mirror of
https://github.com/u-boot/u-boot.git
synced 2024-12-05 02:23:31 +08:00
34e026f9b1
Mostly reusing DDR3 driver, this patch adds DDR4 SPD handling, register calculation and programming. Signed-off-by: York Sun <yorksun@freescale.com>
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/*
|
|
* 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
|
|
* Version 2 as published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef COMMON_TIMING_PARAMS_H
|
|
#define COMMON_TIMING_PARAMS_H
|
|
|
|
typedef struct {
|
|
/* parameters to constrict */
|
|
|
|
unsigned int tckmin_x_ps;
|
|
unsigned int tckmax_ps;
|
|
unsigned int trcd_ps;
|
|
unsigned int trp_ps;
|
|
unsigned int tras_ps;
|
|
#if defined(CONFIG_SYS_FSL_DDR3) || defined(CONFIG_SYS_FSL_DDR4)
|
|
unsigned int taamin_ps;
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYS_FSL_DDR4
|
|
unsigned int trfc1_ps;
|
|
unsigned int trfc2_ps;
|
|
unsigned int trfc4_ps;
|
|
unsigned int trrds_ps;
|
|
unsigned int trrdl_ps;
|
|
unsigned int tccdl_ps;
|
|
#else
|
|
unsigned int twtr_ps; /* maximum = 63750 ps */
|
|
unsigned int trfc_ps; /* maximum = 255 ns + 256 ns + .75 ns
|
|
= 511750 ps */
|
|
|
|
unsigned int trrd_ps; /* maximum = 63750 ps */
|
|
unsigned int trtp_ps; /* byte 38, spd->trtp */
|
|
#endif
|
|
unsigned int twr_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;
|
|
|
|
#if defined(CONFIG_SYS_FSL_DDR1) || defined(CONFIG_SYS_FSL_DDR2)
|
|
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 tdqsq_max_ps; /* byte 44, spd->tdqsq */
|
|
unsigned int tqhs_ps; /* byte 45, spd->tqhs */
|
|
#endif
|
|
|
|
unsigned int ndimms_present;
|
|
unsigned int lowest_common_spd_caslat;
|
|
unsigned int highest_common_derated_caslat;
|
|
unsigned int additive_latency;
|
|
unsigned int all_dimms_burst_lengths_bitmask;
|
|
unsigned int all_dimms_registered;
|
|
unsigned int all_dimms_unbuffered;
|
|
unsigned int all_dimms_ecc_capable;
|
|
|
|
unsigned long long total_mem;
|
|
unsigned long long base_address;
|
|
|
|
/* DDR3 RDIMM */
|
|
unsigned char rcw[16]; /* Register Control Word 0-15 */
|
|
} common_timing_params_t;
|
|
|
|
#endif
|