printk() does not work on UART1
Haiying Wang
Haiying.Wang at freescale.com
Thu Jan 10 01:14:28 EST 2008
On Wed, 2008-01-09 at 00:06 -0500, mike zheng wrote:
> Hi All,
>
> I have one mpc8568 board using UART1 as the serial port. The OS is
> Linux Kernel2.4. If I use the polling mode driver of
> gen550_progress(), it works fine. However the printk() does not work
> after the console_init(). Anyone know what shall I change in the
> kernel to use UART1 as serial console? I assume the default is UART0,
> but I don't know where the value is set. I changed the CONFIG_CMDLINE
> to ttyS1, it does NOT work.
Make sure you've configured PC0/1/2/3 for UART1 SOUT/RTS/CTS/SIN in
u-boot.
Haiying
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