diff --git a/cpu/mpc5xxx/cpu_init.c b/cpu/mpc5xxx/cpu_init.c
index 7e65821852..d7440308a4 100644
--- a/cpu/mpc5xxx/cpu_init.c
+++ b/cpu/mpc5xxx/cpu_init.c
@@ -156,21 +156,21 @@ void cpu_init_f (void)
 	*(vu_long *)(MPC5XXX_XLBARB + 0x40) |= (1 << 15);
 	*(vu_long *)(MPC5XXX_XLBARB + 0x70) = CFG_SDRAM_BASE | 0x1d;
 
-# if defined(CFG_IPBSPEED_133)
+# if defined(CFG_IPBCLK_EQUALS_XLBCLK)
 	/* Motorola reports IPB should better run at 133 MHz. */
 	*(vu_long *)MPC5XXX_ADDECR |= 1;
 	/* pci_clk_sel = 0x02, ipb_clk_sel = 0x00; */
 	addecr = *(vu_long *)MPC5XXX_CDM_CFG;
 	addecr &= ~0x103;
-#  if defined(CFG_PCISPEED_66)
+#  if defined(CFG_PCICLK_EQUALS_IPBCLK_DIV2)
 	/* pci_clk_sel = 0x01 -> IPB_CLK/2 */
 	addecr |= 0x01;
 #  else
 	/* pci_clk_sel = 0x02 -> XLB_CLK/4 = IPB_CLK/4 */
 	addecr |= 0x02;
-#  endif /* CFG_PCISPEED_66 */
+#  endif /* CFG_PCICLK_EQUALS_IPBCLK_DIV2 */
 	*(vu_long *)MPC5XXX_CDM_CFG = addecr;
-# endif	/* CFG_IPBSPEED_133 */
+# endif	/* CFG_IPBCLK_EQUALS_XLBCLK */
 	/* Configure the XLB Arbiter */
 	*(vu_long *)MPC5XXX_XLBARB_MPRIEN = 0xff;
 	*(vu_long *)MPC5XXX_XLBARB_MPRIVAL = 0x11111111;
diff --git a/include/configs/BC3450.h b/include/configs/BC3450.h
index 5b54f30e08..bc30977fd7 100644
--- a/include/configs/BC3450.h
+++ b/include/configs/BC3450.h
@@ -282,17 +282,17 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
 /*
  * PCI Bus clocking configuration
  *
  * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
- * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet
- * hasn't been tested with a IPB Bus Clock of 66 MHz.
+ * CFG_IPBCLK_EQUALS_XLBCLK is defined. This is because a PCI Clock
+ *  of 66 MHz yet hasn't been tested with a IPB Bus Clock of 66 MHz.
  */
-#if defined(CFG_IPBSPEED_133)
-# define CFG_PCISPEED_66			/* define for 66MHz speed */
+#if defined(CFG_IPBCLK_EQUALS_XLBCLK)
+# define CFG_PCICLK_EQUALS_IPBCLK_DIV2	/* define for 66MHz speed */
 #endif
 
 /*
@@ -488,7 +488,7 @@
 
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
-#ifdef CFG_PCISPEED_66
+#ifdef CFG_PCICLK_EQUALS_IPBCLK_DIV2
 # define CFG_BOOTCS_CFG		0x0008DF30	/* for pci_clk	= 66 MHz */
 #else
 # define CFG_BOOTCS_CFG		0x0004DF30	/* for pci_clk = 33 MHz	 */
diff --git a/include/configs/IceCube.h b/include/configs/IceCube.h
index 0d3825413e..09f8d206ef 100644
--- a/include/configs/IceCube.h
+++ b/include/configs/IceCube.h
@@ -167,9 +167,9 @@
  * IPB Bus clocking configuration.
  */
 #if defined(CONFIG_LITE5200B)
-#define CFG_IPBSPEED_133 	/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK 	/* define for 133MHz speed */
 #else
-#undef CFG_IPBSPEED_133   	/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK   	/* define for 133MHz speed */
 #endif
 #endif /* CONFIG_MPC5200 */
 
