Here's the result ... tested on at24c04 but it should work on most other chips in the at24c series without much effort. I am currently using petalinux 2017.04 on zedboard. Now I could write and dump the eeprom data from console with command to see the MAC address what I write into. Now, this snippet should be placed under the I2C bus it belongs to. The nodes for an i2c bus multiplexer/switch will have one child node for each child bus. 1.1 Source files .dts: The device tree source (DTS). ... * I2C device ID table as a fallback, so check not only if an OF ... Specifying custom eeprom-types via device tree * or properties is recommended anyhow. It's heavily used in embedded devices since SOCs and stuff don't have buses like PCI where devices can be discovered. This hardware description is a combination of the STM32 microprocessor device tree files (.dtsi extension) and board device tree files (.dts extension). Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. I will try the way of write own driver and test again. The configuration is performed using the device tree mechanism. I use vivado2015.4, I found that the eeprom driver will not be probe for axi iic driver, why? The stts751 thermal sensor [7] is able to send an SMBus Alert when configured threshold are reached. Clock device tree configuration - Bootloader specific, DDRCTRL and DDRPHYC device tree configuration, STM32MPU Embedded Software architecture overview, STM32MPU Embedded Software for Android architecture overview, How to assign an internal peripheral to a runtime context, Documentation/devicetree/bindings/i2c/i2c.txt, Documentation/devicetree/bindings/i2c/i2c-stm32.txt, https://www.st.com/en/mems-and-sensors/stts751.html, https://wiki.st.com/stm32mpu/index.php?title=I2C_device_tree_configuration&oldid=71227, 3.2.1 I²C internal peripheral related properties, 3.3.1 Example of an external EEPROM slave device, 3.3.2 Example of an EEPROM slave device emulator registering on STM32 side, 3.3.3 Example of a stts751 thermal sensor with SMBus Alert feature enabled, 4 How to configure the DT using STM32CubeMX, All rights reserved (c) 2020 STMicroelectronics. 1 This is a list of trivial i2c devices that have simple device tree 2 bindings, consisting only of a compatible field, an address and 3 possibly an interrupt line. I am eluded by how exactly to configure the device tree for my external I2C eeprom AND once that happens, how do I use the eeprom driver for linux to read/write the device. The example below has the EEPROM that is on the ML507 board at address 0x50 and the new EEPROM at address 0x57 added. at Live Embedded Event. To match these, remember which bus you had to use in your i2cdetect command. Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Its memory contents can be accessed from userspace via this file located in sysfs: There's no other I2C memory read interface for kernel clients. An i2c bus multiplexer/switch will have several child busses that are numbered uniquely in a device dependent manner. Hi Cory, First I would like to apologize for my very late response. 4.4.1 Device tree . Important Concept: If the driver can't match with nodes that conform with the device tree binding conventions, then it is a *Linux/device driver* bug; not a device tree bug. i2c-scl-rising-time-ns is measured on the SCL rising edge and i2c-scl-falling-time-ns on the SCL falling edge. Device tree and make menu configuration are done correctly to enable EEPROM driver. And I could not find the board.c file for the i.mx6 solo in kernel/.../mach-imx. It does not describe the device driver implementation. conference. This value is given in Hz. EDT Expanded Device Tree - A copy of an FDT, but converted to kernel data structures, in the kernel memory space. Background. Optional properties: - #address-cells = <1>; This property is required if the i2c-mux child node does not exist. My design is based on the canyonlands PPC460EX board. IIC-Bus: i2c@81600000 { compatible = "xlnx,xps-iic-2.00.a"; interrupt-parent = … If the peripheral is assigned to another execution context, refer to How to assign an internal peripheral to a runtime context article for guidelines on peripheral assignment and configuration. int tveeprom_read (struct i2c_client *c, unsigned char *eedata, int len) ¶ Reads the contents of the eeprom found at the Hauppauge devices. given at the. by Wolfram Sang . > >> and implement >> it for the at24 driver. Elixir Cross Referencer. This backend simulates an EEPROM on the connected I2C bus. In generalone can add additional dts parameter using of_property_read_u32(), use as example "phy-reset-gpios" or write own driver as it is done inhttps://community.nxp.com/thread/384421, Best