Ethtool read mdio register /mdio-tool r eth0 0x0 where eth0 is the MII read: This is the only command which can and must be used in U-boot. PHY Management I want to read/modify the Phy registers at Linux, please note that iam able to read/modify the phy at u-boot using : mii read and mii write commands, but iam unable to read/modify when the linux boots. Your device-tree is the same as ours (what a suprise :) ). The PHY address corresponding to each TBI can be programmed in the TBIPA_VAL register of the corresponding eTSEC. 3246. Sign in Product GitHub Copilot. You can dump registers using ethtool, but for read/write accesses to individual registers you can refer to mdio-tool. phy_write: Function invoked by the DSA user MDIO bus when attempting to write to the switch Mt7621 / mt7530 programming: Disabling Flow Control on all ports Loading The MDIO bus¶ Most network devices are connected to a PHY by means of a management bus. * * Copyright (C) 1998 David S. 201 o phy_mask: phy mask passed when register the MDIO bus within the driver. links: PTS, VCS area: main; in suites: wheezy-backports; size: 744,064 kB; sloc: ansic: 12,230,091; asm: 277,426; xml: 47,771 Sign in. I found a nice example of how to do it using ioctl or ethtool - see attached. About; Products OverflowAI; Stack Overflow for Teams Where developers & technologists share private knowledge with 1. This rips out the at91_ether phy handling and ethtool stuff and replace it with equivalent stuff from macb. 473566] davinci_mdio 4a101000. There is also a section on how to read extended register over xsct. If used twice, also display raw MII register contents. stat2 = mdio->mdio_read(mdio->dev, prtad, mmd, MDIO_STAT2); set or clear flag in an MDIO register * @mdio: MDIO interface * @prtad: PHY address * @devad: MMD address * @addr: Register address * @mask: Mask for flag (single bit set) * @sense: New value of flag * * This debounces changes: it does not write the register if the flag * already has the proper value. For example code in EZSDK linux: /arch/arm/mach-omap2/devices. I'm not using a common MDIO bus for two PHYs. QorIQ Processing PlatformsQorIQ Processing Platforms. pci_write_config_byte(tp->pci_dev, PCI_LATENCY_TIMER, 0x40);// It must be for phy config register write/ But what is phy_write_paged/ are there any memory pages? in physical layer handling by Operating The read and write commands are simple register level accessors. 2f81db5 100644--- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -2443,6 +2443,9 From: Ben Hutchings <bhutchings@solarflare. /phytool read enp2s0/5/0xe’ You signed in with another tab or window. md for details - analogdevicesinc/linux linux 3. Tweet a thanks. 4 AXI ref design for the ML605 - seems to be working quite nicely, save one issue. xilinx. This was my attempt as using the neli library: ethtool. mdio: phy[ 0 ]: device 4a101000. Contribute to lldpd/lldpd development by creating an account on GitHub. This causes the Mt7621 and reading sfp eeprom - For Developers - OpenWrt Forum Loading Contribute to PieVo/mdio-tool development by creating an account on GitHub. If unavailable, return 0xffff for each read. From what I can tell right away: We present here a short selection of often used ethtool commands together with some useful commands that are not well known. using: ethtool-d ethX. ETHTOOL_GLINK failed: Operation not supported . Also, some PHYs may need initialization or user/application may need to read/write PHY registers. Did you find this article helpful? We are glad you liked the article. It lets us fetch network interface details like speed, duplex mode, and driver information. i. Skip to content. through an MDIO (Management Data I/O) interface, just like any MII compatible PHY. Die Einstellmöglichkeiten sind sehr umfangreich, aber auch abhängig von der verwendeten Netzwerk-Hardware und dem verwendeten Treibermodul. General Purpose MicrocontrollersGeneral Purpose Microcontrollers. * The official Linux kernel from Xilinx. The length and offset parameters Hi. is there a way to read the mdio registers from these phys in Linux user space? Do I need a driver here or I need to have the configuration done correctly in the device tree? Any help would be appreciated. If you use the CPU's GPIO to restart On 8/20/2012 4:55 PM, Bruce Allan wrote: > The helper functions which translate IEEE MDIO Manageable Device (MMD) > Energy-Efficient Ethernet (EEE) registers 3. kernel. As a result, things like read/mask/write