siemens,at91: enable features for smartweb

New features for smartweb:
* switch to hush command parser
* change autoboot stop to <ESC><ESC>
* allow to write ethaddr

Signed-off-by: Matthias Michel <matthias.michel@siemens.com>
Reviewed-by: Samuel Egli <samuel.egli@siemens.com>
Cc: Roger Meier <r.meier@siemens.com>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>

configs/smartweb_defconfig

@@ -3,4 +3,7 @@ CONFIG_ARCH_AT91=y
 CONFIG_TARGET_SMARTWEB=y
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9260"
-CONFIG_SYS_PROMPT="U-Boot> "
+CONFIG_SYS_PROMPT="U-Boot# "
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_PROMPT="Autobooting in %d seconds, press \"<Esc><Esc>\" to stop\n"
+CONFIG_AUTOBOOT_STOP_STR="\x1b\x1b"

include/configs/smartweb.h

@@ -49,10 +49,18 @@
 #define CONFIG_BOARD_EARLY_INIT_F	/* call board_early_init_f() */
 #define CONFIG_DISPLAY_CPUINFO		/* display CPU Info at startup */
 
+/* We set the max number of command args high to avoid HUSH bugs. */
+#define CONFIG_SYS_MAXARGS    32
+
 /* setting board specific options */
-# define CONFIG_MACH_TYPE		MACH_TYPE_SMARTWEB
-#define CONFIG_CMDLINE_EDITING
+#define CONFIG_MACH_TYPE		MACH_TYPE_SMARTWEB
+#define CONFIG_AUTO_COMPLETE
+#define CONFIG_ENV_OVERWRITE    1 /* Overwrite ethaddr / serial# */
+#define CONFIG_SYS_HUSH_PARSER    /* use "hush" command parser */
+#define CONFIG_SYS_PROMPT_HUSH_PS2  "> "
 #define CONFIG_AUTO_COMPLETE
+#define CONFIG_SYS_AUTOLOAD "yes"
+#define CONFIG_RESET_TO_RETRY
 
 /* The LED PINs */
 #define CONFIG_RED_LED			AT91_PIN_PA9
@@ -184,9 +192,7 @@
 /* General Boot Parameter */
 #define CONFIG_BOOTDELAY		3
 #define CONFIG_BOOTCOMMAND		"run flashboot"
-#define CONFIG_BOOT_RETRY_TIME          30
 #define CONFIG_SYS_CBSIZE		512
-#define CONFIG_SYS_MAXARGS		16
 #define CONFIG_SYS_PBSIZE \
 	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
 #define CONFIG_SYS_LONGHELP