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BSP Layers and Reference Images for Yocto Project Issue Tracker

 

The following table contains known issues, scheduled bug fixes, and feature improvements for the Toradex BSP Layers and Reference Images for Yocto Project.

The tickets are split into two major states:

  • Submitted (open): new features and bug fixes for BSP versions that have not yet been released. They may be scheduled for a specific release version; not planned; or in our backlog. All of them have one of the following states:
    • Known Issue: a bug or unexpected behavior that has been reported and is pending a fix. Once fixed, the status will transition to Fixed.
    • Feature Request: a new feature that may be added to a future release. Once released, the status will transition to New Feature.
  • Released (closed): new features and bug fixes for BSP versions that have already been released. All of them have one of the following states:
    • Fixed: a bug that has been fixed and released.
    • New Feature: something that didn't exist before and was added to a new release.


Any schedules are not guaranteed but reflect the current planning. The planning could be shifted due to priority changes.

Issues that are scheduled for a specific version will be integrated into the mentioned version of the BSP.

We will update this table continuously in order to always provide the latest state of our development plan. Please see also the Linux Support Strategy to learn more about the different releases.

Clear Filter
Issue #StatusSubjectModuleSubsystemWinCE OSSeveritySubmitted for Mainline

6.5.0 (Release date: 2023-12-31)
Embedded Linux BSP Q4 2023 Quarterly Release
ELB-5491FixedUSB OTG Not Working With Iris DTColibri iMX8XDevice Tree, USBLowNo

Description: USB gadget does not work on Iris carrier board (both V1 and V2.0) when using the iris device tree (e.g. `imx8qxp-colibri-iris-v2.dts`).

Workaround: Use the Colibri Evaluation board device tree (e.g. `imx8qxp-colibri-eval-v3.dts`) as it comes by default on the reference images.

ELB-5484FixedAP Does Not Work Anymore After `hostapd` RestartApalis iMX8, Colibri iMX6ULL, Colibri iMX8X, Verdin AM62, Verdin iMX8M Mini, Verdin iMX8M PlusWi-FiLowNo

Description: Restarting hostapd makes it impossible for clients to connect to the AP.

Workaround: Reboot the system after a hostapd configuration change. It's also possible to rmmod / modprobe mwifiex before restarting hostapd to apply the configuration change without a reboot.

ELB-5457FixedWi-Fi Firmware Is Not Automatically Added To OE ImageVerdin AM62Wi-FiLowNo

Description: IW416 Wi-Fi firmware is not part of the OE image unless explicitly added. Tdxref image is not affected.

Workaround: Manually add `linux-firmware-iw416` to the image composition.

ELB-5386FixedModules Using Micron eMMC Stuck During BootApalis iMX6, Apalis T30, Colibri iMX6, Colibri iMX7, Colibri iMX8X, Colibri T30, Verdin iMX8M MiniFlash, SDIO/SD/MMCLowNo

Description: In some specific condition modules using Micron MTFC4GACAJCN eMMC might get stuck during boot with the following error `mmc0: Card stuck in programming state! mmcblk0 card_busy_detect`.

Workaround: Apply patch `ed9009ad300c ("mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A")` to your kernel (https://lore.kernel.org/all/20231030224809.59245-1-beanhuo@iokpp.de/).

ELB-5383FixedPower-Off GPIO Not WorkingApalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7, Colibri iMX8X, Verdin AM62, Verdin iMX8M Mini, Verdin iMX8M PlusLowNo

Description: It's not possible to use the gpio-poweroff driver, as it's initialization fails with "gpio_poweroff_probe: pm_power_off function already registered" whenever the driver is configured on the device-tree.

ELB-5345FixedUSB Host Interface Not Working In U-Boot On Ixora 1.3Apalis iMX8Bootloader, USBLowNo

Description: USB Host interface is not working in U-Boot.

Workaround: apalis-imx8: execute `gpio set 132` before `usb start`

ELB-5151FixedUSBH Port Not Working In U-BootColibri iMX8XBootloaderLowNo

Description: Starting USB in U-Boot via `usb start` will lead to a crash and subsequent reboot: ``` Colibri iMX8X # usb start starting USB... Bus usb@5b0d0000: USB EHCI 1.00 Bus usbh3: XHCI-imx8 init hccr 0x000000005b130000 and hcor 0x000000005b130080 hc_length 128 Register 2000820 NbrPorts 2 Starting the controller USB XHCI 1.00 scanning bus usb@5b0d0000 for devices... 1 USB Device(s) found scanning bus usbh3 for devices... WARN halted endpoint, queueing URB anyway. Unexpected XHCI event TRB, skipping... (fd6c98b0 00000000 13000000 01008401) "Synchronous Abort" handler, esr 0x96000007 ... Code: 97ffff0d 52800401 aa1303e0 97ffff9f (b9400c00) Resetting CPU ... ```

Workaround: It is possible to manually bring internal USB hub to working condition via following commands: gpio set gpio@43_4 gpio clear gpio@43_5 usb start

6.4.0 (Release date: 2023-10-05)
Embedded Linux BSP Q3 2023 Quarterly Release
ELB-5375FixedEthernet (ETH_1) Bridge Mode Not WorkingVerdin iMX8M PlusEthernetLowNo

Description: Ethernet bridge mode on ETH_1 is not working. See also https://github.com/torvalds/linux/commit/a7602e7332b97cfbec7bacb0f1ade99a575fe104 and https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/Workaround-for-issue-Bridge-mode-on-EQoS-module-will-not-work/ta-p/1559302

ELB-5346FixedGetty Wrongly Spawned On Verdin UART4 (ttyS3)Verdin AM62LowNo

Description: A getty is wrongly spawned on Verdin UART4 (ttyS3)

ELB-5315FixedWrong Watchdog symlink in /dev/Colibri iMX7WatchdogLowNo

Description: /dev/colibri-watchdog-soc and /dev/colibri-watchdog-som symlinks are erroneously pointing to the SoM watchdog

Workaround: Patch /dev/udev/rules.d/99-toradex.rules -ACTION=="add|change", KERNEL=="watchdog", DRIVERS=="rn5t618-wdt", SYMLINK+="colibri-watchdog", SYMLINK+="colibri-watchdog-som" -ACTION=="add|change", SUBSYSTEM=="watchdog", KERNELS=="soc*", SYMLINK+="colibri-watchdog-soc" +ACTION=="add|change", SUBSYSTEM=="watchdog", DRIVERS=="rn5t618-wdt", SYMLINK+="colibri-watchdog", SYMLINK+="colibri-watchdog-som" +ACTION=="add|change", SUBSYSTEM=="watchdog", DRIVERS=="imx2-wdt", SYMLINK+="colibri-watchdog-soc"

ELB-5307FixedMemory Overlap/Clash On 512MB SKU (0071, 0072)Verdin AM62BootloaderLowNo

Description: On Verdin AM62 SKUs with 512MB memory (0071, 0072) there is a memory overlap between the relocated U-Boot and some DT reserved memory (that is used by other firmware components).

ELB-5304FixedGhosting Artifacts On Display Connected To DPI DPU InterfaceColibri iMX8XRGBLowNo

Description: Using the DPU DPI Display Interface, around 10% of the times the display is initialized (e.g. at every boot), ghosting artifact are present on the display.

