Lines Matching +full:driver +full:- +full:strength +full:- +full:ohm

4  * SPDX-License-Identifier:	GPL-2.0+
29 if (!pdimm->n_ranks) in fsl_ddr_board_options()
38 while (pbsp->datarate_mhz_high) { in fsl_ddr_board_options()
39 if (pbsp->n_ranks == pdimm->n_ranks) { in fsl_ddr_board_options()
40 if (ddr_freq <= pbsp->datarate_mhz_high) { in fsl_ddr_board_options()
41 popts->clk_adjust = pbsp->clk_adjust; in fsl_ddr_board_options()
42 popts->wrlvl_start = pbsp->wrlvl_start; in fsl_ddr_board_options()
43 popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; in fsl_ddr_board_options()
44 popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; in fsl_ddr_board_options()
45 popts->cpo_override = pbsp->cpo_override; in fsl_ddr_board_options()
46 popts->write_data_delay = in fsl_ddr_board_options()
47 pbsp->write_data_delay; in fsl_ddr_board_options()
59 pbsp_highest->datarate_mhz_high); in fsl_ddr_board_options()
60 popts->clk_adjust = pbsp_highest->clk_adjust; in fsl_ddr_board_options()
61 popts->wrlvl_start = pbsp_highest->wrlvl_start; in fsl_ddr_board_options()
62 popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; in fsl_ddr_board_options()
63 popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; in fsl_ddr_board_options()
69 pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb); in fsl_ddr_board_options()
72 popts->data_bus_width = 1; in fsl_ddr_board_options()
73 popts->otf_burst_chop_en = 0; in fsl_ddr_board_options()
74 popts->burst_length = DDR_BL8; in fsl_ddr_board_options()
75 popts->bstopre = 0; /* enable auto precharge */ in fsl_ddr_board_options()
78 * Factors to consider for half-strength driver enable: in fsl_ddr_board_options()
79 * - number of DIMMs installed in fsl_ddr_board_options()
81 popts->half_strength_driver_enable = 1; in fsl_ddr_board_options()
85 popts->wrlvl_override = 1; in fsl_ddr_board_options()
86 popts->wrlvl_sample = 0xf; in fsl_ddr_board_options()
91 popts->rtt_override = 0; in fsl_ddr_board_options()
94 popts->zq_en = 1; in fsl_ddr_board_options()
97 popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_80ohm); in fsl_ddr_board_options()
98 popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_80ohm) | in fsl_ddr_board_options()
101 /* optimize cpo for erratum A-009942 */ in fsl_ddr_board_options()
102 popts->cpo_sample = 0x59; in fsl_ddr_board_options()
104 popts->cswl_override = DDR_CSWL_CS0; in fsl_ddr_board_options()
106 /* DHC_EN =1, ODT = 75 Ohm */ in fsl_ddr_board_options()
107 popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm); in fsl_ddr_board_options()
108 popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm); in fsl_ddr_board_options()
117 gd->ram_size = fsl_ddr_sdram_size(); in fsl_initdram()
131 gd->ram_size = dram_size; in fsl_initdram()