Hello,
A small generic question ..
Have any body experienced undefined state of ns16550A Uart chip ,
especially during REinitialisation..
I get it when i my bootloader uses uart0 and later after loding
kernel
through serial link and using in my kernel command line
console=ttyS0 then in init/main.c ,
console_init() or open("/dev/console",....) the serial port is
again
setup via serial_console_setup() or rs_open() like interfaces.
even afer taking care of same baudspeed it just send junk
characters.
though initialising a uart is extremly simple.only difference
betwen bootloader and kernel initialization i can see regarding
polling/interrupt mode.
if i mask those code in serial.c ..i don't have any problem..
but why it happens, what special sequence of initialisation can
avoid this problem..
Best Regards,
Atul