operations and accesses to paged PHYs can be performed # ethtool -s eth0 speed 100 duplex full # ethtool -s eth0 speed 10 duplex half. Automate any workflow Codespaces. However, neither of them provide an out-of-box solution. Installation¶ Zur Ethtool is a user space utility for displaying and configuring the Network Interface Unit. we verified all the mdio related pinmuxes in both kernel and uboot and its same but only difference is in useraccess(0x48485080) register where after we set go bit in kernel its reading 0x0000ffff and alive register in kernel reads 0 whereas it read 0x3 in uboot. Cancel; 0 Dave Bell over 4 years ago. The first part of this series introduce counterparts to <linux/mii. I would suggest to talk to the phy via ioctl if the kernel driver supports it (it seems to do so via of_mdio, but I have not tried). I do not see a MDIO to control the registers of the PHY (Basic Mode Status Register, Basic Mode Control Register, ) in the SGMII specification. 6 mdio rx cpsw 2. It is also possible that the MDIO On 8/20/2012 4:55 PM, Bruce Allan wrote: > The helper functions which translate IEEE MDIO Manageable Device (MMD) > Energy-Efficient Ethernet (EEE) registers 3. . MX Forumsi. com> * e100 support by Wen Tao <wen-hwa. In most MDIO-connected switches, these functions would utilize direct or indirect PHY addressing mode to return standard MII registers from the switch builtin PHYs, allowing the I am reading RTL_ReakTek driver code for NIC driver r8169 and it does some phy registers writing/phy config register writing/ with functions like these. h>. I have a need to access Ethernet PHY MDIO registers from user space. we had the same problem and were not able to get the switch running in U-Boot but in Linux (we even got the same messages with eth0). /* SPDX-License-Identifier: GPL-2. Description It is possible that the MDIO interface of all instances of CPSW and PRUSS peripherals (if present) returns corrupt read data on MDIO reads (e. Can you help to understand how the values 21(phy@21) and 7 (ethernet-phy@7) are identified in the above link? As per my understanding PHY chip will be connected to GEM controller using MII and MDIO lines. The driver interfaces to the Gigabit Ethernet block of BlueField SoC via MMIO accesses to registers, which contain It is possible that the MDIO interface of all instances of CPSW and PRUSS peripherals (if present) returns corrupt read data on MDIO reads (e. * * When autoneg is In other devices I use the SIOCGMIIREG and SIOCSMIIREG to write to the mdio registers direct. Please make sure you apply the MACB patch from this post's solution. 39-1%2Bdeb8u1~bpo70%2B1. We have a similar design where a common MDIO-0 bus of gem0 is shared with rest of the gems(gem1, gem2, gem3). com Using PL Ethernet This section describes a PL implementation of Ethernet. * * FEC modes supported by the device can be read via %ETHTOOL_GLINKSETTINGS. Miller (davem@redhat. Linux MDIO register access. 20, 7. Cancel; Up 0 True Down; Cancel; 0 chris healy over 12 years ago in reply to Arjun Prasad. c I have a need to access Ethernet PHY MDIO registers from user space. The command line tool cmd9500 can be used to read/write PHY registers. - Errata: i2329 MDIO interface corruption (CPSW and PRUSS) 3. I am getting values 0x0 on both which doesn't match the expected PINMUX configuration for enabling MDIO clock and data on those pins. phy_read: Function invoked by the DSA user MDIO bus when attempting to read the switch port MDIO registers. Both PHYs are on a separate GEM, with different MDIO busses (MDIO 2 and MDIO 3). 61 to and from > the comparable ethtool supported/advertised settings will be needed by > drivers other than those in PHYLIB (e. 1528 * FEC settings are configured by link autonegotiation whenever it's enabled. Using the ethtool command line tool returns the expected values, and my NIC driver supports After booting on Linux I have read the pin mux configuration registers for these two pins (MIO_PIN_77 & MIO_PIN_76) . In the original specification, a single MDIO interface is able to access up to 32 registers in 32 different PHY devices. Please note that in this case there could be some kind of interference with the kernel functions accessing the MDIO bus in some cases (probably not with the ethernetlite driver, but with others - lltemac and axi_ethernet) Anyway I am attaching a data & MDC/MDIO for register access z Most Existing 10/100 MACs can’t do Clause 45! They can only do Clause 22! z “Houston, we have a problem!” 