powerpc/mpc8xxx: Allow DDR overclock
Allow DDR clock runs faster than SPD specifes. This may cause memory
failure, but the user should know what is going to happen when using
higher than expected DDR clock.
Signed-off-by: Ed Swarthout <Ed.Swarthout@freescale.com>
Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
index 9adde31..e958e13 100644
--- a/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
+++ b/arch/powerpc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c
@@ -44,7 +44,6 @@
printf("DDR clock (MCLK cycle %u ps) is faster than "
"the slowest DIMM(s) (tCKmin %u ps) can support.\n",
mclk_ps, tCKmin_X_ps);
- return 1;
}
/* determine the acutal cas latency */
caslat_actual = (tAAmin_ps + mclk_ps - 1) / mclk_ps;
@@ -60,7 +59,6 @@
if (caslat_actual * mclk_ps > 20000) {
printf("The choosen cas latency %d is too large\n",
caslat_actual);
- return 1;
}
outpdimm->lowest_common_SPD_caslat = caslat_actual;