[okl4-developer] does linux(Wombat) re-configure UART when booting?

[Hal Ashburner]

On Thu, 2007-09-13 at 01:45 +0800, kashin Lin wrote:
> Hi Jorge,
> 
> 1. does the "printf" function's implementation ( in libs\c ) use
> iguana serial driver too?
Yes

> 2. if the situation i got isn't due to
> printk's implementation, how can i debug for this case? 
>     ( it just stopped after "Backed PXA serial", no more messages... )


Peppering the code with 
L4_KDB_Enter("did foo");

is a pretty useful technique in these situations.

Another is to get a trace from your simulator then compare the
instructions to an objdump of l4/iguana/wombat to see what happened.

-- 
Kind regards,
Hal Ashburner