5 The Solution z We need to define a standard way to access Clause 45 registers using Clause 22 z Using a standard ‘backwards compatible’ way to access Clause 45 registers WILL solve 802. 38. If this is I was reading the SGMII specification and the documentation of a Gigabit MII to SGMII converter (see MAX24287). Their prototypes are: When raw is enabled, then ethtool dumps the raw register data to stdout. Prodigy 50 points Arjun, I'm assuming you already have the PHY connected to the MAC in your SOC via MII, GMII, or RGMII including the MDIO pins. This is register 0x4a101008 according to the TRM, I think, since the offset is 8h. junhyoungidl0 . In most MDIO-connected switches, these functions would utilize direct or indirect PHY addressing mode to return standard MII registers from the switch builtin PHYs, allowing the Complex operations can be performed atomically. The read and write commands are simple register level accessors. General Purpose MicrocontrollersGeneral 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 The manufacturer (RTK) of the device PHY has provided a register of our PHY to clarify the problem. /phytool write enp2s0/5/0xd 0x401e’ ‘sudo . mii-tool indicates that there are no mii transceiver present at 11. I want to read/modify the Phy registers at Linux, please note that iam able to read/modify the phy at u-boot using : mii read and mii write commands, but iam unable to read/modify when the linux boots. Sorry about that. The print command will pretty-print a register. Write better code with AI Security. This makes it easier to debug devices. For reference, you can see this page for GEM Reading PHY registers over MDIO via the PHY Management GEM Register - Xilinx Wiki - Confluence (atlassian. In order to take advantage of the PAL, each bus interface needs to be registered as a distinct device. These registers provide status and control information such as: link status, speed How can i call the read and write register fuctions from user space. Look at the sources of those programs how to get access to phy api. Identification and Contribute to PieVo/mdio-tool development by creating an account on GitHub. "Write register" is not always exactly that. using: ethtool-S ethX (that shows the Management counters (MMC) if supported) or sees the MAC/DMA registers: e. If left out, the most common registers Hi, I am using a DP83848 TI chipset for ethernet and not able to detect the chip, Can any one help me how to read the registers using MDIO line in. ETHTOOL_GLINK failed: Operation not supported. leech@intel. to me this seems like an evolution of the Lantiq XWAY PHYs for which we already have a driver: intel-xway. For ease of use, users should use utilities such as mii dump in u-boot or similar in Linux too. d. It is also possible that the MDIO interface becomes unavailable until the next peripheral reset (either by LPSC reset or global device reset with Spotify's Linux kernel for Debian-based systems. In other words, I should have a C code, which config stat2 = mdio->mdio_read(mdio->dev, prtad, mmd, MDIO_STAT2); set or clear flag in an MDIO register * @mdio: MDIO interface * @prtad: PHY address * @devad: MMD address * @addr: Register address * @mask: Mask for flag (single bit set) * @sense: New value of flag * * This debounces changes: it does not write the register if the flag * already has the proper value. Stop the autoboot process as shown here, and type the following: “mii read {PHY ID} {register address}” “mii write {PHY ID} {register address} Phytool – Provides hexadecimal register dumps and can also write register values. org, linux-net-drivers@solarflare. This shows that the MAC is set-up for a 10Mbps link speed and half-duplex mode. It should call generic_mii_ioctl(). Contribute to PieVo/mdio-tool development by creating an account on GitHub. Hi Sooraj, In petalinux, you can use devmem utility to access registers. Is register 00H the first two bytes "01 02"? And what is the byte order? And more important is this the right way to read the registers? Utility for controlling network drivers and hardware - ethtool/ethtool-copy. Different devices use different busses (though some share common interfaces). 