if FBK div is 2, SDRAM is 50MHz; if FBK div is 3, SDRAM is	*/
+/* 150MHz; if FBK is 3, SDRAM is 150MHz.				*/
 
 	/* divisor = ((mfdcr(strap)>> 28) & 0x3); */
 
-/* write SDRAM timing for 100Mhz. */
+/* write SDRAM timing for 100MHz. */
 	mtdcr (memcfga, mem_sdtr1);
 	mtdcr (memcfgd, 0x0086400D);
 
diff --git a/board/eltec/bab7xx/misc.c b/board/eltec/bab7xx/misc.c
index 1c94a76d4..bc6eb4055 100644
--- a/board/eltec/bab7xx/misc.c
+++ b/board/eltec/bab7xx/misc.c
@@ -377,7 +377,7 @@ int misc_init_r (void)
     {
 	if (pci_find_device(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C860, 0) > 0)
 	{
-	    /* BAB740 with SCSI=IRQ 11; SCC=IRQ 9; no IDE; NCR860 at 80 Mhz */
+	    /* BAB740 with SCSI=IRQ 11; SCC=IRQ 9; no IDE; NCR860 at 80 MHz */
 	    scsi_dev_id = PCI_DEVICE_ID_NCR_53C860;
 	    scsi_max_scsi_id = 7;
 	    scsi_sym53c8xx_ccf = 0x15;
diff --git a/board/esd/cpci750/pci.c b/board/esd/cpci750/pci.c
index cbe766ffd..bfc7e555b 100644
--- a/board/esd/cpci750/pci.c
+++ b/board/esd/cpci750/pci.c
@@ -66,13 +66,13 @@ static void gt_pci_bus_mode_display (PCI_HOST host)
 		printf ("PCI %d bus mode: Conventional PCI\n", host);
 		break;
 	case 1:
-		printf ("PCI %d bus mode: 66 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 66 MHz PCIX\n", host);
 		break;
 	case 2:
-		printf ("PCI %d bus mode: 100 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 100 MHz PCIX\n", host);
 		break;
 	case 3:
-		printf ("PCI %d bus mode: 133 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 133 MHz PCIX\n", host);
 		break;
 	default:
 		printf ("Unknown BUS %d\n", mode);
diff --git a/board/esd/pci405/pci405.c b/board/esd/pci405/pci405.c
index 4db70521b..911278898 100644
--- a/board/esd/pci405/pci405.c
+++ b/board/esd/pci405/pci405.c
@@ -347,7 +347,7 @@ int checkboard (void)
 		if (value) {
 			puts(", 33 MHz PCI");
 		} else {
-			puts(", 66 Mhz PCI");
+			puts(", 66 MHz PCI");
 		}
 	}
 
diff --git a/board/fads/fads.c b/board/fads/fads.c
index 278fa2ab2..9f7faaf47 100644
--- a/board/fads/fads.c
+++ b/board/fads/fads.c
@@ -449,19 +449,19 @@ static int _initsdram(uint base, uint noMbytes)
 	/* Now run the precharge/nop/mrs commands.
 	*/
 
-	memctl->memc_mcr = 0x80808111;   /* run umpb cs4 1 count 1, addr 0x11 ??? (50Mhz) */
-	                                 /* run umpb cs4 1 count 1, addr 0x11 precharge+MRS (100Mhz) */
+	memctl->memc_mcr = 0x80808111;   /* run umpb cs4 1 count 1, addr 0x11 ??? (50MHz) */
+	                                 /* run umpb cs4 1 count 1, addr 0x11 precharge+MRS (100MHz) */
 	udelay(200);
 
 	/* Run 8 refresh cycles */
 
-	memctl->memc_mcr = SDRAM_MCRVALUE0; /* run upmb cs4 loop 1 addr 0x5 precharge+MRS (50 Mhz)*/
+	memctl->memc_mcr = SDRAM_MCRVALUE0; /* run upmb cs4 loop 1 addr 0x5 precharge+MRS (50 MHz)*/
 					    /* run upmb cs4 loop 1 addr 0x11 precharge+MRS (100MHz) */
 
 	udelay(200);
 
