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

Browse source 
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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63
include/fsl_ddr_sdram.h
View file

@ -1,5 +1,5 @@
/*
* Copyright 2008-2011 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
@ -13,11 +13,13 @@
* Pick a basic DDR Technology.
*/
#include <ddr_spd.h>
#include <fsl_ddrc_version.h>
#define SDRAM_TYPE_DDR1 2
#define SDRAM_TYPE_DDR2 3
#define SDRAM_TYPE_LPDDR1 6
#define SDRAM_TYPE_DDR3 7
#define SDRAM_TYPE_DDR1 2
#define SDRAM_TYPE_DDR2 3
#define SDRAM_TYPE_LPDDR1 6
#define SDRAM_TYPE_DDR3 7
#define SDRAM_TYPE_DDR4 5
#define DDR_BL4 4 /* burst length 4 */
#define DDR_BC4 DDR_BL4 /* burst chop for ddr3 */
@ -54,6 +56,12 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
#ifndef CONFIG_FSL_SDRAM_TYPE
#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR3
#endif
#elif defined(CONFIG_SYS_FSL_DDR4)
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (3) /* FIXME */
typedef struct ddr4_spd_eeprom_s generic_spd_eeprom_t;
#ifndef CONFIG_FSL_SDRAM_TYPE
#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR4
#endif
#endif /* #if defined(CONFIG_SYS_FSL_DDR1) */
#define FSL_DDR_ODT_NEVER 0x0
@ -116,7 +124,8 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
#define TIMING_CFG_2_CPO_MASK 0x0F800000
#if defined(CONFIG_P4080)
#if defined(CONFIG_SYS_FSL_DDR_VER) && \
(CONFIG_SYS_FSL_DDR_VER > FSL_DDR_VER_4_4)
#define RD_TO_PRE_MASK 0xf
#define RD_TO_PRE_SHIFT 13
#define WR_DATA_DELAY_MASK 0xf
@ -154,9 +163,27 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
#define DDR_CDR2_ODT_MASK 0x1
#define DDR_CDR1_ODT(x) ((x & DDR_CDR1_ODT_MASK) << DDR_CDR1_ODT_SHIFT)
#define DDR_CDR2_ODT(x) (x & DDR_CDR2_ODT_MASK)
#define DDR_CDR2_VREF_OVRD(x) (0x00008080 | ((((x) - 37) & 0x3F) << 8))
#if (defined(CONFIG_SYS_FSL_DDR_VER) && \
(CONFIG_SYS_FSL_DDR_VER >= FSL_DDR_VER_4_7))
#ifdef CONFIG_SYS_FSL_DDR3L
#define DDR_CDR_ODT_OFF 0x0
#define DDR_CDR_ODT_120ohm 0x1
#define DDR_CDR_ODT_200ohm 0x2
#define DDR_CDR_ODT_75ohm 0x3
#define DDR_CDR_ODT_60ohm 0x5
#define DDR_CDR_ODT_46ohm 0x7
#elif defined(CONFIG_SYS_FSL_DDR4)
#define DDR_CDR_ODT_OFF 0x0
#define DDR_CDR_ODT_100ohm 0x1
#define DDR_CDR_ODT_120OHM 0x2
#define DDR_CDR_ODT_80ohm 0x3
#define DDR_CDR_ODT_60ohm 0x4
#define DDR_CDR_ODT_40ohm 0x5
#define DDR_CDR_ODT_50ohm 0x6
#define DDR_CDR_ODT_30ohm 0x7
#else
#define DDR_CDR_ODT_OFF 0x0
#define DDR_CDR_ODT_120ohm 0x1
#define DDR_CDR_ODT_180ohm 0x2
@ -165,6 +192,7 @@ typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
#define DDR_CDR_ODT_60hm 0x5
#define DDR_CDR_ODT_70ohm 0x6
#define DDR_CDR_ODT_47ohm 0x7
#endif /* DDR3L */
#else
#define DDR_CDR_ODT_75ohm 0x0
#define DDR_CDR_ODT_55ohm 0x1
@ -188,6 +216,7 @@ typedef struct fsl_ddr_cfg_regs_s {
unsigned int timing_cfg_2;
unsigned int ddr_sdram_cfg;
unsigned int ddr_sdram_cfg_2;
unsigned int ddr_sdram_cfg_3;
unsigned int ddr_sdram_mode;
unsigned int ddr_sdram_mode_2;
unsigned int ddr_sdram_mode_3;
@ -196,6 +225,14 @@ typedef struct fsl_ddr_cfg_regs_s {
unsigned int ddr_sdram_mode_6;
unsigned int ddr_sdram_mode_7;
unsigned int ddr_sdram_mode_8;
unsigned int ddr_sdram_mode_9;
unsigned int ddr_sdram_mode_10;
unsigned int ddr_sdram_mode_11;
unsigned int ddr_sdram_mode_12;
unsigned int ddr_sdram_mode_13;
unsigned int ddr_sdram_mode_14;
unsigned int ddr_sdram_mode_15;
unsigned int ddr_sdram_mode_16;
unsigned int ddr_sdram_md_cntl;
unsigned int ddr_sdram_interval;
unsigned int ddr_data_init;
@ -204,6 +241,10 @@ typedef struct fsl_ddr_cfg_regs_s {
unsigned int ddr_init_ext_addr;
unsigned int timing_cfg_4;
unsigned int timing_cfg_5;
unsigned int timing_cfg_6;
unsigned int timing_cfg_7;
unsigned int timing_cfg_8;
unsigned int timing_cfg_9;
unsigned int ddr_zq_cntl;
unsigned int ddr_wrlvl_cntl;
unsigned int ddr_wrlvl_cntl_2;
@ -211,6 +252,14 @@ typedef struct fsl_ddr_cfg_regs_s {
unsigned int ddr_sr_cntr;
unsigned int ddr_sdram_rcw_1;
unsigned int ddr_sdram_rcw_2;
unsigned int ddr_sdram_rcw_3;
unsigned int ddr_sdram_rcw_4;
unsigned int ddr_sdram_rcw_5;
unsigned int ddr_sdram_rcw_6;
unsigned int dq_map_0;
unsigned int dq_map_1;
unsigned int dq_map_2;
unsigned int dq_map_3;
unsigned int ddr_eor;
unsigned int ddr_cdr1;
unsigned int ddr_cdr2;
@ -225,7 +274,7 @@ typedef struct memctl_options_partial_s {
unsigned int all_dimms_burst_lengths_bitmask;
unsigned int all_dimms_registered;
unsigned int all_dimms_unbuffered;
/* unsigned int lowest_common_SPD_caslat; */
/* unsigned int lowest_common_spd_caslat; */
unsigned int all_dimms_minimum_trcd_ps;
} memctl_options_partial_t;