MPI_L2PIOREMAP_REG
val = bcm_mpi_readl(MPI_L2PIOREMAP_REG);
bcm_mpi_writel(val, MPI_L2PIOREMAP_REG);
bcm_mpi_writel(val | MPI_L2PREMAP_ENABLED_MASK, MPI_L2PIOREMAP_REG);