-	memctl->memc_mbmr = SDRAM_MBMRVALUE1; /* TLF 4 (100 Mhz) or TLF 8 (50MHz) */
-	memctl->memc_mcr = SDRAM_MCRVALUE1; /* run upmb cs4 loop 1 addr 0x30 refr (50 Mhz) */
+	memctl->memc_mbmr = SDRAM_MBMRVALUE1; /* TLF 4 (100 MHz) or TLF 8 (50MHz) */
+	memctl->memc_mcr = SDRAM_MCRVALUE1; /* run upmb cs4 loop 1 addr 0x30 refr (50 MHz) */
 					    /* run upmb cs4 loop 1 addr 0x11 precharge+MRS ??? (100MHz) */
 
 	udelay(200);
diff --git a/board/freescale/mpc8540ads/mpc8540ads.c b/board/freescale/mpc8540ads/mpc8540ads.c
index 7dccd3735..a0b6fbd12 100644
--- a/board/freescale/mpc8540ads/mpc8540ads.c
+++ b/board/freescale/mpc8540ads/mpc8540ads.c
@@ -127,8 +127,8 @@ local_bus_init(void)
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
-	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
-	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
+	 * If localbus freq is < 66MHz, DLL bypass mode must be used.
+	 * If localbus freq is > 133MHz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */
 
diff --git a/board/freescale/mpc8541cds/mpc8541cds.c b/board/freescale/mpc8541cds/mpc8541cds.c
index 7c35c35fc..7e40c5c80 100644
--- a/board/freescale/mpc8541cds/mpc8541cds.c
+++ b/board/freescale/mpc8541cds/mpc8541cds.c
@@ -302,8 +302,8 @@ local_bus_init(void)
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
-	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
-	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
+	 * If localbus freq is < 66MHz, DLL bypass mode must be used.
+	 * If localbus freq is > 133MHz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */
 
diff --git a/board/freescale/mpc8555cds/mpc8555cds.c b/board/freescale/mpc8555cds/mpc8555cds.c
index 4cd25b671..33685c19f 100644
--- a/board/freescale/mpc8555cds/mpc8555cds.c
+++ b/board/freescale/mpc8555cds/mpc8555cds.c
@@ -302,8 +302,8 @@ local_bus_init(void)
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
-	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
-	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
+	 * If localbus freq is < 66MHz, DLL bypass mode must be used.
+	 * If localbus freq is > 133MHz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */
 
diff --git a/board/freescale/mpc8560ads/mpc8560ads.c b/board/freescale/mpc8560ads/mpc8560ads.c
index 4fe1d8538..37308189d 100644
--- a/board/freescale/mpc8560ads/mpc8560ads.c
+++ b/board/freescale/mpc8560ads/mpc8560ads.c
@@ -331,8 +331,8 @@ local_bus_init(void)
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
-	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
-	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
+	 * If localbus freq is < 66MHz, DLL bypass mode must be used.
+	 * If localbus freq is > 133MHz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */
 
diff --git a/board/gen860t/beeper.c b/board/gen860t/beeper.c
index b472b914e..c6be83f65 100644
--- a/board/gen860t/beeper.c
+++ b/board/gen860t/beeper.c
@@ -36,7 +36,7 @@
 
 /*
  * Initialize beeper-related hardware. Initialize timer 1 for use with
- * the beeper. Use 66 Mhz internal clock with prescale of 33 to get
+ * the beeper. Use 66 MHz internal clock with prescale of 33 to get
  * 1 uS period per count.
  * FIXME: we should really compute the prescale based on the reported
  * core clock frequency.
diff --git a/board/idmr/idmr.c b/board/idmr/idmr.c
index 3771c191e..682991379 100644
--- a/board/idmr/idmr.c
+++ b/board/idmr/idmr.c
@@ -78,7 +78,7 @@ phys_size_t initdram (int board_type) {
 			MCF_GPIO_SDRAM_SDCS_01);
 
 	/*
-	 * Wait 100us.  We run the bus at 50Mhz, one cycle is 20ns. So 5
+	 * Wait 100us.  We run the bus at 50MHz, one cycle is 20ns. So 5
 	 * iterations will do, but we do 10 just to be safe.
 	 */
 	for (i = 0; i < 10; ++i)
diff --git a/board/motionpro/motionpro.c b/board/motionpro/motionpro.c
index 842bce6f3..b3692190b 100644
--- a/board/motionpro/motionpro.c
+++ b/board/motionpro/motionpro.c
@@ -5,7 +5,7 @@
  * modified for Promess PRO - by Andy Joseph, andy@promessdev.com
  * modified for Promess PRO-Motion - by Robert McCullough, rob@promessdev.com
  * modified by Chris M. Tumas 6/20/06 Change CAS latency to 2 from 3
- * Also changed the refresh for 100Mhz operation
+ * Also changed the refresh for 100MHz operation
  *
  * See file CREDITS for list of people who contributed to this
  * project.
diff --git a/board/mpc8540eval/mpc8540eval.c b/board/mpc8540eval/mpc8540eval.c
index 9b564b892..fa0a33686 100644
--- a/board/mpc8540eval/mpc8540eval.c
+++ b/board/mpc8540eval/mpc8540eval.c
@@ -100,7 +100,7 @@ phys_size_t initdram (int board_type)
 