ELB-5294FixedPotential DRAM DDR Memory Data Lost Above 85ºCVerdin iMX8M MiniBootloader, RAMLowNo

Description: As per NXP errata ERR050805 (https://www.nxp.com/docs/en/errata/IMX8MM_0N87W.pdf), DRAM Controller automatic de-rating logic may not work when the LPDDR4 memory temperature is above 85ºC at initialization. The DDR Controller will therefore not automatically adjust the memory refresh rate or de-rate memory timings based on the LPDDR4 memory temperature. This may cause the controller incorrectly setting the refresh period, potentially cause the LPDDR4 memory losing data contents and lead to possible data integrity issues above 85ºC.

ELB-5187FixedWi-Fi Firmware Crash With Concurrent AP/STA ModeVerdin iMX8M PlusWi-FiLowNo

Description: It's not possible to use Wi-Fi AP mode and client mode simultaneously.

Workaround: Update sdiouart8997_combo_v4.bin Wi-Fi firmware to the latest version from https://github.com/nxp-imx/imx-firmware/tree/lf-6.1.36_2.1.0/nxp/FwImage_8997_SD

ELB-5109FixedWi-Fi AP Allows Maximum One ClientApalis iMX8, Colibri iMX8XWi-FiLowNo

Description: A maximum of one client is supported when Wi-Fi is in AP mode.

ELB-4998FixedCTRL_SLEEP_MOCI# Low In U-Boot And Yavia I2C_1 EEPROM Not WorkingVerdin AM62, Verdin iMX8M Mini, Verdin iMX8M PlusBootloader, I2C, Power ManagementLowNo

Description: U-Boot is not properly driving the CTRL_SLEEP_MOCI# signal, because on that some carrier board peripheral might not be powered while in U-Boot. For this reason the Carrier Board EEPROM on I2C_1 bus is not working properly on the Yavia Carrier Board. This prevents the board to boot on Verdin AM62 + Yavia. On Verdin iMX8MM and iMX8MP the following errors are printed every boot: ``` wait_for_sr_state: Arbitration lost sr=93 cr=80 state=2020 i2c_init_transfer: failed for chip 0x57 retry=0 i2c_idle_bus: failed to clear bus, sda=0 scl=0 i2c_init_transfer: give up i2c_regs=0x30a50000 get_tdx_eeprom: cannot find EEPROM by node ```

Workaround: Verdin iMX8MP and iMX8MM boot fine despite this bug. If needed CTRL_SLEEP_MOCI# can be driven from U-Boot command line using the `gpio` command.

ELB-4988FixedUSB SDP/Fastboot Recovery Not WorkingVerdin iMX8M PlusBootloader, USBLowNo

Description: USB SDP/Fastboot recovery is not working in U-Boot.

6.3.0 (Release date: 2023-07-10)
Embedded Linux BSP Q2 2023 Quarterly Release.
ELB-5291FixedOE Build Error (Checksum Failure) Fetching `isp-imx-4.2.2.19.0.bin`Verdin iMX8M PlusBuildsystemLowNo

Description: OpenEmbedded build fails while fetching `isp-imx-4.2.2.19.0` with a checksum error. This is happening because the file was replaced by NXP without updating the filename. ``` WARNING: isp-imx-4.2.2.19.0-r0 do_fetch: Checksum failure encountered with download of https://www.nxp.com/lgfiles/NMG/MAD/YOCTO//isp-imx-4.2.2.19.0.bin;fsl-eula=true - will attempt other sources if available ERROR: isp-imx-4.2.2.19.0-r0 do_fetch: Fetcher failure for URL: 'https://www.nxp.com/lgfiles/NMG/MAD/YOCTO//isp-imx-4.2.2.19.0.bin;fsl-eula=true'. Checksum mismatch! ```

Workaround: Apply this patch https://github.com/Freescale/meta-freescale/commit/832250bdf2eb99d1727413b791b18f326d39446a

ELB-5213FixedGeneration of u-boot-nodtb.bin breaks if more than one UBOOT_CONFIG availableApalis iMX8, Colibri iMX8X, Verdin iMX8M Mini, Verdin iMX8M PlusBootloaderLowNo

Description: U-boot build fails when more than one configuration is listed in UBOOT_CONFIG variable.

ELB-5211FixedRAM Errors And Crashes At High TemperatureColibri iMX6Bootloader, RAMLowNo

Description: Because of a misconfiguration of RALAT/WALAT DDR parameters memory errors (e.g. bit-flips) and crashes are possible, this was experienced with Colibri iMX6 Solo IT starting from 60 Celsius Degrees temperature.

ELB-5168FixedBooting FIT Image With Ramdisk Is Broken (`CAAM error`)Verdin iMX8M PlusBootloaderLowNo

Description: Booting a FIT image that includes a RAM disk is not working. Boot fails with the following errors: `sha256Error: Address arguments are not aligned CAAM was not setup properly or it is faulty error!`, `sha256dev_get_priv: null device CAAM was not setup properly or it is faulty`.

ELB-5165FixedBooting FIT Image With Ramdisk Is Broken (`ramdisk overwritten`)Apalis iMX6, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7, Verdin iMX8M Mini, Verdin iMX8M PlusBootloader, BuildsystemLowNo

Description: Booting a FIT image that includes a RAM disk is not working. Boot fails with the following errors: `Error: ramdisk overwritten`, `Ramdisk image is corrupt or invalid`.

Workaround: Update `UBOOT_RD_LOADADDRESS` in OE machine conf file.

ELB-5139FixedUSB OTG Not Working In U-BootColibri iMX8XBootloader, USBLowNo

Description: USB OTG Is Not Working In U-Boot

ELB-5126FixedKernel Error: `imx8qxp-pinctrl scu:pinctrl: pin IMX8QXP_QSPI0A_DATA1 already requested` On IrisColibri iMX8XGPIO, Power ManagementLowNo

Description: Using Iris / Iris v2 carrier board device tree and during the initial boot the kernel print some errors: ``` imx8qxp-pinctrl scu:pinctrl: pin IMX8QXP_QSPI0A_DATA1 already requested by scu:pinctrl; cannot claim for gpio-keys imx8qxp-pinctrl scu:pinctrl: pin-157 (gpio-keys) status -22 imx8qxp-pinctrl scu:pinctrl: could not request pin 157 (IMX8QXP_QSPI0A_DATA1) from group gpiokeysgrp on device scu:pinctrl gpio-keys gpio-keys: Error applying setting, reverse things back ```

Workaround: No know issues because of that. The pin is configured correctly and the error is showing that there is a duplicated configuration. The affected pin is still correctly configured and it is fully working as expected (SoM wake up source).

ELB-5124FixedUnable To Play Full HD VideoColibri iMX8XKernel, Video CodecsLowNo

Description: Playing high resolution video (anything that is full-hd or beyond) is not working correctly because there is not enough CMA memory available.

Workaround: Increase CMA memory size in the device tree.

ELB-5050FixedSuspend/Resume Not WorkingVerdin iMX8M PlusKernel, Power ManagementLowNo

Description: Suspend/resume functionality is not working correctly, the kernel crashes during the resume.

ELB-5034FixedPCIe/Wi-Fi/BT Interface Is Not Working ReliablyApalis iMX8Bluetooth, PCIe, Wi-FiLowNo

Description: PCIe devices, including Wi-FI, are not always detected at boot, failure rate is about 5%.

