2 * Copyright 2008 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>
14 #include "ddr1_2_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
58 fsl_ddr_compute(fsl_ddr_info_t
*pinfo
, unsigned int start_step
);
60 extern const char * step_to_string(unsigned int step
);
63 compute_fsl_memctl_config_regs(const memctl_options_t
*popts
,
64 fsl_ddr_cfg_regs_t
*ddr
,
65 const common_timing_params_t
*common_dimm
,
66 const dimm_params_t
*dimm_parameters
,
67 unsigned int dbw_capacity_adjust
);
69 compute_lowest_common_dimm_parameters(const dimm_params_t
*dimm_params
,
70 common_timing_params_t
*outpdimm
,
71 unsigned int number_of_dimms
);
72 extern unsigned int populate_memctl_options(int all_DIMMs_registered
,
73 memctl_options_t
*popts
,
74 unsigned int ctrl_num
);
76 extern unsigned int mclk_to_picos(unsigned int mclk
);
77 extern unsigned int get_memory_clk_period_ps(void);
78 extern unsigned int picos_to_mclk(unsigned int picos
);