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driver/ddr: Restruct driver to allow standalone memory space

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U-boot has been initializing DDR for the main memory. The presumption
is the memory stays as a big continuous block, either linear or
interleaved. This change is to support putting some DDR controllers
to separated space without counting into main memory. The standalone
memory controller could use different number of DIMM slots.

Signed-off-by: York Sun <yorksun@freescale.com>
This commit is contained in:
York Sun 2014-08-01 15:51:00 -07:00
parent e211c12e77
commit 1d71efbb03
8 changed files with 240 additions and 110 deletions
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15
include/fsl_ddr.h
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@ -15,6 +15,11 @@
#include <common_timing_params.h>
#ifndef CONFIG_SYS_FSL_DDR_MAIN_NUM_CTRLS
/* All controllers are for main memory */
#define CONFIG_SYS_FSL_DDR_MAIN_NUM_CTRLS CONFIG_NUM_DDR_CONTROLLERS
#endif
#ifdef CONFIG_SYS_FSL_DDR_LE
#define ddr_in32(a) in_le32(a)
#define ddr_out32(a, v) out_le32(a, v)
@ -57,6 +62,13 @@ typedef struct {
memctl_options_t memctl_opts[CONFIG_SYS_NUM_DDR_CTLRS];
common_timing_params_t common_timing_params[CONFIG_SYS_NUM_DDR_CTLRS];
fsl_ddr_cfg_regs_t fsl_ddr_config_reg[CONFIG_SYS_NUM_DDR_CTLRS];
unsigned int first_ctrl;
unsigned int num_ctrls;
unsigned long long mem_base;
unsigned int dimm_slots_per_ctrl;
int (*board_need_mem_reset)(void);
void (*board_mem_reset)(void);
void (*board_mem_de_reset)(void);
} fsl_ddr_info_t;
/* Compute steps */
@ -72,7 +84,6 @@ typedef struct {
unsigned long long
fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
unsigned int size_only);
const char *step_to_string(unsigned int step);
unsigned int compute_fsl_memctl_config_regs(const memctl_options_t *popts,
@ -102,7 +113,7 @@ void fsl_ddr_set_lawbar(
int fsl_ddr_interactive_env_var_exists(void);
unsigned long long fsl_ddr_interactive(fsl_ddr_info_t *pinfo, int var_is_set);
void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd,
unsigned int ctrl_num);
unsigned int ctrl_num, unsigned int dimm_slots_per_ctrl);
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]);
unsigned int check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr);