tree 0f2904e669946cb7dde1978af6130fbf21d55533
parent 9881bb93a3bc0a3ea37e9f093e09ab4b360a9e48
author Harrison Mutai <harrison.mutai@arm.com> 1668175795 +0000
committer Varun Wadekar <vwadekar@nvidia.com> 1675443903 +0000

fix(cpus): workaround for Cortex-X3 erratum 2615812

Cortex-X3 erratum 2615812 is a Cat B erratum that applies to revisions
r0p0, r1p0, and r1p1, and is still open. 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 CORTEX_X3_IMP_CPUPWRCTLR_EL1 to 0b000).

SDEN can be found here:
https://developer.arm.com/documentation/SDEN2055130/latest

Change-Id: I5ad66df3e18fc85a6b23f6662239494ee001d82f
Signed-off-by: Harrison Mutai <harrison.mutai@arm.com>
(cherry picked from commit c7e698cfdedbe2b1c8212dd71477f289f7644953)