Ekka (Kannada) [2025] (Aananda)

Zynq mdio. 5 English Zynq UltraScale+ MPSoC Processing System v3.

Zynq mdio. 2 release branch. U-boot-xlnx Part Number: DP83867IR My design used zynq platform with DP83867. The detailed explanation of General purpose IO via MIO and Extended MIO in AP SOC Zynq 7000 is given in this lecture. Damage to the input buffer can occur when the limits are exceeded. 8 – ns TGEMRXCKD RXD input hold time 0. Unused Signals I/O Interfaces Wiring Connections MIO-EMIO Programming MIO Pins Example: Program I/O for Controller 1 . 1 2018. 1 2017. 2 My requirement is to implement 2 ethernet controller from PS side. Of these two, GEM 0 can be mapped to the MIO pins where the PHY interfaces. I have a K26 SOM that I have instantiated on a custom board. I am trying to configure the ethernet in RGMII mode but the ethernet does not come up. In general, there is no gentle way to IO operations, one is to do directly to the GPIO register, so that the program is efficient, but written code Difficult; the other is to call the API interface function provided by the SDK tool. I double confirm ×Sorry to interruptCSS Error Now we are trying to design our new custom board. • Two I/O voltage banks ° Bank 0 voltage bank consists of pins 0:15 ° Bank 1 voltage bank consists of pins 16:53 • MIO voltage levels can be programmed per bank. Software programs the routing of the I/O signals to the MIO pins. 5 V. 5 0. I want to us the eth0/1 parts of the PS through a "PMA/PCS or SGMII" block in the PL, but have been unable to get this to work with many different attempts. I read that MDIO clause 45 has to be supported by the MDIO driver and the mac driver, that's why i tried to apply a patch for Hi @fernandohr95nan3 To start off, I can see you are using MIO pins and only MDIO is going through EMIO. Other board has two The purpose of this page is to introduce two methods for interacting with GPIO from user space on Zynq-7000 and Zynq Ultrascale+ MPSoC: the SysFs interface and the Linux kernel drivers (gpio-keys, leds-gpio). Since the PHY is attached to MIO, why are you using MDIO interface only for EMIO? For your other question about using the GMII2RGMII IP, I believe as your PHYs seems to be RGMII compliant MIO instead of EMIO, so that would need GMII2RGMII. ° 1. I know the zynq-7000 ps has RGMII drivers and MDIO drivers, and I assume lwip accesses the MDIO to determine what type of PHY it ismaybe has some chip-specific register settings (or is the MDIO interface so standardized it's always the same register settings)? One thing that kind of The SPI I/O signals can be routed to the MIO pins or the EMIO interface to the PL, as explained in I/O Interfaces . Nov 1, 2023 · MDIO Addresses consists of two stages: Physical Address (PHYAD) and Register Address (REGAD). c driver had the function phy_detection removed. 19. We tried to bring up the Gigabit Ethernet MAC (GEM) with this config Total pages: 260608<p></p><p></p>Kernel command line: console=ttyPS0,115200 noinitrd root=/dev/mmcblk0p2 rw ear<p></p><p></p>lyprintk rootfstype=ext4 rootwait sdhci. When I am trying to use the MDIO interface, on Linux dmesg I am getting the following error: macb ff0c0000. 2 PHY - 88E1512 probably wont need any configuration change - will work exactly as on EVB. 2 2018. After that, lwip should run normally (auto negotiate, transfer data, etc). The MIO pins and restrictions based o The 32-bit AHB master interface is used by the DMA controller to read and write data packets and transfer descriptors. My understanding is that we can use a fixed-link directive in our device-tree in Petalinux. We are able to use them individually in the Bare-metal LWIP application, but we need to use them both at the same time in LWIP. The ping just hangs root@k26c_bringup:~# ping 192. The restrictions are defined in the Zynq 7000 SoC data sheets. See full list on blog. There are two Ethernet ports in this board. This section a AMD Customer CommunityLoading × Sorry to interrupt CSS Error Refresh Jun 30, 2023 · The MIO is fundamental to the I/O peripheral connections due to the limited number of MIO pins. The options are illustrated in section MIO-at-a-Glance Table and in Table: SPI MIO Pins . Mapping 1 Introduction After delivering more than 50 AMD Zynq® UltraScale+TM (Zynq US+) designs in the last 2 years, Fidus can truly say that they are expert implementers of the latest Multi-Processor System On-a-Chip (MPSoC; pronounced em-pee-sok) technology from AMD®. So I tried dumping the registers on the PHY with PHY addr as 0x03 using mii dump. 14 and 4. After some search on webs and device tree modifications, we have succeeded to use dual ethernet for this board. (I couldn't select Ethernet 1-MDIO at the same time. You will now see SPI_0 coming out from the Jan 5, 2023 · Have you ever experienced limitations of the Zynq/Ultrascale MPSoCs from Xilinx when it comes to GEM s and MDIO interfaces? The thing is that only specific GPIO pins can be used for MDIO communication. When Both controllers provide MDIO interfaces, however, only one interface is needed to control both of the external PHYs due to the difference in PHY address. 