diff options
Diffstat (limited to 'include/fsl_ddr_dimm_params.h')
| -rw-r--r-- | include/fsl_ddr_dimm_params.h | 77 |
1 files changed, 48 insertions, 29 deletions
diff --git a/include/fsl_ddr_dimm_params.h b/include/fsl_ddr_dimm_params.h index 99a72bc6e1..09a67a6802 100644 --- a/include/fsl_ddr_dimm_params.h +++ b/include/fsl_ddr_dimm_params.h @@ -1,5 +1,5 @@ /* - * Copyright 2008 Freescale Semiconductor, Inc. + * Copyright 2008-2014 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -13,7 +13,7 @@ #define EDC_ECC 2 #define EDC_AC_PARITY 4 -/* Parameters for a DDR2 dimm computed from the SPD */ +/* Parameters for a DDR dimm computed from the SPD */ typedef struct dimm_params_s { /* DIMM organization parameters */ @@ -32,7 +32,12 @@ typedef struct dimm_params_s { unsigned int n_row_addr; unsigned int n_col_addr; unsigned int edc_config; /* 0 = none, 1 = parity, 2 = ECC */ +#ifdef CONFIG_SYS_FSL_DDR4 + unsigned int bank_addr_bits; + unsigned int bank_group_bits; +#else unsigned int n_banks_per_sdram_device; +#endif unsigned int burst_lengths_bitmask; /* BL=4 bit 2, BL=8 = bit 3 */ unsigned int row_density; @@ -43,19 +48,19 @@ typedef struct dimm_params_s { /* DIMM timing parameters */ - unsigned int mtb_ps; /* medium timebase ps, only for ddr3 */ - unsigned int ftb_10th_ps; /* fine timebase, in 1/10 ps, only for ddr3 */ - unsigned int taa_ps; /* minimum CAS latency time, only for ddr3 */ - unsigned int tfaw_ps; /* four active window delay, only for ddr3 */ + int mtb_ps; /* medium timebase ps */ + int ftb_10th_ps; /* fine timebase, in 1/10 ps */ + int taa_ps; /* minimum CAS latency time */ + int tfaw_ps; /* four active window delay */ /* * SDRAM clock periods * The range for these are 1000-10000 so a short should be sufficient */ - unsigned int tckmin_x_ps; - unsigned int tckmin_x_minus_1_ps; - unsigned int tckmin_x_minus_2_ps; - unsigned int tckmax_ps; + int tckmin_x_ps; + int tckmin_x_minus_1_ps; + int tckmin_x_minus_2_ps; + int tckmax_ps; /* SPD-defined CAS latencies */ unsigned int caslat_x; @@ -65,32 +70,46 @@ typedef struct dimm_params_s { unsigned int caslat_lowest_derated; /* Derated CAS latency */ /* basic timing parameters */ - unsigned int trcd_ps; - unsigned int trp_ps; - unsigned int tras_ps; - - unsigned int twr_ps; /* maximum = 63750 ps */ - unsigned int twtr_ps; /* maximum = 63750 ps */ - unsigned int trfc_ps; /* max = 255 ns + 256 ns + .75 ns + int trcd_ps; + int trp_ps; + int tras_ps; + +#ifdef CONFIG_SYS_FSL_DDR4 + int trfc1_ps; + int trfc2_ps; + int trfc4_ps; + int trrds_ps; + int trrdl_ps; + int tccdl_ps; +#else + int twr_ps; /* maximum = 63750 ps */ + int trfc_ps; /* max = 255 ns + 256 ns + .75 ns = 511750 ps */ + int trrd_ps; /* maximum = 63750 ps */ + int twtr_ps; /* maximum = 63750 ps */ + int trtp_ps; /* byte 38, spd->trtp */ +#endif - unsigned int trrd_ps; /* maximum = 63750 ps */ - unsigned int trc_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ + int trc_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ - unsigned int refresh_rate_ps; - unsigned int extended_op_srt; + int refresh_rate_ps; + int extended_op_srt; - /* DDR3 doesn't need these as below */ - unsigned int tis_ps; /* byte 32, spd->ca_setup */ - unsigned int tih_ps; /* byte 33, spd->ca_hold */ - unsigned int tds_ps; /* byte 34, spd->data_setup */ - unsigned int tdh_ps; /* byte 35, spd->data_hold */ - unsigned int trtp_ps; /* byte 38, spd->trtp */ - unsigned int tdqsq_max_ps; /* byte 44, spd->tdqsq */ - unsigned int tqhs_ps; /* byte 45, spd->tqhs */ +#if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2) + int tis_ps; /* byte 32, spd->ca_setup */ + int tih_ps; /* byte 33, spd->ca_hold */ + int tds_ps; /* byte 34, spd->data_setup */ + int tdh_ps; /* byte 35, spd->data_hold */ + int tdqsq_max_ps; /* byte 44, spd->tdqsq */ + int tqhs_ps; /* byte 45, spd->tqhs */ +#endif /* DDR3 RDIMM */ unsigned char rcw[16]; /* Register Control Word 0-15 */ +#ifdef CONFIG_SYS_FSL_DDR4 + unsigned int dq_mapping[18]; + unsigned int dq_mapping_ors; +#endif } dimm_params_t; extern unsigned int ddr_compute_dimm_parameters( |