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How to switch from default aarch32 to aarch64?

Demiahn over 3 years ago

Hello everyone.

I use Cortex-A55(64bit), but the default is 32bit(aarch32), so ARM starts with 32bit mode at booting time.

The following is our booting process what I want.

BootROM(32bit) -> Bootloader(32bit -> 64bit) -> Linux(64bit)

I'd like to switch the 32bit mode to 64bit mode in bootloader level.

Regards,

Demiahn