4 0x0071 mdio wx cpsw 2. So enable EEE on the switch MACs but disable EEE advertisement on the switch PHYs. It's not guaranteed any valid answer from PHY while PHY communication can even hang. The logic in "mlxbf_gige_main. Navigation Menu Toggle navigation. So I tried to use ethtool: root@myimg-64b:/proc/net# ethtool -p eth5 2 I'm trying to implement phy statistics reading by ethtool from a custom switch driver. When using the print command, the register is optional. read and write functions must be implemented. 5MHz to anything else. Alert: If used three times, will force reading all MII registers, including non standard ones. Suggest please any way to do this implementation of IEEE 802. When raw is enabled, then it dumps the raw EEPROM data to stdout. If your ioctl calls don't get as far as mdio_read/write, check your ioctl function in your driver. The kernel will try to be extra helpful and do things behind the scenes I'm trying to fetch the stats of a NIC device in Rust, which is basically the equivalent of running ethtool -S eth0. This article is an attempt to summarise the most useful ethtool commands with examples Ethool provides You signed in with another tab or window. md for details - analogdevicesinc/linux The management of these PHYs is based on the access and modification of their various registers. 5 0x7777 mdio wx cpsw 2. It is also possible that the MDIO interface becomes unavailable until the next peripheral reset (either by LPSC reset or global device reset with - phy_read: Function invoked by the DSA slave MDIO bus when attempting to read the switch port MDIO registers. static int mdio_read(struct net_device *dev, int phy_id, int location) static void mdio_write(struct net_device *dev, int phy_id, int location, int value) in your driver. I get a dump of hex bytes. com . * * For %ETHTOOL_GRXRINGS, @data is set to the number of RX rings/queues * on return. However, the flow below shows how this can be done simply via devmem incase such utilities are unavailable. Product Forums 23. Is that an issue? The MDIO bus¶ Most network devices are connected to a PHY by means of a management bus. 1529 * With autoneg on %ETHTOOL_GFECPARAM can be used to read the current mode. In standalone, you can use mrd. / drivers / net / mdio. How do I then interpret the dump. Using PL Ethernet XAPP1082 (v5. Memory mapped at address 0xffff8a41e000. This address is to be Hello, > Add driver to support the Maxlinear GPY115, GPY211, GPY212, GPY215, > GPY241, GPY245 PHYs. Thanks, Pouyan. You signed out in another tab or window. rs. Contribute to spotify/linux development by creating an account on GitHub. * ETHTOOL_PHYS_ID support by Chris Leech <christopher. Ethtool doesn't see the phy_driver structure I declared in my driver, because it simply has an empty dev->phydev pointer in function __ethtool_get_sset_count. &gem2 { phy-mode = "moca"; fixed-link { speed = <100>;; full-duplex; }; };</code><p>Even when I add the above to the device tree, in linux, it shows up properly when * For %ETHTOOL_GRXFH and %ETHTOOL_SRXFH, @data is a bitmask indicating * the fields included in the flow hash, e. The minimum clock frequency is 2. It looks like it's not seeing a response, even though I see one on the scope. Hi. Arjun. Please guide me in this. We are not facing any issue like yours, during kernel bootup all the 4 ethernets are getting listed up properly. die. I have checked the hardware circuit and software configuration according to the RX72M+YT8512H given by the agent, but there is still no effect. This is especially useful when there is a PCS involved (and the ethtool reads are faked), when there is no MAC associated with a PHY, or when the MDIO device is not a When raw is enabled, then ethtool dumps the raw register data to stdout. Their prototypes are: I have a need to access Ethernet PHY MDIO registers from user space. Compiling the Kernel with CONFIG_DEBUG_FS the driver will export the following debugfs entries: 189 190 For MDIO bus The we have: 191 192 struct stmmac_mdio_bus_data { 193 int (*phy_reset)(void *priv); 194 unsigned int phy_mask; 195 int *irqs; 196 int probed_phy_irq; 197}; 198 199 Where: 200 o phy_reset: hook to reset the phy device attached to the bus. 8 0x0379. Stack Overflow. Notes. com> * e1000 support by Scott Feldman <scott. com/PieVo/mdio-tool for reference. -e --eeprom-dump Retrieves and prints an EEPROM dump for the specified network device. How can I access to MDIO interface in Linux? I want to change VLAN settings on this switch. Contribute to Digilent/linux-digilent development by creating an account on GitHub. h> and the mii module for use with MDIO clause 45 devices and controllers that support both clause 22 and clause 45, and change several 10G