Fix some bugs in TRAB board flash driver.
- increase CFG_FLASH_ERASE_TOUT from 2 to 15 seconds
- use CFG_FLASH_WRITE_TOUT for programming instead of CFG_FLASH_ERASE_TOUT
- remove "Unlock Bypass" mode, because macronix flashes do not support
  this mode officially
- fix flash reset command from 0x00FF to 0x00F0. 0x00FF is only specified
  for Intel compatible flashes, not for AMD compatible.
Patch by Martin Krause, 15 Feb 2006
diff --git a/include/configs/trab.h b/include/configs/trab.h
index 8f71acf..a2dc8e7 100644
--- a/include/configs/trab.h
+++ b/include/configs/trab.h
@@ -402,7 +402,7 @@
 #endif
 
 /* timeout values are in ticks */
-#define CFG_FLASH_ERASE_TOUT	(2*CFG_HZ) /* Timeout for Flash Erase */
+#define CFG_FLASH_ERASE_TOUT	(15*CFG_HZ) /* Timeout for Flash Erase */
 #define CFG_FLASH_WRITE_TOUT	(2*CFG_HZ) /* Timeout for Flash Write */
 
 #define	CFG_ENV_IS_IN_FLASH	1