[U-Boot-Users] Changing the console port on icecube (mpc5200) u-boot: what am I missing?

Caruso, Nick ncaruso at irobot.com
Fri Feb 25 21:57:57 CET 2005


I wish to change u-boot 1.1.1 to use PSC2 (aka ttyS1) for console instead of PSC1.  I found

 * Serial console configuration
#define CONFIG_PSC_CONSOLE	2	/* console is on PSC1 */
#define CONFIG_BAUDRATE		115200	/* ... at 115200 bps */
#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, 230400 }

in include/configs/icecube.h.  As you can see, I changed the constant 1 to 2 in the CONFIG_PSC_CONSOLE define.

I know that the hardware connected to PSC2 will function as a console, as I am able to boot u-boot on PSC1 and then boot linux with the kernel parameter
and linux comes up with a login prompt on that serial port.

However, when I build u-boot with the change above, and install it in flash and try to run it, I get no output on any serial ports.

Is there some additional configuration I need to change?

     Nick Caruso
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