 #if !defined(CONFIG_RAM_AS_FLASH) /* LocalBus is not emulating flash */
 	get_sys_info(&sysinfo);
-	/* if localbus freq is less than 66Mhz,we use bypass mode,otherwise use DLL */
+	/* if localbus freq is less than 66MHz,we use bypass mode,otherwise use DLL */
 	if(sysinfo.freqSystemBus/(CONFIG_SYS_LBC_LCRR & 0x0f) < 66000000) {
 		lbc->lcrr = (CONFIG_SYS_LBC_LCRR & 0x0fffffff)| 0x80000000;
 	} else {
diff --git a/board/mpl/pip405/pip405.c b/board/mpl/pip405/pip405.c
index 3be010470..8724e27af 100644
--- a/board/mpl/pip405/pip405.c
+++ b/board/mpl/pip405/pip405.c
@@ -252,7 +252,7 @@ int board_early_init_f (void)
 		(datain[2] != 0x04) ||	/* if not SDRAM */
 		(!((datain[6] == 0x40) || (datain[6] == 0x48))) ||	/* or not (64 Bit or 72 Bit)  */
 		(datain[7] != 0x00) || (datain[8] != 0x01) ||	/* or not LVTTL signal levels */
-		(datain[126] == 0x66))	/* or a 66Mhz modules */
+		(datain[126] == 0x66))	/* or a 66MHz modules */
 		SDRAM_err ("unsupported SDRAM");
 #ifdef SDRAM_DEBUG
 	serial_puts ("SDRAM sanity ok\n");
diff --git a/board/pm854/pm854.c b/board/pm854/pm854.c
index db855df6f..fed0ed431 100644
--- a/board/pm854/pm854.c
+++ b/board/pm854/pm854.c
@@ -144,8 +144,8 @@ local_bus_init(void)
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
-	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
-	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
+	 * If localbus freq is < 66MHz, DLL bypass mode must be used.
+	 * If localbus freq is > 133MHz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */
 
diff --git a/board/pm856/pm856.c b/board/pm856/pm856.c
index 50c42810b..932f1121e 100644
--- a/board/pm856/pm856.c
+++ b/board/pm856/pm856.c
@@ -300,8 +300,8 @@ local_bus_init(void)
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
-	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
-	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
+	 * If localbus freq is < 66MHz, DLL bypass mode must be used.
+	 * If localbus freq is > 133MHz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */
 
diff --git a/board/prodrive/p3mx/pci.c b/board/prodrive/p3mx/pci.c
index 85f7caab0..e36b67664 100644
--- a/board/prodrive/p3mx/pci.c
+++ b/board/prodrive/p3mx/pci.c
@@ -66,13 +66,13 @@ static void gt_pci_bus_mode_display (PCI_HOST host)
 		printf ("PCI %d bus mode: Conventional PCI\n", host);
 		break;
 	case 1:
-		printf ("PCI %d bus mode: 66 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 66 MHz PCIX\n", host);
 		break;
 	case 2:
-		printf ("PCI %d bus mode: 100 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 100 MHz PCIX\n", host);
 		break;
 	case 3:
-		printf ("PCI %d bus mode: 133 Mhz PCIX\n", host);
+		printf ("PCI %d bus mode: 133 MHz PCIX\n", host);
 		break;
 	default:
 		printf ("Unknown BUS %d\n", mode);
diff --git a/board/sbc8560/sbc8560.c b/board/sbc8560/sbc8560.c
index f01f87e1a..3d4008b00 100644
--- a/board/sbc8560/sbc8560.c
+++ b/board/sbc8560/sbc8560.c
@@ -297,7 +297,7 @@ phys_size_t initdram (int board_type)
 #if 0
 #if !defined(CONFIG_RAM_AS_FLASH) /* LocalBus SDRAM is not emulating flash */
 	get_sys_info(&sysinfo);
-	/* if localbus freq is less than 66Mhz,we use bypass mode,otherwise use DLL */
+	/* if localbus freq is less than 66MHz,we use bypass mode,otherwise use DLL */
 	if(sysinfo.freqSystemBus/(CONFIG_SYS_LBC_LCRR & 0x0f) < 66000000) {
 		lbc->lcrr = (CONFIG_SYS_LBC_LCRR & 0x0fffffff)| 0x80000000;
 	} else {
diff --git a/board/siemens/IAD210/IAD210.c b/board/siemens/IAD210/IAD210.c
index e9e7f8472..e21bb245a 100644
--- a/board/siemens/IAD210/IAD210.c
+++ b/board/siemens/IAD210/IAD210.c
@@ -240,7 +240,7 @@ int board_early_init_f (void)
 	iop->iop_padir = 0x0800;
 
