[PATCH 1/5] Add Freescale DMA and DMA channel to Documentation/powerpc/booting-without-of.txt file.

[Zhang Wei-r63237]

> > > 
> > > On Fri, Sep 07, 2007 at 04:43:35PM +0200, Segher 
> Boessenkool wrote:
> > > > > +   l) Freescale DMA
> > > > 
> > > > > +    - compatible : Should be "fsl,dma".
> > > > 
> > > > Please choose some more specific name.  "fsl,mpc8540-dma" would
> > > > be a reasonable choice perhaps.
> > > 
> > > More precisely, the compatible property should always 
> have an specific
> > > entry based on the exact chip the DMA engine resides in, 
> as well as a
> > > more general entry for any fsl dma engine of this type.
> > > 
> > There is only difference in DMA channel and not in DMA node 
> now. Does it
> > need add the precise compatible property name?
> 
> Yes.  First of all, there most likely is a difference -- the 
> endianness
> of the shared status summary register.  Secondly, the device 
> tree should
> not make assumptions as far as whether the user is going to bind to
> individual channels or the whole controller.

I have a strange issue here. If I rename 'fsl,dma' to 'fsl,mpc8540-dma',
the 'fsl,mpc8540-dma-channel' will be also regarded as DMA device not
DMA channel.

Thanks!
- zw