1 // SPDX-License-Identifier: GPL-2.0-only
5  *  Author: Boris BREZILLON <boris.brezillon@free-electrons.com>
16  * For non-ONFI chips we use the highest possible value for tPROG and tBERS.
48 			.tIR_min = 10000,
78 			.tALH_min = 10000,
80 			.tAR_min = 10000,
83 			.tCH_min = 10000,
85 			.tCLH_min = 10000,
86 			.tCLR_min = 10000,
90 			.tDH_min = 10000,
123 			.tALH_min = 10000,
125 			.tAR_min = 10000,
128 			.tCH_min = 10000,
130 			.tCLH_min = 10000,
131 			.tCLR_min = 10000,
169 			.tALS_min = 10000,
170 			.tAR_min = 10000,
176 			.tCLR_min = 10000,
177 			.tCLS_min = 10000,
181 			.tDS_min = 10000,
187 			.tREH_min = 10000,
197 			.tWH_min = 10000,
214 			.tALS_min = 10000,
215 			.tAR_min = 10000,
221 			.tCLR_min = 10000,
222 			.tCLS_min = 10000,
226 			.tDS_min = 10000,
232 			.tREH_min = 10000,
242 			.tWH_min = 10000,
259 			.tALS_min = 10000,
260 			.tAR_min = 10000,
266 			.tCLR_min = 10000,
267 			.tCLS_min = 10000,
282 			.tRP_min = 10000,
289 			.tWP_min = 10000,
309 			.tCAH_min = 10000,
310 			.tCALH_min = 10000,
311 			.tCALS_min = 10000,
312 			.tCAS_min = 10000,
314 			.tCH_min = 10000,
491 			.tDQSQ_max = 1000,
525 			.tCK_min = 10000,
535 			.tDSC_min = 10000,
538 			.tQHS_max = 1000,
557  * onfi_find_closest_sdr_mode - Derive the closest ONFI SDR timing mode given a
567 	for (mode = ARRAY_SIZE(onfi_sdr_timings) - 1; mode > 0; mode--) {  in onfi_find_closest_sdr_mode()
570 		if (spec_timings->tCCS_min <= onfi_timings->tCCS_min &&  in onfi_find_closest_sdr_mode()
571 		    spec_timings->tADL_min <= onfi_timings->tADL_min &&  in onfi_find_closest_sdr_mode()
572 		    spec_timings->tALH_min <= onfi_timings->tALH_min &&  in onfi_find_closest_sdr_mode()
573 		    spec_timings->tALS_min <= onfi_timings->tALS_min &&  in onfi_find_closest_sdr_mode()
574 		    spec_timings->tAR_min <= onfi_timings->tAR_min &&  in onfi_find_closest_sdr_mode()
575 		    spec_timings->tCEH_min <= onfi_timings->tCEH_min &&  in onfi_find_closest_sdr_mode()
576 		    spec_timings->tCH_min <= onfi_timings->tCH_min &&  in onfi_find_closest_sdr_mode()
577 		    spec_timings->tCLH_min <= onfi_timings->tCLH_min &&  in onfi_find_closest_sdr_mode()
578 		    spec_timings->tCLR_min <= onfi_timings->tCLR_min &&  in onfi_find_closest_sdr_mode()
579 		    spec_timings->tCLS_min <= onfi_timings->tCLS_min &&  in onfi_find_closest_sdr_mode()
580 		    spec_timings->tCOH_min <= onfi_timings->tCOH_min &&  in onfi_find_closest_sdr_mode()
581 		    spec_timings->tCS_min <= onfi_timings->tCS_min &&  in onfi_find_closest_sdr_mode()
582 		    spec_timings->tDH_min <= onfi_timings->tDH_min &&  in onfi_find_closest_sdr_mode()
583 		    spec_timings->tDS_min <= onfi_timings->tDS_min &&  in onfi_find_closest_sdr_mode()
584 		    spec_timings->tIR_min <= onfi_timings->tIR_min &&  in onfi_find_closest_sdr_mode()
585 		    spec_timings->tRC_min <= onfi_timings->tRC_min &&  in onfi_find_closest_sdr_mode()
586 		    spec_timings->tREH_min <= onfi_timings->tREH_min &&  in onfi_find_closest_sdr_mode()
587 		    spec_timings->tRHOH_min <= onfi_timings->tRHOH_min &&  in onfi_find_closest_sdr_mode()
588 		    spec_timings->tRHW_min <= onfi_timings->tRHW_min &&  in onfi_find_closest_sdr_mode()
589 		    spec_timings->tRLOH_min <= onfi_timings->tRLOH_min &&  in onfi_find_closest_sdr_mode()
590 		    spec_timings->tRP_min <= onfi_timings->tRP_min &&  in onfi_find_closest_sdr_mode()
591 		    spec_timings->tRR_min <= onfi_timings->tRR_min &&  in onfi_find_closest_sdr_mode()
592 		    spec_timings->tWC_min <= onfi_timings->tWC_min &&  in onfi_find_closest_sdr_mode()
593 		    spec_timings->tWH_min <= onfi_timings->tWH_min &&  in onfi_find_closest_sdr_mode()
594 		    spec_timings->tWHR_min <= onfi_timings->tWHR_min &&  in onfi_find_closest_sdr_mode()
595 		    spec_timings->tWP_min <= onfi_timings->tWP_min &&  in onfi_find_closest_sdr_mode()
596 		    spec_timings->tWW_min <= onfi_timings->tWW_min)  in onfi_find_closest_sdr_mode()
604  * onfi_find_closest_nvddr_mode - Derive the closest ONFI NVDDR timing mode