 	/* start timer 2 for the 4hz LED blink rate */
-	timers->cpmt_tmr2 = 0xff2c;	/* 4hz for 64mhz */
+	timers->cpmt_tmr2 = 0xff2c;	/* 4HZ for 64MHz */
 	timers->cpmt_trr2 = 0x000003d0;	/* clk/16 , prescale=256 */
 	timers->cpmt_tgcr = 0x00000810;	/* run timer 2 */
 
diff --git a/board/siemens/IAD210/atm.c b/board/siemens/IAD210/atm.c
index d1b75bca3..e599c1061 100644
--- a/board/siemens/IAD210/atm.c
+++ b/board/siemens/IAD210/atm.c
@@ -579,7 +579,7 @@ void atmUtpInit()
   /*                    11 = divide by 7                             */
   /*                                                                 */
   /* Note that the UTOPIA clock must be programmed as to operate     */
-  /* within the range SYSCLK/10 .. 50Mhz.                            */
+  /* within the range SYSCLK/10 .. 50MHz.                            */
   /*-----------------------------------------------------------------*/
   car->car_sccr &= 0xFFFFFFE0;
   car->car_sccr |= 0x00000008; /* UTPCLK = SYSCLK / 4 */
diff --git a/board/tqc/tqm85xx/tqm85xx.c b/board/tqc/tqm85xx/tqm85xx.c
index f69de9575..1f309bbc6 100644
--- a/board/tqc/tqm85xx/tqm85xx.c
+++ b/board/tqc/tqm85xx/tqm85xx.c
@@ -458,8 +458,8 @@ void local_bus_init (void)
 	 * Errata LBC11.
 	 * Fix Local Bus clock glitch when DLL is enabled.
 	 *
-	 * If localbus freq is < 66Mhz, DLL bypass mode must be used.
-	 * If localbus freq is > 133Mhz, DLL can be safely enabled.
+	 * If localbus freq is < 66MHz, DLL bypass mode must be used.
+	 * If localbus freq is > 133MHz, DLL can be safely enabled.
 	 * Between 66 and 133, the DLL is enabled with an override workaround.
 	 */
 
diff --git a/cpu/ixp/npe/miiphy.c b/cpu/ixp/npe/miiphy.c
index c63c54e28..20fee2d39 100644
--- a/cpu/ixp/npe/miiphy.c
+++ b/cpu/ixp/npe/miiphy.c
@@ -32,7 +32,7 @@
   |  Date	 Description of Change					     BY
   |  ---------	 ---------------------					     ---
   |  05-May-99	 Created						     MKW
-  |  01-Jul-99	 Changed clock setting of sta_reg from 66Mhz to 50Mhz to
+  |  01-Jul-99	 Changed clock setting of sta_reg from 66MHz to 50MHz to
   |		 better match OPB speed. Also modified delay times.	     JWB
   |  29-Jul-99	 Added Full duplex support				     MKW
   |  24-Aug-99	 Removed printf from dp83843_duplex()			     JWB
diff --git a/cpu/mips/incaip_clock.c b/cpu/mips/incaip_clock.c
index d0515ca67..fc2c62180 100644
--- a/cpu/mips/incaip_clock.c
+++ b/cpu/mips/incaip_clock.c
@@ -33,8 +33,8 @@
 *
 * RETURNS:
 *          150.000.000 for 150 MHz
-*          133.333.333 for 133 Mhz (= 400MHz/3)
-*          100.000.000 for 100 Mhz (= 400MHz/4)
+*          133.333.333 for 133 MHz (= 400MHz/3)
+*          100.000.000 for 100 MHz (= 400MHz/4)
 * NOTE:
 *   This functions should be used by the hardware driver to get the correct
 *   frequency of the CPU. Don't use the macros, which are set to init the CPU
diff --git a/cpu/mpc8220/i2cCore.c b/cpu/mpc8220/i2cCore.c
index accf43c10..b89ad034f 100644
--- a/cpu/mpc8220/i2cCore.c
+++ b/cpu/mpc8220/i2cCore.c
@@ -440,7 +440,7 @@ STATUS i2c_write2byte (SI2C * pi2c, UINT16 * writeb)
 	return OK;
 }
 
