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The L1 data cache flush needs to be after highbank_set_cpu_jump call which pollutes the cache with the l2x0_lock. This causes other cores to deadlock waiting for the l2x0_lock. Moving the flush of the entire data cache after highbank_set_cpu_jump fixes the problem. Use flush_cache_louis instead of flush_cache_all are that is sufficient to flush only the L1 data cache. flush_cache_louis did not exist when highbank_cpu_die was originally written. With PL310 errata 769419 enabled, a wmb is inserted into idle which takes the l2x0_lock. This makes the problem much more easily hit and causes reset to hang. Reported-by: Paolo Pisati <p.pisati@gmail.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Olof Johansson <olof@lixom.net>