2 * Copyright 2008-2011 Freescale Semiconductor, Inc.
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.
10 #define FSL_DDR_MAIN_H
12 #include <asm/fsl_ddr_sdram.h>
13 #include <asm/fsl_ddr_dimm_params.h>
15 #include "common_timing_params.h"
18 * Bind the main DDR setup driver's generic names
19 * to this specific DDR technology.
22 compute_dimm_parameters(const generic_spd_eeprom_t *spd,
24 unsigned int dimm_number)
26 return ddr_compute_dimm_parameters(spd, pdimm, dimm_number);
32 * All data structures have to be on the stack
34 #define CONFIG_SYS_NUM_DDR_CTLRS CONFIG_NUM_DDR_CONTROLLERS
35 #define CONFIG_SYS_DIMM_SLOTS_PER_CTLR CONFIG_DIMM_SLOTS_PER_CTLR
39 spd_installed_dimms[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR];
41 dimm_params[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR];
42 memctl_options_t memctl_opts[CONFIG_SYS_NUM_DDR_CTLRS];
43 common_timing_params_t common_timing_params[CONFIG_SYS_NUM_DDR_CTLRS];
44 fsl_ddr_cfg_regs_t fsl_ddr_config_reg[CONFIG_SYS_NUM_DDR_CTLRS];
48 #define STEP_GET_SPD (1 << 0)
49 #define STEP_COMPUTE_DIMM_PARMS (1 << 1)
50 #define STEP_COMPUTE_COMMON_PARMS (1 << 2)
51 #define STEP_GATHER_OPTS (1 << 3)
52 #define STEP_ASSIGN_ADDRESSES (1 << 4)
53 #define STEP_COMPUTE_REGS (1 << 5)
54 #define STEP_PROGRAM_REGS (1 << 6)
55 #define STEP_ALL 0xFFF
57 extern unsigned long long
58 fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
59 unsigned int size_only);
61 extern const char * step_to_string(unsigned int step);
64 compute_fsl_memctl_config_regs(const memctl_options_t *popts,
65 fsl_ddr_cfg_regs_t *ddr,
66 const common_timing_params_t *common_dimm,
67 const dimm_params_t *dimm_parameters,
68 unsigned int dbw_capacity_adjust,
69 unsigned int size_only);
71 compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params,
72 common_timing_params_t *outpdimm,
73 unsigned int number_of_dimms);
74 extern unsigned int populate_memctl_options(int all_DIMMs_registered,
75 memctl_options_t *popts,
77 unsigned int ctrl_num);
78 extern void check_interleaving_options(fsl_ddr_info_t *pinfo);
80 extern unsigned int mclk_to_picos(unsigned int mclk);
81 extern unsigned int get_memory_clk_period_ps(void);
82 extern unsigned int picos_to_mclk(unsigned int picos);
83 extern unsigned int fsl_ddr_get_mem_data_rate(void);