[U-Boot-Users] serial: polling or interrupt based?

[Wolfgang Denk]

In message <1096026889.3318.40.camel at mhpajh5c> you wrote:
> 
> However, the u-boot code writes zeros to the SCCM and doesn't touch
> CIMR. So I guess it's polling based, yes?

SDon;t guess. Read the source code. This is what you get it for.

> Then the question is, do I simply skip steps 10-13? If I wanted to use
> interrupts instead of polling, what else would I need to change?

I have no idea what you are worrying about. Is there any problem with
the existing MPC8xx drivers you're trying to fix?

> specific for MPC852T, specifies that there is no BRG1 nor BRG2. The
> u-boot hard codes wiring BRG1 to the selected SCC. Why? Even more

Why not?

> important: I have to obviously change it; is there more than one place I
> need to change (namely, replace cp_brgc1 with cp_brgc4)?

Really? There are several MPC866 based boards which run the  existing
code just fine.

Best regards,

Wolfgang Denk

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