History: The last armv7/AArch32 EL0..EL3 capable Cortex-A??'s ?

Mark Millard <[email protected]>
Newsgroups gmane.os.freebsd.devel.arm
Message-ID <[email protected]>
In a multi-list discussion a reference was made to the
last armv7 designs being from 2014. I had a vague
recollection that the date did not span all the AArch32
EL0..EL3 capable hardware (that are also AArch64 capable)
So I went looking . . . (Not that such detail changes
the point made by much.)

It appears that the last released AArch32 EL0..EL3
capable Cortex-A??'s are probably:

Cortex-A55 r0p0 2016-Sept-30, r1p0 (public release) 2017-June-23, r2p0 2018-Nov-30
Cortex-A75 r0p0 2016-Sept-30, r2p0 (public release) 2017-June-03, r3p1 2018-Jul-27

(I've used the first Document History date for each r?p?
above but have only listed the first Confidential, the first
Non-Confidential, and the most recent r?p? dates.)

More, later Cortex-A??/A??? hardware supports just EL0 for
AArch32. But such is not able to boot AArch32 directly.

(There appear to be some X-Gene EL0..EL2 AArch32 capable
hardware and a EL0..EL3 as well. But I basically limited
myself to the easier to check Cortex-A* family, depending
on other's analysis that I'm familiar, with a little
looking at ARM documents as well.)

===
Mark Millard
marklmi at yahoo.com
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