Hello,Vitaly
Thanks for your reply.
I added SCC4 to rs_table as following:
static struct serial_state rs_table[] = {
/* UART CLK PORT IRQ FLAGS NUM */
{ 0, 0, PROFF_SCC1, SIU_INT_SCC1, 0, (0 |
NUM_IS_SCC) }, /* SCC1 ttyS0 */
{ 0, 0, PROFF_SCC4, SIU_INT_SCC4, 0, (3 |
NUM_IS_SCC) }, /* SCC4 ttyS1 */
};
ttyS0,ttyS1 work as COM port,but linux boot log only is
outputed at ttyS0,how can I redirect it at ttyS1?
After linux boots successfully,linux prompt will display
at ttyS1,and I use it normally.
(u-boot parameter: setenv bootargs root=/dev/nfs rw
console=ttyS1,115200n8
rootfs: /dev/console --> ttyS1)
at \arch\ppc\boot\simple\m8260_tty.c,Even if I define
SCC_CONSOLE to 4,Linux boot log is outputed at ttyS0.
the following comment is written at m8260_tty.c:
/* If defined, enables serial console. The value (1
through 4) should designate which SCC is used, but this
isn't complete. Only SCC1 is known to work at this time.
*/
#ifdef CONFIG_SCC_CONSOLE
#define SCC_CONSOLE 4
#endif
Maybe it is true.
--- Vitaly Bordug <vvv75 at yandex.ru> ?????????
> Ning,
> Well, AFAIK the serial console on the second UART
> (and second UART on
> SCC4 as well) haven't been included yet to the
> community tree. To be
> sure you can take a look in the 8260_io/uart.c where
> in rs_table
> structure second entry should be {0, 0, PROFF_SCC4
> ... Implementation is
> not that hard, you need only make proper mentioned
> entry, enable
> transceiver (BCSR+4), and program parallel port pins
> (take a look at
> chapter 37 of MPC8272 reference manual, grep for
> SCC4).
>
> --
> Regards, Vitaly
__________________________________
Let's Celebrate Together!
Yahoo! JAPAN
http://pr.mail.yahoo.co.jp/so2005/
