[RESEND PATCH] ARM: dts: keystone-k2g-evm: fix rgmii phy-mode for ksz9031 phy

[santosh.shilimkar at oracle.com]

On 7/25/20 12:57 AM, Arnd Bergmann wrote:
> On Fri, Jul 24, 2020 at 11:57 PM santosh.shilimkar at oracle.com
> <santosh.shilimkar at oracle.com> wrote:
>> On 7/24/20 2:42 PM, Grygorii Strashko wrote:
>>> Since commit bcf3440c6dd7 ("net: phy: micrel: add phy-mode support for the
>>> KSZ9031 PHY") the networking is broken on keystone-k2g-evm board.
>>>
>>> The above board have phy-mode = "rgmii-id" and it is worked before because
>>> KSZ9031 PHY started with default RGMII internal delays configuration (TX
>>> off, RX on 1.2 ns) and MAC provided TX delay by default.
>>> After above commit, the KSZ9031 PHY starts handling phy mode properly and
>>> enables both RX and TX delays, as result networking is become broken.
>>>
>>> Fix it by switching to phy-mode = "rgmii-rxid" to reflect previous
>>> behavior.
>>>
>>> Cc: Oleksij Rempel <o.rempel at pengutronix.de>
>>> Cc: Andrew Lunn <andrew at lunn.ch>
>>> Cc: Philippe Schenker <philippe.schenker at toradex.com>
>>> Fixes: bcf3440c6dd7 ("net: phy: micrel: add phy-mode support for the KSZ9031 PHY")
>>> Signed-off-by: Grygorii Strashko <grygorii.strashko at ti.com>
>>> ---
>>> Fix for one more broken TI board with KSZ9031 PHY.
>> Can you please apply this patch to your v5.8 fixes branch and send it
>> upstream ? Without the fix K2G EVM board is broken with v5.8.
>>
>> Am hoping you can pick this up with pull request since it just one
>> patch.
> 
> I've applied it now, but would point out that it's generally better if you could
> forward the patch to soc at kernel.org with your Signed-off-by if you come
> across a similar patch again. That way it ends up in patchwork, and we
> are more likely to pick it up quickly.
> 
Will do next time. Thanks for picking it up.
Regards,
Santosh