diff options
Diffstat (limited to 'cmd/Kconfig')
| -rw-r--r-- | cmd/Kconfig | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/cmd/Kconfig b/cmd/Kconfig index 16cb5c2956..22a3737b4e 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -101,7 +101,14 @@ config AUTOBOOT_PROMPT config AUTOBOOT_ENCRYPTION bool "Enable encryption in autoboot stopping" depends on AUTOBOOT_KEYED - default n + help + This option allows a string to be entered into U-Boot to stop the + autoboot. The string itself is hashed and compared against the hash + in the environment variable 'bootstopkeysha256'. If it matches then + boot stops and a command-line prompt is presented. + + This provides a way to ship a secure production device which can also + be accessed at the U-Boot command line. config AUTOBOOT_DELAY_STR string "Delay autobooting via specific input key / string" @@ -146,6 +153,31 @@ config AUTOBOOT_STOP_STR_SHA256 string / password matches a values that is encypted via a SHA256 hash and saved in the environment. +config AUTOBOOT_USE_MENUKEY + bool "Allow a specify key to run a menu from the environment" + depends on !AUTOBOOT_KEYED + help + If a specific key is pressed to stop autoboot, then the commands in + the environment variable 'menucmd' are executed before boot starts. + +config AUTOBOOT_MENUKEY + int "ASCII value of boot key to show a menu" + default 0 + depends on AUTOBOOT_USE_MENUKEY + help + If this key is pressed to stop autoboot, then the commands in the + environment variable 'menucmd' will be executed before boot starts. + For example, 33 means "!" in ASCII, so pressing ! at boot would take + this action. + +config AUTOBOOT_MENU_SHOW + bool "Show a menu on boot" + help + This enables the boot menu, controlled by environment variables + defined by the board. The menu starts after running the 'preboot' + environmnent variable (if enabled) and before handling the boot delay. + See README.bootmenu for more details. + endmenu config BUILD_BIN2C |