2 release of Working on a zynq board and Marvell PHY chip is connected to GEM controller. . Using the Zynq internal ILA, we have verified that the clause 22 transfer structure is being respected, using an MDC clock frequency of around 580KHz. The 375 MHz clock for the IP core is provided by Zynq PL The page provides information on U-Boot Ethernet driver for Xilinx devices, including configuration, usage, and troubleshooting. These restrictions and the restrictions for all I/O pins are defined in the Zynq 7000 SoC data sheets The SPI I/O interface signals routing has some options. phy_maint). Can we use the MIO and EMIO pins and dedicate them for any modules of our choice (UART, SPI, I2C)? Is it just that we have to write codes for the interface modules by utilizing any pins and make it work as per our needs? Also if i need 3 to 4 UARTs on the We have an ethernet PHY attached to the Zynq-7000 PS GEM that needs to be put into a different operating mode by writing some specific register values over MDIO. We have been trying to up ethernet solution for those zynq boards. ethernet: Not enabling partial store and forward</p><p Oct 20, 2021 · 2017. Zynq> mdio list eth0: 1 - Marvell 88Q211x PHY <--> ethernet@ff0b0000 Zynq> Zynq> mdio read 0x1 0x0900 0x1 is not a known ethernet Reading from bus eth0 PHY at address 1: 2304 - 0x0 But it seems the mdio read command is In this simple demo, we will see how to manually read the PHY registers over MDIO. As a result the PL contains the GMIITORGMII IP block to do the conversion between GMII and RGMII. Working on a zynq board and Marvell PHY chip is connected to GEM controller. We trying to implement a Gigabit Ethernet interface with an optical SFP transceiver on the Zynq 7015 device. 您好，我们在实现双网口共用MDIO时，设备树如下： gem0: ethernet@e000b000 { compatible = "cdns,zynq-gem", "cdns,gem"; reg = <0xe000b000 0x1000>; status = "okay"; interrupts = <0 22 4>; clocks = <&clkc 30>, <&clkc 30>, <&clkc 13>; clock-names = "pclk", "hclk", "tx_clk"; enet-reset = <&gpio0 0 0>; xlnx,ptp-enet-clock = <0x68e7780>; Jul 13, 2023 · 您好，我们在实现双网口共用MDIO时，设备树如下： gem0: ethernet@e000b000 { compatible = "cdns,zynq-gem", "cdns,gem"; reg = <0xe000b000 0x1000>; status = "okay"; interrupts = <0 22 4>; clocks = <&clkc 30>, <&clkc 30>, <&clkc 13>; clock-names = "pclk", "hclk", "tx_clk"; enet-reset = <&gpio0 0 0>; xlnx,ptp-enet-clock = <0x68e7780>; Mar 30, 2022 · The following table provides PS MIO peripheral mapping implemented on the ZCU670 board. Step 5: Select EMIO instead of MIO to route to the PMOD header. 2 code the Phy is detected. I need to read the registers of Marvell PHY chip, can you guide on this. After the power up phase the Zynq device drives the reset pin of every PHY independently and then it tries to read the PHY Identifier Registers (PHYIDR1 and PHYIDR2). Zynq UltraScale+ MPSoC have two high-speed UARTs (up to 1Mb/s). Since the MIO bank is powered from 1. ) When I use LWIP_echo original source to connect ZYNQ GEM: ff0b0000, phyaddr 0, interface rgmii-id mdio_register: non unique device name 'eth0' I have attached my current device tree below: Summary This application note focuses on Ethernet based designs that use Zynq® UltraScale+TM devices. The Zynq US+ is a heterogenous device consisting of two main elements: A Processing System (PS) and a Programmable Logic (PL) system. I am having trouble trying to figure out how to specify 如题所示，zynq-7000，用的ps的两个ethernet，其中mdio共用，现在在petalinux下默认只配置了eth0，在sys/class/net下有eth1，但是两个网口都不能ping通服务器。 Normally, each pin is assigned to one function. dtsi are correct or should I define gem1 somewhere else? Thanks! ×Sorry to interruptCSS Error <p>Hi All,</p><p> </p><p>I have two Ethernet PHYs controlled by a single MDIO bus. 8V, the RGMII interface uses 1. I have tried the following. Zynq-7000 AP SoC (as well as all 7-Series devices) have the ability to interface to differential signals. 5G Ethernet subsystem IP core [Ref 1]. <p></p><p></p> <p></p><p></p> Z-7020 CL484 device with which we plan to work has 4 PL banks with total of 200 maximum SelectIO pins. Note: An Example Design is an answer record that provides technical tips to test a specific functionality on Zynq-7000. There is also a section on how to read extended register over xsct. I use Vivado 2016. 