diff options
Diffstat (limited to 'arch/powerpc/include/asm/fsl_ddr_dimm_params.h')
| -rw-r--r-- | arch/powerpc/include/asm/fsl_ddr_dimm_params.h | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h b/arch/powerpc/include/asm/fsl_ddr_dimm_params.h deleted file mode 100644 index 99a72bc6e1..0000000000 --- a/arch/powerpc/include/asm/fsl_ddr_dimm_params.h +++ /dev/null @@ -1,101 +0,0 @@ -/* - * Copyright 2008 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 - * Version 2 as published by the Free Software Foundation. - */ - -#ifndef DDR2_DIMM_PARAMS_H -#define DDR2_DIMM_PARAMS_H - -#define EDC_DATA_PARITY 1 -#define EDC_ECC 2 -#define EDC_AC_PARITY 4 - -/* Parameters for a DDR2 dimm computed from the SPD */ -typedef struct dimm_params_s { - - /* DIMM organization parameters */ - char mpart[19]; /* guaranteed null terminated */ - - unsigned int n_ranks; - unsigned long long rank_density; - unsigned long long capacity; - unsigned int data_width; - unsigned int primary_sdram_width; - unsigned int ec_sdram_width; - unsigned int registered_dimm; - unsigned int device_width; /* x4, x8, x16 components */ - - /* SDRAM device parameters */ - unsigned int n_row_addr; - unsigned int n_col_addr; - unsigned int edc_config; /* 0 = none, 1 = parity, 2 = ECC */ - unsigned int n_banks_per_sdram_device; - unsigned int burst_lengths_bitmask; /* BL=4 bit 2, BL=8 = bit 3 */ - unsigned int row_density; - - /* used in computing base address of DIMMs */ - unsigned long long base_address; - /* mirrored DIMMs */ - unsigned int mirrored_dimm; /* only for ddr3 */ - - /* 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 */ - - /* - * 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; - - /* SPD-defined CAS latencies */ - unsigned int caslat_x; - unsigned int caslat_x_minus_1; - unsigned int caslat_x_minus_2; - - 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 - = 511750 ps */ - - unsigned int trrd_ps; /* maximum = 63750 ps */ - unsigned int trc_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ - - unsigned int refresh_rate_ps; - unsigned 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 */ - - /* DDR3 RDIMM */ - unsigned char rcw[16]; /* Register Control Word 0-15 */ -} dimm_params_t; - -extern unsigned int ddr_compute_dimm_parameters( - const generic_spd_eeprom_t *spd, - dimm_params_t *pdimm, - unsigned int dimm_number); - -#endif |
