netdev - Re: [PATCH 2/2] sh_eth: add R-Car support for real

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Message-ID: <516412DE.8020007@cogentembedded.com>
Date:	Tue, 09 Apr 2013 17:08:46 +0400
From:	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:	phil.edworthy@...esas.com
CC:	Simon Horman <horms@...ge.net.au>, linux-sh@...r.kernel.org,
	netdev@...r.kernel.org, nobuhiro.iwamatsu.yj@...esas.com
Subject: Re: [PATCH 2/2] sh_eth: add R-Car support for real

Hello.

On 08-04-2013 18:40, phil.edworthy@...esas.com wrote:

> Thanks for the patch. When I added r8a7779 support, I had a rather poor
> manual with a lot of information missing. I submitted the patch once I got
> the driver working on a Marzen board, with an REE Expansion Board.

    That must be 3rd type of the expansion board even. I have documentation on 
some Y-R-CAR-H1-BOARD-EXP board, and I have the R0P7779A00020S board mounted 
below Marzen. They seem very different as the latter don't have any switches 
on it.

> One of the main changes you have made is adjusting the offset of the
> control registers. When I did this work originally, I just assumed that
> the base address start at 0x1DE00200, i.e. it included the 0x200 offset.
> This made sense as the registers are then identically positioned to sh4a.

    Yes, but not all SH4 registers exist on R-Car and the Ether base is 
0xFDE00000 according to the datasheet.

> Regards
> Phil

WBR, Sergei

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