include/fsl_ddr.h

   1 /*
   2  * Copyright 2008-2014 Freescale Semiconductor, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * Version 2 as published by the Free Software Foundation.
   7  */
   8
   9 #ifndef FSL_DDR_MAIN_H
  10 #define FSL_DDR_MAIN_H
  11
  12 #include <fsl_ddrc_version.h>
  13 #include <fsl_ddr_sdram.h>
  14 #include <fsl_ddr_dimm_params.h>
  15
  16 #include <common_timing_params.h>
  17
  18 #ifndef CONFIG_SYS_FSL_DDR_MAIN_NUM_CTRLS
  19 /* All controllers are for main memory */
  20 #define CONFIG_SYS_FSL_DDR_MAIN_NUM_CTRLS       CONFIG_NUM_DDR_CONTROLLERS
  21 #endif
  22
  23 #ifdef CONFIG_SYS_FSL_DDR_LE
  24 #define ddr_in32(a)     in_le32(a)
  25 #define ddr_out32(a, v) out_le32(a, v)
  26 #define ddr_setbits32(a, v)     setbits_le32(a, v)
  27 #define ddr_clrbits32(a, v)     clrbits_le32(a, v)
  28 #define ddr_clrsetbits32(a, clear, set) clrsetbits_le32(a, clear, set)
  29 #else
  30 #define ddr_in32(a)     in_be32(a)
  31 #define ddr_out32(a, v) out_be32(a, v)
  32 #define ddr_setbits32(a, v)     setbits_be32(a, v)
  33 #define ddr_clrbits32(a, v)     clrbits_be32(a, v)
  34 #define ddr_clrsetbits32(a, clear, set) clrsetbits_be32(a, clear, set)
  35 #endif
  36
  37 u32 fsl_ddr_get_version(unsigned int ctrl_num);
  38
  39 #if defined(CONFIG_DDR_SPD) || defined(CONFIG_SPD_EEPROM)
  40 /*
  41  * Bind the main DDR setup driver's generic names
  42  * to this specific DDR technology.
  43  */
  44 static __inline__ int
  45 compute_dimm_parameters(const unsigned int ctrl_num,
  46                         const generic_spd_eeprom_t *spd,
  47                         dimm_params_t *pdimm,
  48                         unsigned int dimm_number)
  49 {
  50         return ddr_compute_dimm_parameters(ctrl_num, spd, pdimm, dimm_number);
  51 }
  52 #endif
  53
  54 /*
  55  * Data Structures
  56  *
  57  * All data structures have to be on the stack
  58  */
  59 #define CONFIG_SYS_NUM_DDR_CTLRS CONFIG_NUM_DDR_CONTROLLERS
  60 #define CONFIG_SYS_DIMM_SLOTS_PER_CTLR CONFIG_DIMM_SLOTS_PER_CTLR
  61
  62 typedef struct {
  63         generic_spd_eeprom_t
  64            spd_installed_dimms[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR];
  65         struct dimm_params_s
  66            dimm_params[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR];
  67         memctl_options_t memctl_opts[CONFIG_SYS_NUM_DDR_CTLRS];
  68         common_timing_params_t common_timing_params[CONFIG_SYS_NUM_DDR_CTLRS];
  69         fsl_ddr_cfg_regs_t fsl_ddr_config_reg[CONFIG_SYS_NUM_DDR_CTLRS];
  70         unsigned int first_ctrl;
  71         unsigned int num_ctrls;
  72         unsigned long long mem_base;
  73         unsigned int dimm_slots_per_ctrl;
  74         int (*board_need_mem_reset)(void);
  75         void (*board_mem_reset)(void);
  76         void (*board_mem_de_reset)(void);
  77 } fsl_ddr_info_t;
  78
  79 /* Compute steps */
  80 #define STEP_GET_SPD                 (1 << 0)
  81 #define STEP_COMPUTE_DIMM_PARMS      (1 << 1)
  82 #define STEP_COMPUTE_COMMON_PARMS    (1 << 2)
  83 #define STEP_GATHER_OPTS             (1 << 3)
  84 #define STEP_ASSIGN_ADDRESSES        (1 << 4)
  85 #define STEP_COMPUTE_REGS            (1 << 5)
  86 #define STEP_PROGRAM_REGS            (1 << 6)
  87 #define STEP_ALL                     0xFFF
  88
  89 unsigned long long
  90 fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
  91                                        unsigned int size_only);
  92 const char *step_to_string(unsigned int step);
  93
  94 unsigned int compute_fsl_memctl_config_regs(const unsigned int ctrl_num,
  95                                const memctl_options_t *popts,
  96                                fsl_ddr_cfg_regs_t *ddr,
  97                                const common_timing_params_t *common_dimm,
  98                                const dimm_params_t *dimm_parameters,
  99                                unsigned int dbw_capacity_adjust,
 100                                unsigned int size_only);
 101 unsigned int compute_lowest_common_dimm_parameters(
 102                                 const unsigned int ctrl_num,
 103                                 const dimm_params_t *dimm_params,
 104                                 common_timing_params_t *outpdimm,
 105                                 unsigned int number_of_dimms);
 106 unsigned int populate_memctl_options(const common_timing_params_t *common_dimm,
 107                                 memctl_options_t *popts,
 108                                 dimm_params_t *pdimm,
 109                                 unsigned int ctrl_num);
 110 void check_interleaving_options(fsl_ddr_info_t *pinfo);
 111
 112 unsigned int mclk_to_picos(const unsigned int ctrl_num, unsigned int mclk);
 113 unsigned int get_memory_clk_period_ps(const unsigned int ctrl_num);
 114 unsigned int picos_to_mclk(const unsigned int ctrl_num, unsigned int picos);
 115 void fsl_ddr_set_lawbar(
 116                 const common_timing_params_t *memctl_common_params,
 117                 unsigned int memctl_interleaved,
 118                 unsigned int ctrl_num);
 119 void fsl_ddr_sync_memctl_refresh(unsigned int first_ctrl,
 120                                  unsigned int last_ctrl);
 121
 122 int fsl_ddr_interactive_env_var_exists(void);
 123 unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo, int var_is_set);
 124 void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd,
 125                      unsigned int ctrl_num, unsigned int dimm_slots_per_ctrl);
 126
 127 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
 128 unsigned int check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr);
 129 void board_add_ram_info(int use_default);
 130
 131 /* processor specific function */
 132 void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
 133                                    unsigned int ctrl_num, int step);
 134
 135 /* board specific function */
 136 int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
 137                         unsigned int controller_number,
 138                         unsigned int dimm_number);
 139 void update_spd_address(unsigned int ctrl_num,
 140                         unsigned int slot,
 141                         unsigned int *addr);
 142 #endif