diff options
| author | York Sun <yorksun@freescale.com> | 2011-06-07 09:42:16 +0800 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-07-11 13:24:20 -0500 |
| commit | 1b3e3c4f263ff20b95c3514eefbde47e950c39e0 (patch) | |
| tree | 4043fc4d718f49dee1a2d88daa1b9ef87b435980 /arch/powerpc/cpu/mpc8xxx/ddr/ddr.h | |
| parent | aeb6716a12c68644d6dc1e798b724086c3cfcd24 (diff) | |
powerpc/mpc8xxx: Enable calculation for fixed DDR chips
We used to have fixed parameters for soldered DDR chips. This patch
introduces CONFIG_SYS_DDR_RAW_TIMING to enable calculation based on timing
data from DDR chip datasheet, implemneted in board-specific files or header
files.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/cpu/mpc8xxx/ddr/ddr.h')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/ddr.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h index 1e866fe035..f59aa33b22 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ddr.h @@ -14,6 +14,7 @@ #include "common_timing_params.h" +#if defined(CONFIG_DDR_SPD) || defined(CONFIG_SPD_EEPROM) /* * Bind the main DDR setup driver's generic names * to this specific DDR technology. @@ -25,6 +26,7 @@ compute_dimm_parameters(const generic_spd_eeprom_t *spd, { return ddr_compute_dimm_parameters(spd, pdimm, dimm_number); } +#endif /* * Data Structures @@ -80,4 +82,9 @@ extern void check_interleaving_options(fsl_ddr_info_t *pinfo); extern unsigned int mclk_to_picos(unsigned int mclk); extern unsigned int get_memory_clk_period_ps(void); extern unsigned int picos_to_mclk(unsigned int picos); + +/* board specific function */ +int fsl_ddr_get_dimm_params(dimm_params_t *pdimm, + unsigned int controller_number, + unsigned int dimm_number); #endif |