ELB-5000FixedSATA Interface Is Not Working ReliablyApalis iMX8SATALowNo

Description: SATA device is not always detected at boot

ELB-4853FixedUSB Host Not Working On Aster Carrier BoardColibri iMX8XDevice Tree, USBLowNo

Description: USB Host doesn't work on Colibri i.MX8X with Aster device tree

Workaround: Use evaluation board device tree file

ELB-4203FixedFlickering Artifact On Display Connected To DPI ADMA LCDIF Interface When GPU Rendering Is UsedColibri iMX8XRGBLowNo

Description: When using the “fsl,imx6sx-lcdif” (ADMA LCDIF DPI Interface) driver and rendering graphics using the GPU some display artifacts can happen.

Workaround: Set `use-g2d=0` in /etc/xdg/weston/weston.ini or Use DPU ( "fsl,imx-lcdif-mux-display" driver, display_lcdif) as a display controller.

6.2.0 (Release date: 2023-03-31)
Embedded Linux BSP Q1 2023 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-6-2-0-quarterly
ELB-5037FixedU-Boot Build Might Produce A Non Working BinaryVerdin iMX8M PlusBootloaderLowNo

Description: U-Boot custom built may not work if size of SPL binary (u-boot-spl.bin) is bigger that 111236 bytes. In that case the SPL stack could override the DDR firmware leading to a failure during memory training and a boot failure.

Workaround: Use Toradex provided binaries, reduce generate binary size removing functionality (e.g. set CONFIG_FSL_CAAM=n) or use the kirkstone Toradex OE generated toolchain that is known to create working binaries.

ELB-5019FixedUnable To Boot Kernel With External InitrdApalis iMX8BootloaderLowNo

Description: Booting a kernel with an external initrd fails in U-Boot. ``` ERROR: Failed to allocate 0x4d000 bytes below 0x100000000. device tree - allocation error FDT creation failed! resetting ... ```

Workaround: Remove `initrd_high` variable from U-Boot environment, `setenv initrd_high` or set `CONFIG_LMB_MAX_REGIONS=16` in U-Boot configuration

ELB-4989FixedNAND Bad Block Table Is Corrupted At Every BootColibri iMX7, Colibri T20, Colibri VF50, Colibri VF61Flash, KernelLowNo

Description: The NAND bad block table is getting corrupted at every boot because of a configuration mismatch between U-Boot (using OOB data for bad blocks) and Linux (using an in-band table at the end in the last 2 NAND blocks). This could potentially cause data loss in case a bad block is reused and the error is not recoverable with ECC.

Workaround: Set `CONFIG_SYS_NAND_USE_FLASH_BBT=y` in U-Boot configuration.

ELB-4980FixedWrong Playtime On Analog Audio OutputApalis iMX8Analog AudioLowNo

Description: Playtime on analog audio is faster (2x), this happen around 15% of the time after a reboot.

Workaround: Set `assigned-clock-rates = <786432000>, <49152000>, <12288000>;` in DTS `spdif0` node.

ELB-4970FixedUSB Not Working in U-BootApalis iMX8Bootloader, USBLowNo

Description: Neither USB device nor host functionality is working in U-Boot.

Workaround: Stay on the U-Boot as shipped with the latest stable BSP 5.7.0

ELB-4950FixedRTC Wakealarm Not TriggeringApalis iMX8Kernel, SCFWLowNo

Description: The wakealarm feature of RTC1 does not work when using the `sysfs` interface. Thus one can do a timebased wakeup from suspend from any source provided by the SoM.

Workaround: Use `rtcwake` tool.

ELB-4899FixedResume From Suspend Not WorkingVerdin iMX8M MiniKernel, Power ManagementLowNo

Description: It's not possible to reliable use suspend/resume functionality

Workaround: Turn off ethernet before suspending. "ip link set dev eth0 down"

ELB-4870FixedNot Reliable Bluetooth InitializationVerdin iMX8M PlusBluetoothLowNo

Description: Bluetooth interface might not be properly initialized at boot, the following errors might happen: `Bluetooth: hci0: command 0x1003 tx timeout`, `Failed to start discovery: org.bluez.Error.NotReady`

ELB-4856FixedISP i.MX 8M Plus Service Load FailsVerdin iMX8M PlusBuildsystem, CSILowNo

Description: Loading imx8-isp.service will fail when no camera/ISP is present on the device tree.

Workaround: The failure is normally happening when the ISP service is not required, therefore the error can be safely ignored when ISP is not used.

ELB-4831FixedBoot Time And Performance RegressionApalis iMX6, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7Buildsystem, KernelNo

Description: There is a performance and boot time regression on initial BSP 6 releases compared to BSP 5, e.g. boot time on Apalis iMX6 increased from ~18seconds to ~30seconds, the reason is that some unwanted debug kernel configuration was enabled.

Workaround: Set `CONFIG_DEBUG_WW_MUTEX_SLOWPATH=n` or `CONFIG_PROVE_LOCKING=n` in the Linux kernel configuration

ELB-4728FixedMissing Video Modes On HDMI InterfaceVerdin iMX8M Mini, Verdin iMX8M PlusDSI, Graphics, HDMILowNo

Description: Some monitor might not work (no display signal) or use a mode different from the preferred one using the HDMI interface, this is because video modes are filtered out if the monitor expected pixel clock is "too" far from the clock that the SOC is able to produce.

ELB-4489FixedNAU8822 Audio: Bridge-Tied Load Configuration Not AvailableVerdin iMX8M Mini, Verdin iMX8M PlusAnalog AudioLowNo

Description: The NAU8822 audio codec available on the Verdin development board cannot be configured in bridge-tied load

ELB-4203FixedFlickering Artifact On Display Connected To DPI ADMA LCDIF Interface When GPU Rendering Is UsedColibri iMX8XRGBLowNo

Description: When using the “fsl,imx6sx-lcdif” (ADMA LCDIF DPI Interface) driver and rendering graphics using the GPU some display artifacts can happen.

Workaround: Set `use-g2d=0` in /etc/xdg/weston/weston.ini or Use DPU ( "fsl,imx-lcdif-mux-display" driver, display_lcdif) as a display controller.

6.1.0 (Release date: 2022-12-31)
Embedded Linux BSP Q4 2022 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-6-1-0-quarterly
ELB-5110FixedWake-Up From Suspend Fails If Ethernet Interface Is DownColibri iMX6ULLEthernet, Power ManagementLowNo

Description: Colibri iMX6ULL doesn't wake up from suspend if the ethernet interface is disabled when the system is put to sleep. With the ethernet interface enabled, suspend / resume works.

Workaround: Don't disable the ethernet interface if you need to sleep/resume. Otherwise, use BSP 6.1 or later, this issue is already fixed there.

ELB-4947FixedBroken HMP DTB OverlayVerdin iMX8M MiniM4LowNo

Description: HMP Overlay on Verdin iMX8M Mini (RemoteProc and RPMsg) is not working.

ELB-4937FixedU-Boot bootaux Command Not AvailableVerdin iMX8M MiniBootloader, M4LowNo

Description: The bootaux command is not enabled on the Verdin iMX8MM u-boot default configuration.

Workaround: If the bootaux command is needed, build a custom u-boot with CONFIG_IMX_BOOTAUX set.