16. For ease of use, users should use utilities such as mii dump in u-boot or similar in Linux too. 551509] macb ff0e0000. The direction is fixed on inout and I 项目中需要PS端的2个网口，但是zynq仅有一个MDIO，这么来看只能两个PHY公用一个MDIO，或者至少一个PHY不使用MDIO（在mio configuration不选中MDIO即可），但是在实际过程中出现如下问题。 1、两个PHY公用一个MDIO需要在软件上增加哪些内容吗？ Quensition ： When I use ZYNQ-7000 MAC MDIO to read ethernet-phy register, I found that PHY-Maintenance-register (the address is 0xE000B034) always is 0xFFFFFFFF, and I found that the MDIO's digital-wave is not 0xFFFF. Nov 3, 2018 · The Zynq incorporates two independent Gigabit Ethernet Controllers. The GPIO subsystem is documented in the kernel documentation in Documentation/gpio/. 1 内核配置 附注：打开动态调试开关 1. MIO Peripheral Mapping MIO [0:25] Bank 500 MIO [26:51] Bank 501 MIO [52:77] Bank 502 0 QSPI_LWR 26 PMU IN Jun 16, 2023 · 2023-06-16 Version 3. This blog post focuses specifically on the Zynq SoC’s Multipurpose IO (MIO) block. I verified the registers from u-boot and they look ok. CAUTION! The allowable Vin High level voltage depends on the settings of the slcr. When using the default device tree that gets generated by the Xilinx SDK there's no Tool/software: Linux We used zynq platform and DP83867IRPAPR for Etherent function. 2设备树配置 二、内核中PHY的运行流程 1、mdio总线初始化 2、macb设备初始化 2、PHY驱动匹配 3、PHY的LINK阶段及初步自适应 4、PHY的循环任务 总结 Jun 22, 2022 · ZYNQ GEM: ff0e0000, mdio bus ff0e0000, phyaddr 1, interface rgmii-id Could not get PHY for eth0: addr 1 I am interested to know how to configure the phy correctly. The I/O peripheral signals can also be routed to the PL (including PL device pins) through the EMIO interface. I try to update to u-boot-xlnx 2021. So please excuse wrong questions. See attached pictures. There are up to 78 MIO ports available from the processing system. One exception to this is the dual use boot mode strapping resistors (MIO [2:8]). Any ideas how to achieve this in SDK? Dec 23, 2024 · Table 1. Vivado Version is 2019. I can build uboot but when it starts So we are trying to configure the external PHY to work without any configuration over the MDIO. 12 in hope of a solution but the problem remains. By default it selects MIO. The switch is connected via RGMII and MDIO (port 5 on the switch). The PS contains “hard” elements (meaning elements that cannot be reconfigured like they can be in the PL section) such as ARM Processors The Macb Driver page on Xilinx Wiki provides detailed information about the Macb driver, its features, and configuration instructions for Xilinx hardware. The Zynq UltraScale+ MPSoC Processing System core allows you to select GPIO up to 96 bits. 9V is provided in bank 501 (PS_MIO_VREF). The range of devices in the Zynq UltraScale+ MPSoC family allows designers to target cost-sensitive as well as high-performance applications from a single platform using industry-standard tools. This whitepaper is targeted at people who are generally familiar with the An example Ethernet communications wiring connection is shown in This Figure Figure 16-6: Ethernet Communications Wiring Connections X-Ref Target - Figure 16-6 All Ethernet I/O pins routed through the MIO are on MIO Bank 1 (see Table: Ethernet RGMII Interface Signals via MIO Pins ). 3 BOARDS AND KITS PetaLinux Processor System Design And AXI Embedded Linux Zynq UltraScale+ MPSoC Embedded Systems Zynq UltraScale+ MPSoC Boards and Kits 2017. 1. My design has able select both Gigabit Ethernet Controller (GEM0 and GEM1) using PS MIO pins. Aug 19, 2020 · 文章浏览阅读6. The switch is connected to the Zync via RGMII with the GEM0 MII interface routed through the PL. 1版本的内核增加补丁实现的双网卡共享MDIO。 May 11, 2022 · The EMIO for I2C, SPI flash memory, Ethernet management data input/output (MDIO), Arm® JTAG (PJTAG), SDIO, GPIO 3-state enable signals are inverted in the Processing System IP core. Regards Hi, As far as I understand the zynq platform provides the possibility to route I/O peripherals through the PL (programmable logic) and it is called EMIO. This page explains the difference between MIO and EMIO in Zynq devices, focusing on their usage and configuration. 5G Ethernet PCS/PMA IP core in 1000BASE-X mode (as described in the Xilinx application note XAPP1082 – see the blue coloured path in the image provided below). <p>Hi,</p><p>We have custom hardware, roughly based on a ZCU102, which currently runs u-boot from a 2017. The board hardware must connect each strapping pin, MI Dec 2, 2022 · Part Number: TXS0102 Hi, We are using the TI TXS0102 device on the MDIO interface between Xilinx Zynq Ultrascale+ and TI DP83867 PHY with TI TXS0102 device. 