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CPU isn't allowed to touch secure registers while running under secure monitor. Hence skip applying of CPU erratas in the reset handler if Trusted Foundations firmware presents. Partially based on work done by Michał Mirosław [1]. [1] https://www.spinics.net/lists/arm-kernel/msg594768.html Tested-by: Robert Yang <decatf@gmail.com> Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>