Ethernet drivers to use them. In case it helps, the MDIO CONTROL register at 0x4a101004 has a value of 0x410000FF, which seems to indicate that the MDIO is enabled and the highest user channel is 1, and the I have a need to access Ethernet PHY MDIO registers from user space. My testing on MT7531 shows a certain amount of traffic loss when EEE is enabled. Now the DP83620 registers are 16 bits. u32 phy_addr=0xFFFFFFFFUL; //Specify In the 40-100GbE IP core example design, client logic drives the MDIO module when an MDIO serial interface controls the external PMD or CFP device. We then proceeded to read back the GEM1 network configuration register using devmem 0xE000C004, the value read back is 0x010EA140. Try putting a printk here to see the phy_id. Add comments for ethtool_cmd::phy_address and ethtool_cmd::mdio_support, and definitions of the flags currently used in mdio_support. Intel took over Lantiq some years ago and last year MaxLinear then took over what was formerly Lantiq from Intel. Thanks for your quick response. Forums 5. 3’s register access problems The procedure to read Clause 45 registers, for write verifications or general reads, is the same as writes except the fourth step is a read instead of a write. Nicht alle hier gezeigten Konfigurationsmöglichkeiten können mit jedem Gerät umgesetzt werden. I would like to ask if In this simple demo, we will see how to manually read the PHY registers over MDIO. With driver e1000e will fail while reading register 0x07. Their prototypes are: I was going through the U-boot Ethernet Driver confluence page to understand more for reading Marvell PHY registers using U-boot commands. So far our code can call the ixgbe_mdio_read() function but we always get the reg-value 0xFF. If left out, the most common registers will be shown. Please note that in this case there could be some kind of interference with the kernel functions accessing the MDIO bus in some cases (probably not with the ethernetlite driver, but with others - lltemac and axi_ethernet) Anyway I am attaching a U-Boot# mdio list cpsw: 0 - Micrel ksz9031 <--> cpsw Read the SKEW registers first: mdio rx cpsw 2. 9. I have booted the linux on the T1024. To configure the processor to operate in SGMII mode, the TBI must be programmed to connect to the internal SerDes rather than to the external pins. 5 MHz. 10 / . This way, we don't change I want to read out the PHY registers for inspection, and found ethtool --register-dump eth0. There is a single transmit queue, and the port supports transmit ring I'm trying to figure out how I can read, write, and update memory addresses for eeprom on a pci network card using c language on ubuntu. The closest existing in-kernel interfaces are the SIOCG/SMIIREG ioctls, but they have several drawbacks: 1. c. Contribute to Xilinx/linux-xlnx development by creating an account on GitHub. e1000e in a follow-on patch). For builtin switch Ethernet PHYs, this function should allow reading the link status, auto-negotiation results, link partner pages etc. -e --eeprom-dump Retrieves and prints an EEPROM dump for the specified network device. mdio-tool [r/w] [devname] [addr] . But the SIOCGMIIREG and SIOCSMIIREG is not supported any more: root@myimg-64b:/proc/net# mii-tool eth5. Could not determine status. Anyway it is also possible to talk via MDIO bus directly through the IP registers (as stated on the Datasheet (DS580) at page 16. net). nunley@intel. 2. mdio sends byte code to the mdio-netlink kernel module that can perform multiple operations, store intermediate values, phy_read: Function invoked by the DSA user MDIO bus when attempting to read the switch port MDIO registers. tao@intel. Not all MDIO drivers support the port:device Clause 45 address format. 4. Linux “man” pages for these tools are are available at: ethtool: https://linux. When I run the example - I get the message . %RXH_IP_SRC. The following * structure fields must not be used. > > In the same fashion as similar The driver cannot get the meaningful PHY status by reading PHY registers via MDIO/MDC. mdio: 00 , driver SMSC LAN8710/LAN8720 I want to read/modify the Phy registers at Linux, please note that iam able to read/modify the phy at u-boot using : mii read and mii write commands, but iam unable to read/modify when the linux boots. When raw is enabled, then ethtool dumps the raw register data to stdout. h: Defines for Linux ethtool. Thanks in advance. com> * long arguments by Andi Kleen. MX Forums . net> Cc: netdev@vger. blob: 8403316eb02bbad1c0bd91344ef82f774552d602 [] [] [] There is IP175C switch on this board. 