hi3559V200串口1不能收发数据，只打印liteos信息

serinfo:1.0 driver revision:
0: uart:PL011 rev2 mmio:0x120A0000 irq:21 tx:14246 rx:621 RTS|DTR|DSR|CD|RI
1: uart:PL011 rev2 mmio:0x120A1000 irq:22 tx:5 rx:0 DSR|CD|RI
2: uart:PL011 rev2 mmio:0x120A2000 irq:23 tx:0 rx:0 DSR|CD|RI
3: uart:PL011 rev2 mmio:0x120A3000 irq:24 tx:0 rx:0 DSR|CD|RI

mnt # himm 0x111F000C
*** Board tools : ver0.0.1_20121120 ***
[debug]: {source/utils/cmdshell.c:168}cmdstr:himm
====dump memory 0X111F000C====
0x111F000C: 0x00000431
NewValue:^[[A^C
/mnt # himm 0x111F0008
*** Board tools : ver0.0.1_20121120 ***
[debug]: {source/utils/cmdshell.c:168}cmdstr:himm
====dump memory 0X111F0008====
0x111F0008: 0x00000531
NewValue:^C

是复用成uart1的 但是不能收发数据，而且接uart1 上电会打印liteos的信息，我要怎么配置成普通串口，不用做liteos的打印？