diff --git a/include/configs/PM520.h b/include/configs/PM520.h
index 9c241e67e7..7d91a0160c 100644
--- a/include/configs/PM520.h
+++ b/include/configs/PM520.h
@@ -160,7 +160,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133   		/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK   		/* define for 133MHz speed */
 #endif
 /*
  * I2C configuration
diff --git a/include/configs/TB5200.h b/include/configs/TB5200.h
index 8a6e5a61b7..b42cfb6e1f 100644
--- a/include/configs/TB5200.h
+++ b/include/configs/TB5200.h
@@ -200,17 +200,17 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
-#if defined(CFG_IPBSPEED_133)
+#if defined(CFG_IPBCLK_EQUALS_XLBCLK)
 /*
  * PCI Bus clocking configuration
  *
  * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
- * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet hasn't
- * been tested with a IPB Bus Clock of 66 MHz.
+ * CFG_IPBCLK_EQUALS_XLBCLK is defined. This is because a PCI Clock 
+ * of 66 MHz yet hasn't been tested with a IPB Bus Clock of 66 MHz.
  */
-#define CFG_PCISPEED_66			/* define for 66MHz speed */
+#define CFG_PCICLK_EQUALS_IPBCLK_DIV2		/* define for 66MHz speed */
 #endif
 
 /*
@@ -432,7 +432,7 @@
 
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
-#ifdef CFG_PCISPEED_66
+#ifdef CFG_PCICLK_EQUALS_IPBCLK_DIV2
 #define CFG_BOOTCS_CFG		0x0008DF30 /* for pci_clk  = 66 MHz */
 #else
 #define CFG_BOOTCS_CFG		0x0004DF30 /* for pci_clk = 33 MHz */
diff --git a/include/configs/TOP5200.h b/include/configs/TOP5200.h
index f41dbd0ccb..1cc9ce94f9 100644
--- a/include/configs/TOP5200.h
+++ b/include/configs/TOP5200.h
@@ -186,7 +186,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133   		/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK   		/* define for 133MHz speed */
 
 /*
  * I2C configuration
diff --git a/include/configs/TQM5200.h b/include/configs/TQM5200.h
index 7069b35ad6..7935593feb 100644
--- a/include/configs/TQM5200.h
+++ b/include/configs/TQM5200.h
@@ -269,17 +269,17 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
-#if defined(CFG_IPBSPEED_133) && !defined(CONFIG_CAM5200)
+#if defined(CFG_IPBCLK_EQUALS_XLBCLK) && !defined(CONFIG_CAM5200)
 /*
  * PCI Bus clocking configuration
  *
  * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
- * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet hasn't
- * been tested with a IPB Bus Clock of 66 MHz.
+ * CFG_IPBCLK_EQUALS_XLBCLK is defined. This is because a PCI Clock of
+ * 66 MHz yet hasn't been tested with a IPB Bus Clock of 66 MHz.
  */
-#define CFG_PCISPEED_66			/* define for 66MHz speed */
+#define CFG_PCICLK_EQUALS_IPBCLK_DIV2	/* define for 66MHz speed */
 #endif
 
 /*
@@ -594,7 +594,7 @@
 
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
-#ifdef CFG_PCISPEED_66
+#ifdef CFG_PCICLK_EQUALS_IPBCLK_DIV2
 #define CFG_BOOTCS_CFG		0x0008DF30 /* for pci_clk  = 66 MHz */
 #else
 #define CFG_BOOTCS_CFG		0x0004DF30 /* for pci_clk = 33 MHz */
diff --git a/include/configs/Total5200.h b/include/configs/Total5200.h
index 8175703236..d8686dd39c 100644
--- a/include/configs/Total5200.h
+++ b/include/configs/Total5200.h
@@ -183,7 +183,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133   		/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK   		/* define for 133MHz speed */
 #endif
 
