History: The last armv7/AArch32 EL0..EL3 capable Cortex-A??'s ?
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Date: Tue, 16 Jan 2024 00:30:15 UTC
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