B.1.4 Initializing the Command queue

Software must initialize the Command queue by enabling it and checking that the enable operation is complete.

To initialize the Command queue, ensure that your software performs the following steps:


  1. Enable the Command queue by setting the SMMU_S_CR0.CMDQEN bit to 1.
  2. Check that the enable operation is complete by polling SMMU_S_CR0ACK until CMDQEN reads as 1.
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