DDR Training的疑问

本帖最后由 aa421701136 于 2017-3-11 15:11 编辑

我这边完全参考了Hi3519的demo做了一款板子，ddr的型号也跟demo板一致。
系统上电之后，只打印System startup。怀疑是DDR的问题。
SDK的exl表格里面，DDR_TRAINING_CFG的值是0xffffffff，也就是默认不进行DDR TRAINING。

问题1：
为了进行DDR TRAINING，我把exl表格DDR_TRAINING_CFG的值设为0x0，生成reg_info.bin下载进去，就可以进行DDR TRAINING。想问下，进行DDR TRAINING，是否还需要设置其它的值？

问题2：
进行DDR TRAINING之后，发现有一大堆错误，如下图所示：
DDRTR
HWG Err: Phy1206C000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000001DQ00000000
Dataeye Err: Phy1206C000Byte00000002DQ00000000
Dataeye Err: Phy1206C000Byte00000003DQ00000000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000001DQ00000000
Dataeye Err: Phy1206C000Byte00000002DQ00000000
Dataeye Err: Phy1206C000Byte00000003DQ00000000
HWRD Err: Phy1206C000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000001DQ00000000
Dataeye Err: Phy1206C000Byte00000002DQ00000000
Dataeye Err: Phy1206C000Byte00000003DQ00000000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000001DQ00000000
Dataeye Err: Phy1206C000Byte00000002DQ00000000
Dataeye Err: Phy1206C000Byte00000003DQ00000000
MPR Err: Phy1206C000Byte00000000
MPR Err: Phy1206C000Byte00000001
MPR Err: Phy1206C000Byte00000002
MPR Err: Phy1206C000Byte00000003
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000001DQ00000000
Dataeye Err: Phy1206C000Byte00000002DQ00000000
Dataeye Err: Phy1206C000Byte00000003DQ00000000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000001DQ00000000
Dataeye Err: Phy1206C000Byte00000002DQ00000000
Dataeye Err: Phy1206C000Byte00000003DQ00000000
Gate Err: Phy1206C000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000000DQ00000000
Dataeye Err: Phy1206C000Byte00000001DQ00000000
Dataeye Err: Phy1206C000Byte00000002DQ00000000
Dataeye Err: Phy1206C000Byte00000003DQ00000000

关于第一个错误：HWG Err: Phy1206C000，对应于u-boot的代码在drivers/ddr/ddr_training_ctrl.c：
                /* check hardware gating */
                if (REG_READ(base_phy + DDR_PHY_PHYINITSTATUS) & PHY_INITSTATUS_GT_MASK) {
                        DDR_FATAL(" PHY[%x] hw gating fail.", base_phy);
                        ddr_training_stat(DDR_ERR_HW_GATING, base_phy, -1, -1);
                }
if语句中的某些值如下：
base_phy = 0x1206c000
#define DDR_PHY_PHYINITSTATUS        0x8       
#define PHY_INITSTATUS_GT_MASK                0x20

我在芯片手册中，并没有找到(base_phy + DDR_PHY_PHYINITSTATUS)也就是0x1206c008地址的寄存器定义。 想问下这个寄存器的定义在哪可以找到？  出现这个错误可能的原因有哪些？