[U-Boot-Users] Serial Console

Jeff Mann MannJ at embeddedplanet.com
Wed Jun 28 17:45:47 CEST 2006


I cannot get the serial console to work on my PPC 8xx (specifically, It
is a MPC 866). I have set the console for SMC1:

#define	CONFIG_8xx_CONS_SMC1	1	
#undef	CONFIG_8xx_CONS_SMC2
#undef	CONFIG_8xx_CONS_NONE
#define 	CONFIG_BAUDRATE		9600

I can see that the SMCMR1 register is set correctly:
0b0100_1000_0010_0011 (CLEN=9 for 8-N-1, 1 stop bit, SM=Uart Mode, TEN &
REN = RX and TX enabled) and BRGC1 register is set corectly: 0x0001_069A
(enabled, CD=421, div by 1)

What settings should I check and/or where specifically should I debug
for the likely error?

Thanks,
JM




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