Hi,
On Thu, Dec 12, 2013 at 11:59 AM, Rajeev kumar <rajeev-dlh.kumar@xxxxxx> wrote:
> On 12/12/2013 6:09 AM, Jingoo Han wrote:
>>
>> On Wednesday, December 11, 2013 8:09 PM, Rajeev kumar wrote:
>>>
>>> On 12/11/2013 3:08 PM, Mohit KUMAR wrote:
>>>>
>>>> DT field name for the phy address changed since kernel 3.10. Set the
>>>> snps,phy-addr to 0xffffffff so that the driver probes for the phy.
>>>>
>>>> Signed-off-by: Mohit Kumar<mohit.kumar@xxxxxx>
>>>> Cc: Pratyush Anand<pratyush.anand@xxxxxx>
>>>> Cc: Viresh Kumar<viresh.linux@xxxxxxxxx>
>>>> Cc: spear-devel@xxxxxxxxxxx
>>>> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
>>>> Cc: devicetree@xxxxxxxxxxxxxxx
>>>> ---
>>>> arch/arm/boot/dts/spear13xx.dtsi | 1 +
>>>> 1 files changed, 1 insertions(+), 0 deletions(-)
>>>>
>>>> diff --git a/arch/arm/boot/dts/spear13xx.dtsi
>>>> b/arch/arm/boot/dts/spear13xx.dtsi
>>>> index 4382547..3518803 100644
>>>> --- a/arch/arm/boot/dts/spear13xx.dtsi
>>>> +++ b/arch/arm/boot/dts/spear13xx.dtsi
>>>> @@ -155,6 +155,7 @@
>>>>
>>>> gmac0: eth@e2000000 {
>>>> compatible = "st,spear600-gmac";
>>>> + snps,phy-addr =<0xffffffff>;
>>>
>>>
>>> Don't you think it should be st,phy-addr =<0xffffffff>, as the
>>> manufacturer is 'st' as the compatible suggest
>>
>>
>> Hi Rajeev Kumar,
>>
>> According to the Documentation, it guides to use 'snps' prefix.
>>
>> In my humble opinion,
>> 'gmac' is a Synopsys based IP. Thus, if 'snps,phy-addr' is
>> not ST specific, 'snps' prefix can be used.
>>
>
>
> Very much true, I raise the point just becuase compatible =
> "st,spear600-gmac". Check the manufacturer name here.
As documented, "st,spear600-gmac" is there for backwards
compatibility. It should really be updated to
'"snps,dwmac-<version>", "snps,dwmac"'.
>> ./Documentation/devicetree/bindings/net/stmmac.txt
>> - snps,phy-addr phy address to connect to.
About the "snps,phy-addr" property, Florian recently raised
the issue that this is !standard. I am currently implementing
proper DT ethernet phy node support for stmmac. Just a
heads up. :)
ChenYu
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