On Sun, Jul 31, 2011 at 12:32:55AM +0200, Linus Walleij wrote:

2011/7/29 viresh kumar [off-list ref]:

quoted

Nor mine either. :)

Will give some more explanation.

But before that i wanted to know the exact purpose of this
master-slave concept here.

The PL08x has two bus mastering interfaces. They can be
connected to two separate busses and two adress spaces
even, usually that is not the case though.

This is not what the function is about... that's done by my
pl08x_select_bus() function.

This function (pl08x_choose_master_bus) does something completely
different, and has to do with how the LLIs are laid out.  I think
it's to do with whether we use the source or destination for
alignment purposes.

It really has nothing to do with choosing busses.