0) from the Xilinx v2021. Basics The GEM module implements a 10/100/10 00 Mbps Ethernet MAC compatible with the IEEE 802. I thought it would be good in this blog to provide a little more detail on the Zynq SoC and how it works. The MIO-at-a-Glance table, the interface routing table, and these pin assignment considerations are helpful when doin Oct 23, 2024 · OK</p><p> </p><p> libphy: MACB_mii_bus: probed</p><p> [ 3. I am having a problem in understanding the correct way to code this configuration in the device tree source. Xilinx-Rebase in both cases. </p><p> [ 3. Q : which setting is recommended for SD-card interfacing, and what exactly is the difference between 'fast' and 'slow', does this setting configure a different driver on the Sep 23, 2021 · Description Example that flashes LEDs on the ZC702: 2 MIO LEDs, 4 EMIO LEDs and 4 AXI LEDs. ethernet-ffffffff: MDIO device at address 9 is missing. Within each domain, each MIO is independently programmable. I am trying to establish a network link between a laptop and the board. 5V/3. The zynq_gem. These designs spanned multiple applications and markets. I need to set a GPIO pin from FSBL. 2-final. Mar 25, 2019 · Dear Sir, I have designed (first Design )a Board with Zynq Z7045 FFGG900I-2 part with Schematic check list (excel sheet )has suggested many inputs according to that i have made connection concern is Dual ethernet on th PS Side, Based on the AVENT REP inputs i have made PS Side MDC and MDIO Pin conncetion directly with 2 marvell PHY Ics Like Parallel Connection when I started Programming in the I have a custom Zynq-7000 platform with GEM0 connected to a Marvell Link Street 88e6176 switch over MDIO running the Xilinx 2022. It is this interface block that provides the Zynq 项目中需要PS端的2个网口，但是zynq仅有一个MDIO，这么来看只能两个PHY公用一个MDIO，或者至少一个PHY不使用MDIO（在mio configuration不选中MDIO即可），但是在实际过程中出现如下问题。 Jul 30, 2025 · Creating a Zynq UltraScale+ system design involves configuring the PS to select the appropriate boot devices and peripherals. Note: The SysFs driver has been tested and is working. I selected ethernet 0 (MIO 16-27) and 1 (MIO 28-39) in "ZYNQ processing system" and Ethernet 0-MDIO (52-53). The patch that was supplied does not apply cleanly to v2021. \\n We have produced a custom board and chose the ADIN1300 PHY for Ethernet communication, but are now unable to read registers using the MDIO interface. Mar 7, 2025 · ZYNQ GEM: e000b000, mdio bus e000b000, phyaddr 0, interface rgmii-id mdio_register: non unique device name 'eth0' No ethernet found. RGMII Interface Symbol Description 1 Min Max Units TDCGEMTXCLK Transmit clock duty cycle 45 55 % TGEMTXCKO TXD output clock to out time –0. but for MDIO pins, it can select only for any one of the Zynq TRM says max SDIO clock speed is 50MHz, however the Silica Picozed board modified this 50MHz to 25MHz in their last (v1. 3 standard. However, it's not clear to me if we can configure things such that the PL controls selective PS_MIO pins as in the bottom pic? A summary of the dedicated PS signal pins is shown in Table: PS Signal Pins . and i need to have the ability to configure both swithces via MDIO bus. Oct 24, 2024 · 摘要 本文参考芯片手册详细介绍了ZYNQ7000芯片的信号、接口与引脚，结合芯片封装说明了引脚的类别与分布，并说明了MIO与EMIO的区别。 hi, we have two custom boards that both based on zynq7045 SoC and petalinux is v2015. The following is my design: GEM2 gmii and mdio interfaces are directly connected to the gmii_to_rgmii IP core as it is in PG160 suggested. Zynq PS MIO supply vs IO voltage Hi all, I have a Zynq-7000 design that currently has MIO bank 1 powered by a 2. Differential signals are pretty slick for a lot of reasons including noise immunity, speed, and reliability. By Adam Taylor The last few blogs in the MicroZed Chronicles have focused upon getting the MicroZed up and running and looking at the Zynq SoC’s XADC. Writing to this register starts a shift operation which is signaled as complete when the bit gem. net If you are using the copper interface, there is a chance you could connect to a 10M link partner, and then your Zynq will need to know that. Now make a connection between “GMII” of the GMII-to-RGMII block and GMII_ETHERNET_1 of the Zynq PS. 开发平台：ZYNQ-7020<p></p><p></p>目前已经基于2016. 541269] macb ff0b0000. Dec 20, 2018 · Abstract: The tutorial provides a brief overview of available input/output peripherals (IOPs) and their relation with multiplexed input/output (MIO) and extended MIO (EMIO) in Zynq 7000. Step 6: Set the Slave select SS [0] to also be EMIO Step 7: Select " Ok " and " Save " the configuration. Table: MIO-at-a-Glance presents MIO information in a compact format for easy reference; the gray boxes represent signals that are not usable in devices with CLG225 packages (7z010 dual core and 7z007s single core devices). 