Operating SystemLinux
BSP Release Status


Release Date


RepositoryPHYTEC Public Repos


This BSP provides a basis for development, deployment and execution of Linux based applications on the iMX7 System on Module (SOM). For detailed information on the various software components included in the release and how to use them, please refer to the Quickstart.



Linux Kernel4.9.11 (Based on NXP Release L4.9.11_1.0.0_ga)PHYTEC Source Repo
U-Boot2017.03 (Based on NXP Release L4.9.11_1.0.0_ga )PHYTEC Source Repo
Yocto2.2 Morty (Based on NXP Release L4.9.11_1.0.0_ga )PHYTEC Source Repo
QtNot Supported (Click here for more info)
Host OSTested on 64-bit Ubuntu 16.04 LTSUbuntu 16.04 Release

Yocto Machine Configuration Table

This BSP release supports various configurations of the phyBOARD-Zeta i.MX7. You will need to know which Yocto machine configuration corresponds to your kit in order to build the appropriate BSP. By default, only the standard kit configurations are shown in the table. If you have a different kit, use the filters below to search by Kit Part Number or SOM. The U-Boot defconfig and kernel device tree file names are important when creating custom U-Boot and kernel images outside of Yocto development.

Yocto Machine ConfigKit Part Number

SOM Part Number

(Click here for description)

ModulesU-Boot defconfigKernel Device Tree File


(i.MX7Dual Kit)







(i.MX7Solo Kit)






(i.MX7Dual Kit)




imx7d-pcm-061-2111101eNon-Standard Kit




imx7d-pcm-061-2111111eNon-Standard Kit






imx7d-pcm-061-2211101eNon-Standard Kit





Linux Device Tree Summary

The following is an example describing the structure of the device tree for the standard phyBOARD-Zeta Kit (machine configuration imx7d-phyboard-zeta-004).

Please look at the dts file corresponding to your machine configuration for the included dtsi files.

Hardware TargetDevice Tree File DescriptionsFilename
i.MX7D phyBOARD-Zeta (PB-01910-004)Default dts build targetimx7d-phyboard-zeta-004.dts

Processorimx7d.dtsi (includes imx7s.dtsi)
SOM (Superset) - enables all SOM features.


SOM Variant- excludes features that are not supported by the BOM population options for PCM-061-2110111C. imx7d-pcm-061-2110111c.dtsi
Carrier Boardimx7d-pba-c-09.dtsi (includes imx7s-pba-c-09.dtsi)
LCD Display Adapterimx7-peb-av-02.dtsi OR imx7-peb-av-06.dtsi
Expansion Boardimx7-peb-d-rpi.dtsi

Alternate dts imx7d-phyboard-zeta-004-m4.dtb: configure u-boot to use this DTS if running Linux on the Cortex-A7 while running FreeRTOS on the Cortex-M4

Compatible Hardware

Supported Hardware Versions

Hardware DescriptionPart Number

Configuration Details

(i.MX7 / DDR3 / eMMC or NAND / Ethernet PHY populated)

PCB Version


Dual / 1GB / 4GB eMMC / Yes



PCM-061-0502100E.A0 Solo / 256MB / 256MB NAND / No
PCM-061-2111101E.A0Dual / 1GB / 4GB eMMC / No
PCM-061-2211101E.A0Dual / 1GB / 8GB eMMC / No
PCM-061-2111111E.A0Dual / 1GB / 4GB eMMC / Yes
phyBOARD-Zeta Carrier Board




Device tree changes are required to support earlier SOM and Carrier Board revisions. Visit the PHYTEC Support Portal to open a support ticket for help on how to make the device tree changes.

Compatible Expansion Boards and Accessories

Module NamePart NumberPCB VersionDescription
PEB-D-RPI Expansion BoardPEB-D-RPI.A01503.0

Raspberry Pi HAT support plus:

  • UART1 (over USB)
  • JTAG
  • Two user buttons and two user LEDs

Connects to expansion header

LCD Display Adapter with 7'' capacitive display


(Includes AV module, display, and cable)


ETM0700G0DH6 LCD Display/ Capacitive touch interface

Connects to Audio/Video header

MIPI Expansion Board



DSI display and CSI camera adapter supporting:

  • Camera OmniVision LI-OV5640-MIPI-AF
  • Display NXP TFT3P5581-E

Connects to MIPI DSI connector on phyBOARD

WiFi/Bluetooth ModulePEB-WLBT-03-CA.A11478.1

LAIRD Sterling-LWB module

Connects to phyBOARD expansion header

Supported Raspberry Pi HATs (PEB-D-RPI Expansion Board)

PHYTEC supports a variety of Raspberry Pi HATs for use with the PEB-D-RPI Expansion Board. Other HATs may be hardware-compatible but have not yet been integrated and tested by PHYTEC. Demos and tests for supported HATs have been installed to the BSP file system, and are located in the /usr/share/phytec-rpihat-examples directory.

