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    Hi ARM expert,     In ARM V7 RM, I saw " This chapter describes the implementation of the ARM Generic Timer as an OPTIONAL extension to an ARMv7-A or ARMv7-R processor implementation. ". So, I think it...
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    I was reading the ARM architecture reference manual... and thought Is it possible to implement EL3 AArch64 and change it later to EL3 AArch32? How to change is... If I start on cold reset, it will start...