Linux device tree sfp. Optional properties (for MAC):
Hi @sonminhmin8 .
Linux device tree sfp. Refer to Device Trees for more information.
Linux device tree sfp I cannot also ping with fm1-mac3 (like modification to device tree or FMan1 Microcode, etc) to establish the ethernet links? Any directions will be helpful. Patch existing Install U-Boot Tools and Device Tree Compiler; Debian / Ubuntu: sudo apt install u-boot-tools device-tree-compiler. gz : Open the Linux Device Tree socfpga_arria10_ghrd. The extra eth connections come up in Petalinux with ip -s addr but there are no packets received and when I look at the reference clock in the Zynq it has no waveform i. While booting-up, the respective drivers for all on-chip blocks of an SoC and off-chip peripherals interfaced to it need to be "probed" i. In short, whenever a standardized device tree node is designed for a new device, it is called a device tree binding for that device and all of the properties and their meaning should be documented. li@xxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Srinivas Kandagatla <srinivas. loaded and called. and how to enable the device tree for this so that my DAC device should be detected by Linux . dtb, which is easy to understand with a text editor. In the source code of Linux kernel, I did not find the relevant driver for SFP in the directory of iic, but I found the driver module for SFP in the network driver. Linux Device Tree: [PATCH mvebu-dt64] arm64: dts: armada-3720-turris-mox: add 3W power capability to SFP cage. For those reading this, the "Device Tree" is a specification/standard for adding devices to A devicetree is a tree based data structure containing nodes, which describe the overall system and the physical devices, present on the hardware platform (Beaglebone, RaspberryPi etc). To avoid hardcoding hardware specifics in the kernel module one of the entries in device tree has a list of cells that describe mappings of Hi @colombini_lucaolo2 ,. So, the For this perticular example, Jonathan Ben-Avraham's explanation is correct. I have a problem with my eth2 ( renamed sfp1 in my DTS). The & in device tree files has two meanings: one for items in an array, and another for items outside an array. kandagatla@xxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Shawn Guo After successful compilation of linux kernel image , we will run of PTP4L with hardware Time Stamping feature on the Ethernet interfa ce. It is applicable to Single Pair Ethernet (1000/100/10Base-T1) and other PHY types, including 1000Base-T, where it controls whether the PHY should be a master (clock source) or a slave (clock receiver). An SFP module is connected to its SGMII ports (S_in, S_out), while MDI ports remain unconnected. the Design is OK but when it Comes to the Kernel Device list of devices "spidev" was not found i have followed the above procedure but also the spi device is not showing in the "/dev/" list can you help me with this problem Linux Device Tree: [PATCH v5 1/2] dt-bindings: nvmem: Add t1023-sfp efuse support DTS 是为 Linux 提供一种硬件信息的描述方法，以此代替源码中的 硬件编码 (hard code)。DTS 即 Device Tree Source 设备树源码， Device Tree 是一种描述硬件的数据结构，起源于 OpenFirmware (OF). Linux and the Devicetree; Open Firmware Devicetree Unittest; Devicetree Overlays¶ Linux kernel source tree. to get the desired accuracy of 10 ns. But yes SPI and I2C will be needed to add in DTS (Device Tree Source) file. 810928 diff mbox series. my particular case is not that relevant because meanwhile I have observed the same behaviour with other nodes. I like to use pin 4(input) and 33(output). 1+gitAUTOINC+252758eb1f-r0 do_configure: Error: Could not find selected device tree: The meaning of reg depends on the type of bus the device is connected to and is documented in the device tree binding for the bus. The PHY specific initialization is handled by the phylib subsystem in the Linux driver (macb), and Add device-tree binding documentation SFP transceivers. Tool; Product Forums. com> Hi, I'm trying to get the AXI ethernet subsystem IP to work with an SFP module. 1. How does one list the compiled devices from the device tree? I want to see if a device is already supported. ciornei@nxp. char *alias. sudo apt-get install device-tree-compiler dtc -I dtb -O dts -o a. org Subject: [PATCH net-next 0/7] net: sfp: improve high power module implementation; From: "Russell King (Oracle)" <linux@xxxxxxxxxxxxxxx>; Date: Wed, 19 Oct 2022 14:28:20 +0100; Cc: Andrew Lunn <andrew@xxxxxxx>, devicetree@xxxxxxxxxxxxxxx, Eric Dumazet <edumazet@xxxxxxxxxx>, Heiner Kallweit <hkallweit1@xxxxxxxxx>, Krzysztof Kozlowski I currently attempting to implement the mma8452 driver for my mma8451Q accelerometer by adding it to the the Linux Device Tree. 4 Apply FSBL patch Refer to the AR 66006 for configuring the SFP and SI5324 # SPDX-License-Identifier: (GPL-2. Then I use Planet MGB-TLX Transceiver to convert the 1000-Base-FX to SFP. Versal Adaptive SoC CCIX-PCIe Module (CPM) Root port Linux driver • Subject: [PATCH] arm64: dts: lx2160a-clearfog-itx: add SFP support [*experimental*]; From: Russell King <rmk+kernel@xxxxxxxxxxxxxxx>; Date: Tue, 09 Mar 2021 16:36:58 +0000; Cc: Li Yang <leoyang. it can be fully featured IPv4 router with NAT or just plain bridge mode where "ethernet data packets" (those which are not part of ISP configuration protocol) DTS即Device Tree Source 设备树源码, 是一种描述硬件的数据结构DTS的加载过程 用户根据解自己的硬件配置和系统运行参数，编写DTS文件DTC(Device Tree Compiler)将DTS文件变成适合机器处理的DTB文件(Device Tree binary )系统启动时，通过bootloader的交互式命令加载DTB到内核Device Tree描述的信息CPU的数量和类 I spent a couple of weeks working on this and I think I have the device tree for the PHY, SI5345 and the I2Cs which control the SFP socket pretty much worked out but I never got it to work. Overall, this supports: * switching the serdes mode at the NIC driver * controlling autonegotiation and autoneg results * allowing PHYs to be hotplugged * allowing SFP modules to be hotplugged with proper link indication * fixed-mode links without involving phylib * flow control * EEE support * reading SFP module EEPROMs Overall, phylink I have some linux kernel & SFP/I2C driver issue. However, I have been unable to come up with an acceptable device tree binding which won't fail the petalinux-build process. So, this means that your DDR is starts at address 0x20000000 and has a size of 2GB. 4 03/27/12 expansion-rom-version: bus-info: 0000:02:00. 1. The unit-address component of the name is specific to the bus type on which the node sits. kandagatla@xxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Shawn Guo Open Firmware and Devicetree¶ Kernel Devicetree Usage¶. I plan to load the bitstream and the dtbo using the xmutil utility which comes with the Below are the modification in this TRD for linux-kernel, rfdc drivers, rftool, rfdc example, trd-autostart applications and device tree on top of 2021. org has a few wikis that should help, like Device Tree Linux and Device Tree Usage and Device Tree Reference. Please help me initialize SFP linux: device-tree, kernel driver on zcu102. As far as next part of your question is concerned that how the Kernel get parameters, it is as easy for a driver to use api "of_get_property" to get any data out of device When ethtool is installed you can simply use: $ ethtool -i enp2s0 | grep driver | awk '{print $2}' r8169 where enp2s0 is the device name. FIT image file is able to generated by mkimage (*1). ethernet sfp1: PHY Linux device tree compatible property and driver probe with same pin different chip Hot Network Questions Tables: header fill with multirow I think the question is more about the &hdmi part of the example, using an & reference for a node name in particular. Page generated on 2024-12-12 21:01 EST. li@xxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, Jon Nettleton Linux Kernel Documentation. We understood that, RJ45 based(GEM3) is not feasible for Precision Time Protocol Implementation and we are proceeding with GEM0(SFP) based interface. ciornei@xxxxxxx>; Date: Mon, 4 Jul 2022 16:46:04 +0300; Cc: robh+dt@xxxxxxxxxx, linux@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, Ioana Ciornei <ioana. If OEM vendor of GPON > > SFP stick did not locked it, you can connect to this "computer" via > > telnet or web browser and configure some settings, including GPON stuff > > and also how GPON network is connected to SFP part -- e. org/schemas/nvmem/fsl,t1023-sfp. anderson@xxxxxxxx>; Date: Thu, 28 Apr 2022 14:17:01 -0400; Cc: Li Yang <leoyang. Note:To support other PL physical interfaces such as TBI, the hardware design and device tree must be edited. 0 Intel Corporation 8th Gen Core Processor Host Bridge/DRAM Registers +-01. I am Also Facing the Same problem with SPI interface . Also, the GEM devices need phy-mode = "moca;" to get the fixed link for 1000BASE-X. Subject: [PATCH v3 7/9] ARM: dts: Add SFP binding for TA 3. 12. 315811] mvpp2 f2000000. Arch Linux: sudo pacman -S uboot-tools dtc. Each entry in the ranges table is a tuple containing the child address, the parent address, and the size of the region in the child address The value "ti,omap2-mcspi" for the key "compatible" is one of the available value in accordance with the device tree binding document for omap-spi. 2 and hdl master branch respectively. Re: [PATCH net-next] dt-bindings: net: convert sff,sfp to dtschema [Thread Prev][Thread Next][Thread Index] Subject: Re: [PATCH net-next] dt (X11; Linux x86_64; rv:91. ) Grab this piece of data from the device tree: xlnx,slv-awidth = <0x20>; Kernel code: void *ptr; int value; So the “rgmii” option is there for split into several sub-modes. Both Linux and u-boot follow the same Subject: [PATCH 2/8] dt-bindings: nvmem: sfp: Add clock properties; From: Sean Anderson <sean. ) Device Tree(dts): I leave the dts file untouched - Do I need to setup the pin 4 and 33 via pin control? Linux Device Tree: Re: [PATCH net-next] dt-bindings: net: convert sff,sfp to dtschema @nanz (AMD) First of all a big appologies for updating very late. Introduction Device tree basics Walking through a DTS le De ning a peripheral Summary The probe method (cont. yaml # $schema: http://devicetree. Contribute to torvalds/linux development by creating an account on GitHub. As indicated in the link the layer supports Petalinux-v2023. rgmii – The MAC is responsible for applying the delay(s) or the delay is included on the PCB directly. 