kernel memory mapping problem

Wolfgang Denk wd at
Fri Aug 8 07:32:23 EST 2003

In message <20030807154923.56073.qmail at> you wrote:
> But my functions are serial running on PPC82xx, its
> means that when I mapped the the address using __pa(
> (void *)tmp) to bd_address, then reading the BD's
> status and control registers, if OK, then return from

Just a stupid question: what are the alignment requirements of a  BD,
and which alignment is guaranteed for your tmp buffer?

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at
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