tree 2cd2ec4261027f7bf9e5a64baeeb38a0138b464c
parent 87e1d28359de248dce8d3b2d533fd32c9842baef
author Bipin Ravi <bipin.ravi@arm.com> 1630346571 -0500
committer Bipin Ravi <bipin.ravi@arm.com> 1630701896 -0500

errata: workaround for Neoverse N2 erratum 2189731

Neoverse N2 erratum 2189731 is a Cat B erratum that applies to
revision r0p0 and is still open. The workaround is to set
CPUACTLR5_EL1[44] to 1 which will cause the CPP instruction to
invalidate the hardware prefetcher state trained from any EL.

SDEN can be found here:
https://developer.arm.com/documentation/SDEN1982442/latest

Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>
Change-Id: Iddc6a59adf9fa3cab560c46f2133e1f5a8b3ad03