ELB-4887FixedPREEMPT_RT Not Working On Downstream DistroVerdin iMX8M Mini, Verdin iMX8M PlusKernelLowNo

Description: PREEMPT_RT was not enabled by default on RT Downstream images

Workaround: PREEMPT_RT config depends indirectly on !KVM, so make sure that KVM is not set

ELB-4884FixedGraphics Demo Crashes When Display Is not ConnectedVerdin iMX8M Mini, Verdin iMX8M PlusGraphicsLowNo

Description: When no display is connected the graphical demo application is crashing

ELB-4858FixedOE Packages Always Built With Thumb Instruction SetApalis iMX6, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7BuildsystemLowNo

Description: The instruction set used to compile userspace components is currently forced to be Thumb2 even for recipes which explicitly ask to be compiled for the ARM instruction set (the default for the armv7a machines was and stays Thumb2).

Workaround: No known issues because of this error

ELB-4852FixedBluetooth Does Not Work Out-of-the-box and Issues With OE OverridesVerdin iMX8M PlusBluetooth, BuildsystemLowNo

Description: Some OE overrides in our layers are using a no longer supported syntax, because of that Bluetooth does not work out-of-the-box on Verdin iMX8M Plus >= V1.1A.

Workaround: Manually execute hciattach: ``` /usr/bin/hciattach /dev/ttymxc3 any 115200 flow /usr/sbin/rfkill unblock bluetooth /usr/bin/hciconfig hci0 up # Change BT UART baudrate to a higher speed, for example 921600 /usr/bin/hcitool -i hci0 cmd 0x3F 0x09 0x00 0x10 0x0e 0x00 /bin/stty -F /dev/ttymxc3 921600 ```

ELB-4832FixedCrashes Because of Limited Memory and Out-Of-Memory KillerApalis iMX6, Colibri iMX6KernelLowNo

Description: Low end modules with little memory (<= 512MB) may crash because of OOM killer

Workaround: Tune the image composition and kernel configuration to lower memory usage

ELB-4829FixedAnalog Output is Not The Default Audio InterfaceApalis iMX6Analog Audio, BuildsystemLowNo

Description: The default audio interface is not the analogue one

Workaround: Explicitly specify the required audio interface

ELB-4825Fixed60 Seconds Driver Loading Delay for Driver With Missing FirmwareApalis iMX6, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7Capacitive Touch, KernelLowNo

Description: In case a driver requests a firmware (even if it is optional) and this firmware is not present in the fs, the driver loading time will be delayed for 60 seconds, Atmel MXT capacitive touchscreen is affected by this bug

Workaround: Disable legacy `CONFIG_FW_LOADER_USER_HELPER` in kernel configuration

ELB-4824FixedBluealsa Not StartingColibri iMX6ULLBluetoothLowNo

Description: Bluealsa is not starting/working

ELB-4822FixedUSB Over Current Polarity Property Not DefinedApalis iMX6, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7, Verdin iMX8M MiniKernel, USBLowNo

Description: USB over current polarity is currently not defined in the device tree file, leading to the following error: `imx_usb 2184000.usb: No over current polarity defined`

Workaround: This error message can be safely ignored

ELB-4815FixedWi-Fi Regulatory DB Is Not Automatically LoadedColibri iMX6ULLWi-FiLowNo

Description: The Wi-Fi regulatory DB is not automatically loaded, because of that a limited number of Wi-Fi channels is available and the sample Wi-Fi AP configuration is not working out of the box.

Workaround: Manually reload the regulatory db: `iw reg reload` and `iw reg set `. Verify with `iw reg get`

ELB-4814FixedKernel Error: `rtc rtc0: Timeout trying to get valid LPSRT Counter read`Colibri iMX6ULLKernel, RTCLowNo

Description: The kernel might prints the following error message: `rtc rtc0: Timeout trying to get valid LPSRT Counter read`

ELB-4799FixedWi-Fi Connection not StableVerdin iMX8M MiniWi-FiLowNo

Description: Wi-Fi connection is not stable, it stops working after less than a minute of stress testing.

ELB-4792FixedSystemd BPF/cgroup Firewalling ErrorVerdin iMX8M Mini, Verdin iMX8M PlusBuildsystemLowNo

Description: Kernel does not includes `BPF/cgroup` as required by systemd (`unit configures an IP firewall, but the local system does not support BPF/cgroup firewalling.`)

ELB-4791FixedKernel Error: CAAM `job ring 0` Warnings During BootVerdin iMX8M Mini, Verdin iMX8M PlusKernel, Miscellaneous PeripheralsLowNo

Description: CAAM driver has some failure warning during boot (`caam_jr 30901000.jr: failed to flush job ring 0`, `caam_jr: probe of 30901000.jr failed with error -5`). JR0 is reserved for secure world usage and Linux kernel cannot use it.

Workaround: The error message is just cosmetic, no known issues.

ELB-4790FixedKernel Error: `of_reserved_mem_lookup() returned NULL` During BootVerdin iMX8M MiniKernelLowNo

Description: At boot the kernel prints the following error message: `of_reserved_mem_lookup() returned NULL`

Workaround: No issues because of this, the error log can just be ignored

ELB-4731FixedDSI-to-HDMI Adapter Hotplug Detect (HPD) Not WorkingVerdin iMX8M Mini, Verdin iMX8M PlusDSI, HDMILowNo

Description: DSI-to-HDMI does not implement hot plug detect on event, a 10 seconds polling is used instead. Because of that timing could be incorrect when a different monitor is plugged in.

ELB-4699FixedVideo Playback Not WorkingVerdin iMX8M Mini, Verdin iMX8M PlusMultimedia, Video CodecsLowNo

Description: VPU and video playback do not work.

ELB-4695FixedUSB OTG Host/Client Switching Not WorkingVerdin iMX8M PlusUSBLowNo

Description: USB Port works only in host mode.

ELB-4648FixedWrong Volume on Dahlia after suspend/resume cycleVerdin iMX8M MiniAnalog AudioLowNo

Description: On the Dahlia carrier board the Headphone volume is set to a default value after resume from standby or if nothing is played for more than 5 seconds.

Workaround: Restore the volume to the desired level after resume.

ELB-4610FixedUSBH Port not Working (Reset Loop)Colibri iMX6ULLUSBLowNo

Description: USB host port is not working, it resets every 2 seconds (`usb 1-1: reset high-speed USB device number 2 using ci_hdrc`)

ELB-4609FixedUSB OTG Device/Host Role Switch not WorkingColibri iMX6ULLUSBLowNo

Description: USB OTG device/host role switching is not working

ELB-4579FixedAudio Signal Distortion on Dahlia Carrier BoardVerdin iMX8M Mini, Verdin iMX8M PlusAnalog AudioLowNo

Description: Playing audio on a Dahlia Carrier Board using a Verdin iMX8MM causes distortion on the audio output.

Workaround: Use 48kHz sample rate or set `simple-audio-card,mclk-fs = <256>;` in sound_card dts node.

ELB-4481FixedWrong Playback Sample Rate on Analog AudioVerdin iMX8M Mini, Verdin iMX8M PlusAnalog AudioLowNo

Description: Audio is played with the wrong sample rate (44100 vs 48000 Hz) on Verdin Development Board, a 6.5 seconds audio file plays in about 6 seconds (8% faster)

Workaround: Use 48kHz sample rate or set `simple-audio-card,mclk-fs = <256>;` in sound_card dts node.

