tree 745016c2e861c96b996134063f2a4655b3d64b4a
parent 7061d07a9cb689de89aed7c4251c9f97f583ba13
author Bipin Ravi <bipin.ravi@arm.com> 1712781201 -0500
committer Bipin Ravi <bipin.ravi@arm.com> 1713465565 -0500

fix(cpus): workaround for Cortex-X4 erratum 2740089

Cortex-X4 erratum 2740089 is a Cat B erratum that applies to
all revisions <=r0p1 and is fixed in r0p2. The workaround is to
insert a dsb before the isb in the power down sequence.

SDEN documentation:
https://developer.arm.com/documentation/SDEN2432808/latest

Change-Id: I1d0fa4dd383437044a4467591f65a4a8514cabdc
Signed-off-by: Bipin Ravi <bipin.ravi@arm.com>