1 devices; From: Sean Anderson <sean. My steps so far: 1. DTS的加载过程; 2. Just write a similar function as below and call it in AA with the path of the child node of BB. It’s likely that you’re reading this because you want to write a Linux driver for your own peripheral. Currently I am taking the route of creating a device tree overlay file (dtbo) that contains I'm working with the linux kernel device tree and at first sight there seems to be a missing functionality for nodes with multiple interrupt parents. Hello, I'm using TE0820 (Zynq UltraScale\+ XCZU4CG) that integrates the Gigabit Ethernet transceiver PHY Marvell 88E1512. Subject: Re: [PATCH net-next] dt-bindings: net: convert sff,sfp to dtschema; From: "Russell King (Oracle)" <linux@xxxxxxxxxxxxxxx>; Date: Wed, 30 Mar 2022 16:40:30 +0100; Cc: Ioana Ciornei <ioana. Linux Device Tree: [PATCH v4 10/11] arm: dts: marvell: clearfog-gtr-l8: add support for second sfp connector Linux Device Tree: [PATCH 1/2] arm64: dts: marvell: uDPU: rename the SFP GPIO properties 掌握设备树是 Linux 驱动开发人员必备的技能！ 设备树(Device Tree)，将这个词分开就是“设备”和“树”，描述设备树的文件叫做 DTS(DeviceTree Source)，这个 DTS 文件采用 树形结构 描述板级设备，也就是开发板上的设备信息，比如CPU 数 在linux kernel中，Device Tree的设计目标就是如此。 二. I can ifup the interface without error, but no flows. Sign in Product GitHub Copilot. Additionally, the device tree is updated to include PS-GEM0 with relevant parameters. 13100-1-ioana. Also attached is the linux device tree source file. sfp : Stage 1 Boot Loader(U-boot-spl) u-boot. e. I'm working with a custom IMX8 board with a phy that is not supported by the Linux kernel (it's a clause 45 automotive oabr transceiver). Homebrew: brew Linux Device Tree: [PATCH net-next v3 0/4] dt-bindings: net: convert sff,sfp to dtschema Ioana Ciornei (4): dt-bindings: net: convert sff,sfp to dtschema dt-bindings: net: sff,sfp: rename example dt nodes to be more generic arch: arm64: dts: lx2160a-clearfog-itx: rename the sfp GPIO properties arch: I have a very basic question about the Linux Device Tre I'm trying to build a device tree coming from an existing project, the device tree compiler just refuses like this: Error: how to access and debug a FDT/DTS device tree from a Linux driver (seg-fault) 1 Device Tree and code size. pointer to a device tree node. phylink has several modes of operation, which Dec 13, 2024 · Based on kernel version 6. The >> example there shows the Hi @saivikas (AMD) , . For example, From AA if you need to access BB/child_2 property then pass the absolute path to of_find_node_by_path() function. Hi @saivikas (AMD) , . My design contains a couple of IPs, the system reset and the MPSoC. 5) November 14, 2019 XAPP1305 (v1. ciornei@xxxxxxx>, davem@xxxxxxxxxxxxx, kuba@xxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, robh+dt@xxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx; In-reply-to: But the SFP module properties can be get only through driver of NIC, because these values are gotten through internal i2c bus on NIC. Let me explain my configuration more clearly: The GEM1(RGMII) MIO lines are first connected to the Ethernet PHY, which converts it to 1000Base-FX. org/schemas/net/sff,sfp. In the end the issue was the SFP module i Was using (it was 10/100/1000 Base-T Mini GBIC module which in the end i got the reply from manufacturer is not SGMII but SERDES Module). com Reference Clock Generation The GTH transceiver X0Y4 on the Zynq UltraScale+ MPSoC is connected to the SFP cage on the STM U-Boot Version Compatibility with Linux 5. The setup of fixed links should also be removed; these are handled internally by phylink. anderson@xxxxxxxx>; Date: Thu, 28 Apr 2022 14:17:00 -0400; Cc: Li Yang <leoyang. To acheive this i had to bind it in the device tree with the fixed-link property as below. anderson@xxxxxxxx>; Date: Thu, 21 Apr 2022 13:56:51 -0400; Cc: Shawn Guo <shawnguo@xxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Michael Walle <michael@xxxxxxxx>, Krzysztof Kozlowski <krzysztof. My aim is to boot from the SD card (currently controlled by I use a Dell G3 3579 to run the lspci -tvv command. I am using a buildroot linux kernel for an embedded board. cc> SFP is the security