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From: Segher Boessenkool <segher@kernel.crashing.org>
Subject: Re: [PATCH 09/15] [POWERPC] 86xx: Add uli1575 pci-bridge sector to
	MPC8641HPCN dts file.
Date: Wed, 27 Jun 2007 23:21:10 +0200
To: Kumar Gala <galak@kernel.crashing.org>
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>>>>>> -		ranges = <0 f8000000 00100000>;
>>>>>> -		reg = <f8000000 00100000>;	// CCSRBAR 1M
>>>>>> +		ranges = <00001000 f8001000 000ff000
>>>>>> +		reg = <f8000000 00001000>;	// CCSRBAR

>> There is "BAR" in the name, so it is a movable range?  Where
>> is the base address set?
>
> in a MMIO register in the space itself.

Oh, *great* design.</sarcasm>

>> What is the relationship between (in the example) the address
>> ranges x'f800_0000+1000 and x'f800_1000+ff000?
>
> uugh, not sure what that's all about.

Reading back I see that the CCSR region is 1MB, and only the
first 4kB are for this PHB.  What is the rest of this range
used for -- devices on this PCI bus, other SoC devices, ...?


Segher