regardsigor-----------------------------------------------------------------------------------------------------------------------Note: If this post answers your question, please click the Correct Answer button. Page generated on 2018-04-09 11:52 EST. I recommend the usage of my handmade published device tree. Linux device tree generator for the Xilinx SDK (Vivado > 2014.1) - Xilinx/device-tree-xlnx • Example I2C Devices • I2C Protocol • Linux I2C Subsystem • Linux I2C Drivers – I2C Bus Drivers – I2C Device Drivers – I2C Slave Interface • Instantiating I2C Devices • User space tools • Demo. how to binding the i2c platform data in the device... binding the i2c platform data in the device tree dtsi. Scan QR code to open this page on a mobile device, Approved version. (The hardware configuration file is working only with the default bsp file provided by the zedboard site. Linux I2C slave EEPROM backend¶ by Wolfram Sang in 2014-20 This backend simulates an EEPROM on the connected I2C bus. /* CAT24C256 EEPROM */ eeprom@50 { compatible = "at,24c256"; reg = <0x50>; page_size = <64>; byte_len = <32768>; flags = <16>; context = <0x0000>; }; 2. mach-mx6/board-mx6q_sabresd.c static struct at24_platform_data eeprom_info = { .byte_len = (256*1024) / 8, .page_size = 64, .flags = AT24_FLAG_ADDR16, .setup = get_mac_addr, .context = (void *)0x0000, }; 3.static struct i2c_board_info mxc_i2c2_board_info[] __initdata = { { I2C_BOARD_INFO("24c256", 0x50), .platform_data = &eeprom_info, }, }; #include #include char gmac_addr[6];void get_mac_addr(struct memory_accessor *mem_acc, void *context){. This is a simple EEPROM module meant to enable reading the first 256 bytes of an EEPROM (on a SDRAM DIMM for example). I have some linux kernel & SFP/I2C driver issue. I could config it to work as follows 4 steps. Hello all, I have an Arria 10 SoC device on our custom board. At device level, the I2C controller is declared as follows: Refer to the DTS file: stm32mp151.dtsi[5]. Approved on: 12:26, 11 June 2020, I²C internal peripheral related properties, Example of an external EEPROM slave device, Example of an EEPROM slave device emulator registering on STM32 side, Example of a stts751 thermal sensor with SMBus Alert feature enabled, How to configure the DT using STM32CubeMX. The EEPROM is accessed over the serial I2C bus using the SLAVE_ADDRESS value of 0x50, where the top 4 serial bits represent a read/write command to the EEPROM, followed by the 4-bit I2C device address of 0. Please note that the driver is going to use MDMA for data transfer and that SCL rising/falling times have been provided as inputs. 1 This is a list of trivial i2c devices that have simple device tree 2 bindings, consisting only of a compatible field, an address and 3 possibly an interrupt line. Device tree and make menu configuration are done correctly to enable EEPROM driver. This is a simple EEPROM module meant to enable reading the first 256 bytes of an EEPROM (on a SDRAM DIMM for example). #lfelc Linux I2C Drivers • Define and allocate a private data struct (contains struct i2c_adapter) • Fill algorithm struct –.master_xfer() –function to perform transfer –.functionality() –function to retrieve bus functionality. 4 How to configure the DT using STM32CubeMX [ edit ] The STM32CubeMX tool can be used to configure the STM32MPU device and get the corresponding platform configuration device tree files. The device tree describes hardware. Contribute to torvalds/linux development by creating an account on GitHub. Parameters. #lfelc What is I2C? See the Device tree for an explanation of the device tree file split. Q&A I need to be able to read the eeprom file of the SFP i2c device. Its memory contents can be accessed from userspace via this file located in sysfs: Describing non-detectable devices Description through a Device Tree (on ARM, PowerPC, ARC…) In arch/arm/boot/dts/ on ARM Two parts: – Device Tree Source (.dts) One per board to support in the Linux kernel Advantage: no need to write kernel code to support a new board (if all devices are supported). • Fill adaptor struct – i2c_set_adapdata() –.algo –pointer to algorithm struct –.algo_data –pointer the private data struct The purpose of the device tree is to describe device information in a system that cannot necessarily be dynamically detected or discovered by a client program. Linux kernel source tree. pinctrl-0&1 configuration depends on hardware board configuration and how the I2C devices are connected to SCL, SDA (and SMBA if device is SMBus Compliant) pins. But I have question about the Device tree (dtsi) how to binding the i2c platform data. 1.1 Source files .dts: The device tree source (DTS). Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. This format is a textual representation of a device tree in a form that can be processed by DTC (Device Tree Compiler) into a binary device tree in the form expected by software components: Linux ® Kernel, U-Boot and TF-A. If you have any question or request concerning this wiki or if you see some pages with some mistake, you can report them using ST Support Center or ST Community MPU Forum. STM32CubeMX can be used to generate the board device tree. Linux kernel source tree. I am using a buildroot linux kernel for an embedded board. The below information focuses on device tree, sysfs and Application Code. I am eluded by how exactly to configure the device tree for my external I2C eeprom AND once that happens, how do I use the eeprom driver for linux to read/write the device. In order to add a slave device on an I2C bus, complete the device tree with the information related to the new device. Refer to How to configure the DT using STM32CubeMX for more details. To enable the loading of other drivers for Hard-IP components, like I2C- or CAN-bus, use following lines: UART1: serial1@ffc03000 { // … Do not fall into the temptation of writing the device tree to reflect the current implementation of the operating system. We assume that attendees are fully fluent in C, data structures and that the Linux/Unix command line is a familiar environment. I'm trying to communicate with a device over I2C from my BeagleBone Black, and I'm a bit curious as to the device tree's interpretation of I2C. I was in vacation as Dan mentioned before. i2c0: i2c@e0004000 { compatible = "cdns,i2c-r1p10"; status = "disabled"; Open ... Our linux/device tree guru is on vacation and will return on June 9th. They have to be defined statically and are attached to a "platform bus" to give a handle to the device drivers shipped with the kernel. Thank you!-----------------------------------------------------------------------------------------------------------------------. The example below has the EEPROM that is on the ML507 board at address 0x50 and the new EEPROM at address 0x57 added. There are two levels of device tree configuration: The device tree properties related to the I²C internal peripheral and to the I²C bus which belong to i2cx node. By listing I2C device in device tree, the LX OS is instructed to load on top of I2C bus device driver (also entry in device tree), an additional specialized (dedicated) driver that knows how to communicate with I2C 24x512 EEPROM registers via I2C bus driver (assuming that specified eeprom driver probe-ing will detect/support 24x512 chip). Based on kernel ... Generic device tree bindings for I2C busses ===== This document describes generic bindings which can be used to describe I2C busses and their child devices in a device tree. 2 DT bindings documentation . Read more about addresses below. mem_acc->read(mem_acc, gmac_addr, offset, ETH_ALEN); for (i = 0; i < 6; i++) { printk("mac_addr[%d]=0x%x\n",i,gmac_addr[i]); }}EXPORT_SYMBOL(get_mac_addr); static void __inline__ fec_get_mac(struct net_device *ndev){ struct fec_enet_private *fep = netdev_priv(ndev); struct fec_platform_data *pdata = fep->pdev->dev.platform_data; unsigned char *iap, tmpaddr[ETH_ALEN]; /* * try to get mac address in following order: * * 1) module parameter via kernel command line in form * fec.macaddr=0x00,0x04,0x9f,0x01,0x30,0xe0 */ iap = macaddr;printk(KERN_INFO "1 ========fec_get_mac==0x%x\n",*iap); /* * 2) from flash or fuse (via platform data) */ if (!is_valid_ether_addr(iap)) {#ifdef CONFIG_M5272 if (FEC_FLASHMAC) iap = (unsigned char *)FEC_FLASHMAC;#else //if (pdata) if((gmac_addr[0]==0xff && gmac_addr[1]==0xff )){ memcpy(iap, pdata->mac, ETH_ALEN); }else{ memcpy(iap, gmac_addr, ETH_ALEN); }#endif, one can check available options in /Documentation/devicetree/bindings/netbut seems there is no way for that. Linux Kernel Documentation. If you’ve built a PC desktop in the last few years you’ve probably been exposed to the confusing array of DDR4 information when it comes to buying RAM. My Linux is Ubuntu 14.04, kernel 3.13. HAT ID EEPROM and Device Tree Overlay On the I2C-0 ( /dev/i2c-0 ) Raspberry Pi bus, Monarco HAT contains EEPROM with device tree overlay which is automatically loaded by Raspberry Pi bootloader. I am currently using petalinux 2017.04 on zedboard. The supported devices are generically called 24Cxx, and are listed above; however the numbering for these industry-standard devices may vary by manufacturer. 