6.0.0 (Release date: 2022-10-01)
Embedded Linux BSP Q3 2022 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-6-0-0-quarterly
ELB-5017FixedRare data corruption might occur on a dirty cache lineColibri iMX6Bootloader, RAMLowNo

Description: Under very rare timing circumstances, a data corruption might occur on a dirty cache line that is evicted from the L1 Data Cache due to another cache line being fully written, see ARM Cortex-A9 Errata 845369 for details. This could happen because `CONFIG_ARM_ERRATA_845369` is not enabled in U-Boot configuration. Enabling this errata has some effect on memory benchmark results, but it is not expected to have a significant impact on real applications.

Workaround: Enable `CONFIG_ARM_ERRATA_845369` in U-Boot configuration.

ELB-4892FixedU-Boot mmc info Command Truncates eMMC NameApalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7, Colibri iMX8X, Verdin iMX8M Mini, Verdin iMX8M PlusSDIO/SD/MMCLowNo

Description: The U-Boot mmc info command may truncate the eMMC name by one character at the end.

Workaround: Use BSP6 or backport patch from upstream U-Boot where this got already fixed. https://source.denx.de/u-boot/u-boot/-/commit/84191f73847c351019bb50728d28220d91b0aee4

ELB-4739FixedBoot Failure Because of Uncompressed Kernel Overriding RamdiskApalis iMX6, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7BootloaderLowNo

Description: When using a large kernel, more than 32MB, and using a ramdisk (e.g. initrd) image, the ramdisk image would get overwritten by the uncompressed kernel.

ELB-4730FixedSLEEP_MOCI# Signal not ConfiguredVerdin iMX8M PlusPower ManagementLowNo

Description: The SLEEP_MOCI# is not properly configured on the Verdin iMX8M Plus, because of that any carrier board relying on this signal could have malfunctions. CAN/PCIe and USB are not working correctly on Dahlia because of that.

ELB-4308FixedPotential Freeze on SuspendApalis iMX6, Colibri iMX6, Colibri iMX6ULLPower ManagementLowNo

Description: Sometime (around 20% of the time) it is not possible to resume from suspend.

ELB-4268FixedUSB Host Port Only Working if Plugged During BootVerdin iMX8M MiniUSBLowNo

Description: Hot-plugging USB devices on the USB host port USB_2 does not work on a custom carrier board without a USB hub in-between. Note that current Toradex carrier boards (Dahlia and the Verdin Development Board) do have such a USB hub and therefore do NOT exhibit this issue as the USB hub itself is handling the hot-plugging. This issue is related to USB runtime power-management.

Workaround: Add `power-domains = <&usb_otg2_pd>;` property to `&usbphynop2` node in the device tree.

5.7.5
Embedded Linux BSP 5.7.5 Maintenance Release
ELB-5484Known IssueAP Does Not Work Anymore After `hostapd` RestartApalis iMX8, Colibri iMX6ULL, Colibri iMX8X, Verdin AM62, Verdin iMX8M Mini, Verdin iMX8M PlusWi-FiLowNo

Description: Restarting hostapd makes it impossible for clients to connect to the AP.

Workaround: Reboot the system after a hostapd configuration change. It's also possible to rmmod / modprobe mwifiex before restarting hostapd to apply the configuration change without a reboot.

5.7.4 (Release date: 2023-12-20)
Embedded Linux BSP 5.7.4 Maintenance Release
ELB-5386FixedModules Using Micron eMMC Stuck During BootApalis iMX6, Apalis T30, Colibri iMX6, Colibri iMX7, Colibri iMX8X, Colibri T30, Verdin iMX8M MiniFlash, SDIO/SD/MMCLowNo

Description: In some specific condition modules using Micron MTFC4GACAJCN eMMC might get stuck during boot with the following error `mmc0: Card stuck in programming state! mmcblk0 card_busy_detect`.

Workaround: Apply patch `ed9009ad300c ("mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A")` to your kernel (https://lore.kernel.org/all/20231030224809.59245-1-beanhuo@iokpp.de/).

ELB-5345FixedUSB Host Interface Not Working In U-Boot On Ixora 1.3Apalis iMX8Bootloader, USBLowNo

Description: USB Host interface is not working in U-Boot.

Workaround: apalis-imx8: execute `gpio set 132` before `usb start`

ELB-5304FixedGhosting Artifacts On Display Connected To DPI DPU InterfaceColibri iMX8XRGBLowNo

Description: Using the DPU DPI Display Interface, around 10% of the times the display is initialized (e.g. at every boot), ghosting artifact are present on the display.

ELB-5294FixedPotential DRAM DDR Memory Data Lost Above 85ºCVerdin iMX8M MiniBootloader, RAMLowNo

Description: As per NXP errata ERR050805 (https://www.nxp.com/docs/en/errata/IMX8MM_0N87W.pdf), DRAM Controller automatic de-rating logic may not work when the LPDDR4 memory temperature is above 85ºC at initialization. The DDR Controller will therefore not automatically adjust the memory refresh rate or de-rate memory timings based on the LPDDR4 memory temperature. This may cause the controller incorrectly setting the refresh period, potentially cause the LPDDR4 memory losing data contents and lead to possible data integrity issues above 85ºC.

ELB-5211FixedRAM Errors And Crashes At High TemperatureColibri iMX6Bootloader, RAMLowNo

Description: Because of a misconfiguration of RALAT/WALAT DDR parameters memory errors (e.g. bit-flips) and crashes are possible, this was experienced with Colibri iMX6 Solo IT starting from 60 Celsius Degrees temperature.

ELB-4853FixedUSB Host Not Working On Aster Carrier BoardColibri iMX8XDevice Tree, USBLowNo

Description: USB Host doesn't work on Colibri i.MX8X with Aster device tree

Workaround: Use evaluation board device tree file

ELB-4203FixedFlickering Artifact On Display Connected To DPI ADMA LCDIF Interface When GPU Rendering Is UsedColibri iMX8XRGBLowNo

Description: When using the “fsl,imx6sx-lcdif” (ADMA LCDIF DPI Interface) driver and rendering graphics using the GPU some display artifacts can happen.

Workaround: Set `use-g2d=0` in /etc/xdg/weston/weston.ini or Use DPU ( "fsl,imx-lcdif-mux-display" driver, display_lcdif) as a display controller.

5.7.2
Upcoming Embedded Linux BSP 5.7 First Maintenance Release
ELB-5017Known IssueRare data corruption might occur on a dirty cache lineColibri iMX6Bootloader, RAMLowNo

Description: Under very rare timing circumstances, a data corruption might occur on a dirty cache line that is evicted from the L1 Data Cache due to another cache line being fully written, see ARM Cortex-A9 Errata 845369 for details. This could happen because `CONFIG_ARM_ERRATA_845369` is not enabled in U-Boot configuration. Enabling this errata has some effect on memory benchmark results, but it is not expected to have a significant impact on real applications.

Workaround: Enable `CONFIG_ARM_ERRATA_845369` in U-Boot configuration.

ELB-4989Known IssueNAND Bad Block Table Is Corrupted At Every BootColibri iMX7, Colibri T20, Colibri VF50, Colibri VF61Flash, KernelLowNo

Description: The NAND bad block table is getting corrupted at every boot because of a configuration mismatch between U-Boot (using OOB data for bad blocks) and Linux (using an in-band table at the end in the last 2 NAND blocks). This could potentially cause data loss in case a bad block is reused and the error is not recoverable with ECC.

