nand/raw/cadence-nand-controller.c

2355 	const struct nand_sdr_timings *sdr;
2376 	sdr = nand_get_sdr_timings(conf);
2377 	if (IS_ERR(sdr))
2378 		return PTR_ERR(sdr);
2390 	tdvw_min = sdr->tREA_max + board_delay_skew_max;
2400 	if (sdr->tRC_min <= clk_period &&
2401 	    sdr->tRP_min <= (clk_period / 2) &&
2402 	    sdr->tREH_min <= (clk_period / 2)) {
2405 		tdvw = calc_tdvw(trp_cnt, clk_period, sdr->tRHOH_min,
2406 				 sdr->tREA_max, ext_rd_mode);
2407 		tdvw_max = calc_tdvw_max(trp_cnt, clk_period, sdr->tRHOH_min,
2430 			trp_cnt = (sdr->tREA_max + board_delay_skew_max
2440 		trp_cnt = calc_cycl(sdr->tRP_min, clk_period);
2441 		trh = sdr->tRC_min - ((trp_cnt + 1) * clk_period);
2442 		if (sdr->tREH_min >= trh)
2443 			trh_cnt = calc_cycl(sdr->tREH_min, clk_period);
2447 		tdvw = calc_tdvw(trp_cnt, clk_period, sdr->tRHOH_min,
2448 				 sdr->tREA_max, ext_rd_mode);
2456 						 sdr->tRHOH_min,
2480 			trp_cnt = (sdr->tREA_max + board_delay_skew_max
2486 				 sdr->tRHOH_min,
2489 	if (sdr->tWC_min <= clk_period &&
2490 	    (sdr->tWP_min + if_skew) <= (clk_period / 2) &&
2491 	    (sdr->tWH_min + if_skew) <= (clk_period / 2)) {
2497 		twp_cnt = calc_cycl(sdr->tWP_min + if_skew, clk_period);
2498 		if ((twp_cnt + 1) * clk_period < (sdr->tALS_min + if_skew))
2499 			twp_cnt = calc_cycl(sdr->tALS_min + if_skew,
2502 		twh = (sdr->tWC_min - (twp_cnt + 1) * clk_period);
2503 		if (sdr->tWH_min >= twh)
2504 			twh = sdr->tWH_min;
2516 	tadl_cnt = calc_cycl((sdr->tADL_min + if_skew), clk_period);
2517 	tccs_cnt = calc_cycl((sdr->tCCS_min + if_skew), clk_period);
2518 	twhr_cnt = calc_cycl((sdr->tWHR_min + if_skew), clk_period);
2519 	trhw_cnt = calc_cycl((sdr->tRHW_min + if_skew), clk_period);
2537 	trhz_cnt = calc_cycl(sdr->tRHZ_max, clk_period);
2539 	twb_cnt = calc_cycl((sdr->tWB_max + board_delay), clk_period);
2557 	tfeat_cnt = calc_cycl(sdr->tFEAT_max, clk_period);
2561 	tceh_cnt = calc_cycl(sdr->tCEH_min, clk_period);
2562 	tcs_cnt = calc_cycl((sdr->tCS_min + if_skew), clk_period);