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drivers/ddr/fsl: Add 3DS RDIMM support

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On top of RDIMM support, add new register calculation to support
3DS RDIMMs. Only symmetrical 3DS is supported at this time.

Signed-off-by: York Sun <york.sun@nxp.com>
This commit is contained in:
York Sun 2018-01-29 09:44:35 -08:00
parent d46ec0bbaf
commit c0c32af0b2
8 changed files with 89 additions and 16 deletions
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6
include/fsl_ddr_dimm_params.h
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@ -1,5 +1,6 @@
/*
* Copyright 2008-2014 Freescale Semiconductor, Inc.
* Copyright 2008-2016 Freescale Semiconductor, Inc.
* Copyright 2017-2018 NXP Semiconductor
*
* SPDX-License-Identifier: GPL-2.0
*/
@ -18,12 +19,14 @@ typedef struct dimm_params_s {
char mpart[19]; /* guaranteed null terminated */
unsigned int n_ranks;
unsigned int die_density;
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 package_3ds; /* number of dies in 3DS DIMM */
unsigned int device_width; /* x4, x8, x16 components */
/* SDRAM device parameters */
@ -79,6 +82,7 @@ typedef struct dimm_params_s {
int trrds_ps;
int trrdl_ps;
int tccdl_ps;
int trfc_slr_ps;
#else
int twr_ps; /* maximum = 63750 ps */
int trfc_ps; /* max = 255 ns + 256 ns + .75 ns