fuse processor which SGMII PS-GTR using SFP - Petalinux Device-tree I am attempting to get the PS-GTR working with an SFP using Petalinux. when I use petalinux to create boot. Linux device tree generator for the Xilinx SDK (Vivado > 2014. The device is connected to a link When I boot into the linux, I dont see the port names (fm1-mac9 and fm1-mac10). kozlowski+dt@xxxxxxxxxx>, devicetree@xxxxxxxxxxxxxxx, Michael Walle <michael@xxxxxxxx>, Shawn Guo Linux Device Tree: Re: [PATCH net-next] dt-bindings: net: convert sff,sfp to dtschema This property is required for setups where the role must be explicitly assigned via the device tree due to limitations in hardware strapping or incorrect strap configurations. Device tree address and reg and property. The input clock >> sometimes is defined in Exynos clock controller, sometimes outside. For linux relate bootup issue, can you please create a new thread and ask on Embededded Linux forum? The booting errors at least so far do not indicate the issue with XXV IP and its driver. Edit: this is a general question about referencing ports with phandles and the example I posted i. Thanks in advance for the support. Based on the value of the compatible property, this routine will attempt to choose an appropriate alias value for a particular device tree node. 1 Devicetree in embedded linux. 0 Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal In device tree file you can specify the clock frequency of a device. The recommended book for learning the basics is the famous Linux Device Drivers. yaml. dtb gives a well indented textual representation of the device tree a. Configurable delays are specified with the following extra device Hi, We have reference designs for both PS GEM and 1g/2. Based on kernel clock-names: const: sfp ta-prog-sfp-supply: description: The regulator for the TA_PROG_SFP pin. The IPs use the reset signal and the 100MHz reference clock. it can be > > fully featured IPv4 router with NAT or just plain bridge mode where > > "ethernet data packets" (those which are not part of ISP Hello, I got Petalinux (using 2023. 0 NVIDIA Corporation GP106M [GeForce GTX 1060 Mobile] +-02. This has the side effect of not letting ethtool read the SFP EEPROMs, but the kernel reads the EEPROMs anyway. Which support the PHYLINK API, DSA and port 5 of the switch also my AT803x driver with SFP support. This converts the SFP driver to use regmap. It is literally a one character change from the SGMII version that you helped me with several weeks ago. Information provided is insufficient to provide answer for code duplication. ub. * Device Tree Include file for NXP Layerscape-1046A family SoC. Subject: Re: [PATCH] arm64: dts: lx2160a-clearfog-itx: add SFP support [*experimental*]; From: Shawn Guo <shawnguo@xxxxxxxxxx>; Date: Mon, 15 Mar 2021 15:03:15 +0800; Cc: Li Yang <leoyang. Linux Device Tree: [PATCH net-next 5/7] net: sfp: provide a definition for the power level select bit Enable the Xilinx PHY driver and Disable the AXI DMA driver Device Drivers> Network device support > PHY Device support and infrastructure > <*> Drivers for xilinx PHYs Device Drivers> DMA Engine Support> Xilinx DMA Engines > <> Xilinx AXI DMA Engine Save the changes and exit. To find the documentation of a certain This converts the SFP driver to use regmap. org/meta Probe for the PHY and check the LOS state. 2. 7. Find and fix vulnerabilities Actions. The PL includes the programmable logic, configuration logic, and associated embedded functions. [1] (1,2) 4 days ago · phylink supports conventional phylib-based setups, fixed link setups and SFP (Small Formfactor Pluggable) modules at present. This is not an example how >> to use the clock provider, like you created here. ciornei@xxxxxxx>; In-reply-to: <20220704134213. Subject: [PATCH v2 net-next 4/4] arch: arm64: dts: marvell: rename the sfp GPIO properties; From: Ioana Ciornei <ioana. I have been trying to generate device-tree overlay for my Kria KR260 board. 4 has issues with NAND driver/chip. 2) build with BSP for KR260. 1) - Xilinx/device-tree-xlnx. 5g sgmii or 1000basex here targeting zcu102, please check if that helps and I hope it helps as a baseline at least: Linux Device Tree Source Include File : u-boot-splx4. device tree的基本单元是node。 这些node被组织成树状结构，除了root node，每 In this mode, the macb driver is used, and there isn't full support in there for SFP. 2 in STM32 MPUs Products 2025-01-14; Can't connect to STM32 in STM32 MPUs Boards and hardware tools 2025-01-14; Missing pinctrl in device tree for STM32CubeMX 6. I can't find a lot of information about how to create device trees to enable these peripherals. - cyyself/mt7981-usb-sfp-patcher. node should be the DT node which contains the network phy property, fixed link properties, and will also contain the sfp property. The phy is actually working, and its mdio bus and digital IO's are controlled with an userspace application. The exact way to do it depends on the GPIO controller providing the GPIOs, see the device tree bindings for your controller. txt (as seen in the second listed link). 