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driver/ddr/fsl: Add DDR4 support to Freescale DDR driver

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Mostly reusing DDR3 driver, this patch adds DDR4 SPD handling, register
calculation and programming.

Signed-off-by: York Sun <yorksun@freescale.com>
This commit is contained in:
York Sun
2014-03-27 17:54:47 -07:00
parent 8d451a7129
commit 34e026f9b1
19 changed files with 2378 additions and 321 deletions
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23
include/common_timing_params.h
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@ -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
@ -14,32 +14,45 @@ typedef struct {
unsigned int tckmin_x_ps;
unsigned int tckmax_ps;
unsigned int tckmax_max_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
unsigned int twr_ps; /* maximum = 63750 ps */
#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 trtp_ps; /* byte 38, spd->trtp */
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 lowest_common_spd_caslat;
unsigned int highest_common_derated_caslat;
unsigned int additive_latency;
unsigned int all_dimms_burst_lengths_bitmask;