| /* |
| * Copyright 2008-2010 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_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 |
| #endif /* #if defined(CONFIG_FSL_DDR1) */ |
| |
| /* 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 |
| |
| /* 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_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_eor; |
| } 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; |
| } 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; |
| unsigned int addr_hash; |
| |
| /* 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 quad_rank_present; |
| |
| /* 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; |
| } memctl_options_t; |
| |
| extern phys_size_t fsl_ddr_sdram(void); |
| #endif |