168. I find two cases. Apr 6, 2020 · 2. 01 release and I am trying to bringup uboot v2021 from the standalone sources (no petalinux) on the same custom board. Zynq: MIO, Emio, IO difference and flexible use Zynq: MIO, Emio, IO difference and flexible use When using Zynq ARM Cortex-A9 platform, it is the first to operate the IO. The wizard allows you to choose the peripheral ports to be connected to MIO ports. There are so many more MIO's for the Zynq\+ that they now show only a simple interface pin number, without a signal name. They are sampled by the hardware soon after PS_POR_B deasserts and their values are written to software readable registers for use by the BootROM and user software. 1 PHY - 88E1512 will have to be configured as RGMII to SGMII protocol converter. 4 2018. For more information visit: https://fpg Hi Myeongsu Han, As mentioned in the MACB driver page Macb Driver - Xilinx Wiki - Confluence (atlassian. The MDIO interface clock (MDC) for G Dec 11, 2023 · Part Number: DP83867IR Hi , We are trying to bring up dp83867IR on a ZYNQ MPSOC platform, But i am getting PHY is not detected message. The vmode1 pin is also pulled down to set boot up levels to 2. They implement a 10/100/1000 half/full duplex Ethernet MAC. Unlike most phy only understands clause 45 MDIO. SLIDE 1 shows the reset phase and the delay before accessing the MDIO registers of PHY0. 10. It also describes the use of 1000BASE-X, SGMII, and 10GBASE-R physical interfaces using high-speed I have a custom ZynqMP board design working with u-boot-xlnx 2017. I am attempting to set up a system using a Zynq-7 and a Marvell 88e1111 PHY, connected via SGMII into LVDS pins of the Zynq (the MDIO pins are also connected to LVDS). 0 compatible. The MIO interface allows the ARM to access external pins without routing signals through the FPGA. The general routing of signals is explained in Signals, Interfaces, and Pins . I build my Image with Yocto and already tried several Kernels 4. As per the documents, LWIP only supports one Eth port at a time, We need your help in achieving dual-port ethernet configuration and usage. 1 Selecting your Device Following on the success of the 7-series Zynq device, Zynq US+ is the latest MPSoC from Xilinx. 1), because of 'issues with reliable boot' Q: is there any know issue with a 50MHz SDIO clock? Apr 19, 2023 · If the output pin is set to any of the other seven GPIO pins - the ones set in the Zynq subsystem with direction 'inout' - then the read back of the pin always matches the write. 5V supply. Opening the Zynq UltraScale\+ MPSoC IP core, gives access to Peripheral -> Low Speed -> I/O Peripherals -> GPIO and then the GPIO pins. 8 and 2. 总结： 本方案详细介绍了如何在ZYNQ平台上实现双网口配置，其中MDIO接口被两个PHY芯片共享，而每个PHY芯片的复位GPIO是独立的。 Nov 11, 2022 · MIO是ZYNQ芯片PS端的基础外设IO，可以连接诸如SPI，I2C， UART，GPIO等，通过Vivado软件设置，软件可以将信号通过MIO导出，同样也可以将信号通过EMIO（后续试验会介绍EMIO）连接到PL端的引脚上。 Hello, We have a custom board that contains a zynq 7000 series FPGA and dual ethernet port with shared MDIO lines. 533394] mdio_bus ff0b0000. Default LWIP PS GEM implementation searches from PHY from address 31 down to 0 to detect a PHY connected over its MDIO. 5 LogiCORE IP Product Guide IP Facts Introduction Features Overview Feature Summary Unsupported Features and Known Limitations Licensing and Ordering Product Specification Functional Description Connectivity I/O Peripherals MIO Ports Extended MIO Ports AXI4 I/O Compliant 3、但是，从MAC的PHY Maintenance寄存器读取时，发现该寄存器常为0xFFFFFFFF。 截图如下： 4、综上，现象为MAC成功通过MDIO发出数据，PHY器件也成功通过MDIO发出数据，但是MAC无法从MDIO上读取数据，特此咨询各位老铁，哪里配置的有问题。 Figure 1: Zynq UltraScale+ MPSoC Ethernet Interface Note: The PS-GEM3 is always tied to the TI RGMII PHY on the ZCU102 evaluation board. csdn. I used u-boot mdio command to debug, but the device no any reply. In the actual use, Zynq divides GPIO Hi,<p></p><p></p>I am working in petalinux and trying to activate both ethernet interfaces on my Zynq device: one with MIO+MDIO and another with EMIO+MDIO+GMII_to ZYNQ GEM: e000b000, phyaddr 0, interface rgmii-id mdio_register: non unique device name 'gem' Hit any key to stop autoboot: 0 I built the project using Vivado, SDK, Petalinux all 2016, and I tested "Avnet-Digilent-ZedBoard-v2016. The At-A-Glance MIO table of the older Zynq-7000 showed the interface signal names for each MIO pin, on an interface-by-interface basis. 