Workaround: Set `CONFIG_SYS_NAND_USE_FLASH_BBT=y` in U-Boot configuration.

ELB-4730Known IssueSLEEP_MOCI# Signal not ConfiguredVerdin iMX8M PlusPower ManagementLowNo

Description: The SLEEP_MOCI# is not properly configured on the Verdin iMX8M Plus, because of that any carrier board relying on this signal could have malfunctions. CAN/PCIe and USB are not working correctly on Dahlia because of that.

ELB-4648Known IssueWrong Volume on Dahlia after suspend/resume cycleVerdin iMX8M MiniAnalog AudioLowNo

Description: On the Dahlia carrier board the Headphone volume is set to a default value after resume from standby or if nothing is played for more than 5 seconds.

Workaround: Restore the volume to the desired level after resume.

ELB-4579Known IssueAudio Signal Distortion on Dahlia Carrier BoardVerdin iMX8M Mini, Verdin iMX8M PlusAnalog AudioLowNo

Description: Playing audio on a Dahlia Carrier Board using a Verdin iMX8MM causes distortion on the audio output.

Workaround: Use 48kHz sample rate or set `simple-audio-card,mclk-fs = <256>;` in sound_card dts node.

ELB-4481Known IssueWrong Playback Sample Rate on Analog AudioVerdin iMX8M Mini, Verdin iMX8M PlusAnalog AudioLowNo

Description: Audio is played with the wrong sample rate (44100 vs 48000 Hz) on Verdin Development Board, a 6.5 seconds audio file plays in about 6 seconds (8% faster)

Workaround: Use 48kHz sample rate or set `simple-audio-card,mclk-fs = <256>;` in sound_card dts node.

ELB-4268Known IssueUSB Host Port Only Working if Plugged During BootVerdin iMX8M MiniUSBLowNo

Description: Hot-plugging USB devices on the USB host port USB_2 does not work on a custom carrier board without a USB hub in-between. Note that current Toradex carrier boards (Dahlia and the Verdin Development Board) do have such a USB hub and therefore do NOT exhibit this issue as the USB hub itself is handling the hot-plugging. This issue is related to USB runtime power-management.

Workaround: Add `power-domains = <&usb_otg2_pd>;` property to `&usbphynop2` node in the device tree.

5.7.0 (Release date: 2022-07-27)
Embedded Linux BSP Q2 2022 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-7-0-quarterly
ELB-4525FixedGPIO1_15 (SODIMM 178) Doesn't work on IMX7DColibri iMX7GPIO, KernelLowNo

Description: It is not possible to drive the GPIO on pin SODIMM-178 of the Colibri IMX7 using the downstream BSP image.

Workaround: Use the upstream image.

ELB-4483FixedBuilt-in LEDs of Ixora v1.2 don't work on Apalis iMX8Apalis iMX8GPIO, Miscellaneous PeripheralsLowNo

Description: It is not possible to control the built-int Ixora V1.2 LEDs using the Apalis IMX8.

ELB-4447FixedSound Card Name Difference Prevents Proper Initial ALSA Configuration/StateColibri iMX7Analog AudioLowNo

Description: The sound card name may be different preventing the regular ALSA configuration/state from being properly applied. Therefore, the initial ALSA mixer configuration may not be very user-friendly.

Workaround: Manually adjust the ALSA configuration to your liking. It should automatically get preserved over subsequent re-boots.

ELB-4435FixedVerdin Systemd boot-messages are not printed outVerdin iMX8M Mini, Verdin iMX8M PlusBootloaderLowNo

Description: Print systemd boot messages to the uart, the default console output

ELB-4430FixedAudio playback time on SGTL5000 does not match the input file durationApalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7, Colibri iMX8XAnalog AudioLowNo

Description: Sometimes audio playback time on SGTL5000 does not match the input file duration.

ELB-4429FixedMDIO read timeoutApalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7, Colibri iMX8X, Verdin iMX8M Mini, Verdin iMX8M PlusEthernetLowNo

Description: MDIO read timeout is randomly popping up during link-up and causing ethernet to stop working

Workaround: Setting the interface down and up again fixes the problem

ELB-4414FixedNoise coming from headphone output after soft rebootApalis iMX6, Colibri iMX6Analog AudioLowNo

Description: The analog audio output can present random noise after a soft reboot. The noise goes away as soon as the codec is reinitialized. The noise will only be present if before the reboot the audio interface was used.

5.6.0 (Release date: 2022-03-31)
Embedded Linux BSP Q1 2022 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-6-0-quarterly
ELB-4354FixedEthernet not working - MDIO read timeoutApalis iMX8EthernetLowNo

Description: MDIO read timeout can prevent proper ethernet initialization at boot

Workaround: Bring the interface down and up again

ELB-4299FixedWrong PCIe PERST# Startup SequenceVerdin iMX8M MiniPCIeLowNo

Description: The PCIe initialization on the Verdin IMX8MM doesn't respect the required PCIe PERST# start-up sequence, PERST# is de-asserted too early.

ELB-3522FixedSpi CAN Controller is receiving wrong data when frames of different length are sentVerdin iMX8M MiniCANLowNo

Description: Spi CAN Controller is receiving wrong data when frames of different length are sent

ELB-2735FixedCAN Controller Drops FramesVerdin iMX8M MiniCANLowNo

Description: If the Verdin iMX8MM receives at 1Mbits/s with around 100% bus load CAN frames with a 1 byte payload, around 15..20% of frames are lost.

Workaround: Set `spi-max-frequency = <8500000>;` in the device tree in `can1: can@0` node or update to version 5.6.0 or later. After that packet loss at 1Mbit/s with 100% bus load and 1 byte DLC payload is about 4%.

5.5.0 (Release date: 2022-01-03)
Embedded Linux BSP Q4 2021 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-5-0-quarterly
ELB-4255FixedCrash on Boot Without Lontium DSI to HDMI Display AdapterVerdin iMX8M MiniDSILowNo

Description: The Verdin iMX8M Mini may crash during boot with the default configuration if the DSI to HDMI display adapter is NOT plugged in.

Workaround: Remove DSI to HDMI adapter overlay in case you do not have the adapter present (see also `skip_fdt_overlays`)

ELB-4251FixedEthernet Does Not Work After SuspendApalis iMX8Ethernet, Power ManagementLowNo

Description: Ethernet is not working properly after suspend->resume

ELB-4224FixedPCIe Not WorkingVerdin iMX8M MiniPCIeLowNo

Description: Bring-up of PCIe fails with a PCIe PLL lock timeout at boot.

Workaround: Use BSP 5.2.0.

ELB-4192FixedLVDS_0_BKL1_ON and PWM_BKL1 not Handled in LVDS Mezzanine OverlayApalis iMX8LVDSLowNo

Description: Booting with `fdt_overlays=apalis-imx8_mezzanine_lvds_overlay.dtbo display-lt170410_overlay.dtbo` the backlight of the 10" LVDS display is off.

Workaround: # echo 0 > /sys/devices/platform/gpio-fan/hwmon/hwmon0/pwm1
# gpioset gpiochip1 22=1

ELB-4176FixedSlow NAND on U-BootColibri iMX6ULLFlashLowNo

Description: In U-Boot the NAND storage is much slower compared to Linux (1MiB/s vs 30MiB/s)

ELB-4112FixedApalis iMX8 Ixora V1.2 Device Tree Crashes SometimesApalis iMX8KernelLowNo

Description: Sometimes after multiple reboots an Apalis iMX8 crashes when using the Ixora V1.2 device tree.

