Go to Embedded Software Read Only. Below is an example of doing this for each of the 4 possible configurations. The compat string for this driver in the DTS is: MII – media independent interface. Mentions Tags More Cancel.
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[1/2] Documentation: devicetree: clarify usage of the RGMII phy-modes – Patchwork
Can you email rgmiii the datasheet and your schematic diagram for Ethernet? For this reason, the reduced media independent interface was developed. Depending on your situation, you might need to configure your proxy too in linux.
As such it consists of a preamble, start frame delimiter, Ethernet headers, protocol specific data and a cyclic redundancy check CRC. Transmit and receive path each use one differential pair for data and another differential pair for clock. ChromeFirefoxInternet Explorer 11Safari. There are 32 addresses, each containing 16 bits. I’ve read many forum posts, and all show different device tree nodes.
In an FPGA based system, there are three stages where the required skew ie. How this is handled depends on whether you are running Linux or a stand-alone application.
No license, either express or implied, by estoppel or otherwise, is granted by TI. When this option linx ticked, the core will output the TX clock without skew.
At this point you can rebuild your kernel, dtb, Do you have another question? Input high threshold is 2. The receiver clock is much simpler, with only one clock, which is recovered from the incoming data. The first 16 rgmi have a defined usage,  while the others are device specific. If you have a related question, please rfmii the ” Ask a related question ” button in the top right corner.
So it is critical to understand each of the delay stages in your target system in order to ensure that the clocks in your RGMII interface are properly skewed. TI, its suppliers and providers of content reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.
Not being a linux expert, I found the following solution – but there might be other solutions.
networking – Clarification on Ethernet, MII, SGMII, RGMII and PHY – Stack Overflow
That makes kinda sence to me – as far as dts files make sense to me: To know the cable speed, the driver will first talk with the real phy over MDIOprobably at phy address ‘1’, and check the speed. Thank you very much.
I try it but nothing changes. Often interfaces to the host processor over something like PCI Express for example.
RGMII Interface Timing Considerations
It should be set to ‘8’ to work with the DTS node I gave you the addresses can be different, but must match.
Rgmiu on this site may contain or be subject to specific guidelines or limitations on use. But I think the dts is missing some entries in order to do so We have detected your current browser version is not the latest one. If you are experiencing one of the following problems, then you probably have an issue with your RGMII interface:. I don’t understand if the interface enabled in the zynq ip core is GMII. The receive clock is recovered from the incoming signal during frame reception.
May 14, Post as a guest Name. How it is different than a MAC chip?