tree 810baf588884aeefeacd587907d5fbe632d690be
parent ac998032fe800301dc943a193690b51b2921478c
author Antonio Nino Diaz <antonio.ninodiaz@arm.com> 1487936362 +0000
committer Antonio Nino Diaz <antonio.ninodiaz@arm.com> 1488984027 +0000

Apply workaround for errata 813419 of Cortex-A57

TLBI instructions for EL3 won't have the desired effect under specific
circumstances in Cortex-A57 r0p0. The workaround is to execute DSB and
TLBI twice each time.

Even though this errata is only needed in r0p0, the current errata
framework is not prepared to apply run-time workarounds. The current one
is always applied if compiled in, regardless of the CPU or its revision.

This errata has been enabled for Juno.

The `DSB` instruction used when initializing the translation tables has
been changed to `DSB ISH` as an optimization and to be consistent with
the barriers used for the workaround.

Change-Id: Ifc1d70b79cb5e0d87e90d88d376a59385667d338
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>