The following table lists supported Raspberry Pi HATs and the name of the subdirectory (relative to the phytec-rpihat-examples directory) that contains the demos for each HAT:

Raspberry Pi HATDemo Subdirectory
Raspberry Pi Sense HATsense-hat
Pimoroni Unicorn HD HATunicorn-hd-hat
Pimoroni Skywriter HATskywriter-hat
Anavi RabbitMax Flex HATflex-hat
Adafruit Capacitive Touch HATcapacitive-touch-hat
Adafruit DC & Stepper Motor HATmotor-hat
Adafruit 16-channel PWM/Servo HATservo-hat

BSP Download

Prebuilt images of BSP-Yocto-FSL-iMX7-PD18.2.0 can be downloaded and extracted from the link below:



Quickstarts for BSP-Yocto-FSL-iMX7-PD18.2.0:

BSP Yocto FSL i.MX7 PD18.2.x Quickstart

BSP Features

The following table lists the interfaces available from the phyCORE-iMX7 SOM. 

  • Implemented - driver support exists in the kernel. 
  • Tested  - the interface has been configured in the device tree and was tested by PHYTEC 
  • Status in Device Tree - the corresponding device tree nodes are enabled in the device tree. See Linux Device Tree Summary for more information.

    The "Status in Device Tree" column is specifically for the standard phyBOARD-Zeta kit (machine configuration imx7d-phyboard-zeta-004).

    Please look at the dts file corresponding to your machine configuration for differences.

InterfaceDetailImplementedTestedStatus in Device TreeNotes
UARTuart1YesYesOkayMicro-USB B connector on PEB-D-RPI

Micro-USB B connector on PEB-D-RPI

Disabled for use as serial console on Cortex-M4 FreeRTOS

uart3YesNoDisabled 1 expansion header
uart4YesNoDisabled 1
uart5YesYesOkayRS232 default serial console at Connector X2
uart6YesNo Disabled 1  expansion header
uart7YesYesOkayexpansion header - Configured for BT on PEB-WLBT-03
I2Ci2c1YesYesOkayexpansion header
i2c2YesYesOkayAV Connector X4
i2c3YesNo Disabled 1  

expansion header

Used for PEB-D-RPI expansion board HAT detection

EthernetRGMII1YesYesOkayKSZ9031RNX PHY on SOM, Connector X8
RGMII2YesYesOkayKSZ9031RNX PHY on CarrierBoard, Connector X7
SAIsai1YesNoDisabled 1 Audio/Video Connector X4
sai2YesNoDisabled 1 expansion header
sai3YesNo Disabled 1  
MMC/SDIOSD1YesYesYesmicroSD slot connector X11
SD2YesNoDisabled 1 expansion header
SD3YesYesOkaysignals routed to eMMC.
CommunicationMultiCore Communication with Cortex-M4 (RPMsg)YesYesOkaySee FreeRTOS release for more info.
Laird Sterling LWB BluetoothYesNoDisabledon PEB-WLBT-03. See Not Tested section for details
Laird Sterling LWB WiFiYesNo Disabled on PEB-WLBT-03. See Not Tested section for details
USBusb1YesYesOkayUSB-A Host Connector X9
usb2YesYesOkayUSB-AB OTG Connector X10
usbh (HSIC)YesYesDisabledexpansion header
CANcan1YesYesOkayHeader X1
can2YesNoDisabled 1
SPIspi1YesNoDisabled 1 expansion header
spi2YesNoDisabled 1 expansion header
spi3YesNoDisabled 1 expansion header
spi4YesNoDisabled 1
ADCadc1YesYesOkayexpansion header
Parallel Display and TouchParallel LCD DisplayYesYesOkayvia expansion board PEB-AV-02
Analog LCD TouchYesYesOkay

Capacitive ETM-FT5x06

via expansion board PEB-AV-02


PWM via pwm4

via expansion board PEB-AV-02

MIPI DSI/CSI2-lane MIPI DSI DisplayYesYesDisabled

Display TFT3P5581-E

via expansion board PEB-AV-06

2-lane MIPI CSI CameraYesYesDisabled


via expansion board PEB-AV-06


User Buttons and LEDs


User LED GPIO2_10 on CarrierBoard

Two user LEDs and two buttons on PEB-D-RPI


8/16-bit NAND Flash (GPMC)YesYesDisabledMT29F4G08 - not populated in default SOM configuration
SPI NOR FlashYesYesOkayN25Q128A on QSPI_A
EEPROM on SOMYesYesOkayM24C32 on i2c1
EEPROM on eval boardYesYesOkayCAT24C32 on i2c4 PEB-D-RPI

