diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/t1040qds/ddr.c | 17 | ||||
| -rw-r--r-- | board/freescale/t1040qds/ddr.h | 37 |
2 files changed, 27 insertions, 27 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) diff --git a/board/freescale/t1040qds/ddr.h b/board/freescale/t1040qds/ddr.h index afa72af..a6e1673 100644 --- a/board/freescale/t1040qds/ddr.h +++ b/board/freescale/t1040qds/ddr.h @@ -1,5 +1,5 @@ /* - * Copyright 2013 Freescale Semiconductor, Inc. + * Copyright 2013-2014 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ @@ -14,9 +14,6 @@ struct board_specific_parameters { u32 wrlvl_start; u32 wrlvl_ctl_2; u32 wrlvl_ctl_3; - u32 cpo; - u32 write_data_delay; - u32 force_2t; }; /* @@ -28,21 +25,25 @@ struct board_specific_parameters { static const struct board_specific_parameters udimm0[] = { /* * memory controller 0 - * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T - * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay | + * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | + * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | */ - {2, 833, 4, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, - {2, 833, 0, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, - {2, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, - {2, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, - {2, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, - {2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, - {1, 833, 4, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, - {1, 833, 0, 4, 6, 0x06060607, 0x08080807, 0xff, 2, 0}, - {1, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, - {1, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09, 0xff, 2, 0}, - {1, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, - {1, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A, 0xff, 2, 0}, +#ifdef CONFIG_SYS_FSL_DDR4 + {2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A,}, + {2, 1900, 0, 4, 6, 0x08080A0C, 0x0D0E0F0A,}, + {1, 1666, 0, 4, 6, 0x0708090B, 0x0C0D0E09,}, + {1, 1900, 0, 4, 6, 0x08080A0C, 0x0D0E0F0A,}, + {1, 2200, 0, 4, 7, 0x08090A0D, 0x0F0F100C,}, +#elif defined(CONFIG_SYS_FSL_DDR3) + {2, 833, 0, 4, 6, 0x06060607, 0x08080807,}, + {2, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09,}, + {2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A,}, + {1, 833, 0, 4, 6, 0x06060607, 0x08080807,}, + {1, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09,}, + {1, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A,}, +#else +#error DDR type not defined +#endif {} }; |