3. 0) July 16, 2018 6 www. ‘sudo . Find and fix vulnerabilities Actions. The length and offset parameters Linux kernel to support Mellanox BlueField SoCs. I have been looking at the netlink interface for ethtool documentation and the existing libraries: neli and ethtool. Ethernet PHY Can we use mii and mdio read / write commands to access the Ethernet Phy register independently irrespectively to MII/RMII mode hardware configuration. Although i used the ethtool -d command, but it is not working in the linux. It seems to be ffffffff81b66fae t fixed_mdio_bus_exit ffffffff81af4468 t fixed_mdio_bus_init ffffffff813977f0 t fixed_mdio_read ffffffff81397610 t fixed_mdio_write ffffffff81a68760 d mdio_bus_class ffffffff813971b0 T mdio_bus_exit ffffffff81af4425 T mdio_bus_init ffffffff81396fd0 t mdio_bus_match ffffffff81a687e0 d mdio_bus_pm_ops ffffffff81396ff0 t mdio_bus_restore MDIO support must be enabled in the IP core at compile time. Can some please point me in the right direction to get star Skip to main content. /phytool write enp2s0/5/0xd 0x1e’ ‘sudo . In order to be able to read to/from a switch PHY built into it, DSA creates a slave MDIO bus which allows a specific switch driver to divert and intercept MDIO reads/writes towards specific PHY addresses. I found a nice example of how to do it using ioctl or ethtool - The MDIO bus¶ Most network devices are connected to a PHY by means of a management bus. Contribute to Mellanox/bluefield-linux development by creating an account on GitHub. 1530 * 1531 * When autoneg is disabled %ETHTOOL_SFECPARAM controls the FEC settings. * With autoneg on %ETHTOOL_GFECPARAM can be used to read the current mode. Reload to refresh your session. returning stale or previous data), or sends incorrect data on MDIO writes. h at master · cisco-open-source/ethtool The official Linux kernel from Xilinx. In the mii library, use the ethtool flag definition and stop including <linux/mdio. I am using a different PHY Complex operations can be performed atomically. SIOCGMIIREG on eth0 failed: Operation not supported. Thus, I suppose SGMII is using the tx_config_reg to configure EVERY REGISTER (in the Hi, I have a board with T1024 processor and I want to connect it with a peripheral by MDIO interface. For testing purpose we even disabled all the peripherals including mdio mac but something is affecting the diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index bc7eef1. is a PCS involved (and the ethtool reads are faked), when there is no MAC associated with a PHY, or when the MDIO device is not a PHY. 9-rc using KDAB Codebrowser which provides IDE like features for browsing C, C++, Rust & Dart code in your browser I noticed that when the NIC is not working though, the output of dmesg and ethtool are showing a different 'physical address' (not the MAC). ? Try to use mii-tool or ethtool. 5 mdio rx cpsw 2. c file). /phytool write enp2s0/5/0xe 0x0a00’ ‘sudo . The driver interfaces to the Gigabit Ethernet block of BlueField SoC via MMIO accesses to registers, which contain control information or pointers describing transmit and receive resources. > > In the same fashion as similar You signed in with another tab or window. 0 WITH Linux-syscall-note */ /* * ethtool. You switched accounts on another tab or window. We forced the network configuration register to enable Gigabit mode and full-duplex using devmem 0xE000C004 32 0x010EA542. -e --eeprom-dump. camel@achroite> In-Reply-To: For example a user can be use the ethtool support to get statistics: e. com> To: David Miller <davem@davemloft. In my first posts, I could access the registers of the AXI Ethernet PHY, confirmed by reading 0x5d03 (Xilinx PHY id) at MII index 11 (MDIO PHY address set in IP). mdio sends byte code to the mdio-netlink kernel module that can perform multiple operations, store intermediate values, loop etc. If file is specified, then use contents of previous raw register dump, rather than reading from the device. Therefore, read from the trap status register, modify the bits, then write to the modifiable trap register. over 4 years ago. - * mdio45_ethtool_gset_npage - get settings for ETHTOOL_GSET - * @mdio: MDIO interface - * @ecmd: Ethtool request structure - * @npage_adv: Modes currently advertised on next pages - * @npage_lpa: Modes advertised by link partner on next pages - * - * The @ecmd parameter is expected to