AM3352: Can uart1 and UART2 of am3352 be accessed in EDMA mode at the same time?

Dear 

Identify a problem:
Can uart1 and UART2 of am3352 be accessed in EDMA mode at the same time? Or uart1 and UART2 are used at the same time. Are there any restrictions?
Supplement:
One of our devices uses uart1 and UART2 of am3352 at the same time. Uart1 is physically connected to wl1837 Bluetooth module, and DTS is configured for EDMA access. UART2 is physically connected to other devices, and DTS configuration is also accessed in EDMA mode.
In the actual communication process, it is found that uart1 and UART2 are used separately, and the communication is normal. However, in the uart1 communication process, once UART2 operation is carried out (such as cat / dev / ttys2), uart1 TX cannot send data, uart1 RX can also receive letters normally.
Therefore, there are the above problems. I checked the datasheet and didn't see the relevant usage restrictions.
In addition, I configure UART2 for CPU access. Uart1 still adopts EDMA access. Uart1 and UART2 can be used at the same time without interference.

Thanks

YunxueWang