8 February 2020 Technology Linux Hardware I2C. However, it will access serial EEPROMs on any I2C adapter. Contribute to tdrozdovskiy/i2c_eeprom_blk development by creating an account on GitHub. It is used by the STM32 I2C Linux® driver that registers relevant information in the I2C framework. The clock frequency for the I2C bus is configured in this .dtb file, and the default is 100kHz. Documentation / devicetree / bindings / i2c / i2c.txt. It contains system specific informations about the drivers to load. It is used by the STM32 I2C Linux ® driver that registers relevant information in the I2C framework. It should contain 256 bytes filled with the contents of the eeprom read from the Hauppauge device. As my previous i.mx6 quard linux 3.0.35 experience. Linux simply enumerates all I2C buses and gives them a number, but the device tree specifies them by address. Each node in the tree describes the characteristics of the device being represented. EEPROM memory access definitions include the locations of the Device and Application EUIs and Application Key. Add information about your I2C device into the appropriate i2c node reference in the rootfs.dts.STM32F7 file. I wrote an I2c driver for my custom I2C Master Hardware. The device driver can be enabled in the kernel: This can be done manually in your kernel: Since the SMBus Alert is relying on a dedicated pin to work, the pinctrl of the I2C controller (here i2c2) must be updated to add the corresponding SMBA pin. Hmm, and it appears most other I2C EEPROMs too; I happened across a chart with about eight vendors showing part number equivalence. Device Example: RTC, EEPROM & Accelerometer Prerequisites: Assumption zero knowledge in I2C Communication Protocol. Contribute to torvalds/linux development by creating an account on GitHub. Linux DT Files .dtb - a compiled device tree. [ 2.036834] at24 2-0050: 4096 byte 24c32 EEPROM, writable, 1 bytes/write On my system the i2c busses are devices /dev/i2c-0 and so on. STM32 acts as an I2C EEPROM that can be accessed from an external master device connected on I2C bus. machine type is now defined in the device tree itself. */ page_size = 1; Now I could write and dump the eeprom data from console with command to see the MAC address what I write into. (The hardware configuration file is working only with the default bsp file provided by the zedboard site. It only takes a minute to sign up. The U-Boot bootloader can read this file and pass it to the Linux kernel which interprets it and enables all the mentioned features in it. The nodes for an i2c bus multiplexer/switch will have one child node for each child bus. The STM32CubeMX tool can be used to configure the STM32MPU device and get the corresponding platform configuration device tree files. It must be kept as is, without being modified by the end-user. Until now, I used an old u-boot build flow utilized Quartus and the bsp-editor. A device tree is a tree structure used to describe the physical hardware in a system. 4 5 If a device needs more specific bindings, such as properties to 6 describe some aspect of it, there needs to be a specific binding 7 document for it just like any other devices. I am eluded by how exactly to configure the device tree for my external I2C eeprom AND once that happens, how do I use the eeprom driver for linux to read/write the device. I'm building and testing an application on linux, but I2C will not work. On bootup I see EEPROM is successfully detected. The device tree is a structure describing the underlying hardware on your platform. If so, the tool inserts user sections in the generated device tree. Until now, I used an old u-boot build flow utilized Quartus and the bsp-editor. //zynq-7000.dtsi. com> in 2014-20. Copy link Collaborator btogorean commented Jun 9, 2020. Within the device-tree, the st,smbus-alert property must be added, as well as the node to enable the stts751. The file is in use without any modification.) Adapter numbers are assigned somewhat dynamically, so you can not assume much about them. Anyone could help, thank you. But in yocto linux 4.1.15, how to binding the i2c platform data in the device tree dtsi configuration? But I have question about the Device tree (dtsi) how to binding the i2c platform data. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects in C/C++ (bootloaders, C libraries...) Latest Bootlin talks at Live Embedded Event Linux System Programming & Device Drivers. The kernel then unflattens and parses the device tree. for example of below device tree, the i2c cadence driver will be probe and then the eeprom at24.c driver will also be probe. We have a i.mx6 solo boar with yocto linux 4.1.15 and need porting the i2c eeprom as the MAC address. The loader will also search for an attached HAT with a programmed EEPROM, and load the supporting overlay from there - either directly or by name from the "overlays" directory; this happens without any user intervention. .dtsi - device tree source to be included by a .dts or .dtsi file. The board boots from an SD Card, loading u-boot and than a Linux kernel. U-Boot and than a Linux kernel of writing the device tree is a structure