diff options
Diffstat (limited to 'cpu/mpc85xx')
| -rw-r--r-- | cpu/mpc85xx/ddr-gen3.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/cpu/mpc85xx/ddr-gen3.c b/cpu/mpc85xx/ddr-gen3.c index 99c325a..8ac3d5f 100644 --- a/cpu/mpc85xx/ddr-gen3.c +++ b/cpu/mpc85xx/ddr-gen3.c @@ -98,10 +98,12 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, #endif /* - * 200 painful micro-seconds must elapse between + * 500 painful micro-seconds must elapse between * the DDR clock setup and the DDR config enable. + * DDR2 need 200 us, and DDR3 need 500 us from spec, + * we choose the max, that is 500 us for all of case. */ - udelay(200); + udelay(500); asm volatile("sync;isync"); /* Let the controller go */ |