From what I can read in the documentation for the chip, it is an: “Inside Secure SafeXcel-IP-97”, also known as EIP97. Inside Secure seems to call it PacketEngine-IP-97 on their website.
It looks like the one seen from a mediatek driver “drivers/crypto/mediatek/mtk-platform.c” (compatible = “mediatek,eip97-crypto”), which recently entered mainline, but I haven’t had time (or need) to test it yet for the Armada 37×0 chips.
