[PATCH 4/6] Add multi mport support.

Zhang Wei Wei.Zhang at freescale.com
Thu Jan 31 16:57:25 EST 2008


> -----Original Message-----
> From: Kumar Gala [mailto:galak at kernel.crashing.org] 
> On Jan 30, 2008, at 4:30 AM, Zhang Wei wrote:
> > Change lots of static variable to mport private. And add 
> mport to some
> > function declaration.
> Can you explain this patch further.  Its not clear exactly from this  
> commit message why we are doing this.
> - k

Sorry about I have a little hurry about it.

The original RapidIO driver suppose there is only one mpc85xx RIO
in system. So, some data structures are defined as mpc85xx_rio global,
such as 'regs_win', 'dbell_ring', 'msg_tx_ring'. Now, I changed them to
mport's private members. And you can define multi RIO OF-nodes in dts
for multi RapidIO controller in one processor, such as PCI/PCI-Ex host
in Freescale's silicon. And the mport operation function declaration
should be changed
to know which RapidIO controller is target.


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