Merge with /home/wd/git/u-boot/custodian/u-boot-74xx-7xx

1 files changed, 21 insertions, 4 deletions

diff --git a/lib_ppc/extable.c b/lib_ppc/extable.c
index d92f142..fe856ff 100644
--- a/lib_ppc/extable.c
+++ b/lib_ppc/extable.c
@@ -37,6 +37,8 @@
  * on our cache or tlb entries.
  */
 
+DECLARE_GLOBAL_DATA_PTR;
+
 struct exception_table_entry
 {
 	unsigned long insn, fixup;
@@ -55,10 +57,22 @@ search_one_table(const struct exception_table_entry *first,
 		long diff;
 
 		mid = (last - first) / 2 + first;
-		diff = mid->insn - value;
-		if (diff == 0)
-			return mid->fixup;
-		else if (diff < 0)
+		if (mid > CFG_MONITOR_BASE) {
+		/* exception occurs in FLASH, before u-boot relocation.
+		 * No relocation offset is needed.
+		 */
+			diff = mid->insn - value;
+			if (diff == 0)
+				return mid->fixup;
+		} else {
+		/* exception occurs in RAM, after u-boot relocation.
+		 * A relocation offset should be added.
+		 */
+			diff = (mid->insn + gd->reloc_off) - value;
+			if (diff == 0)
+				return (mid->fixup + gd->reloc_off);
+		}
+		if (diff < 0)
 			first = mid+1;
 		else
 			last = mid-1;
@@ -75,8 +89,11 @@ search_exception_table(unsigned long addr)
 
 	/* There is only the kernel to search.  */
 	ret = search_one_table(__start___ex_table, __stop___ex_table-1, addr);
+	/* if the serial port does not hang in exception, printf can be used */
+#if !defined(CFG_SERIAL_HANG_IN_EXCEPTION)
 	if (ex_tab_message)
 		printf("Bus Fault @ 0x%08lx, fixup 0x%08lx\n", addr, ret);
+#endif
 	if (ret) return ret;
 
 	return 0;