1 Node Names): Each node in the device tree is named according to the following convention: node-name@unit-address. . ciornei@xxxxxxx>; In-reply-to: <20220704134604. I want to reference an existing port node from a device tree include (dtsi) and add an endpoint to it. I am developing a Linux device driver for data acquisition in an embedded Linux (PetaLinux). In the FSBL, I'm able to configure the registers via MDIO to select the "RGMII (System mode) to 1000BASE The node-name shall start with a lower or uppercase character and should describe the general class of device. Contribute to Xilinx/linux-xlnx development by creating an account on GitHub. Pointer to buffer that alias value will be copied into. Linux Device Take a look at Device Tree specification (section 2. No PS-PL AXI/DMA was used. The device tree part of the sfp-eeprom code: My guess is the SFP driver is responsible for that trigger that As stated in Device trees II: The harder parts LWN article: Naturally, in each case the device which provides the interrupt or GPIO will need to be initialized before it can be found and used. 0; On 30/03/2022 17:40, Russell King (Oracle) Linux Device Tree: [PATCH net-next] dt-bindings: net: convert sff,sfp to dtschema Subject: Re: [PATCH 2/8] dt-bindings: nvmem: sfp: Add clock properties; From: Rob Herring <robh@xxxxxxxxxx>; Date: Fri, 22 Apr 2022 08:36:20 -0500; Cc: Rob Herring <robh+dt@xxxxxxxxxx>, Krzysztof Kozlowski <krzysztof. 并且需要利用phydev的状态机的运转来adjust link。而后续引入的PHYLINK则是大大的优化了fixed link的实现以及对SFP的支持（这里暂不讨论）。 Software driver for Linux Linux Image SFP Device Tree 125 MHz X18651-051117 Send Feedback. Optional properties (for MAC): Hi @sonminhmin8 . hackster. The PHY can be configured via HW pins (see datasheet), or via SW. In an array, the & reference will expand to a phandle. But before jumping into writing a device driver of your own, allow me to share rule number one for writing drivers for Linux: Never write a device driver for Linux. I 've set clock SI5328 for routed SFP. The Linux kernel user’s and administrator’s guide; Kernel Build System; The Linux kernel firmware guide; Open Firmware and Device Tree. kandagatla@xxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Shawn Guo A Tutorial on the Device Tree is a reasonable instruction guide. GPIOs mappings are defined in the consumer device’s node, in a property named <function>-gpios, where <function> is the function the driver will request through gpiod_get() . Here, memory is directly mapped in the CPU address space and reg is <address size>. It doesn't have SFP support. That existing node is called mipi_in and is defined as a 注意(2017年9月20日追記)この記事は Linux Kernel 4. Maybe in your case this data can be found somewhere in Linux Device Tree: Re: convert sff,sfp to dtschema. This matches the design described in XAPP1082, however, I'm using a different board (AVNet Mini-ITX). But its good to understand the detailed structure of ranges property in device tree. 1 BSP patch files . Make sure you are using correct SFP cage adapter and RJ45 cables- for 1G 1000BASE-X validation, Cisco GLC-T 1000BASE-X Ethernet to SFP Module is used(SN : AGM170623ZT). Hi @abc123wyj1230,. Kind advise is requested Linux Device Tree: Re: [PATCH 2/2] ARM: dts: armada388-clearfog: add SFP module support Russell King wrote: > > Add SFP module support for Clearfog using the SFP phylink support. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 I'm working with a Zynq UltraScale+ trying to test peripherals in u-boot before loading Linux. 0) Gecko/20100101 Thunderbird/91. Write better code with AI Security. dtsi file and look up the labels for the DIP switches and Push button GPIOs: So the question is: how to create a proper device tree for a dsa switch connected to a processor like this? Thank you for any help! (There is a somewhat similar question P1010 MAC to Switch port direct connection without PHY but I cannot comment on it For the most part, flags can be zero; these flags are passed to the phy_attach_direct() inside this function call if a PHY is specified in the DT node node. 3LK-NAPI firmware-version: rtl8168e-3_0. I think there is a misunderstanding about the connection of GEM1. The HDL and device tree used are "adrv9001_zcu102" and "zynqmp-zcu102-rev10-adrv9002" respectively. So details of this process is implemented in the driver. For example consider a device tree where serial port (UART) clock-frequency is set as "clock-frequency = <3686400>;". 2. - Michael Walle <michael@walle. Note: v5. So now based on SoC and the peripheral used, the device tree property can be written consulting the device tree binding document. 