atmel_smc_cs_encode_ncycles
ret = atmel_smc_cs_encode_ncycles(ncycles, 3, 1, 64, &val);
ret = atmel_smc_cs_encode_ncycles(ncycles, 5, 1, 128, &val);
ret = atmel_smc_cs_encode_ncycles(ncycles, 6, 1, 256, &val);
ret = atmel_smc_cs_encode_ncycles(ncycles, 7, 2, 256, &val);