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PL310 cache synchronization

Hi !

I am working with the PL310 L2 cache controller and I have a question about the "Cache Synchro" maintenance operation.

- when I want to perform a synchronization, should I just wait for bit 0 (bit C) of the Cache Synchro register to be 0

  or should I write 0 to it before waiting ?

- when performing a "Broadcast" operation, like Invalidate by Way, the doc states to wait for the bits in the Invalidate by way

  register to be all 0's. Should I wait for Cache Synchro too ?

Best,

V.

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