On SD3


PCM-061-2110111C.A1: MTFC4GACAJCN-4M IT

RTCInternal i.MX7YesYesOkaySNVS RTC
External RTCYesYesOkayRV-4162-C7 on I2C1
Power ManagementPMICYesYesOkayPF3000 on I2C1

ARM JTAG 20 connector on PEB-D-RPI

PCIemini-pcieYesYesOkayconnector X12

[1] Interface requires additional configuration, such as pinmuxing. It may be possible to change the software configuration to utilize this interface even if it is not being set in the board's default configuration. Please see NXP's i.MX7D Technical Reference Manual for more information on the various modes each pin can be muxed to.

New in this Release


  • General
    • Support for connecting the following Raspberry Pi HATs to the PEB-D-RPI:
      • Raspberry Pi Foundation Sense HAT
      • Pimoroni Unicorn HD HAT
      • Pimoroni Skywriter HAT
      • Anavi RabbitMax Flex HAT
      • Adafruit Capacitive Touch HAT
      • Adafruit DC & Stepper Motor HAT
      • Adafruit 16-Channel PWM/Servo HAT
    • Created PHYTEC RPi.GPIO Python library to be a drop-in replacement for RPi.GPIO for supported Raspberry Pi HATs.
  • Linux
    • Device Tree Compiler
      • Version: Upgraded to upstream v1.4.4
        • Version bump adds support for compiling device tree overlays used to support the Raspberry Pi HATs listed in General.
    • Device Tree
      • Created PEB-D-RPI expansion board dts file "imx7-peb-d-rpi.dtsi".
      • Moved the general contents of "imx7d-phyboard-zeta-001-m4.dts" and "imx7s-phyboard-zeta-002-m4.dtsi" to "imx7-phyboard-zeta-m4.dtsi" for inclusion with i.MX7 kit Cortex-M4 dts files. The dts files "imx7d-phyboard-zeta-001-m4.dts" and "imx7s-phyboard-zeta-002-m4.dts" updated to reflect this change.
      • Created device tree files for i.MX7 Dual-based kit imx7d-phyboard-zeta-004. These files are named "imx7d-phyboard-zeta-004.dts" and "imx7d-phyboard-zeta-004-m4.dts".
      • Added support for module PEB-AV-06 adapter for MIPI CSI and DSI interfaces
    • Drivers
      • Created phytec-hat driver to support the Raspberry Pi HATs listed in General.
  • Yocto
    • meta-phytec layer
      • Created new machine for i.MX7 Dual Kit with PEB-D-RPI expansion board. The new machine name is imx7d-phyboard-zeta-004.
      • Created and added recipes to support the Raspberry Pi HATs listed in General.

Fixed in this Release


Not Tested

  • PEB-WLBT-03
    • Driver support for Laird Sterling LWB has not been tested with Linux v4.9.11
  • Booting via network
  • Qt5 - NXP includes "fsl-image-qt5" Yocto Image in the BSP but it is meant for i.MX SoCs with hardware graphics, and is not supported by NXP or PHYTEC for the i.MX7D.

Known Issues

PHYTEC Known Issues

  • Ethernet:
    • iperf3 is included with the Morty Yocto BSP. With UDP, this command reports much lower bandwidth than expected when compared with iperf command.
  • eMMC:

    • Flashing with U-Boot: 
      • fsl-image-validation-imx-imx7d-phyboard-zeta-001.sdcard image is too large to be loaded into memory (1GB) from u-boot.
      • Workaround: Partition and flash eMMC from Linux instead. See Quickstart for instructions.
    • HS400 warnings/errors: configure eMMC to run at maximum 100MHz as a work around. See commit b8f6c1b7780 for more information.
  • Linux IMX Busfreq driver:
    • Driver disabled by default due to impaired UART console functionality when the system is idle (Low frequency setpoint).
    • For dynamic bus frequency scaling and improved power consumption, the busfreq driver can be enabled in the device tree by removing the "fsl,freq_scaling_disabled" property in imx7-phycore-som.dtsi. It can also be controlled in Linux sysfs: 

      echo 1 > /sys/bus/platform/drivers/imx_busfreq/soc\:busfreq/enable 
  • NAND:
    • 256MB NAND is too small to flash fsl-image-validation-imx filesystem. Booting from NAND was tested with core-image-minimal Yocto image, which is included with release binaries.

NXP Known Issues

See i.MX Linux Release Notes from NXP in  L4.9.11_1.0.0 BSP Documentation

Technical Support

For further information or to report any problems, visit the PHYTEC Support Portal