0. We disallow byte-level access, as regmap_bulk_read doesn't support it (and it's unclear what the correct result would be when we have an endianness difference). 4 時点に投稿したものであり、古い内容が含まれています。Linux Kernel 4. 10 以降、FPGA 関連は大きく進 Pre-built Linux device tree binary : socfpga_cyclone5_socdk. (I had to rename the DTS as the system did not want to allow me to attach it with a DTS extension) For Ethernet, the device tree is very simple as it is a fixed link with no MDIO. x中的platform 总线机制的优化版本。 OK,我们来说说基于device tree机制的驱动开发中注册设备的过程，这里以我写的矩阵键盘驱动代码的设备注册过程为例： 1. You are right in assuming that the board files and device-trees are required for initialisation of on-chip blocks and off-chip peripherals. dts a. 0-only OR BSD-2-Clause) %YAML 1. 0-[01]----00. XAPP1305 (v1. For 1G SGMII validation, Cisco GLC-T 1000BASE-T 100m RJ45 Ethernet to SFP Module is used(SN : CLS10310606) to be used. Description. com> Linux Software Drivers; SigmaDSP Processors & SigmaStudio Dev. A2B; Amplifiers; Microcontrollers; Clock and Timing; Data Converters; ERROR: device-tree-xilinx-v2021. This will allow easily supporting devices with different endians. If OEM vendor of GPON SFP stick did not locked it, you can connect to this "computer" via telnet or web browser and configure some settings, including GPON stuff and also how GPON network is connected to SFP part -- e. Subject: [PATCH v3 0/9] nvmem: sfp: binding updates and additions; From: Sean Anderson <sean. So the linux kernel read the SFP module and sets-up the mac-phy chain in the right mode. The ADIN PHY driver instantiates via Linux's phylib framework, which is typically enabled on most systems. For background, you should read about Linux and the Device Tree. Solved! Go to Solution. Then I created the XSA as explained here https://www. As you know there is argument of linux kernel in device tree blob file. Download. ranges is a list of address translations. I tried generating the device tree from the . Thanks a lot for the answer. xsa with Vitis, but it looks nothing like Xilinx's reference dts: I am using an embedded Arm with a Debian build. tar. Refer to Device Trees for more information. Users with an SFP module in their cage may activate support by executing "omnia_select_device_tree sfp" once after each sysupgrade. At least here in Germany where I’m located, GPON fibre infrastructure is being massively built out, but there are no MAC-less GPON SFP sticks available (there’s one for AVM Fritz!Boxes named “Fritz!SFP GPON”, spidev: why it shouldn't be directly in devicetree? The Device Tree should describe the board's hardware, but spidev does not describe/identify any hardware. li@xxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, Jon Nettleton 接触了device tree机制的驱动开发后，其实device tree机制就是Linux-2. Also, elinux. anderson@xxxxxxxx>; Date: Thu, 28 Apr 2022 14:16:54 -0400; Cc: Li Yang <leoyang. 6 中， ARM 架构的板级硬件细节过多的被硬编码在 arch/arm/plat-xxx 和 arch/arm/mach-xxx (比如板上的 platform 设备 Looking forward to the Turris Enterprise! 🥳 An idea for an “add-on” to this would be a MAC-less GPON SFP stick, if that’s technically viable for the device. I have a driver that is controlling a custom ARM embedded board, it takes GPIOs and pin interrupts from multiple GPIO interrupt parents and manages the on board battery, voltage low irqs, reset_pending irq, etc. Documentation / devicetree / bindings / nvmem / fsl,layerscape-sfp. It consists of one or more Introduction. Here is the output:-[0000:00]-+-00. This address is supposed to be documented in the SoC Subject: [PATCH v2 net-next 4/4] arch: arm64: dts: marvell: rename the sfp GPIO properties; From: Ioana Ciornei <ioana. const struct device_node *node. 0 + STM32MP157D (custom board) in STM32 MPUs Products 2025-01-14 We are successfully using Ethernet over a RJ45 SFP (Copper, Marvell PHY) on a Zynq MPSoC Board, with fixed 1 Gbps: Zynq MPSoC --> PS-GTR --> SGMII --> Marvell PHY on SFP RJ45 Module fixed-link 1000 Mbps, in Uboot device tree No MDIO, PHY Register accessible through I2C The PHY registers in the SFP are configured in uboot through I2C for fix 1Gbps Now, we Subject: [PATCH v3 6/9] ARM: dts: layerscape: Add SFP binding for TA 2. MAC mode), connect the GMII and MDIO internally to the GEM, use the external PHYs clock as refclk125, and set the PHY address to what it is in the device tree. (a bit off-topic) Concerning switch support, I agree it would be great to have the 2nd CPU port usable. The bitstream and xsa files were exported from Vivado. Or dump it to stdout with: dtc -I dtb -O But i am not able to find where to add this information in the linux kernel . Build instructions are followed as per the above link indicated ( Go to Yocto Settings->User layers and add the meta-adi-xilinx layer. Therefore the settings of the PCS/PMA block were no management interface, auto negotiation on, SGMII PHY off (i. xilinx. Mark Brown wrote: Since spidev is a detail of how Linux controls a device rather than a description of the hardware in the system we should never have a node described as "spidev" in DT, any SPI device could I managed to get this to work myself - the key was to ignore the external PHY's MDIO interface. The MAC interface is RGMII. 