Does R52/R52+ support thumb-2 ?

Hmm, odd - the forums seem to have lost my answer.  Oh well.

Short answer - yes

Cortex-R52 implements Armv8-R AArch32.  Armv8-R introduced a new naming convention, A32 and T32 instead of ARM and Thumb.  Which is why in the Cortex-R52 documentation you will usually see A32/T32 referred to.

Whether a processor supports "Thumb-2 technology" is reported in ID_PFR0.State1:

https://developer.arm.com/documentation/100026/0104/System-Control/AArch32-register-descriptions/Processor-Feature-Register-0

Hmm, odd - the forums seem to have lost my answer.  Oh well.

Short answer - yes

Cortex-R52 implements Armv8-R AArch32.  Armv8-R introduced a new naming convention, A32 and T32 instead of ARM and Thumb.  Which is why in the Cortex-R52 documentation you will usually see A32/T32 referred to.

Whether a processor supports "Thumb-2 technology" is reported in ID_PFR0.State1:

https://developer.arm.com/documentation/100026/0104/System-Control/AArch32-register-descriptions/Processor-Feature-Register-0