SCC3 console problem on MPC860

[??????]

Hi, all
I am not used to write in English.

I would like to use SCC3 as second console, and use SMC1 as first console.
I ported denx kernel 2.4.3-pre4 into my 860 board.
when I compiling, checked SCC3 for UART option in MPC8xx CPM option.
SMC1(ttyS0) is connected to my linux box COM2, SCC3(ttyS1) is connected to COM1.

After booting, in COM2 echo 1111 > /dev/ttyS1 result is shown in SCC3(ttyS1).
so far good.
but, COM1 port don't any receive keyboard key.

In /arch/ppc/uart.c
I modified CONFIG_SERIAL_CONSOLE_PORT for SCC3 console

#if 1
#undef CONFIG_SERIAL_CONSOLE_PORT
#define CONFIG_SERIAL_CONSOLE_PORT	1
#endif

Is it enough to to make SCC3 console?

Thanks for any comments and replyings.

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우리 인터넷, Daum
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