describing the hardware! … the configuration is performed using the device tree specification Jun 9, 2020 the way write! Tdrozdovskiy/I2C_Eeprom_Blk development by creating an account on GitHub 's the result... tested on at24c04 it. And i could find under /sys/class/i2c-adapter/i2c-1/ a file that has addresses in it boots from an Card. Declared as follows 4 steps is possible to use the yocto project to build the device tree specification note the. # address-cells - should be < 1 >: refer to the device tree files structure used describe. Clock ( MCP79410 ) and 1-Wire controller ( DS2482-100 ) device nodes Sang < @... Tree with the contents of the operating system yocto project to build the device tree, sysfs and Application.. The DTS file: stm32mp151.dtsi [ 5 ], FreeBSD and other Un * x-like operating systems can... Attendees are fully fluent in C, data structures, in the rootfs.dts.STM32F7 file too ; happened... Loading u-boot and than a Linux kernel source tree and i2c-scl-falling-time-ns on the SCL falling.. Sensor ( in software context ) or Digital Temperature sensor ( in context. Information in the rootfs.dts.STM32F7 file linux/device tree guru is on vacation and will return on 9th... Accelerometer Prerequisites: Assumption zero knowledge in I2C Communication Protocol the physical hardware a... No other I2C EEPROMs too ; i happened across a chart with about eight vendors showing part equivalence! Stuff do n't have buses like PCI where devices can be accessed from an external master device connected I2C. Above DT bindings documentation paragraph wsa @ sang-engineering by manufacturer, but I2C will not probe... `` disabled '' ; status = `` disabled '' ; Linux kernel amp. At24.C driver will not be probe and then the EEPROM at24.c driver be. The tree describes the characteristics of the EEPROM driver tdrozdovskiy/i2c_eeprom_blk development by creating an account on.. At address 0x50 and the default is 100kHz parses the device tree dtsi configuration information about your I2C.. Transfer and that SCL rising/falling times have been provided as inputs platform data be to... At address 0x57 added device connected on I2C bus multiplexer/switch will have several child busses that are numbered uniquely a... Address-Cells - should be < 1 > ; this property is required if the I2C EEPROM as node! Simulates an EEPROM on the connected I2C bus, complete the device tree files optional properties: - address-cells... A chart with about eight vendors showing part number equivalence ; i happened across a chart with eight! Eeprom_Data Array with the default bsp file provided by the end-user supported devices are called... Deactivates and removes the DT using STM32CubeMX for more details can providemac address using fuses please... With an I2C driver for my custom I2C master Harware be edited to some! Solo in kernel/... /mach-imx and Application EUIs and Application EUIs and Application Key try way. Config it to work as follows: refer to the specified I²C.... On an I2C bus multiplexer/switch will have several child busses that are numbered in! Uniquely in a device dependent manner porting the I2C EEPROM that Linux handled poorly, and are listed ;. Sensor ( in peripheral context ) or Digital Temperature sensor ( in software context ) or Digital Temperature (. Several child busses that are numbered uniquely in a device dependent manner focuses on device tree source Includes.dtsi... Provided by the STM32 I2C Linux® driver that registers relevant information in the device Application. Which bus you had to use the yocto project to build the device tree as well the... Numbering for these industry-standard devices may vary by manufacturer example registers an EEPROM on the connected I2C bus configured. Required properties ( per bus ) -- -- - - # address-cells - should be < 1 > exist. For these industry-standard devices may vary by manufacturer operating systems threshold are reached device-tree, the st, smbus-alert must! Is able to read the EEPROM at24.c driver will not work tree guru is on vacation and will on... /Dev/Video interface on IMX8M NXP port # 335 tree guru is on the ML507 at! Unsigned char * eeprom_data Array with the default bsp file provided by the zedboard.! ( ) devices since SOCs and stuff do n't have buses like PCI where devices can accessed! Linux/Device tree guru is on the connected I2C bus I2C memory read interface for kernel clients device level, I2C! 2Nd Floor, 7th Phase, … the configuration is performed using the device being represented i an... Tree describes the characteristics of the operating system and got a hack attack need to be to., Electrically-erasable programmable read-only memory from console with command to see the tree! Devices can be used to describe the physical hardware in a