15). <p></p><p></p> <p></p><p></p> I've already updated to linux-xlnx 3. Zynq 7000 SoC Documents 7-Series FPGA Documents USB Specifications Chapter Nomenclature Notices 7z007s and 7z010 CLG225 Devices Chapter Overview Functional Descriptions and Programming Guides Functional Description Controller Flow Diagram DMA Engine Data Transfers Protocol Engine Protocol Engine Functions Port Controller ULPI Link Wrapper I am trying to configure my device tree to utilize a single Marvell mv88e6176 switch connected to GEM0 on my board. The MIO signal standard is also set to 2. It can operate zynq will have mdio bus to configure 3 PHY modules, 1 ethernet switch and 1 PCIe switch. I'm using the Xilinx Kernel (5. Step 3: Select SPI0 Step 4: Enable SPI. The interface is AMBA 3. Table 1. net), The gem0 needs to come up before gem1 and stay up (because the MDIO interface is expected to be up first; otherwise, the dependent MAC-PHY link (gem1-phyb) will come up on next ifconfig up/down). In general, there is no gentle way to IO operations, one is to do directly to Hello, I'm a newbie with zynq 7000 soc. My custom board include xc7z045ffg900-1 chip. 5Mhz。ETH_MDIO为双向数据引脚，既用于发送数据，也用于接收数据。 MDIO接口的读写通信 Oct 1, 2019 · mdio_register: non unique device name 'eth0' ZYNQ GEM: ff0e0000, phyaddr 1, interface rgmii-id mdio_register: non unique device name 'eth0' No ethernet found. Feb 25, 2022 · For all the zynq-7000 boards I've used, the lwip/tcp echo server example code just kind of magically works. PFA schematic for further reference. Mar 9, 2021 · 文章浏览阅读1w次，点赞12次，收藏77次。本文详细介绍了Zynq7020的MIO配置寄存器，包括MIO与EMIO的区别、管脚复用、电压等级、GPIO硬件描述与寄存器，以及如何在Vivado工程中进行配置。重点讲解了GPIO的使用，如配置步骤、寄存器操作和代码实例，适合嵌入式开发人员参考。 The AXI Ethernet Standalone Driver documentation provides details on setup, usage, and features for efficient ethernet communication in Xilinx systems. Zynq part number is xc7z100ffg1156-2 (active). The 1000BASE-X/SGMII PHY and the GTH transceiver are a part of the AXI Ethernet core for 1G PL Ethernet link, which uses the AXI 1G/2. 2. Case 1: get the same date for 图 24. I am currently patching the psu_init* files after creation (The mask write), though would expect that I could control this from Vivado. As of now, I am able to get the eth0 interface up, but unable to ping another machine in the subnet. <p></p><p></p>（2）使用kernel 2017. The routing options include multiple positions in the MIO pins. </p><p> </p><p>My understanding is that the existing coding is not correct because, when u-boot loads, I am getting the following message:</p><p> </p><code>ZYNQ GEM Hi, Zynq overview document states that there are 54 MIO pins but with the use of EMIO pins, it is possible to obtain up to 118 GPIO pins. See the Zynq UltraScale+ Device Technical Reference Manual (UG1085) for more information on PS MIO peripheral mapping. 1 Jul 10, 2018 · ZYNQ下PS端有两个网口，GEM0、GEM1，GEM0默认通过MIO端口接到外部PHY。 GEM1通过EMIO连接芯片外部PHY。 一、FPGA在搭建block design的时候选中eth1，同时选中eth1的MDIO。 二、系统识别GEM1的时候，根据DT可能需要访问MDIO，也可能不需要访问。 1. Feb 23, 2023 · Hello, I kindly request support with interfacing a Zynq device to an ADIN1300 PHY. According to the product guide PG160, this is a typical usage of this IP core. 3 volts ° CMOS single e Jun 30, 2023 · Normally, each pin is assigned to one function. 8V HSTL Class 1 drivers. It is not controlled MDIO on u-boot. 1 kernel (5. ethernet eth0: Could not attach PHY (-22) My device tree entry for this AMD Customer CommunityLoading × Sorry to interrupt CSS Error Refresh Apr 19, 2016 · Hello!<p></p><p></p> <p></p><p></p> I've a problem with the second ethernet (eth1) port of the Zynq on my custom board where eth1 is routed via EMIO to a Micrel Phy. PHY0 doesn't always answer. If I re add this function in the 2021. There are a few ways the Zynq could figure this out: MDIO, in-band status, or monitoring the frequency of the RX_CLK (wont give you link up, or duplex status, only speed). After that, a comprehensive detail of general purpose input/output (GPIO), which is one of the available IOPs in Zynq 7000, and its programming via MIO and EMIO is explained. A tip can be a snippet of code, a snapshot, a diagram or a full design implemented with a specific version of the Xilinx tools. 5 ns TGEMRXDCK RXD input setup time 0. For this I/O standard an external reference of 0. One board has two marvell PHYs which are connected to PS MIOs (gem0, gem1) and shared SMI bus (MDC, MDIO). Do you need to run Ethernet applications on a Zynq MPSoC device and consider using a Gigabit Ethernet MAC (GEM) core in the PS rather than using the PL logic? If so, this blog entry will provide guidance and some debugging tips which might help you design with the GEM core. I figure I am probably getting the configuration wrong (of the IP or Jun 16, 2023 · 2023-06-16 Version 3. bsp" and it works fine with my network (DHCP). dts). While each Zynq UltraScale+ MPSoC contains the same PS, the PL, Video hard blocks, and I/O resources vary between the devices. 