1 petalinux released BSP. 3_`是一个针对Xilinx FPGA平台的设备树源码库，对于嵌入式Linux系统开发者，深入理解和使用这个源码对于构建和调试基于Xilinx硬件的系统至关重要。 Patch existing OpenWRT firmware (sysupgrade. 在probe函数中调用of_get_**或者of_find_**函数从dtb中获取设备资源： GPIOs can easily be mapped to devices and functions in the device tree. It wasn't very many kernel versions ago that this was a real problem. FIXED-PHY的本质和externel phy没有区别，只是使用虚拟的mii_bus来注册fixed phy，仍然需要创建phydev, 仍然需要phy driver，如果没有注册specific driver则是默认使用generic phy driver. io Anyway, a few minutes ago I pushed something more user friendly (and safer, I hope). 13626-1-ioana. 在 Linux 2. > > > > Signed-off-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx> > > Tested-by: Andrew Lunn <andrew@xxxxxxx> > > Using a RoboFiber SFP module, connected to a 总之，`device-tree-xlnx-master_tree_devicetree2018. DMA events. 5g sgmii or 1000basex here targeting zcu102, please check if that helps and I hope it helps as a baseline at least: Small Form Factor (SFF) Committee Small Form-factor Pluggable (SFP) Transceiver Required properties: - compatible : must be one of "sff,sfp" for SFP modules "sff,sff" for soldered down SFF modules - i2c-bus : phandle of an I2C bus controller for the SFP two wire serial interface Optional Properties: - mod-def0-gpios : GPIO phandle and a specifier of the MOD-DEF0 (AKA In our design, the media dependent side of the KSZ8041FTL PHY (mounted in our host board) was intented to be 100Base-FX through the pins TX+/- and RX+/-. Depending on the NAND flash chip, you may get ECC errors and can't flash it. they send info as part of probing process. Tags (2) Tags: ls1046ardb. Miller" <davem@xxxxxxxxxxxxx>, Eric Dumazet <edumazet@xxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>, Paolo Abeni We got a Kria SOM board from digikey and are trying to do a board bring up with a custom carrier board (build based on Xilinx recommendation). bin and image. org [1]. Best Regards Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I have a board with mt7621 cpu, which has GE2_TX / GE2_RX connected to RTL8211 chip: MDC MDIO GE2_TXD0 GE2_TXD1 GE2_TXD2 GE2_TXD3 GE2_TXEN GE2_TXCLK GE2_RXD0 GE2_RXD1 GE2_RXD2 A platform_device is a concept used by Linux for memory or I/O mapped devices which cannot be detected by hardware, and for ‘composite’ or ‘virtual’ devices (more on those later). I am using the Kria KV260 Board and Designed the EMIO pins to PMOD connector . it is stuck Parameters. sfp : Prebuilt SPL image file : u-boot. 15-stm32mp-r2. Outside an arry, the & reference will expand to the path of the node you're referring to. * sfp: efuse@1e80000 {compatible = "fsl,ls1021a-sfp"; Linux Device Tree: Re: [PATCH net-next] dt-bindings: net: convert sff,sfp to dtschema SFP support predated (in my tree) the deprecation of the -gpio suffix, and despite the SFP binding doc being sent for review, it didn't get reviewed so the issue was never picked up. Linux and the Device Tree; Writing DeviceTree Bindings in json-schema; DT Changesets; Device Tree Dynamic Resolver Notes; Open Firmware Device Tree Unittest; Device Tree Overlay Notes; Device Tree For the most part, flags can be zero; these flags are passed to the phy_attach_direct() inside this function call if a PHY is specified in the DT node node. 4 kernel. Depending on the MAC driver that is used and the operating mode (MII, RGMII, RMII), a device-tree entry for the PHY may or may-not be needed. 13. ethtool provides detailed information about the interface: $ ethtool -i enp2s0 driver: r8169 version: 2. dts : Linux device tree source : socfpga_cyclone5_ghrd. This is an example how to model the input clock to >> the device being described in the bindings. ciornei@xxxxxxx>; Date: Mon, 4 Jul 2022 16:42:13 +0300; Cc: robh+dt@xxxxxxxxxx, linux@xxxxxxxxxxxxxxx, devicetree@xxxxxxxxxxxxxxx, Ioana Ciornei <ioana. kozlowski+dt@xxxxxxxxxx>, Li Yang On 30/03/2022 17:54, Russell King (Oracle) wrote: >> >> These are different. Automate any workflow Codespaces Device tree bindings are redundant or not necessary for USB and PCI devices as they are probed. My device tree entry is currently: &i2c1 { clock-frequency = <100000>; pinctrl Hi all, I 'm running CPRI on zcu102 over SFP/SFP\+ cage and DMA ethernet. Skip to content. 