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Could anybody tell me how to boot up a processor in AARCH32 bit mode in Arm V8 and A53 core?

can you please tell me how to boot up a processor in 32 bit mode for Armv8, A53 core using baremetal code?

how can i know it is booted in 32bit mode?

Thanks.

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Martin Weidmann over 7 years ago +2 verified

When the A53 comes out of reset, the initial Execution state (AArch32 or AArch64) is controlled by a signal AA64nAA32 http://infocenter.arm.com/help/topic/com.arm.doc.ddi0500g/BABJAGDF.html This sets...

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0 42Bastian Schick over 7 years ago in reply to RanadeepReddy

Check you SoC description if the signal is available. If not, just boot in AArch64 and switch.
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0 42Bastian Schick over 7 years ago in reply to RanadeepReddy

Check you SoC description if the signal is available. If not, just boot in AArch64 and switch.
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