powerpc/mpc8xxx: Fix DDR 3-way interleaving
Should check if interleaving is enabled before using interleaving mode.
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
index 5311a26..1a8d593 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c
@@ -541,14 +541,17 @@
total_memory = fsl_ddr_compute(&info, STEP_GET_SPD, 0);
/* setup 3-way interleaving before enabling DDRC */
- switch (info.memctl_opts[0].memctl_interleaving_mode) {
- case FSL_DDR_3WAY_1KB_INTERLEAVING:
- case FSL_DDR_3WAY_4KB_INTERLEAVING:
- case FSL_DDR_3WAY_8KB_INTERLEAVING:
- fsl_ddr_set_intl3r(info.memctl_opts[0].memctl_interleaving_mode);
- break;
- default:
- break;
+ if (info.memctl_opts[0].memctl_interleaving) {
+ switch (info.memctl_opts[0].memctl_interleaving_mode) {
+ case FSL_DDR_3WAY_1KB_INTERLEAVING:
+ case FSL_DDR_3WAY_4KB_INTERLEAVING:
+ case FSL_DDR_3WAY_8KB_INTERLEAVING:
+ fsl_ddr_set_intl3r(
+ info.memctl_opts[0].memctl_interleaving_mode);
+ break;
+ default:
+ break;
+ }
}
/* Program configuration registers. */