Re: printk() does not work on UART1

2008-01-09 Thread Haiying Wang 
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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Re: printk() does not work on UART1

2008-01-09 Thread mike zheng 
I found the problem. The CONFIG_CMDLINE was overwritten. Right now, it
is working.

Thanks for all the help,

Mike


On 1/9/08, Haiying Wang [EMAIL PROTECTED] wrote:
 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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printk() does not work on UART1

2008-01-08 Thread mike zheng 
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.

Thanks for your help,

Mike
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Re: printk() does not work on UART1

2008-01-08 Thread mike zheng 
 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.

 Thanks for your help,

 Mike
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