[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: 13683249071
> Office Phone: 0086-010-62801406
> 

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




-- 
Marc Jones
Senior Firmware Engineer
(970) 226-9684 Office
mailto:Marc.Jones at amd.com
http://www.amd.com/embeddedprocessors