tree 7af15c666969446e6b24b141048d5edad882101e
parent 197f14cffcc6af58e5464027e347df4d79a6de87
author lauwal01 <lauren.wehrmeister@arm.com> 1561394522 -0500
committer lauwal01 <lauren.wehrmeister@arm.com> 1562076992 -0500

Workaround for Neoverse N1 erratum 1257314

Neoverse N1 erratum 1257314 is a Cat B erratum [1],
present in older revisions of the Neoverse N1 processor core.
The workaround is to set a bit in the implementation defined
CPUACTLR3_EL1 system register, which prevents parallel
execution of divide and square root instructions.

[1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.pjdoc-466751330-10325/index.html

Change-Id: I54f0f40ff9043efee40d51e796b92ed85b394cbb
Signed-off-by: Lauren Wehrmeister <lauren.wehrmeister@arm.com>