Workaround: Use eval-board device tree

ELB-3419FixedVerdin iMX8MM Suspend/Resume UnreliableVerdin iMX8M MiniPower ManagementLowNo

Description: Suspend/Resume sometimes freezes when going to suspend. This happens about every 5 to 10 times when going to suspend.

Workaround: None

ELB-2833FixedReboot May Hang for 90 Seconds Without any Further Console OutputVerdin iMX8M MiniPower ManagementLowNo

Description: Reboot may hang for 90 Seconds without any further console output.

Workaround: Be patient!

5.4.0 (Release date: 2021-09-30)
Embedded Linux BSP Q3 2021 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-4-0-quarterly
ELB-4170FixedSporadic boot failure at high temperature on Apalis iMX6Q ITApalis iMX6Bootloader, RAMLowNo

Description: The 0028 Apalis iMX6 Quad 2GB IT SoM may sporadically fail to boot in case the ambient temperature exceeds 70 degrees Celsius. The issue is likely caused by sub-optimum RAM timings. The issue is going to be resolved by a future software update (delivering updated RAM timings).

Workaround: Updating to BSP 5.4.0 or any newer release fixes the issue.

ELB-4080FixedParallel RGB Not Defaulting to VESA VGA Resolution/TimingColibri iMX6ULLRGBLowNo

Description: The downstream BSP does not default parallel RGB to the VESA VGA resolution/timing. This may lead to such monitors not being able to display anything.

Workaround: Use upstream BSP.

ELB-4076FixedInteractive U-Boot cfgblock create Command Creates NAND Rather Than eMMC ConfigBlockColibri iMX7Bootloader, ConfigBlockLowNo

Description: The interactive U-Boot cfgblock create command wrongly always creates a ConfigBlock for the NAND rather than the eMMC version of the module.

ELB-4043FixedLatest CMA Configuration MAX(256MB, 25% of MEM) Not Working on 8GB SKU 0066Verdin iMX8M PlusKernelLowNo

Description: Unfortunately, CMA needs to be in low memory and to be consecutive is not allowed to cross any other reserved sections. This severely limits its maximum available size and it looks like there is no consecutive 2GB block available that would meet all these conditions.

Workaround: Luckily, one may simply override the amount of CMA via Linux kernel command line parameter. E.g. for the BSP:
setenv setup 'setenv setupargs console=${console},${baudrate} console=tty1 consoleblank=0 earlycon cma=1376MB'
saveenv; boot
Or in the Toradex Easy Installer case:
setenv teziargs cma=1376MB; saveenv; boot

ELB-4014FixedMDIO Write Timeout error on system resumingColibri iMX7EthernetLowNo

Description: The following messages are shown upon resume:
[ 1912.202108] fec 30be0000.ethernet eth0: MDIO write timeout
[ 1912.202119] Micrel KSZ8041 30be0000.ethernet-1:00: failed to set led mode

Workaround: Cosmetic problem. Nothing needs to be done.

ELB-3481FixedU-Boot Should Use the Same Ethernet Address as the KernelColibri iMX6ULLEthernetLowNo

Description: The assigned MAC address is not the same in U-Boot and Linux kernel.

ELB-3431FixedSATA InstabilityApalis iMX8Kernel, SATALowNo

Description: SATA is not working stable.

Workaround: None

ELB-1419FixedParallel RGB Video Playback IssueColibri iMX8XRGB, VGA, Video CodecsLowNo

Description: Parallel RGB which is also what drives the RAM DAC towards the DVI-A or VGA ports on the Colibri Evaluation Board or Iris is using mxsfb-drm which currently fails g2d with the following error:
dpuv1/dpu_lib.c:197 open file error.
g2d_open: Init Dpu Handle fail !
It's currently unknown how one could play hardware accelerated videos without using g2d.

Workaround: Using LVDS or MIPI DSI as available via FFC connector on the back side of the module (e.g. also with the Colibri iMX8X DSI to HDMI Adapter) is using imx-drm which works fine.

ELB-1408FixedKernel panic on resuming by gpio wakeup after freeze/suspend systemApalis iMX8X, Colibri iMX8X, Apalis iMX8GPIO, Power ManagementLowNo

Description: When trying to resume an apalis-imx8 with WAKE1_MICO# signal it does not wake up and the module freezes. It seems to crash on resume.

5.3.0 (Release date: 2021-07-08)
Embedded Linux BSP Q2 2021 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-3-0-quarterly
ELB-3965FixedBluetooth Connection not workingApalis iMX8, Apalis iMX8X, Colibri iMX8X, Verdin iMX8M Mini, Verdin iMX8M PlusBluetoothLowNo

Description: Bluetooth pairing works but connection is not working

Workaround: CONFIG_BT_RFCOMM=m CONFIG_BT_RFCOMM_TTY=y

ELB-3963FixedPHY Reset Timing ViolationColibri iMX7EthernetLowNo

Description: We may violate the on-module PHY reset timing and attempt communication with the PHY after resume while the PHY is still held in reset.

Workaround: In device tree delay the voltage regulator coupled to the fec/phy

ELB-3939FixedParallel RGB on VGA Pixelclock Polarity Setting WrongColibri iMX8XRGBLowNo

Description: On the Parallel RGB output the pixelclock polarity setting is wrong for the VGA resolution.

Workaround: Manually Compile, Deploy and use latest Device Tree Overlays.

ELB-3879FixedSoftware Reboot May Stall 1.5 Minutes Stopping Weston Wayland CompositorColibri iMX7GraphicsLowNo

Description: Software reboot may stall 1.5 minutes stopping Weston Wayland compositor.
Stopping Weston Wayland Compositor...
[* ] (1 of 2) A stop job is running for …ayland Compositor (13s / 1min 31s)
This does not always happen. Not sure whether it depends on how long the session was already active.

Workaround: Just be patient (;-p).

ELB-3852FixedThe system doesn't power down if the critical temperature reaches but the /sbin/poweroff tool fails for any reasonApalis iMX8X, Colibri iMX8XPower Management, Temperature Sensor, WatchdogLowNo

Description: If the critical temperature reaches in case the system tool `/sbin/poweroff` is unavailable or not working, the kernel never powers down the system.

5.2.0 (Release date: 2021-04-08)
Embedded Linux BSP Q1 2021 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-2-0-quarterly
ELB-3893FixedU-Boot stores high assembly-versions incorrectlyApalis iMX6BootloaderLowNo

Description: cfgblock create <16-digit-serial> modifies the 7th digit to be always 0. This creates a wrong version information for modules with an assembly version 'K' or higher (e.g. Apalis iMX6 V1.1K)

Workaround: Start 'cfgblock create' without parameters to enter the data in the interactive mode.

ELB-3756FixedUse VGA as default on Colibri modulesColibri iMX6, Colibri iMX6ULL, Colibri iMX7, Colibri iMX8XVGALowNo

Description: Change the default back to Vesa VGA timings for Colibri modules

ELB-3740Fixede-con Systems Camera not Working on BSP 5.1.0 QuarterlyApalis iMX8CSILowNo

Description: As version X1 of the camera adapter board uses different GPIOs as compared to the initial E1 version, the apalis-imx8_ar0521_overlay for the e-con Systems e-CAM55_CUMI0521_MOD camera does not work on BSP 5.1.0 Quarterly.

