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* Copyright 2008-2011 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 FSL_DDR_MEMCTL_H
#define FSL_DDR_MEMCTL_H
/*
* Pick a basic DDR Technology.
*/
#include <ddr_spd.h>
#define SDRAM_TYPE_DDR1 2
#define SDRAM_TYPE_DDR2 3
#define SDRAM_TYPE_LPDDR1 6
#define SDRAM_TYPE_DDR3 7
#define DDR_BL4 4 /* burst length 4 */
#define DDR_BC4 DDR_BL4 /* burst chop for ddr3 */
#define DDR_OTF 6 /* on-the-fly BC4 and BL8 */
#define DDR_BL8 8 /* burst length 8 */
#define DDR3_RTT_OFF 0
#define DDR3_RTT_60_OHM 1 /* RTT_Nom = RZQ/4 */
#define DDR3_RTT_120_OHM 2 /* RTT_Nom = RZQ/2 */
#define DDR3_RTT_40_OHM 3 /* RTT_Nom = RZQ/6 */
#define DDR3_RTT_20_OHM 4 /* RTT_Nom = RZQ/12 */
#define DDR3_RTT_30_OHM 5 /* RTT_Nom = RZQ/8 */
#if defined(CONFIG_FSL_DDR1)
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (1)
typedef ddr1_spd_eeprom_t generic_spd_eeprom_t;
#ifndef CONFIG_FSL_SDRAM_TYPE
#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR1
#endif
#elif defined(CONFIG_FSL_DDR2)
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (3)
typedef ddr2_spd_eeprom_t generic_spd_eeprom_t;
#ifndef CONFIG_FSL_SDRAM_TYPE
#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR2
#endif
#elif defined(CONFIG_FSL_DDR3)
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR (3) /* FIXME */
typedef ddr3_spd_eeprom_t generic_spd_eeprom_t;
#ifndef CONFIG_FSL_SDRAM_TYPE
#define CONFIG_FSL_SDRAM_TYPE SDRAM_TYPE_DDR3
#endif /* #if defined(CONFIG_FSL_DDR1) */
#define FSL_DDR_ODT_NEVER 0x0
#define FSL_DDR_ODT_CS 0x1
#define FSL_DDR_ODT_ALL_OTHER_CS 0x2
#define FSL_DDR_ODT_OTHER_DIMM 0x3
#define FSL_DDR_ODT_ALL 0x4
#define FSL_DDR_ODT_SAME_DIMM 0x5
#define FSL_DDR_ODT_CS_AND_OTHER_DIMM 0x6
#define FSL_DDR_ODT_OTHER_CS_ONSAMEDIMM 0x7
/* define bank(chip select) interleaving mode */
#define FSL_DDR_CS0_CS1 0x40
#define FSL_DDR_CS2_CS3 0x20
#define FSL_DDR_CS0_CS1_AND_CS2_CS3 (FSL_DDR_CS0_CS1 | FSL_DDR_CS2_CS3)
#define FSL_DDR_CS0_CS1_CS2_CS3 (FSL_DDR_CS0_CS1_AND_CS2_CS3 | 0x04)
/* define memory controller interleaving mode */
#define FSL_DDR_CACHE_LINE_INTERLEAVING 0x0
#define FSL_DDR_PAGE_INTERLEAVING 0x1
#define FSL_DDR_BANK_INTERLEAVING 0x2
#define FSL_DDR_SUPERBANK_INTERLEAVING 0x3
/* DDR_SDRAM_CFG - DDR SDRAM Control Configuration
*/
#define SDRAM_CFG_MEM_EN 0x80000000
#define SDRAM_CFG_SREN 0x40000000
#define SDRAM_CFG_ECC_EN 0x20000000
#define SDRAM_CFG_RD_EN 0x10000000
#define SDRAM_CFG_SDRAM_TYPE_DDR1 0x02000000
#define SDRAM_CFG_SDRAM_TYPE_DDR2 0x03000000
#define SDRAM_CFG_SDRAM_TYPE_MASK 0x07000000
#define SDRAM_CFG_SDRAM_TYPE_SHIFT 24
#define SDRAM_CFG_DYN_PWR 0x00200000
#define SDRAM_CFG_32_BE 0x00080000
#define SDRAM_CFG_8_BE 0x00040000
#define SDRAM_CFG_NCAP 0x00020000
