* i2c-bus@0 twice?
@ 2006-03-15 18:29 Johannes Berg
2006-03-16 22:53 ` Michael Ellerman
2006-03-16 23:52 ` Benjamin Herrenschmidt
0 siblings, 2 replies; 3+ messages in thread
From: Johannes Berg @ 2006-03-15 18:29 UTC (permalink / raw)
To: linuxppc-dev
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johannes@quad:/proc/device-tree/ht@0,f2000000/pci@8/mac-io@7/i2c@18000$ ls
AAPL,address built-in i2c-bus@0 linux,phandle
AAPL,address-step compatible interrupt-parent name
AAPL,i2c-rate device_type interrupts reg
#address-cells i2c-bus@0 linux,device #size-cells
Somewhat odd that i2c-bus@0 exists twice :) Anyone have an explanation?
johannes
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* Re: i2c-bus@0 twice?
2006-03-15 18:29 i2c-bus@0 twice? Johannes Berg
@ 2006-03-16 22:53 ` Michael Ellerman
2006-03-16 23:52 ` Benjamin Herrenschmidt
1 sibling, 0 replies; 3+ messages in thread
From: Michael Ellerman @ 2006-03-16 22:53 UTC (permalink / raw)
To: linuxppc-dev
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On Thu, 16 Mar 2006 05:29, Johannes Berg wrote:
> johannes@quad:/proc/device-tree/ht@0,f2000000/pci@8/mac-io@7/i2c@18000$ ls
> AAPL,address built-in i2c-bus@0 linux,phandle
> AAPL,address-step compatible interrupt-parent name
> AAPL,i2c-rate device_type interrupts reg
> #address-cells i2c-bus@0 linux,device #size-cells
>
> Somewhat odd that i2c-bus@0 exists twice :) Anyone have an explanation?
Do you see it twice in OF also?
cheers
--
Michael Ellerman
IBM OzLabs
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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* Re: i2c-bus@0 twice?
2006-03-15 18:29 i2c-bus@0 twice? Johannes Berg
2006-03-16 22:53 ` Michael Ellerman
@ 2006-03-16 23:52 ` Benjamin Herrenschmidt
1 sibling, 0 replies; 3+ messages in thread
From: Benjamin Herrenschmidt @ 2006-03-16 23:52 UTC (permalink / raw)
To: Johannes Berg; +Cc: linuxppc-dev
On Wed, 2006-03-15 at 19:29 +0100, Johannes Berg wrote:
> johannes@quad:/proc/device-tree/ht@0,f2000000/pci@8/mac-io@7/i2c@18000$ ls
> AAPL,address built-in i2c-bus@0 linux,phandle
> AAPL,address-step compatible interrupt-parent name
> AAPL,i2c-rate device_type interrupts reg
> #address-cells i2c-bus@0 linux,device #size-cells
>
> Somewhat odd that i2c-bus@0 exists twice :) Anyone have an explanation?
It's a bug in OF on these machines. We need to workaround that,
especially since only one of them contains all the useful infos
Ben
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2006-03-16 22:53 ` Michael Ellerman
2006-03-16 23:52 ` Benjamin Herrenschmidt
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