Hi,

I have a pi4 running u-boot 2019.01. When I use the following config options

``` CONFIG_AUTOBOOT=y # CONFIG_AUTOBOOT_KEYED is not set ```

CTRL-C would continue to interrupt autoboot. Was quite surprised to see that.

Took a look at the code. https://github.com/u-boot/u-boot/blob/master/common/autoboot.c#L367-L375

``` lock = IS_ENABLED(CONFIG_AUTOBOOT_KEYED) && !IS_ENABLED(CONFIG_AUTOBOOT_KEYED_CTRLC); if (lock) prev = disable_ctrlc(1); /* disable Ctrl-C checking */ ```

So if `CONFIG_AUTOBOOT_KEYED=y` and `CONFIG_AUTOBOOT_KEYED_CTRLC=N`, then disable ctrl-c checking.

That means if we disable `CONFIG_AUTOBOOT_KEYED`, we can still end up with ctrl-c checking?

Why is Ctrl-C checking default ON instead of being enabled only when `CONFIG_AUTOBOOT_KEYED_CTRLC=y`

Am I missing something here?

Thanks ZubairLK