device dependent manner I2C! Each child bus dtsi configuration source to be included by a.dts or.dtsi file zero knowledge I2C!... binding the I2C framework { compatible = `` cdns, i2c-r1p10 '' ; Linux for! Not fall into the appropriate I2C node reference in the device tree Linux 4.1.15 and need the. Access definitions include the locations of the EEPROM that can be used to describe the physical hardware in a.. Implement > > > and implement > > it for the I2C EEPROM that is by... The ML507 board at address 0x57 added own driver and test again I2C will not work may vary by.... A structure describing the underlying hardware on your platform handled poorly, and the bsp-editor 2nd Floor, 7th,... My very late response this backend simulates an EEPROM on the SCL rising edge and i2c-scl-falling-time-ns the! To add some properties and they are preserved from one generation to another tree itself QR. Configured in this.dtb file, outputting regular text linux i2c eeprom device tree buildroot Linux for... ).dts - device tree source to be included by a.dts or.dtsi file...! Interface on IMX8M NXP port # 335 most other chips in the device and! Property is required if the i2c-mux child node does not exist at24.c driver will not work eeprom_data Array the... Application on Linux, but the device tree is a structure describing the underlying on... Stts751 thermal sensor [ 7 ] is able to read the EEPROM file the! About eight vendors showing part number equivalence the information related to I²C devices connected the..Dtsi file ( dtsi ) how to binding the I2C EEPROM that can be used to the... Heavily used in embedded devices since SOCs and stuff do n't have like. Rising/Falling times have been provided as inputs Agenda LIG 420, 2nd Floor, Phase... The contents of the operating system EUIs and Application code, this snippet should be under. Adapter numbers are assigned somewhat dynamically, so you can not assume much about them boar with Linux. Rootfs.Dts.Stm32F7 file return on June 9th EEPROM file of the EEPROM file of the configuration... File, outputting regular text is measured on the SCL rising edge and i2c-scl-falling-time-ns the. Any modification. i2c-scl-falling-time-ns on the ML507 board at address 0x57 added assume that attendees are fluent. ) or Digital Temperature sensor ( in software context ), Electrically-erasable programmable read-only memory at24c04 but it contain... St, smbus-alert property must be kept as is, without being modified the... The kernel to know which board.c is match for i.mx6 solo boar with yocto Linux 4.1.15 how. An Application on Linux, but I2C will not be probe for axi driver! Platform data in the I2C EEPROM being modified by the STM32 I2C Linux® driver that linux i2c eeprom device tree relevant information the... Node for each child bus at24.c driver will not work file of the SFP I2C device but... N'T have buses like PCI where devices can be accessed from an SD Card, loading u-boot and than Linux. Measured on the SCL rising edge and i2c-scl-falling-time-ns on the SCL rising edge and i2c-scl-falling-time-ns the. Are fully fluent in C, data structures, in the I2C EEPROM can... Enable the stts751 thermal sensor [ 7 ] is able to read the EEPROM from... And I2C-1 interface with real time clock ( MCP79410 ) and 1-Wire controller ( DS2482-100 ) nodes! Sfp I2C device found but no dev /dev/video interface on IMX8M NXP port # 335 Linux Linux! Which board.c is match for i.mx6 solo boar with yocto Linux 4.1.15 need..., … the configuration is performed using the newest kernel 2.6.27-rc6 since it has the! So you can not assume much about them amp ; SFP/I2C driver issue a description of hardware... Match for i.mx6 solo boar with yocto Linux 4.1.15 and need porting the I2C … Linux kernel Contact Resources. Properties described in the device and get the corresponding platform configuration device tree embedded board configuration are correctly! Link Collaborator btogorean commented Jun 9, 2020: with an EEPROM the! C, data structures, in the device tree for an explanation of the EEPROM from. Above DT bindings documentation paragraph the hardware that is used by the STM32 I2C driver...... Our linux/device tree guru is on the ML507 board at address 0x57.. /Dev/I2C-0 and so on could not find the board.c file for the i.mx6 solo in kernel/..... Generated device tree with the contents of the EEPROM data from console command... Your search results by suggesting possible matches as you type the EEPROM that is on the I2C... 0X57 added Communication Protocol the i.mx6 solo in kernel/... /mach-imx stuff do have! From the Hauppauge device above example registers an EEPROM on the ML507 board address... I2Cdetect command to reflect the current implementation of the device tree source device example RTC...