#define SDRAM_CFG_2T_EN 0x00008000
#define SDRAM_CFG_BI 0x00000001
#if defined(CONFIG_P4080)
#define RD_TO_PRE_MASK 0xf
#define RD_TO_PRE_SHIFT 13
#define WR_DATA_DELAY_MASK 0xf
#define WR_DATA_DELAY_SHIFT 9
#else
#define RD_TO_PRE_MASK 0x7
#define RD_TO_PRE_SHIFT 13
#define WR_DATA_DELAY_MASK 0x7
#define WR_DATA_DELAY_SHIFT 10
#endif
/* DDR_MD_CNTL */
#define MD_CNTL_MD_EN 0x80000000
#define MD_CNTL_CS_SEL_CS0 0x00000000
#define MD_CNTL_CS_SEL_CS1 0x10000000
#define MD_CNTL_CS_SEL_CS2 0x20000000
#define MD_CNTL_CS_SEL_CS3 0x30000000
#define MD_CNTL_CS_SEL_CS0_CS1 0x40000000
#define MD_CNTL_CS_SEL_CS2_CS3 0x50000000
#define MD_CNTL_MD_SEL_MR 0x00000000
#define MD_CNTL_MD_SEL_EMR 0x01000000
#define MD_CNTL_MD_SEL_EMR2 0x02000000
#define MD_CNTL_MD_SEL_EMR3 0x03000000
#define MD_CNTL_SET_REF 0x00800000
#define MD_CNTL_SET_PRE 0x00400000
#define MD_CNTL_CKE_CNTL_LOW 0x00100000
#define MD_CNTL_CKE_CNTL_HIGH 0x00200000
#define MD_CNTL_WRCW 0x00080000
#define MD_CNTL_MD_VALUE(x) (x & 0x0000FFFF)
/* Record of register values computed */
typedef struct fsl_ddr_cfg_regs_s {
struct {
unsigned int bnds;
unsigned int config;
unsigned int config_2;
} cs[CONFIG_CHIP_SELECTS_PER_CTRL];
unsigned int timing_cfg_3;
unsigned int timing_cfg_0;
unsigned int timing_cfg_1;
unsigned int timing_cfg_2;
unsigned int ddr_sdram_cfg;
unsigned int ddr_sdram_cfg_2;
unsigned int ddr_sdram_mode;
unsigned int ddr_sdram_mode_2;
unsigned int ddr_sdram_mode_3;
unsigned int ddr_sdram_mode_4;
unsigned int ddr_sdram_mode_5;
unsigned int ddr_sdram_mode_6;
unsigned int ddr_sdram_mode_7;
unsigned int ddr_sdram_mode_8;
unsigned int ddr_sdram_md_cntl;
unsigned int ddr_sdram_interval;
unsigned int ddr_data_init;
unsigned int ddr_sdram_clk_cntl;
unsigned int ddr_init_addr;
unsigned int ddr_init_ext_addr;
unsigned int timing_cfg_4;
unsigned int timing_cfg_5;
unsigned int ddr_zq_cntl;
unsigned int ddr_wrlvl_cntl;
unsigned int ddr_sr_cntr;
unsigned int ddr_sdram_rcw_1;
unsigned int ddr_sdram_rcw_2;
unsigned int ddr_cdr1;
unsigned int ddr_cdr2;
unsigned int err_disable;
unsigned int err_int_en;
unsigned int debug[32];
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} fsl_ddr_cfg_regs_t;
typedef struct memctl_options_partial_s {
unsigned int all_DIMMs_ECC_capable;
unsigned int all_DIMMs_tCKmax_ps;
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 all_DIMMs_minimum_tRCD_ps;
} memctl_options_partial_t;
/*
* Generalized parameters for memory controller configuration,
* might be a little specific to the FSL memory controller
*/
typedef struct memctl_options_s {
/*
* Memory organization parameters
*
* if DIMM is present in the system
* where DIMMs are with respect to chip select
* where chip selects are with respect to memory boundaries
