# This change disables shell access for u-boot by default.
diff -Naru orig/configs/at91sam9x5ek_nandflash_defconfig new/configs/at91sam9x5ek_nandflash_defconfig
--- orig/configs/at91sam9x5ek_nandflash_defconfig	2021-05-22 23:33:29.000000000 +0300
+++ new/configs/at91sam9x5ek_nandflash_defconfig	2021-05-22 23:36:25.946840766 +0300
@@ -3,7 +3,7 @@
 CONFIG_TARGET_AT91SAM9X5EK=y
 CONFIG_SPL=n
 CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9X5,SYS_USE_NANDFLASH"
-CONFIG_BOOTDELAY=0
+CONFIG_BOOTDELAY=-2
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="U-Boot> "
 CONFIG_CMD_BOOTZ=y