614 	for (mode = ARRAY_SIZE(onfi_nvddr_timings) - 1; mode > 0; mode--) {  in onfi_find_closest_nvddr_mode()
617 		if (spec_timings->tCCS_min <= onfi_timings->tCCS_min &&  in onfi_find_closest_nvddr_mode()
618 		    spec_timings->tAC_min <= onfi_timings->tAC_min &&  in onfi_find_closest_nvddr_mode()
619 		    spec_timings->tADL_min <= onfi_timings->tADL_min &&  in onfi_find_closest_nvddr_mode()
620 		    spec_timings->tCAD_min <= onfi_timings->tCAD_min &&  in onfi_find_closest_nvddr_mode()
621 		    spec_timings->tCAH_min <= onfi_timings->tCAH_min &&  in onfi_find_closest_nvddr_mode()
622 		    spec_timings->tCALH_min <= onfi_timings->tCALH_min &&  in onfi_find_closest_nvddr_mode()
623 		    spec_timings->tCALS_min <= onfi_timings->tCALS_min &&  in onfi_find_closest_nvddr_mode()
624 		    spec_timings->tCAS_min <= onfi_timings->tCAS_min &&  in onfi_find_closest_nvddr_mode()
625 		    spec_timings->tCEH_min <= onfi_timings->tCEH_min &&  in onfi_find_closest_nvddr_mode()
626 		    spec_timings->tCH_min <= onfi_timings->tCH_min &&  in onfi_find_closest_nvddr_mode()
627 		    spec_timings->tCK_min <= onfi_timings->tCK_min &&  in onfi_find_closest_nvddr_mode()
628 		    spec_timings->tCS_min <= onfi_timings->tCS_min &&  in onfi_find_closest_nvddr_mode()
629 		    spec_timings->tDH_min <= onfi_timings->tDH_min &&  in onfi_find_closest_nvddr_mode()
630 		    spec_timings->tDQSCK_min <= onfi_timings->tDQSCK_min &&  in onfi_find_closest_nvddr_mode()
631 		    spec_timings->tDQSD_min <= onfi_timings->tDQSD_min &&  in onfi_find_closest_nvddr_mode()
632 		    spec_timings->tDS_min <= onfi_timings->tDS_min &&  in onfi_find_closest_nvddr_mode()
633 		    spec_timings->tDSC_min <= onfi_timings->tDSC_min &&  in onfi_find_closest_nvddr_mode()
634 		    spec_timings->tRHW_min <= onfi_timings->tRHW_min &&  in onfi_find_closest_nvddr_mode()
635 		    spec_timings->tRR_min <= onfi_timings->tRR_min &&  in onfi_find_closest_nvddr_mode()
636 		    spec_timings->tWHR_min <= onfi_timings->tWHR_min &&  in onfi_find_closest_nvddr_mode()
637 		    spec_timings->tWRCK_min <= onfi_timings->tWRCK_min &&  in onfi_find_closest_nvddr_mode()
638 		    spec_timings->tWW_min <= onfi_timings->tWW_min)  in onfi_find_closest_nvddr_mode()
646  * onfi_fill_sdr_interface_config - Initialize a SDR interface config from a
656 	struct onfi_params *onfi = chip->parameters.onfi;  in onfi_fill_sdr_interface_config()
669 		struct nand_sdr_timings *timings = &iface->timings.sdr;  in onfi_fill_sdr_interface_config()
671 		/* microseconds -> picoseconds */  in onfi_fill_sdr_interface_config()
672 		timings->tPROG_max = 1000000ULL * onfi->tPROG;  in onfi_fill_sdr_interface_config()
673 		timings->tBERS_max = 1000000ULL * onfi->tBERS;  in onfi_fill_sdr_interface_config()
674 		timings->tR_max = 1000000ULL * onfi->tR;  in onfi_fill_sdr_interface_config()
676 		/* nanoseconds -> picoseconds */  in onfi_fill_sdr_interface_config()
677 		timings->tCCS_min = 1000UL * onfi->tCCS;  in onfi_fill_sdr_interface_config()
682  * onfi_fill_nvddr_interface_config - Initialize a NVDDR interface config from a
692 	struct onfi_params *onfi = chip->parameters.onfi;  in onfi_fill_nvddr_interface_config()
705 		struct nand_nvddr_timings *timings = &iface->timings.nvddr;  in onfi_fill_nvddr_interface_config()
707 		/* microseconds -> picoseconds */  in onfi_fill_nvddr_interface_config()
708 		timings->tPROG_max = 1000000ULL * onfi->tPROG;  in onfi_fill_nvddr_interface_config()
709 		timings->tBERS_max = 1000000ULL * onfi->tBERS;  in onfi_fill_nvddr_interface_config()
710 		timings->tR_max = 1000000ULL * onfi->tR;  in onfi_fill_nvddr_interface_config()
712 		/* nanoseconds -> picoseconds */  in onfi_fill_nvddr_interface_config()
713 		timings->tCCS_min = 1000UL * onfi->tCCS;  in onfi_fill_nvddr_interface_config()
715 		if (onfi->fast_tCAD)  in onfi_fill_nvddr_interface_config()
716 			timings->tCAD_min = 25000;  in onfi_fill_nvddr_interface_config()
721  * onfi_fill_interface_config - Initialize an interface config from a given