Re: [LinuxBIOS] Interesting.

[Marc Jones]

Feng, Libo wrote:
> Hi, all,
>
> In our board, we found the trace is sent out: "Issuing SOFT_RESET…" from 
> the function init_cpus in the file init_cpus.c. But when the function 
> runs, the serial port is still far to be initialized, how dose the trace 
> is sent out?
>
> Best Regards
>
> 丰立波 Feng Libo @ AMD  Ext: 20906
> Mobile Phone: [phone]
> Office Phone: [phone]

Each mainboard usually has an early uart setup located in auto.c or 
cache_as_ram_auto.c.

For example the Serengeti-Cheetah has the following lines.

w83627hf_enable_serial(SERIAL_DEV, TTYS0_BASE);
uart_init();
console_init();

Marc