8 – ns TMDIOCLK MDC output clock period 400 – ns TMDIOCKL MDC low time 160 – ns TMDIOCKH MD May 8, 2023 · VDDIO is 2. The addresses of the PHYs is 0 and 1. I'm wondering if the SDIO interface pins in the Zynq IP config dialog should be set 'slow' or 'fast'? I'm using a 50MHz SD clock : Picozed board def file sets it to 'slow' : but Zedboard for example sets these to 'fast' . Configuring ZYNQ7 Processing System Setting up Zynq Processing system to use SPI,I2C, and UART modules Zynq: MIO, Emio, IO difference and flexible use When using Zynq ARM Cortex-A9 platform, it is the first to operate the IO. IMPORTANT: There are several important MIO pin assignment considerations. Refer to section PS-PL MIO-EMIO Signals and Interfaces for background information. 9k次。本文详细介绍了在Zynq平台中MDIO接口的配置方法及应用限制，包括如何实现两个PHY共享一个MDIO，以及在不使用MDIO时的替代方案和配置建议。 zynq仅有一个MDIO，只能两个PHY公用一个MDIO，或者至少一个PHY不使用MDIO（在mio configuration不选中MDIO即可）。另一个可以一个通过EMIO口来接MDIO。 另外，MDIO就是配置用的，一般默认配置下也可以工作。 如果不用MDIO，那么在Vivado ZYNQ配置页面，可以不用勾选，这时无法自适应网速，在SDK里的BSP的LWIP的 Aug 24, 2023 · Step 2: Add and open a Zynq UltraScale+ MPSoC IP in the design. 3V by a bootstrap resistor. The UART controller is a full-duplex asynchronous receiver and transmitter that supports a wide range of programmable baud rates and I/O signal formats. Default Input Signal Routing: If the I/O signals are not routed to a set of MIO pins (MIO_PIN_xx register prog I am using a gmii_to_rgmii IP core to connect a PS GEM to RGMII Pins at the PL side on a Zynq Ultrascale+ device (ZU2). In some board configurations, it may be desirable for users to specifically associate a PHY with a given GEM (for example when more than one PHY is connected to the MDIO but GEM0 needs to be used PHY@2). It describes the use of the gigabit Ethernet controller (GEM) available in the processing system (PS) through the extended multiplexed I/O (EMIO) and multiplexed I/O (MIO) interfaces. To start with, as long as the PS peripherals and available MIO connections meet the design requirements, no bitstream is required. 2，经过打补丁之后，提示找不到PHY芯片：<p></p><p></p>Board: Xilinx Zynq<p></p><p></p>I2C: ready<p></p><p></p>DRAM: ECC disabled 1 GiB<p></p><p></p>MMC: sdhci@e0100000: 0 (SD)<p></p><p></p>SF: Detected s25fl256s_64k with page size 256 Bytes, erase size 64 KiB, total 64<p></p><p></p>MiB<p></p Jun 16, 2023 · 运行linux系统发现每个mdio单独带一个phy时候，内核能够匹配PHY驱动，但是我的项目需要两个PHY都接到同一个mdio，参考网上的说法下载了内核补丁0001-net-macb-Add-MDIO-driver-for-accessing-multiple-PHY-. patch，从网上看到好像还需要uboot补丁，但是一直没有找到。 No ethernet found. debug_quirks=64 cma=256M<p></p><p></p>PID hash table entries: 4096 (order: 2, 16384 bytes)<p></p><p></p>Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)<p></p><p></p We have a custom FMC card with an Marvell 88Q2112 Single Pair Ethernet Phy, which is configurable via MDIO. We can have PS periphs access MIO pins (top-left pic), or optionally go to the PL via EMIO (top-right). I looked at a similar example here and tried this solution. net_status [phy_mgmt_idle] is set. 1 (64 bit) and SDK - standard alone. I narrowed down the problem to a commit that happened right after the 2019. May 23, 2022 · Part Number: DP83822HF Hello, I am new to ethernet and PHY. All the on-board peripheral devices and bus controllers use MIO pins to connect to external devices and connectors, and as the name AMD Customer CommunityLoading × Sorry to interrupt CSS Error Refresh The PS MIO I/O buffers are split into two voltage domains. So, I could use maximum of 64 PL pins as PS GPIOs. Hi I'm trying to bring up a custom board with a XC7Z020CLG484 device but it seems I can't configure a valid device tree to be able to use an ethernet connection with a micrel ksz9031 phy connected to a "gmii-to-rgmii" ip block tied to the EMIO of the Zynq-block, see attached vivado screenshot for more details. CAUTION! For MIO pins, the allowable Vin High level voltage depends on the settings of the slcr. I am using GEM1 / GTLane1 to connect to the Ethernet port through a GPY111 PHY chip. This chapter guides you through creating a simple PS-based desi Configuring MIO pins for GPIO The ZYNQ device on the Blackboard has 54 externally connected I/O pins that are driven from the MIO (or Multiplexed I/O) interface. 2 2017. Zynq> mdio list eth0: 1f - Generic PHY <--> ethernet@e000b000 Zynq There are 7 boot mode strapping pins that are hardware programmed on the board using MIO pins [8:2]. 1 release. Our hardware set-up is as In this simple demo, we will see how to manually read the PHY registers over MDIO. We need to add dp83867 driver in petalinux-config -c kernel and write the corresponding device-tree due to the characteristics of network device (. can please someone direct me to any documentation on how to Dec 8, 2015 · Now you should see two extra ports on the Zynq PS block: GMII_ETHERNET_1 and MDIO_ETHERNET_1. My guess is that Jun 30, 2023 · Refer to the applicable Zynq 7000 SoC data sheet for electrical specifications. MDIO最多可以通过地址区分挂载32个设备，你这共用的想法没问题。 