tree 480e90962537e14153853b0d0ce5746880bffe6c
parent 4b46c784ca5818b64e460054a422ec01429fc500
author Bipin Ravi <bipin.ravi@arm.com> 1697589735 -0500
committer Bipin Ravi <bipin.ravi@arm.com> 1701293726 -0600

fix(cpus): workaround for Neoverse V2 erratum 2618597

Neoverse V2 erratum 2618597 is a Cat B erratum that applies to
all revisions <= r0p1 and is fixed in r0p2. The workaround is to
disable the use of the Full Retention power mode in the core (setting
WFI_RET_CTRL and WFE_RET_CTRL in IMP_CPUPWRCTLR_EL1 to 0b000).

SDEN can be found here:
https://developer.arm.com/documentation/SDEN-2332927/latest

Change-Id: I23a81275d1e40cae39e6897093d6cdd3e11c08ea
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>