*/
unsigned int registered_dimm_en; /* use registered DIMM support */
/* Options local to a Chip Select */
struct cs_local_opts_s {
unsigned int auto_precharge;
unsigned int odt_rd_cfg;
unsigned int odt_wr_cfg;
unsigned int odt_rtt_norm;
unsigned int odt_rtt_wr;
} cs_local_opts[CONFIG_CHIP_SELECTS_PER_CTRL];
/* Special configurations for chip select */
unsigned int memctl_interleaving;
unsigned int memctl_interleaving_mode;
unsigned int ba_intlv_ctl;
/* Operational mode parameters */
unsigned int ECC_mode; /* Use ECC? */
/* Initialize ECC using memory controller? */
unsigned int ECC_init_using_memctl;
unsigned int DQS_config; /* Use DQS? maybe only with DDR2? */
/* SREN - self-refresh during sleep */
unsigned int self_refresh_in_sleep;
unsigned int dynamic_power; /* DYN_PWR */
/* memory data width to use (16-bit, 32-bit, 64-bit) */
unsigned int data_bus_width;
unsigned int burst_length; /* BL4, OTF and BL8 */
/* On-The-Fly Burst Chop enable */
unsigned int OTF_burst_chop_en;
/* mirrior DIMMs for DDR3 */
unsigned int mirrored_dimm;
unsigned int ap_en; /* address parity enable for RDIMM */
/* Global Timing Parameters */
unsigned int cas_latency_override;
unsigned int cas_latency_override_value;
unsigned int use_derated_caslat;
unsigned int additive_latency_override;
unsigned int additive_latency_override_value;
unsigned int clk_adjust; /* */
unsigned int cpo_override;
unsigned int write_data_delay; /* DQS adjust */
unsigned int wrlvl_override;
unsigned int wrlvl_sample; /* Write leveling */
unsigned int wrlvl_start;
unsigned int half_strength_driver_enable;
unsigned int twoT_en;
unsigned int threeT_en;
unsigned int bstopre;
unsigned int tCKE_clock_pulse_width_ps; /* tCKE */
unsigned int tFAW_window_four_activates_ps; /* tFAW -- FOUR_ACT */
/* Rtt impedance */
unsigned int rtt_override; /* rtt_override enable */
unsigned int rtt_override_value; /* that is Rtt_Nom for DDR3 */
unsigned int rtt_wr_override_value; /* this is Rtt_WR for DDR3 */
/* Automatic self refresh */
unsigned int auto_self_refresh_en;
unsigned int sr_it;
/* ZQ calibration */
unsigned int zq_en;
/* Write leveling */
unsigned int wrlvl_en;
/* RCW override for RDIMM */
unsigned int rcw_override;
unsigned int rcw_1;
unsigned int rcw_2;
/* control register 1 */
unsigned int ddr_cdr1;
} memctl_options_t;
extern phys_size_t fsl_ddr_sdram(void);
extern int fsl_use_spd(void);
/*
* The 85xx boards have a common prototype for fixed_sdram so put the
* declaration here.
*/
#ifdef CONFIG_MPC85xx
extern phys_size_t fixed_sdram(void);
#endif
#if defined(CONFIG_DDR_ECC)
extern void ddr_enable_ecc(unsigned int dram_size);
#endif
typedef struct fixed_ddr_parm{
int min_freq;
int max_freq;
fsl_ddr_cfg_regs_t *ddr_settings;
} fixed_ddr_parm_t;