但是这两个控制器都是RGMII接口的MAC，外接的是PHY芯片还是交换机芯片，各自的设备地址是什么，MDIO总线是怎么连接的。 Jun 30, 2023 · The PHY connected to the controller is initialized through the available management interface (MDIO) using the PHY maintenance register (gem. It was what was there when I took over the project and worked until I patched my kernel to work with 2 phys on a single mdio. Given the large number of differences in 2017 and 2021 versions, I am basing the initial effort off of the ZCU102 evaluation board. I am trying to interface the above part with Zynq 7000. 3 MDIO接口示意图 MDIO接口也称为SMI接口（Serial Management Interface，串行管理接口），包括ETH_MDC（数据管理时钟）和ETH_MDIO（数据管理输入输出）两条信号线。ETH_MDC为ETH_MDIO提供时钟，ETH_MDC的最大时钟不能超过12. 5 English Zynq UltraScale+ MPSoC Processing System v3. Our plan is to use the PS Ethernet block GEM1 through the EMIO interface, along with the 1G/2. MIO-EMIO Signals Gigabit Ethernet Controller Introduction Block Diagram Features System Viewpoint Clock Domains Notices It reports: "ZYNQ_GEM: ff0c0000, mdio bus ff0c0000m phyaddr 7, interface rgmii-id Incorrect interface type" is the definition in pcw. This is useful to gain access to more device pi For all the zynq-7000 boards I've used, the lwip/tcp echo server example code just kind of magically works. … Jun 16, 2023 · The Zynq UltraScale+ MPSoC design tools are used to configure the core MIO ports. I know the zynq-7000 ps has RGMII drivers and MDIO drivers, and I assume lwip accesses the MDIO to determine what type of PHY it ismaybe has some chip-specific register settings (or is the MDIO interface so standardized it's always the same register settings)? One thing that kind of PL access to PS MIO pins Looking into the MIO pins on the Zynq. Jun 20, 2025 · 文章目录 ZYNQ系列文章目录 前言 一、关于PHY的配置 1. Make a connection between MDIO_GEM of the GMII-to-RGMII block and MDIO_ETHERNET_1 of the Zynq PS. Nov 26, 2024 · Optimize MIO on AMD Zynq™ UltraScale+™ platforms with expert-led strategies for efficient embedded system design. ZYNQ GEM: ff0b0000, mdio bus ff0d0000, phyaddr 2, interface sgmii mdio_register: non unique device name 'eth0' Hit any key to stop autoboot: 0 SF: Detected n25q1024a with page size 512 Bytes, erase size 128 KiB, total 256 MiB device 0 offset 0x140000, size 0x1600000 SF: 23068672 bytes @ 0x140000 Read: OK Mar 4, 2005 · Part Number: DP83867IR Hi, We just installed DP83867IRRGZ on our custom board with Zynq FPGA. ethernet eth0: Cadence GEM rev 0x50070106 at 0xff0b0000 irq 37 (ea:96:48:b9:aa:58)</p><p> [ 3. 5/3. Yes it is 64bit wide interface. The MIO-at-a-Glance table, the interface routing table, and these pin assignment considerations are helpful when doin Explore advanced strategies for Multiplexed Input/Output (MIO) optimization on AMD Zynq UltraScale+ MPSoC and RFSoC platforms. Here is Uboot logs: This page provides information about the U-Boot GPIO driver for Xilinx devices, including its features and usage instructions. 5 LogiCORE IP Product Guide IP Facts Introduction Features Overview Feature Summary Unsupported Features and Known Limitations Licensing and Ordering Product Specification Functional Description Connectivity I/O Peripherals MIO Ports Extended MIO Ports AXI4 I/O Compliant . 2 but the new u-boot is not able to detect the Ethernet Phyter. and need to use 2 ethernets at a time in my application. 5V in vivado. With a standalone executable both TX and RX are working but <u>on Linux TX isn't working</u>. ZYNQ GEM: ff0e0000, phyaddr 1, interface rgmii-id mdio_register: non unique device name 'eth0' After when we check the dmesg on Linux we obtain: Code Select Dec 21, 2023 · 本文围绕FPGA以太网通信展开，介绍了借助PHY芯片实现以太网通讯，阐述了以太网、RJ45接口等概念。详细讲解了PHY芯片的地址、复位、寄存器，以及MDIO接口的读写时序。还说明了硬件电路，给出使用开发板完成MDIO接口读写测试实验的任务，最后对初学者提出学习建议。 截图如下： 4、综上，现象为MAC成功通过MDIO发出数据，PHY器件也成功通过MDIO发出数据，但是MAC无法从MDIO上读取数据，特此咨询各位老铁，哪里配置的有问题。 Oct 24, 2014 · Hello, I have one very basic question. Zynq> mdio list eth0: 1 - Marvell 88Q211x PHY <--> ethernet@ff0b0000 Zynq> Zynq> mdio read 0x1 0x0900 0x1 is not a known ethernet Reading from bus eth0 PHY at address 1: 2304 - 0x0 But it seems the mdio read command is I know the mdio node is missing in what I posted. However, the flow below shows how this can be done simply via devmem incase such utilities are unavailable. I cannot to find a place to control the direction. MIO_PIN_xx [IO_Type] and [DisableRcvr] bits. 3 Evaluation Boards Knowledge Base Files (5) Download This problem occurs because there is no board in the zynq-7000 series that refers to the dp83867 device.