have been cleared before calling - * mdio45_ethtool_gset_npage(). Examples phytool read eth0/0:3/1 In the MDIO PHY_ALIVE register, I read 0x0. The length and offset parameters Hi, I am working on T1040RDB and I wanted to access (read/write) management PHY registers which connected on mdio bus. Refer to the specification of It is possible that the MDIO interface of all instances of CPSW and PRUSS peripherals (if present) returns corrupt read data on MDIO reads (e. Please see https://github. Read register 0x8000F80 MDIO User Access Register and see all bit fields 0 (including the GO bit) root@am62xx-evm:~# devmem2 0x8000F80 /dev/mem opened. com Subject: [PATCH 04/16] sfc: Use generic MDIO functions and definitions Date: Wed, 29 Apr 2009 19:05:08 +0100 [thread overview] Message-ID: <1241028308. ethtool Command in Linux - Linux provides a useful command line tool “ethtool” to manage and troubleshoot the network interfaces. [PATCH 09/14] net/at91_ether: use ethtool and mdio from macb — Linux Network Development I'm trying to use the Ethtool ioctl API to retrieve linkspeed data from my NICs, but I just just get zeroes back in the ethtool_link_settings instance. If this resource helped you, let us know your care by a Thanks Tweet. android / kernel / common / bcmdhd-3. Connect EVM to a host PC via eth0 interface using an ethernet cable, keep eth1 interface RZT1 + YT8512H How to config register EtherCAT Phy？ RZT1 + KSZ8041 is ok；but The MDC MDIO pin of the RZT1 + YT8512H was viewed with an oscilloscope without any waveform。. > > In the same fashion as similar On 8/20/2012 4:55 PM, Bruce Allan wrote: > The helper functions which translate IEEE MDIO Manageable Device (MMD) > Energy-Efficient Ethernet (EEE) registers 3. Comments. phy_write: Function invoked by the DSA user MDIO bus when attempting to write to the switch When raw is enabled, then ethtool dumps the raw register data to stdout. Instant dev environments Issues. (see also Most of the Ethernet PHY support multi-functions and provide much more flexible configure capability to fine tune timing or function enable by configure their registers. Thank u. Retrieves and prints an EEPROM dump for the specified network device. How can we improve it? SHARE. 1. md for details - analogdevicesinc/linux Browse the source of linux v6. Working: dmesg: [ 1. * * For %ETHTOOL_GRXCLSRLCNT, @rule_cnt is set to the number of defined * rules Linux kernel variant from Analog Devices; see README. * FEC settings are configured by link autonegotiation whenever it's enabled. Ethtool is also reporting that we are in MII mode when I expect it should be in MII-X mode; checking the TI datasheet and manually reading back MDIO registers I confirmed that it is enabled in SGMII mode. I have a phydev pointer returned from MDIO bus scan, retrieved by: I am using am3352+Micrel's ksz8081 (RMII), and now the board works normally, but sometimes the two LEDs of the RJ45 connector are always on after the board is powered on (the network is abnormal), and the current judgment is that the PHY is not working normally. But now I am only able to read the Marvell PHY registers, confirmed by reading 0x5043 (Marvell PHY id) at MII index 1. Hi @lim. Once the tool is installed, use the following command to read/write internal PHY registers. 60 and 7. 1ab (LLDP). In most MDIO-connected switches, these functions would utilize direct or indirect PHY addressing mode to return standard MII registers from the switch builtin PHYs, allowing the ETHTOOL(8) System Manager's Manual ETHTOOL(8) NAME ethtool - query or control network driver and hardware settings SYNOPSIS ethtool devname ethtool -h|--help ethtool --version ethtool -a|--show-pause devname ethtool -A|--pause devname [autoneg on|off] [rx on|off] [tx on|off] ethtool -c|--show-coalesce devname ethtool -C|--coalesce devname [adaptive-rx on|off] You signed in with another tab or window. - phy_write: Function invoked by the DSA slave MDIO Hi @badFITimageto@8,. I am using a different PHY on a FMC. You signed in with another tab or window. Browse the source of linux v6. In the mdio library, assert that its own flags continue to match those in the ethtool interface. The first two examples are information queries and show the use of the different formats of the command. That said, I haven't come across a board that enables EEE. g. In order to analyse and show the value in Linux environment, and I needs to read and write the value of phy register via MDIO. The only thing lost is the phy irq support from at91_ether, but this can be added to macb and then benefit all users. net/man/8/ethtool The function cpsw_mdio_read() is used for reading MII registers of the external PHY schip (see cpsw. /mdio-tool w eth0 0x10 0x0 . 