Unable to read back data from adrv9009 using DMA in ZCU102

I am using ZCU102 +ADRV9009 for transmitting data. However after initializing ADRV9009, I cannot read data back by using DMA. I modified a little bit where I use AXI-SPI IP for connecting between ARM-Cortex A53 and ADRV9009. I include my added code and results in the following. As far as I know, result read back from RX should be equal to sending data on TX which is 0x2666. But it is not identical.