diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c
index 1f751372c..988ba9742 100644
--- a/cpu/ppc4xx/speed.c
+++ b/cpu/ppc4xx/speed.c
@@ -165,29 +165,12 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
 		}
 	}
 
+	sysInfo->freqOPB = sysInfo->freqPLB / sysInfo->pllOpbDiv;
 	sysInfo->freqEBC = sysInfo->freqPLB / sysInfo->pllExtBusDiv;
-
 	sysInfo->freqUART = sysInfo->freqProcessor;
 }
 
 
-/********************************************
- * get_OPB_freq
- * return OPB bus freq in Hz
- *********************************************/
-ulong get_OPB_freq (void)
-{
-	ulong val = 0;
-
-	PPC4xx_SYS_INFO sys_info;
-
-	get_sys_info (&sys_info);
-	val = sys_info.freqPLB / sys_info.pllOpbDiv;
-
-	return val;
-}
-
-
 /********************************************
  * get_PCI_freq
  * return PCI bus freq in Hz
@@ -752,14 +735,6 @@ unsigned long determine_pci_clock_per(void)
 }
 #endif
 
-ulong get_OPB_freq (void)
-{
-
-	sys_info_t sys_info;
-	get_sys_info (&sys_info);
-	return sys_info.freqOPB;
-}
-
 #elif defined(CONFIG_XILINX_405)
 extern void get_sys_info (sys_info_t * sysInfo);
 extern ulong get_PCI_freq (void);
@@ -874,23 +849,6 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
 }
 
 
-/********************************************
- * get_OPB_freq
- * return OPB bus freq in Hz
- *********************************************/
-ulong get_OPB_freq (void)
-{
-	ulong val = 0;
-
-	PPC4xx_SYS_INFO sys_info;
-
-	get_sys_info (&sys_info);
-	val = sys_info.freqPLB / sys_info.pllOpbDiv;
-
-	return val;
-}
-
-
 /********************************************
  * get_PCI_freq
  * return PCI bus freq in Hz
@@ -914,6 +872,7 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
 	unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ/1000);
 	unsigned long primad_cpudv;
 	unsigned long m;
+	unsigned long plloutb;
 
 	/*
 	 * Read PLL Mode registers
@@ -996,26 +955,16 @@ void get_sys_info (PPC4xx_SYS_INFO * sysInfo)
 	sysInfo->freqPLB = (CONFIG_SYS_CLK_FREQ * m) /
 		sysInfo->pllFwdDiv / sysInfo->pllPlbDiv;
 
+	sysInfo->freqOPB = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) /
+		sysInfo->pllOpbDiv;
+
 	sysInfo->freqEBC = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) /
 		sysInfo->pllExtBusDiv;
 
-	sysInfo->freqUART = sysInfo->freqVCOHz;
-}
-
-/********************************************
- * get_OPB_freq
- * return OPB bus freq in Hz
- *********************************************/
-ulong get_OPB_freq (void)
-{
-	ulong val = 0;
-
-	PPC4xx_SYS_INFO sys_info;
-
-	get_sys_info (&sys_info);
-	val = (CONFIG_SYS_CLK_FREQ * sys_info.pllFbkDiv) / sys_info.pllOpbDiv;
-
-	return val;
+	plloutb = ((CONFIG_SYS_CLK_FREQ * ((cpr_pllc & PLLC_SRC_MASK) ?
+		sysInfo->pllFwdDivB : sysInfo->pllFwdDiv) * sysInfo->pllFbkDiv) /
+		sysInfo->pllFwdDivB);
+	sysInfo->freqUART = plloutb;
 }
 
 #elif defined(CONFIG_405EX)
@@ -1164,22 +1113,6 @@ void get_sys_info (sys_info_t * sysInfo)
 	sysInfo->freqUART = sysInfo->freqPLB;
 }
 
-/********************************************
- * get_OPB_freq
- * return OPB bus freq in Hz
- *********************************************/
-ulong get_OPB_freq (void)
-{
-	ulong val = 0;
-
-	PPC4xx_SYS_INFO sys_info;
-
-	get_sys_info (&sys_info);
-	val = sys_info.freqPLB / sys_info.pllOpbDiv;
-
-	return val;
-}
-
 #endif
 
 int get_clocks (void)
@@ -1231,3 +1164,14 @@ ulong get_bus_freq (ulong dummy)
 
 	return val;
 }
+
+#if !defined(CONFIG_IOP480)
+ulong get_OPB_freq (void)
+{
+	PPC4xx_SYS_INFO sys_info;
+
+	get_sys_info (&sys_info);
+
+	return sys_info.freqOPB;
+}
+#endif
diff --git a/include/configs/acadia.h b/include/configs/acadia.h
index b71010769..2fb48b641 100644
--- a/include/configs/acadia.h
+++ b/include/configs/acadia.h
@@ -225,7 +225,8 @@
  */
 #define	CONFIG_EXTRA_ENV_SETTINGS					\
 	CONFIG_AMCC_DEF_ENV						\
-	CONFIG_AMCC_DEF_ENV_PPC						\
+	CONFIG_AMCC_DEF_ENV_POWERPC					\
+	CONFIG_AMCC_DEF_ENV_PPC_OLD					\
 	CONFIG_AMCC_DEF_ENV_NOR_UPD					\
 	CONFIG_AMCC_DEF_ENV_NAND_UPD					\
 	"kernel_addr=fff10000\0"					\