[U-Boot-Users] U-boot hangs in smc_putc

Wolfgang Denk wd at denx.de
Tue Jul 12 23:02:04 CEST 2005

In message <loom.20050712T224950-345 at post.gmane.org> you wrote:
> I am currently having the problem that my EP885C port of u-boot hangs in
> serial.c's smc_putc function at the point where it loops until the serial port
> is ready.  I have scoured the past archives, and the best that I can get is that
> this could be a baud rate or port selection problem.  For my EP885C board, I
> have the baud rate set at 9600, which I am nearly 100% sure is correct.  I have
> CONFIG_8xx_CONSOLE_SMC1 set as 1, which I also believe to be correct.  Are there
> any other reasons why the serial port would never be ready?  Thank you for the
> help on this and my other previous posts.

If the port never gets  ready  this  means  the  character  is  never
actually sent. This probably means that there is no transmit clock to
clock out the bits.

Check your clocks.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
Pray to God, but keep rowing to shore. - Russian Proverb

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