 /*
diff --git a/include/configs/aev.h b/include/configs/aev.h
index 8d9f0a1661..6c2a360378 100644
--- a/include/configs/aev.h
+++ b/include/configs/aev.h
@@ -166,17 +166,17 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
-#if defined(CFG_IPBSPEED_133)
+#if defined(CFG_IPBCLK_EQUALS_XLBCLK)
 /*
  * PCI Bus clocking configuration
  *
  * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
- * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet hasn't
- * been tested with a IPB Bus Clock of 66 MHz.
+ * CFG_IPBCLK_EQUALS_XLBCLK is defined. This is because a PCI Clock 
+ * of 66 MHz yet hasn't been tested with a IPB Bus Clock of 66 MHz.
  */
-#define CFG_PCISPEED_66			/* define for 66MHz speed */
+#define CFG_PCICLK_EQUALS_IPBCLK_DIV2	/* define for 66MHz speed */
 #endif
 
 /*
@@ -362,7 +362,7 @@
 
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
-#ifdef CFG_PCISPEED_66
+#ifdef CFG_PCICLK_EQUALS_IPBCLK_DIV2
 #define CFG_BOOTCS_CFG		0x0008DF30 /* for pci_clk  = 66 MHz */
 #else
 #define CFG_BOOTCS_CFG		0x0004DF30 /* for pci_clk = 33 MHz */
diff --git a/include/configs/canmb.h b/include/configs/canmb.h
index 2c160a4489..ec6d57e1e6 100644
--- a/include/configs/canmb.h
+++ b/include/configs/canmb.h
@@ -111,7 +111,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133   		/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK   		/* define for 133MHz speed */
 
 /*
  * Flash configuration, expect one 16 Megabyte Bank at most
diff --git a/include/configs/cpci5200.h b/include/configs/cpci5200.h
index f9586fbcb9..f5efcd911a 100644
--- a/include/configs/cpci5200.h
+++ b/include/configs/cpci5200.h
@@ -179,7 +179,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133		/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 #endif
 /*
  * I2C configuration
diff --git a/include/configs/hmi1001.h b/include/configs/hmi1001.h
index cfaf153223..45a28c7c49 100644
--- a/include/configs/hmi1001.h
+++ b/include/configs/hmi1001.h
@@ -110,7 +110,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133		/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
 /*
  * I2C configuration
diff --git a/include/configs/inka4x0.h b/include/configs/inka4x0.h
index 773d5d2c1d..ad3cf06e95 100644
--- a/include/configs/inka4x0.h
+++ b/include/configs/inka4x0.h
@@ -147,7 +147,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
 /*
  * Flash configuration
diff --git a/include/configs/mcc200.h b/include/configs/mcc200.h
index f60973b26d..00d2e07e4a 100644
--- a/include/configs/mcc200.h
+++ b/include/configs/mcc200.h
@@ -169,7 +169,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
 /*
  * I2C configuration
diff --git a/include/configs/motionpro.h b/include/configs/motionpro.h
index 5c2b1cdc82..358c380d44 100644
--- a/include/configs/motionpro.h
+++ b/include/configs/motionpro.h
@@ -160,9 +160,9 @@
 
 
 /*
- * Set IPB speed to 100MHz (yes, the #define is misnamed)
+ * Set IPB speed to 100MHz
  */
-#define CFG_IPBSPEED_133
+#define CFG_IPBCLK_EQUALS_XLBCLK
 
 
 /*
diff --git a/include/configs/o2dnt.h b/include/configs/o2dnt.h
index 5c05a745db..63d0da7d09 100644
--- a/include/configs/o2dnt.h
+++ b/include/configs/o2dnt.h
@@ -137,17 +137,17 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
-#if defined(CFG_IPBSPEED_133)
+#if defined(CFG_IPBCLK_EQUALS_XLBCLK)
 /*
  * PCI Bus clocking configuration
  *
  * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
- * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet hasn't
- * been tested with a IPB Bus Clock of 66 MHz.
+ * CFG_IPBCLK_EQUALS_XLBCLK is defined. This is because a PCI Clock
+ *  of 66 MHz yet hasn't been tested with a IPB Bus Clock of 66 MHz.
  */
-#define CFG_PCISPEED_66			/* define for 66MHz speed */
+#define CFG_PCICLK_EQUALS_IPBCLK_DIV2	/* define for 66MHz speed */
 #endif
 #endif
 
