AT91: fix TOP9000 build problem and change CONFIG_SYS_TEXT_BASE

Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
diff --git a/include/configs/top9000.h b/include/configs/top9000.h
index ff3933b..0b23a5d 100644
--- a/include/configs/top9000.h
+++ b/include/configs/top9000.h
@@ -40,9 +40,9 @@
 
 /*
  * Warning: changing CONFIG_SYS_TEXT_BASE requires
- * adapting the initial boot program
+ * adapting the initial boot program.
  */
-#define CONFIG_SYS_TEXT_BASE		0x21f00000	/* 31 MB into RAM */
+#define CONFIG_SYS_TEXT_BASE		0x20000000	/* start of SDRAM */
 
 /* Command line configuration */
 #include <config_cmd_default.h>