[OpenWrt-Devel] What should I do if I want to use the RGMII interface on Ralink RT3052?

Mikko Hissa mikko.hissa at werzek.com
Thu Feb 19 03:01:22 EST 2015

> On 19 Feb 2015, at 09:45, 郭传鈜 <gch981213 at gmail.com> wrote:
> Portmap?This value is only for the default VLAN config of the switch right? But the problem I'm facing is that the link status of port 5 is always "link down" even if I plugged in the network cable:-(

Actually no, the switch has like two logical switches and it doesn't forward packets between those two (LAN/WAN).
Does swconfig show the port as disabled?

> 2015-02-19 15:24 GMT+08:00 Mikko Hissa <mikko.hissa at werzek.com <mailto:mikko.hissa at werzek.com>>:
> Hi!
>> On 19 Feb 2015, at 04:14, 郭传鈜 <gch981213 at gmail.com <mailto:gch981213 at gmail.com>> wrote:
>> Hello,everyone!
>> There is a kind of Huawei HG255D which has an RTL8211CL Gigabit PHY and We are trying to add support for it.
>> But I can't find anything about the RGMII and mdio-bus in any dts file of rt305x-based devices:-(
>> The only device I found which used the interface is WL-351 with an RTL8366 switch  but it doesn't use the MDIO interface to control it. I tried to copy the fpa2 and fct2 value from WL-351.dts but ,of course, it doesn't work.
>> Then I tried to do the following:
>> https://github.com/981213/openwrt/commit/47fa84df4dcc9b8bfe49ed2211d463ed014e2df2 <https://github.com/981213/openwrt/commit/47fa84df4dcc9b8bfe49ed2211d463ed014e2df2>
> Yes, there's that and then you need to configure registers for gdma2 in the ethernet driver... Register a second netdev and map packets, to the corresponding netdev/gdma (in/out) interface, by dma descriptors.
> OR
> In the dst file under the esw, change the value of portmap to 3f.
> XD
>> but it doesn't work too.
>> Could someone please tell me what should I do in the dts file and how can I reset the PHY?
>> Sorry for my bad English:-)
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