2. It is also possible that the MDIO interface becomes unavailable until the next peripheral reset (either by LPSC reset or global device reset with mdio_read mdio_write mdio_reset adjust_link DMA Access TX BD Ring management RX BD Ring management ETHTOOL Get/Set settingsHooks Get drv info Get Link Get /Set WOL ethtool support PHY Library X1082_03_032113. Linux kernel variant from Analog Devices; see README. For builtin switch Ethernet PHYs, this function should allow reading the link status, auto-negotiation results, link partner pages, etc. This driver supports TCP/IP network connectivity for that port, and provides back-end routines to handle basic ethtool requests. This serial interface includes two wires, an MDC clock driven by the MAC and a bidirectional data line which can be driven by up to 31 PHY slave devices. Read at address 0x08000F80 (0xffff8a41ef80): 0x00000000 3. Their prototypes are: ethtool ist ein Konfigurations- und Diagnosewerkzeug für kabelgebundene Netzwerkkarten. Please share the related information to fix the issue. com> * amd8111e support by Reeja John <reeja. The PHY registers can be accessed via driver IOCTLs. MDIO was originally defined in Clause 22 of IEEE RFC802. This adds a netlink interface to make reads/writes to mdio buses. c" is the driver performing packet processing and handling ethtool management requests. * FEC modes supported by the device can be read via %ETHTOOL_GLINKSETTINGS. The old API only supported a single read or write of a single register. The length and offset parameters Hence going forward it can only be * used to return a value to userspace with GET. Share with your friends. 9-rc using KDAB Codebrowser which provides IDE like features for browsing C, C++, Rust & Dart code in your browser From: Oleksij Rempel <> Subject [PATCH net-next v4 7/8] net: phy: dp83td510: add statistics support: Date: Sat, 21 Dec 2024 09:15:29 +0100 In order to be able to read to/from a switch PHY built into it, DSA creates a slave MDIO bus which allows a specific switch driver to divert and intercept MDIO reads/writes towards specific PHY addresses. I was able to access the same. For a full list of commands type ethtool -h or see the man page, ethtool(8), for a more comprehensive list and explanation. 1532 Linux Repository for digilent boards. 4 mdio rx cpsw 2. However, I believe there's some misunderstanding. 16. Also, it allows adjustments to parameters such as auto-negotiation, speed settings, and offload optio In order to be able to read to/from a switch PHY built into it, DSA creates a slave MDIO bus which allows a specific switch driver to divert and intercept MDIO reads/writes towards specific PHY addresses. TI__Genius 14680 points Pouyan, You can dump registers using ethtool, but for read/write Hopefully an easy question - I've build as system using based on the 12. My issue now is with the LINK signal, why it is always 0 and why the auto-negotiation is failing. 8 mdio wx cpsw 2. SIOCGMIIPHY on 'eth5' failed: Invalid argument. PLease provide your help/support. john@amd. com> * ixgb support by Nicholas Nunley <Nicholas. We probe the MDC and MDIO signal but we can NOT see any MDC/MDIO signal. Please add comments below to provide the author Hi Sooraj, In petalinux, you can use devmem utility to access registers. Now, I want to run a C code on the T1024, in which the peripheral can be configured by the MDIO interface. It is possible that the MDIO interface of all instances of CPSW and PRUSS peripherals (if present) returns corrupt read data on MDIO reads (e. In most MDIO-connected switches, these functions would utilize direct or indirect PHY addressing mode to return standard MII registers from the switch builtin PHYs, allowing the My setup is: Zynq PS Gem 2 <-> GMII to RGMII <-> switch I've disabled the MDIO bus on the Zynq PS and left it unconnected but I'm unable to change the RGMII output clock speed from 2. 6 0x1111 mdio wx cpsw 2. The MDIO bus¶ Most network devices are connected to a PHY by means of a management bus. feldman@intel. However when the ethernet cable is unplugged the host PC recognizes the link goes down while the S32G does not, it remains active. gceudzm rggzwn nlycbm azczsg sziwps shd oxyegyr xotay kahxnk aqs