[ppc] Fix build breakage for all non-4xx PowerPC variants.

- adapt to the more generic EXCEPTION_PROLOG and CRIT_EXCEPTION macros
- minor 4xx cleanup
diff --git a/include/74xx_7xx.h b/include/74xx_7xx.h
index ba73bae..4a03cec 100644
--- a/include/74xx_7xx.h
+++ b/include/74xx_7xx.h
@@ -34,6 +34,7 @@
  * Exception offsets (PowerPC standard)
  */
 #define EXC_OFF_SYS_RESET        0x0100      /* default system reset offset */
+#define _START_OFFSET		EXC_OFF_SYS_RESET
 
 /*----------------------------------------------------------------
  * l2cr values
diff --git a/include/mpc5xx.h b/include/mpc5xx.h
index 7508f6d..e9b08a0 100644
--- a/include/mpc5xx.h
+++ b/include/mpc5xx.h
@@ -36,6 +36,7 @@
  * Exception offsets (PowerPC standard)
  */
 #define EXC_OFF_SYS_RESET	0x0100	/* System reset				*/
+#define _START_OFFSET		EXC_OFF_SYS_RESET
 
 /*-----------------------------------------------------------------------
  * ISB bit in IMMR to set internal memory map
diff --git a/include/mpc5xxx.h b/include/mpc5xxx.h
index 089aa13..a4581a3 100644
--- a/include/mpc5xxx.h
+++ b/include/mpc5xxx.h
@@ -39,6 +39,7 @@
 
 /* Exception offsets (PowerPC standard) */
 #define EXC_OFF_SYS_RESET	0x0100
+#define _START_OFFSET		EXC_OFF_SYS_RESET
 
 /* useful macros for manipulating CSx_START/STOP */
 #if defined(CONFIG_MGT5100)
diff --git a/include/mpc8220.h b/include/mpc8220.h
index ff7acc6..d3b1457 100644
--- a/include/mpc8220.h
+++ b/include/mpc8220.h
@@ -35,6 +35,7 @@
 
 /* Exception offsets (PowerPC standard) */
 #define EXC_OFF_SYS_RESET   0x0100
+#define _START_OFFSET	EXC_OFF_SYS_RESET
 
 /* Internal memory map */
 /* MPC8220 Internal Register MMAP */
diff --git a/include/mpc824x.h b/include/mpc824x.h
index 30fc795..4bd8863 100644
--- a/include/mpc824x.h
+++ b/include/mpc824x.h
@@ -142,6 +142,8 @@
 #define EXC_OFF_JMDDI		0x1600	/* Java Mode denorm detect Interr -- WTF??*/
 #define EXC_OFF_RMTE		0x2000	/* Run Mode or Trace Exception */
 
+#define _START_OFFSET		EXC_OFF_SYS_RESET
+
 #define MAP_A_CONFIG_ADDR_HIGH	0x8000	/* Upper half of CONFIG_ADDR for Map A */
 #define MAP_A_CONFIG_ADDR_LOW	0x0CF8	/* Lower half of CONFIG_ADDR for Map A */
 #define MAP_A_CONFIG_DATA_HIGH	0x8000	/* Upper half of CONFIG_DAT for Map A */
diff --git a/include/mpc8260.h b/include/mpc8260.h
index d9dd92d..b61218c 100644
--- a/include/mpc8260.h
+++ b/include/mpc8260.h
@@ -53,7 +53,7 @@
  * Exception offsets (PowerPC standard)
  */
 #define EXC_OFF_SYS_RESET	0x0100	/* System reset			*/
-
+#define _START_OFFSET		EXC_OFF_SYS_RESET
 
 /*-----------------------------------------------------------------------
  * BCR - Bus Configuration Register					 4-25
diff --git a/include/mpc83xx.h b/include/mpc83xx.h
index 60fc214..cbf41c3 100644
--- a/include/mpc83xx.h
+++ b/include/mpc83xx.h
@@ -25,6 +25,7 @@
 /* System reset offset (PowerPC standard)
  */
 #define EXC_OFF_SYS_RESET		0x0100
+#define	_START_OFFSET			EXC_OFF_SYS_RESET
 
 /* IMMRBAR - Internal Memory Register Base Address
  */
diff --git a/include/mpc85xx.h b/include/mpc85xx.h
index a4d99b2..6fbd504 100644
--- a/include/mpc85xx.h
+++ b/include/mpc85xx.h
@@ -8,6 +8,7 @@
 #define __MPC85xx_H__
 
 #define EXC_OFF_SYS_RESET	0x0100	/* System reset	*/
+#define	_START_OFFSET		EXC_OFF_SYS_RESET
 
 #if defined(CONFIG_E500)
 #include <e500.h>
diff --git a/include/mpc86xx.h b/include/mpc86xx.h
index 673bfed..9fd349a 100644
--- a/include/mpc86xx.h
+++ b/include/mpc86xx.h
@@ -8,7 +8,7 @@
 #define __MPC86xx_H__
 
 #define EXC_OFF_SYS_RESET	0x0100	/* System reset	offset */
-
+#define _START_OFFSET		EXC_OFF_SYS_RESET
 
 /*
  * platform register addresses
diff --git a/include/mpc8xx.h b/include/mpc8xx.h
index 2911758..1130598 100644
--- a/include/mpc8xx.h
+++ b/include/mpc8xx.h
@@ -35,7 +35,7 @@
  * Exception offsets (PowerPC standard)
  */
 #define EXC_OFF_SYS_RESET	0x0100	/* System reset				*/
-
+#define _START_OFFSET		EXC_OFF_SYS_RESET
 
 /*-----------------------------------------------------------------------
  * SYPCR - System Protection Control Register				11-9
diff --git a/include/ppc4xx.h b/include/ppc4xx.h
index 8cead66..ca241d2 100644
--- a/include/ppc4xx.h
+++ b/include/ppc4xx.h
@@ -22,7 +22,8 @@
 #ifndef	__PPC4XX_H__
 #define __PPC4XX_H__
 
-#define _START_OFFSET 0x2100
+#define EXC_OFF_SYS_RESET	0x0100	/* System reset				*/
+#define _START_OFFSET		(EXC_OFF_SYS_RESET + 0x2000)
 
 #if defined(CONFIG_440)
 #include <ppc440.h>
diff --git a/include/ppc_asm.tmpl b/include/ppc_asm.tmpl
index ad027d6..9f4029f 100644
--- a/include/ppc_asm.tmpl
+++ b/include/ppc_asm.tmpl
@@ -274,7 +274,7 @@
 #define CRIT_EXCEPTION(n, label, hdlr)				\
 	. = n;							\
 label:								\
-	EXCEPTION_PROLOG(csrr0, csrr1);				\
+	EXCEPTION_PROLOG(CSRR0, CSRR1);				\
 	lwz	r3,GOT(transfer_to_handler);			\
 	mtlr	r3;						\
 	addi	r3,r1,STACK_FRAME_OVERHEAD;			\