-/* FDR table base on 33Mhz - more detail please refer to Odini2c_dividers.xls
+/* FDR table base on 33MHz - more detail please refer to Odini2c_dividers.xls
 FDR FDR scl sda scl2tap2
 510 432 tap tap tap tap scl_per	    sda_hold	I2C Freq    0	1   2	3   4	5
 000 000 9   3	4   1	28 Clocks   9 Clocks	1190 KHz    0	0   0	0   0	0
diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c
index 359a91558..42a4e675d 100644
--- a/cpu/mpc83xx/spd_sdram.c
+++ b/cpu/mpc83xx/spd_sdram.c
@@ -314,7 +314,7 @@ long int spd_sdram()
 			+ (spd.clk_cycle & 0x0f));
 	max_data_rate = max_bus_clk * 2;
 
-	debug("DDR:Module maximum data rate is: %dMhz\n", max_data_rate);
+	debug("DDR:Module maximum data rate is: %d MHz\n", max_data_rate);
 
 	ddrc_clk = gd->mem_clk / 1000000;
 	effective_data_rate = 0;
@@ -401,7 +401,7 @@ long int spd_sdram()
 		}
 	}
 
-	debug("DDR:Effective data rate is: %dMhz\n", effective_data_rate);
+	debug("DDR:Effective data rate is: %dMHz\n", effective_data_rate);
 	debug("DDR:The MSB 1 of CAS Latency is: %d\n", caslat);
 
 	/*
diff --git a/cpu/mpc8xx/fec.c b/cpu/mpc8xx/fec.c
index 141425d8e..89c1ff939 100644
--- a/cpu/mpc8xx/fec.c
+++ b/cpu/mpc8xx/fec.c
@@ -398,7 +398,7 @@ static void fec_pin_init(int fecidx)
 	 * * the MII management interface clock must be less than or equal
 	 * * to 2.5 MHz.
 	 * * This MDC frequency is equal to system clock / (2 * MII_SPEED).
-	 * * Then MII_SPEED = system_clock / 2 * 2,5 Mhz.
+	 * * Then MII_SPEED = system_clock / 2 * 2,5 MHz.
 	 *
 	 * All MII configuration is done via FEC1 registers:
 	 */
diff --git a/cpu/mpc8xx/serial.c b/cpu/mpc8xx/serial.c
index cae90ddaf..bd90dcd3b 100644
--- a/cpu/mpc8xx/serial.c
+++ b/cpu/mpc8xx/serial.c
@@ -70,7 +70,7 @@ static void serial_setdivisor(volatile cpm8xx_t *cp)
 	int divisor=(gd->cpu_clk + 8*gd->baudrate)/16/gd->baudrate;
 
 	if(divisor/16>0x1000) {
-		/* bad divisor, assume 50Mhz clock and 9600 baud */
+		/* bad divisor, assume 50MHz clock and 9600 baud */
 		divisor=(50*1000*1000 + 8*9600)/16/9600;
 	}
 
diff --git a/cpu/ppc4xx/4xx_pci.c b/cpu/ppc4xx/4xx_pci.c
index eca92e83b..e8871fc45 100644
--- a/cpu/ppc4xx/4xx_pci.c
+++ b/cpu/ppc4xx/4xx_pci.c
@@ -286,7 +286,7 @@ void pci_405gp_init(struct pci_controller *hose)
 #endif /* CONFIG_SYS_PCI_CLASSCODE */
 
