HPC1_ENETX_CTL
.enetx_ctl = HPC1_ENETX_CTL,
status = sq_hpc_read(sc, HPC1_ENETX_CTL);
sq_hpc_write(sc, HPC1_ENETX_CTL, HPC1_ENETX_CTL_ACTIVE);
sq_hpc_write(sc, HPC1_ENETX_CTL,