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/main.c | |
| 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/main.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/main.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c index 62a73ddf4c..3c49fa97c0 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c @@ -325,6 +325,7 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, switch (start_step) { case STEP_GET_SPD: +#if defined(CONFIG_DDR_SPD) || defined(CONFIG_SPD_EEPROM) /* STEP 1: Gather all DIMM SPD data */ for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { fsl_ddr_get_spd(pinfo->spd_installed_dimms[i], i); @@ -356,6 +357,17 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step, } } +#else + case STEP_COMPUTE_DIMM_PARMS: + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + dimm_params_t *pdimm = + &(pinfo->dimm_params[i][j]); + fsl_ddr_get_dimm_params(pdimm, i, j); + } + } + debug("Filling dimm parameters from board specific file\n"); +#endif case STEP_COMPUTE_COMMON_PARMS: /* * STEP 3: Compute a common set of timing parameters |