@@ -276,7 +276,7 @@
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
 
-#ifdef CFG_PCISPEED_66
+#ifdef CFG_PCICLK_EQUALS_IPBCLK_DIV2
 /*
  * For 66 MHz PCI clock additional Wait State is needed for CS0 (flash).
  */
diff --git a/include/configs/pf5200.h b/include/configs/pf5200.h
index fefdb3cca0..7151a9ec2e 100644
--- a/include/configs/pf5200.h
+++ b/include/configs/pf5200.h
@@ -171,7 +171,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133		/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 #endif
 /*
  * I2C configuration
diff --git a/include/configs/smmaco4.h b/include/configs/smmaco4.h
index e106b3b574..185c2d4870 100644
--- a/include/configs/smmaco4.h
+++ b/include/configs/smmaco4.h
@@ -138,17 +138,17 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
-#if defined(CFG_IPBSPEED_133)
+#if defined(CFG_IPBCLK_EQUALS_XLBCLK)
 /*
  * PCI Bus clocking configuration
  *
  * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
- * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet hasn't
- * been tested with a IPB Bus Clock of 66 MHz.
+ * CFG_IPBCLK_EQUALS_XLBCLK is defined. This is because a PCI Clock
+ * of 66 MHz yet hasn't been tested with a IPB Bus Clock of 66 MHz.
  */
-#define CFG_PCISPEED_66			/* define for 66MHz speed */
+#define CFG_PCICLK_EQUALS_IPBCLK_DIV2	/* define for 66MHz speed */
 #endif
 
 /*
@@ -357,7 +357,7 @@
 
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
-#ifdef CFG_PCISPEED_66
+#ifdef CFG_PCICLK_EQUALS_IPBCLK_DIV2
 #define CFG_BOOTCS_CFG		0x0008DF30 /* for pci_clk  = 66 MHz */
 #else
 #define CFG_BOOTCS_CFG		0x0004DF30 /* for pci_clk = 33 MHz */
diff --git a/include/configs/spieval.h b/include/configs/spieval.h
index f40dde2ac8..fd138a5d17 100644
--- a/include/configs/spieval.h
+++ b/include/configs/spieval.h
@@ -219,17 +219,17 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
-#if defined(CFG_IPBSPEED_133)
+#if defined(CFG_IPBCLK_EQUALS_XLBCLK)
 /*
  * PCI Bus clocking configuration
  *
  * Actually a PCI Clock of 66 MHz is only set (in cpu_init.c) if
- * CFG_IPBSPEED_133 is defined. This is because a PCI Clock of 66 MHz yet hasn't
- * been tested with a IPB Bus Clock of 66 MHz.
+ * CFG_IPBCLK_EQUALS_XLBCLK is defined. This is because a PCI Clock 
+ * of 66 MHz yet hasn't been tested with a IPB Bus Clock of 66 MHz.
  */
-#define CFG_PCISPEED_66			/* define for 66MHz speed */
+#define CFG_PCICLK_EQUALS_IPBCLK_DIV2	/* define for 66MHz speed */
 #endif
 
 /*
@@ -444,7 +444,7 @@
 
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
-#ifdef CFG_PCISPEED_66
+#ifdef CFG_PCICLK_EQUALS_IPBCLK_DIV2
 #define CFG_BOOTCS_CFG		0x0008DF30 /* for pci_clk  = 66 MHz */
 #else
 #define CFG_BOOTCS_CFG		0x0004DF30 /* for pci_clk = 33 MHz */
diff --git a/include/configs/uc101.h b/include/configs/uc101.h
index 8cd8e9be70..ff061eecc8 100644
--- a/include/configs/uc101.h
+++ b/include/configs/uc101.h
@@ -114,7 +114,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#define CFG_IPBSPEED_133		/* define for 133MHz speed */
+#define CFG_IPBCLK_EQUALS_XLBCLK		/* define for 133MHz speed */
 
 /*
  * I2C configuration
diff --git a/include/configs/v38b.h b/include/configs/v38b.h
index e19591d299..0b7b19eada 100644
--- a/include/configs/v38b.h
+++ b/include/configs/v38b.h
@@ -167,7 +167,7 @@
 /*
  * IPB Bus clocking configuration.
  */
-#undef CFG_IPBSPEED_133			/* define for 133MHz speed */
+#undef CFG_IPBCLK_EQUALS_XLBCLK			/* define for 133MHz speed */
 #endif
 
 /*