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powerpc/mpc8xxx: Adding fallback to raw timing on supported boards 

In case of empty SPD or checksum error, fallback to raw timing on
supported boards.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
York Sun 2011-06-07 09:42:17 +08:00 committed by Kumar Gala
parent 1b3e3c4f26
commit f2d264b660
1 changed files with 8 additions and 0 deletions
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8
arch/powerpc/cpu/mpc8xxx/ddr/main.c
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@ -343,12 +343,20 @@ fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step,
&(pinfo->dimm_params[i][j]);
retval = compute_dimm_parameters(spd, pdimm, i);
#ifdef CONFIG_SYS_DDR_RAW_TIMING
if (retval != 0) {
printf("SPD error! Trying fallback to "
"raw timing calculation\n");
fsl_ddr_get_dimm_params(pdimm, i, j);
}
#else
if (retval == 2) {
printf("Error: compute_dimm_parameters"
" non-zero returned FATAL value "
"for memctl=%u dimm=%u\n", i, j);
return 0;
}
#endif
if (retval) {
debug("Warning: compute_dimm_parameters"
" non-zero return value for memctl=%u "