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 void remove_unused_controllers(fsl_ddr_info_t *info); 135 136 /* board specific function */ 137 int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, 138 unsigned int controller_number, 139 unsigned int dimm_number); 140 void update_spd_address(unsigned int ctrl_num, 141 unsigned int slot, 142 unsigned int *addr); 143 #endif 144