 	/*--------------------------------------------------------------------------+
-	 * If PCI speed = 66Mhz, set 66Mhz capable bit.
+	 * If PCI speed = 66MHz, set 66MHz capable bit.
 	 *--------------------------------------------------------------------------*/
 	if (bd->bi_pci_busfreq >= 66000000) {
 		pci_read_config_word(PCIDEVID_405GP, PCI_STATUS, &temp_short);
diff --git a/cpu/ppc4xx/miiphy.c b/cpu/ppc4xx/miiphy.c
index 84b1bbe54..01710e71d 100644
--- a/cpu/ppc4xx/miiphy.c
+++ b/cpu/ppc4xx/miiphy.c
@@ -301,7 +301,7 @@ static int emac_miiphy_command(u8 addr, u8 reg, int cmd, u16 value)
 
 	sta_reg = reg;		/* reg address */
 
-	/* set clock (50Mhz) and read flags */
+	/* set clock (50MHz) and read flags */
 #if defined(CONFIG_440GX) || defined(CONFIG_440SPE) || \
     defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \
     defined(CONFIG_460EX) || defined(CONFIG_460GT) || \
diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c
index d21bd82dc..ed6e55b69 100644
--- a/cpu/ppc4xx/speed.c
+++ b/cpu/ppc4xx/speed.c
@@ -148,7 +148,7 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
 		 * is equal to the 405GP SYS_CLK_FREQ. If not in bypass mode, check VCO
 		 * to make sure it is within the proper range.
 		 *    spec:    VCO = SYS_CLOCK x FBKDIV x PLBDIV x FWDDIV
-		 * Note freqVCO is calculated in Mhz to avoid errors introduced by rounding.
+		 * Note freqVCO is calculated in MHz to avoid errors introduced by rounding.
 		 */
 		if (sysInfo->pllFwdDiv == 1) {
 			sysInfo->freqProcessor = CONFIG_SYS_CLK_FREQ;
diff --git a/cpu/s3c44b0/cpu.c b/cpu/s3c44b0/cpu.c
index fd09bf910..2960f2f3a 100644
--- a/cpu/s3c44b0/cpu.c
+++ b/cpu/s3c44b0/cpu.c
@@ -256,7 +256,7 @@ void i2c_init(int speed, int slaveaddr)
 
 	/*
 		Enable ACK, IICCLK=MCLK/16, enable interrupt
-		75Mhz/16/(12+1) = 390625 Hz
+		75MHz/16/(12+1) = 390625 Hz
 	*/
 	rIICCON=(1<<7)|(0<<6)|(1<<5)|(0xC);
 	IICCON = rIICCON;
diff --git a/drivers/block/sym53c8xx.c b/drivers/block/sym53c8xx.c
index 0c60bf80e..8094b415a 100644
--- a/drivers/block/sym53c8xx.c
+++ b/drivers/block/sym53c8xx.c
@@ -836,10 +836,10 @@ void scsi_chip_init(void)
 	scsi_write_byte(SCNTL0,0xC0); /* full arbitration no start, no message, parity disabled, master */
 	scsi_write_byte(SCNTL1,0x00);
 	scsi_write_byte(SCNTL2,0x00);
-#ifndef CONFIG_SYS_SCSI_SYM53C8XX_CCF    /* config value for none 40 mhz clocks */
+#ifndef CONFIG_SYS_SCSI_SYM53C8XX_CCF    /* config value for none 40 MHz clocks */
 	scsi_write_byte(SCNTL3,0x13); /* synchronous clock 40/4=10MHz, asynchronous 40MHz */
 #else
-	scsi_write_byte(SCNTL3,CONFIG_SYS_SCSI_SYM53C8XX_CCF); /* config value for none 40 mhz clocks */
+	scsi_write_byte(SCNTL3,CONFIG_SYS_SCSI_SYM53C8XX_CCF); /* config value for none 40 MHz clocks */
 #endif
 	scsi_write_byte(SCID,0x47); /* ID=7, enable reselection */
 	scsi_write_byte(SXFER,0x00); /* synchronous transfer period 10MHz, asynchronous */
diff --git a/drivers/i2c/omap1510_i2c.c b/drivers/i2c/omap1510_i2c.c
index a4e6227c5..f91ee8884 100644
--- a/drivers/i2c/omap1510_i2c.c
+++ b/drivers/i2c/omap1510_i2c.c
@@ -32,7 +32,7 @@ void i2c_init (int speed, int slaveadd)
 		udelay (5000);
 	}
 
