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AM5728: SPI4 read data error

Part Number: AM5728

Customer has problem on using AM5726 SPI4. the returned read data is always wrong, the wave shows data is right from external sensor, but wrong in SPI module.

Send out read ID command, sensor returned the right ID value 0x12, but in SPI_rx register it is 0x0186. 

Customer has verified I2C, CAN, UART, UART, SPI1, SPI2, QSPI on the AM5726 board made by themselves. but SPI4 has the issue.

As either GPEVM nor IDK did not connect device on SPI4, I don't know how to verify. Please help.

Regards. Tony Tang