netdev - Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH

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Date:	Wed, 15 Sep 2010 14:11:06 +0200
From:	Wolfgang Grandegger <wg@...ndegger.com>
To:	Marc Kleine-Budde <mkl@...gutronix.de>
CC:	Oliver Hartkopp <socketcan@...tkopp.net>,
	andrew.chih.howe.khor@...el.com, socketcan-core@...ts.berlios.de,
	qi.wang@...el.com, netdev@...r.kernel.org, gregkh@...e.de,
	yong.y.wang@...el.com, Masayuki Ohtake <masa-korg@....okisemi.com>,
	Morinaga <morinaga526@....okisemi.com>, meego-dev@...go.com,
	arjan@...ux.intel.com
Subject: Re: [MeeGo-Dev][PATCH] Topcliff: Update PCH_CAN driver to 2.6.35

On 09/15/2010 02:04 PM, Marc Kleine-Budde wrote:
> On 09/15/2010 12:55 PM, Wolfgang Grandegger wrote:
>>> Just a remark:
>>>
>>> During the IDF the informations about the Topcliff Controller Hub have been
>>> reworked, so that some of the documentation became available for the public:
>>>
>>> http://edc.intel.com/Platforms/Atom-E6xx/#hardware
>>>
>>> Especially the Datasheet for the Platform Controller Hub EG20T can be found:
>>>
>>> http://download.intel.com/embedded/chipsets/datasheet/324211.pdf
>>>
>>> In chapter 13 there are some details about the CAN controller.
>>
>> Ah, thanks for the link. The CAN controller seems then to be similar to
>> the OKI MSM9225B.
> 
> According to the datasheet for the msm9225 I found, the chip has got an
> 8 bit interface (mmap'ed or spi). The Intel is 32 bit based (most, maybe
> all, upper 16 bit are marked as reserverd).

I said *similar*, especially in respect to ability of combining RX
message objects to a fifo.

Wolfgang.

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