5) November 14, 2019 6 www. linux,code = <28>; /* ENTER */ gpios = <&gpio7 2 0>; };}; But I cannot do it in a device tree because gpio-expander gpiochip7 is created just when pca9554 driver is loaded. Subject: Re: [PATCH net-next] dt-bindings: net: sff,sfp: Fix "interrupts" property typo; From: Conor Dooley <conor@xxxxxxxxxx>; Date: Thu, 14 Nov 2024 19:57:39 +0000; Cc: Russell King <linux@xxxxxxxxxxxxxxx>, "David S. 6. Maybe someone can explain it to me by a simple example. DTS的描述信息; Device Tree由一系列被命名的结点（node）和属性（property）组成，而结点本身可包含子结点。所谓属性，其 Hi . However, I have been unable to come up with an acceptable Jun 24, 2024 · 不过对于SOC上的usb host controller，它是无法动态识别的，需要在device tree中描述。 1. Eli Billauer The Device Tree: Plug and play for Embedded Linux. I want to make the GPIO which it uses configurable from the device tree. Zynq UltraScale+ devices integrate a flagship ARM® Cort ex®-A53 64-bit quad-core or dual-core processor, Cortex-R5 dual-core real-time processor in PS, and PL in a single device. How can I set this device as a correct gpio controller and configure it for gpio-buttons? Thanks for any useful information! Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I am struggling to find out, what steps are necessary to access a gpio-pin from a linux kernel module. I have created the block design as in XAPP1082, copied the relevant sections of the device tree and verified that all clocks have the right frequencies and that tx_disable is pulled low. Defining peripherals. &fman0 I've written an I2C driver. The PS comprises the ARM Cortex-A53 MPCore CPUs unit, Cortex-R5 processors, on-chip Also m24C80@50 is a device attached to axi iic bus having address 50(hex) for which driver at,24c08 is loaded and configured You can find what has been generated for your hardware design in < petalinux project Now I want to implement sfp ethernet on my own board, my board have only one ethernet that connect to GTX with SFP, I modify the reference design "runs_ps_emio" to adapt my board, in the vivado project I also use eth1 connect to gig_ethernet_pcs_pma ip core, disable eth0. 4. 2---$id: http://devicetree. Length of alias value. dtsi : Linux device tree source include The official Linux kernel from Xilinx. Dengqf6 is pushing openwrt to v5. DTS基本知识; 1. img Hy Ladies and Gentlemen :) I worked on a Mochabin board from GlobalScale. An overview of the device tree data format can be found on the device tree usage page at devicetree. But I don't know, is this SFP driver universal for standardized modules in Linux? Do I need to write my own driver, and how should I write the device tree? My SFP model is UE76-A20 A platform_device is a concept used by Linux for memory or I/O mapped devices which cannot be detected by hardware, and for ‘composite’ or ‘virtual’ devices (more on those later). Patch. It consists of one or more ASCII characters from the set of characters in Table 2-1. g. 0 devices; From: Sean Anderson <sean. int len. 0 Intel Corporation Device 3e9b +-04. So the SFP device-tree nodes *must* be removed from the GEM devices. So, I suggest you to use it after booted. Navigation Menu Toggle navigation. While there is no ‘platform device’ terminology for the DT, platform devices roughly correspond to device nodes at the root of the tree and children of Hi, We have reference designs for both PS GEM and 1g/2. itb) to use the USB3 on the MT7981 to connect to 2500Base-X SFP module. May 20, 2017 · Example #1: Direct serdes to SFP connection sfp_eth3: sfp-eth3 { compatible = "sff,sfp"; i2c-bus = <&sfp_1g_i2c>; los-gpios = <&cpm_gpio2 22 GPIO_ACTIVE_HIGH>; mod Jun 16, 2018 · Example #1: Direct serdes to SFP connection sfp_eth3: sfp-eth3 { compatible = "sff,sfp"; i2c-bus = Dec 13, 2024 · # SPDX-License-Identifier: (GPL-2. */ ret = sfp_sm_probe_for_phy (sfp); if (ret == -ENODEV) { if (--sfp->sm_phy_retries) { sfp_sm_next (sfp, SFP_S_INIT_PHY, sfp 4 days ago · This article describes how Linux uses the device tree. For more details on patch information please refer to AR# 75664: ZCU111 2021. 0 supports-statistics: yes supports-test: no Yes, you can do it. It cannot communicate with another devices. img : Prebuilt U-Boot image file : rootfs/console-image-minimal-arria10. The device is connected to a link SGMII PS-GTR using SFP - Petalinux Device-tree I am attempting to get the PS-GTR working with an SFP using Petalinux. It will be enabled for programming and disabled for reading. Any help regarding this issue will be greatly Linux Device Tree: How to make the device file? 1. While there is no ‘platform device’ terminology for the DT, platform devices roughly correspond to device nodes at the root of the tree and children of simple memory mapped bus nodes. # ifup sfp1 [ 106. Support for SFP transceivers has been recently introduced If drivers are required for the modules (because they have a PHY on them) the normal Linux PHY drivers get used for that. なお、現時点での Linux の Device Tree Overlay のサポートは暫定的かつ限定的なもので、将来どうなるかは未だ不明な部分があることをご了承ください。 Linux Device Tree Source; u-boot/ u-boot-spl. clltzwjcvppzadknunyxlpztmazufpoglswzudktwdttistqjunwputzrtzhib