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fsl-ddr: ignore memctl_intlv_ctl setting if only one DDR controller

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If we only have one controller we can completely ignore how
memctl_intlv_ctl is set.  Otherwise other levels of code get confused
and think we have twice as much memory.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2009-02-06 09:56:34 -06:00 • committed by Andy Fleming
parent b29dee3c90
commit 1542fbdeec
1 changed files with 4 additions and 0 deletions
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4
cpu/mpc8xxx/ddr/options.c
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@ -22,7 +22,9 @@ unsigned int populate_memctl_options(int all_DIMMs_registered,
unsigned int ctrl_num) unsigned int ctrl_num)
{ {
unsigned int i; unsigned int i;
#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
const char *p; const char *p;
#endif
/* Chip select options. */ /* Chip select options. */
@ -195,6 +197,7 @@ unsigned int populate_memctl_options(int all_DIMMs_registered,
* requested ranks interleaved together such that the result * requested ranks interleaved together such that the result
* should be a subset of the requested configuration. * should be a subset of the requested configuration.
*/ */
#if (CONFIG_NUM_DDR_CONTROLLERS > 1)
if ((p = getenv("memctl_intlv_ctl")) != NULL) { if ((p = getenv("memctl_intlv_ctl")) != NULL) {
if (pdimm[0].n_ranks == 0) { if (pdimm[0].n_ranks == 0) {
printf("There is no rank on CS0. Because only rank on " printf("There is no rank on CS0. Because only rank on "
@ -262,6 +265,7 @@ unsigned int populate_memctl_options(int all_DIMMs_registered,
break; break;
} }
} }
#endif
fsl_ddr_board_options(popts, pdimm, ctrl_num); fsl_ddr_board_options(popts, pdimm, ctrl_num);