-	/* 12Mhz I2C module clock */
+	/* 12MHz I2C module clock */
 	outw (0, I2C_PSC);
 	outw (I2C_CON_EN, I2C_CON);
 	outw (0, I2C_SYSTEST);
diff --git a/drivers/i2c/omap24xx_i2c.c b/drivers/i2c/omap24xx_i2c.c
index 134dccb61..d2e8207c5 100644
--- a/drivers/i2c/omap24xx_i2c.c
+++ b/drivers/i2c/omap24xx_i2c.c
@@ -45,7 +45,7 @@ void i2c_init (int speed, int slaveadd)
 		udelay (50000);
 	}
 
-	/* 12Mhz I2C module clock */
+	/* 12MHz I2C module clock */
 	outw (0, I2C_PSC);
 	speed = speed/1000;		    /* 100 or 400 */
 	scl = ((12000/(speed*2)) - 7);	/* use 7 when PSC = 0 */
diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c
index ff8d2d7c0..ce12c3b62 100644
--- a/drivers/net/natsemi.c
+++ b/drivers/net/natsemi.c
@@ -409,7 +409,7 @@ natsemi_initialize(bd_t * bis)
    The EEPROM code is for common 93c06/46 EEPROMs w/ 6bit addresses.  */
 
 /* Delay between EEPROM clock transitions.
-   No extra delay is needed with 33Mhz PCI, but future 66Mhz
+   No extra delay is needed with 33MHz PCI, but future 66MHz
    access may need a delay. */
 #define eeprom_delay(ee_addr)	INL(dev, ee_addr)
 
diff --git a/drivers/net/ns8382x.c b/drivers/net/ns8382x.c
index a2d61afec..198f73dee 100644
--- a/drivers/net/ns8382x.c
+++ b/drivers/net/ns8382x.c
@@ -445,7 +445,7 @@ ns8382x_initialize(bd_t * bis)
 	Read and write MII registers using software-generated serial MDIO
 	protocol.  See the MII specifications or DP83840A data sheet for details.
 
-	The maximum data clock rate is 2.5 Mhz.  To meet minimum timing we
+	The maximum data clock rate is 2.5 MHz.  To meet minimum timing we
 	must flush writes to the PCI bus with a PCI read. */
 #define mdio_delay(mdio_addr) INL(dev, mdio_addr)
 
diff --git a/drivers/net/rtl8139.c b/drivers/net/rtl8139.c
index d378ce39b..db8a727c8 100644
--- a/drivers/net/rtl8139.c
+++ b/drivers/net/rtl8139.c
@@ -287,7 +287,7 @@ static int rtl8139_probe(struct eth_device *dev, bd_t *bis)
 
 /*
 	Delay between EEPROM clock transitions.
-	No extra delay is needed with 33Mhz PCI, but 66Mhz may change this.
+	No extra delay is needed with 33MHz PCI, but 66MHz may change this.
 */
 
 #define eeprom_delay()	inl(ee_addr)
diff --git a/drivers/net/tigon3.c b/drivers/net/tigon3.c
index ab448b0f8..e4e004eed 100644
--- a/drivers/net/tigon3.c
+++ b/drivers/net/tigon3.c
@@ -2247,7 +2247,7 @@ LM_STATUS LM_ResetAdapter (PLM_DEVICE_BLOCK pDevice)
 	REG_WR (pDevice, Grc.Mode, Value32);
 
 	/* Setup the timer prescalar register. */
-	REG_WR (pDevice, Grc.MiscCfg, 65 << 1);	/* Clock is alwasy 66Mhz. */
+	REG_WR (pDevice, Grc.MiscCfg, 65 << 1);	/* Clock is alwasy 66MHz. */
 
 	/* Set up the MBUF pool base address and size. */
 	REG_WR (pDevice, BufMgr.MbufPoolAddr, pDevice->MbufBase);
diff --git a/drivers/usb/usbdcore_mpc8xx.c b/drivers/usb/usbdcore_mpc8xx.c
index fa02003d1..53bde0dca 100644
--- a/drivers/usb/usbdcore_mpc8xx.c
+++ b/drivers/usb/usbdcore_mpc8xx.c
@@ -1227,7 +1227,7 @@ static void mpc8xx_udc_clock_init (volatile immap_t * immr,
 		return;
 	}
 
-	/* Assume the brgclk is 'good enough', we want !(gd->cpu_clk%48Mhz)
+	/* Assume the brgclk is 'good enough', we want !(gd->cpu_clk%48MHz)
 	 * but, can /probably/ live with close-ish alternative rates.
 	 */
 	divisor = (gd->cpu_clk / 48000000L) - 1;