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| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-05-09 10:47:05 +0200 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-05-09 11:50:14 +0200 |
| commit | d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19 (patch) | |
| tree | d71aae6d706d1f3b01da5f944e247abe308feea0 /board/freescale/t1040qds/ddr.c | |
| parent | 7904b70885f3c589c239f6ac978f299a6744557f (diff) | |
| parent | 173d294b94cfec10063a5be40934d6d8fb7981ce (diff) | |
| download | u-boot-imx-d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19.zip u-boot-imx-d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19.tar.gz u-boot-imx-d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19.tar.bz2 | |
Merge branch 'u-boot/master'
Conflicts:
drivers/net/Makefile
(trivial merge)
Diffstat (limited to 'board/freescale/t1040qds/ddr.c')
| -rw-r--r-- | board/freescale/t1040qds/ddr.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/board/freescale/t1040qds/ddr.c b/board/freescale/t1040qds/ddr.c index da89a36..43f952f 100644 --- a/board/freescale/t1040qds/ddr.c +++ b/board/freescale/t1040qds/ddr.c @@ -1,5 +1,5 @@ /* - * Copyright 2013 Freescale Semiconductor, Inc. + * Copyright 2013-2014 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -39,14 +39,10 @@ void fsl_ddr_board_options(memctl_options_t *popts, if (pbsp->n_ranks == pdimm->n_ranks && (pdimm->rank_density >> 30) >= pbsp->rank_gb) { if (ddr_freq <= pbsp->datarate_mhz_high) { - popts->cpo_override = pbsp->cpo; - popts->write_data_delay = - pbsp->write_data_delay; popts->clk_adjust = pbsp->clk_adjust; popts->wrlvl_start = pbsp->wrlvl_start; popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; - popts->twot_en = pbsp->force_2t; goto found; } pbsp_highest = pbsp; @@ -59,13 +55,10 @@ void fsl_ddr_board_options(memctl_options_t *popts, printf("for data rate %lu MT/s\n", ddr_freq); printf("Trying to use the highest speed (%u) parameters\n", pbsp_highest->datarate_mhz_high); - popts->cpo_override = pbsp_highest->cpo; - popts->write_data_delay = pbsp_highest->write_data_delay; popts->clk_adjust = pbsp_highest->clk_adjust; popts->wrlvl_start = pbsp_highest->wrlvl_start; popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; - popts->twot_en = pbsp_highest->force_2t; } else { panic("DIMM is not supported by this board"); } @@ -81,7 +74,7 @@ found: * Factors to consider for half-strength driver enable: * - number of DIMMs installed */ - popts->half_strength_driver_enable = 0; + popts->half_strength_driver_enable = 1; /* * Write leveling override */ @@ -97,8 +90,14 @@ found: popts->zq_en = 1; /* DHC_EN =1, ODT = 75 Ohm */ +#ifdef CONFIG_SYS_FSL_DDR4 + popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_80ohm); + popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_80ohm) | + DDR_CDR2_VREF_OVRD(70); /* Vref = 70% */ +#else popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm); popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm); +#endif } phys_size_t initdram(int board_type) |