linux-kernel - Re: [PATCH 3/3] net: via-rhine: add OF bus binding

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Message-ID: <52E87929.30708@prisktech.co.nz>
Date:	Wed, 29 Jan 2014 16:44:41 +1300
From:	Tony Prisk <linux@...sktech.co.nz>
To:	Alexey Charkov <alchark@...il.com>,
	Rob Herring <robherring2@...il.com>
CC:	netdev <netdev@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Roger Luethi <rl@...lgate.ch>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] net: via-rhine: add OF bus binding

On 29/01/14 07:27, Alexey Charkov wrote:
> 2014/1/27 Rob Herring <robherring2@...il.com>:
>> On Mon, Jan 27, 2014 at 5:51 AM, Alexey Charkov <alchark@...il.com> wrote:
>>> This should make the driver usable with VIA/WonderMedia ARM-based
>>> Systems-on-Chip integrated Rhine III adapters. Note that these
>>> are always in MMIO mode, and don't have any known EEPROM.
>>>
>>> Signed-off-by: Alexey Charkov <alchark@...il.com>
>>> Signed-off-by: Roger Luethi <rl@...lgate.ch>
>>> ---
>>>   .../devicetree/bindings/net/via-rhine.txt          |  18 ++
>>>   drivers/net/ethernet/via/Kconfig                   |   2 +-
>>>   drivers/net/ethernet/via/via-rhine.c               | 293 +++++++++++++--------
>>>   3 files changed, 200 insertions(+), 113 deletions(-)
>>>   create mode 100644 Documentation/devicetree/bindings/net/via-rhine.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/net/via-rhine.txt b/Documentation/devicetree/bindings/net/via-rhine.txt
>>> new file mode 100644
>>> index 0000000..684dd3a
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/net/via-rhine.txt
>>> @@ -0,0 +1,18 @@
>>> +* VIA Rhine 10/100 Network Controller
>>> +
>>> +Required properties:
>>> +- compatible : Should be "via,rhine"
>> This should be more specific rather than...
>>
>>> +- reg : Address and length of the io space
>>> +- interrupts : Should contain the controller interrupt line
>>> +- rhine,revision : Rhine core revision, used to inform the
>>> +       driver of quirks and capabilities to expect from
>>> +       the device. Mimics the respective PCI attribute.
>> having this property. The OF match table can then have the quirks set
>> based on compatible strings.
> Sounds fair. Do you think something like the following would fly?
>
> Required properties:
> - compatible : Should be "via,rhine-soc-vt8500" for integrated Rhine
> cores found in SoC's such as VIA VT8500, WonderMedia WM8950 and
> possibly others. These are listed as 1106:3106 rev. 0x84 on the
> virtual PCI bus under vendor-provided kernels.
Does it need a special name? I would have assumed they are using their 
own IP for the VT6105 or VT6106S.
Then you can use it to add quirks later on if needed.

Regards
Tony Prisk
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