i.mx6ull与DDR3校正不通过的问题

gwei_0210 2017-08-19 01:39:17

各位大神有用过Freescale IMX6ULL芯片嘛，我们用的是1个DDR3芯片，就是跑不起来，哪位大神用过请指教一下啊?

错误信息如下：

DDR Freq: 396 MHz

ddr_mr1=0x00000000
Start write leveling calibration...
running Write level HW calibration
Write leveling calibration completed, update the following registers in your initialization script
MMDC_MPWLDECTRL0 ch0 (0x021b080c) = 0x00030007
MMDC_MPWLDECTRL1 ch0 (0x021b0810) = 0x00080008
Write DQS delay result:
Write DQS0 delay: 7/256 CK
Write DQS1 delay: 3/256 CK

Starting DQS gating calibration
. HC_DEL=0x00000000 result[00]=0x00000011
. HC_DEL=0x00000001 result[01]=0x00000011
. HC_DEL=0x00000002 result[02]=0x00000011
. HC_DEL=0x00000003 result[03]=0x00000011
. HC_DEL=0x00000004 result[04]=0x00000011
. HC_DEL=0x00000005 result[05]=0x00000011
. HC_DEL=0x00000006 result[06]=0x00000011
. HC_DEL=0x00000007 result[07]=0x00000011
. HC_DEL=0x00000008 result[08]=0x00000011
. HC_DEL=0x00000009 result[09]=0x00000011
. HC_DEL=0x0000000A result[0A]=0x00000011
. HC_DEL=0x0000000B result[0B]=0x00000011
. HC_DEL=0x0000000C result[0C]=0x00000011
. HC_DEL=0x0000000D result[0D]=0x00000011
ERROR FOUND, we can't get suitable value !!!!
dram test fails for all values.

Error: failed during ddr calibration

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