[U-Boot] [PATCH 6/7] powerpc/mpc8xxx: Adding fallback to raw timing on supported boards

Kumar Gala galak at kernel.crashing.org
Fri Jun 3 09:46:39 CEST 2011


On May 26, 2011, at 6:25 PM, York Sun wrote:

> In case of empty SPD or checksum error, fallback to raw timing on
> supported boards.
> 
> Signed-off-by: York Sun <yorksun at freescale.com>
> ---
> arch/powerpc/cpu/mpc8xxx/ddr/main.c |    8 ++++++++
> 1 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
> index db7cf11..2e43da6 100644
> --- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c
> +++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
> @@ -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_DDR_RAW_TIMING

Should this be CONFIG_SYS_DDR_RAW_TIMING??

We need this added to README at a minimum for what DDR_RAW_TIMING means.


> +				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 "
> -- 
> 1.7.0.4
> 
> 
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