diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c index c3e1d7664..936c1951f 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -236,9 +236,12 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr, * tAXPD=1, need design to confirm. */ int tXP = max((get_memory_clk_period_ps() * 3), 7500); /* unit=ps */ + unsigned int data_rate = fsl_ddr_get_mem_data_rate(); tmrd_mclk = 4; /* set the turnaround time */ trwt_mclk = 1; + if ((data_rate/1000000 > 1150) || (popts->memctl_interleaving)) + twrt_mclk = 1; if (popts->dynamic_power == 0) { /* powerdown is not used */ act_pd_exit_mclk = 1; |