Workaround: You may find the following patch fixing the pin muxing for the Rev. X1 camera adapters:
https://git.toradex.com/cgit/device-tree-overlays.git/commit/?h=toradex_5.4-2.3.x-imx&id=08808b502c224e6143ae19518cf4f844ca2ee03c

ELB-3579FixedA Kernel Compiled for Thumb With GCC 10 Doesn't BootApalis iMX6, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7KernelLowNo

Description: A kernel configured with THUMB2_KERNEL compiled with GCC 10 doesn't boot.

Workaround: Compile without THUMB2

ELB-3532FixedWeston crashes during system rebootColibri iMX6ULLGraphics, MultimediaLowNo

Description: The following crash can be observed during system reboot:To reproduce please type, reboot command and check for trace from weston ........ [ 54.358713] weston: unhandled page fault (11) at 0x636f6c33, code 0x005 [ 54.365339] pgd = d33edf7e [ 54.368125] [636f6c33] *pgd=00000000 [ 54.371718] CPU: 0 PID: 495 Comm: weston Not tainted 5.4.91-5.1.0-devel+git.6ad99da2c675 #1 [ 54.380101] Hardware name: Freescale i.MX6 Ultralite (Device Tree) [ 54.386291] PC is at 0x76d5cc88 [ 54.389459] LR is at 0x76d5cc79 [ 54.392604] pc : [<76d5cc88>] lr : [<76d5cc79>] psr: 600b0030 [ 54.398895] sp : 7e84c698 ip : 76eb1bfc fp : 7e84c810 [ 54.404121] r10: 01cf4cd8 r9 : 7e84c9fc r8 : 01cf9988 [ 54.409371] r7 : 01cf5308 r6 : 01cf9988 r5 : 01d51d78 r4 : 636f6c2f [ 54.415901] r3 : 01d22b40 r2 : 01cf305c r1 : 02000000 r0 : 636f6c2f [ 54.422467] Flags: nZCv IRQs on FIQs on Mode USER_32 ISA Thumb Segment user [ 54.429907] Control: 10c5387d Table: 9530406a DAC: 00000055 [ 54.435659] CPU: 0 PID: 495 Comm: weston Not tainted 5.4.91-5.1.0-devel+git.6ad99da2c675 #1 [ 54.444013] Hardware name: Freescale i.MX6 Ultralite (Device Tree) [ 54.450222] [<8010db6c>] (unwind_backtrace) from [<8010ae84>] (show_stack+0x10/0x14) [ 54.457980] [<8010ae84>] (show_stack) from [<808c9514>] (dump_stack+0x90/0xa4) [ 54.465218] [<808c9514>] (dump_stack) from [<8011194c>] (__do_user_fault+0xfc/0x100) [ 54.472972] [<8011194c>] (__do_user_fault) from [<80111d2c>] (do_page_fault+0x354/0x394) [ 54.481074] [<80111d2c>] (do_page_fault) from [<80111ed4>] (do_DataAbort+0x3c/0xc0) [ 54.488741] [<80111ed4>] (do_DataAbort) from [<80101ddc>] (__dabt_usr+0x3c/0x40) [ 54.496138] Exception stack(0x952fdfb0 to 0x952fdff8) [ 54.501199] dfa0: 636f6c2f 02000000 01cf305c 01d22b40 [ 54.509385] dfc0: 636f6c2f 01d51d78 01cf9988 01cf5308 01cf9988 7e84c9fc 01cf4cd8 7e84c810 [ 54.517567] dfe0: 76eb1bfc 7e84c698 76d5cc79 76d5cc88 600b0030 ffffffff\ ........

ELB-3531FixedDownstream linux kernel can't start on Colibri IMX7 EMMCColibri iMX7Device Tree, KernelLowNo

Description: U-Boot 2020.07-5.2.0-devel+git.f34eb0c0ac97 (Dec 29 2020 - 07:36:30 +0000) CPU: Freescale i.MX7D rev1.3 1000 MHz (running at 792 MHz) CPU: Extended Commercial temperature grade (-20C to 105C) at 37C Reset cause: POR DRAM: 1 GiB PMIC: RN5T567 LSIVER=0x01 OTPVER=0x0d MMC: FSL_SDHC: 1, FSL_SDHC: 0 Loading Environment from MMC... OK In: serial Out: serial Err: serial Model: Toradex Colibri iMX7 Dual 1GB (eMMC) V1.1A, Serial# 06448704 SEC0: RNG instantiated Net: eth0: ethernet@30be0000 Hit any key to stop autoboot: 0 switch to partitions #0, OK mmc1 is current device Scanning mmc 1:1... switch to partitions #0, OK mmc0(part 0) is current device Scanning mmc 0:1... Found U-Boot script /boot.scr 4807 bytes read in 14 ms (335 KiB/s) ## Executing script at 87000000 Loading DeviceTree: imx7d-colibri-emmc-eval-v3.dtb 64393 bytes read in 15 ms (4.1 MiB/s) 14 bytes read in 11 ms (1000 Bytes/s) 6698448 bytes read in 221 ms (28.9 MiB/s) Bootargs: root=PARTUUID=d57d2f7e-02 ro rootwait console=tty1 console=ttymxc0,115200n8 co0 Kernel image @ 0x81000000 [ 0x000000 - 0x6635d0 ] ## Flattened Device Tree blob at 82000000 Booting using the fdt blob at 0x82000000 Loading Device Tree to 8ffcd000, end 8fffffff ... OK Starting kernel ...

ELB-3530FixedNo Output on Parallel RGB Port, 7 Inch Capacitive/Resistive Touch PanelColibri iMX8XCapacitive Touch, Device Tree, Graphics, LVDS, Multimedia, VGACriticalNo

Description: There is no output on the parallel RGB port which affects the operation of 7 inch capacitive and resistive touch panels.

ELB-3473FixedThe module turns the power down on suspendingApalis iMX6, Colibri iMX6Power ManagementLowNo

Description: After soft rebooting a system, it is not suspending successfully if it's requested. Instead, a system turns the power down.

Workaround: Always power off a system before booting it.

ELB-3448FixedXDG_RUNTIME_DIR Variable Not Set Using SSHApalis iMX8Buildsystem, GraphicsLowNo

Description: The XDG_RUNTIME_DIR variable required for graphical Wayland/Weston output is not set in an SSH shell.

Workaround: Use the local serial console instead.

ELB-3434FixedUpstream: Can't Return From SuspendApalis iMX6, Colibri iMX6ULLPower ManagementLowNo

Description: On upstream kernel based images resume from suspend is not working.

Workaround: Use a kernel without CONFIG_THUMB2_KERNEL.

ELB-3409FixedUSB Client/Host Switching Does Not WorkApalis iMX8USBLowNo

Description: USB switches its role-state from client to host, client works but host does not enumerate plugged in devices.

Workaround: None

ELB-3408FixedApalis iMX8 eMMC much slower compared to BSP 3Apalis iMX8Flash, SDIO/SD/MMCLowNo

Description: eMMC speed is slower compared to BSP 3

Workaround: delete the extra pinctrl-handle in the device tree

ELB-3406FixedApalis iMX8 Boot not Reliable/HDMI CrashApalis iMX8HDMILowNo

Description: HDMI driver is sometimes crashing when booted.

Workaround: Do not use CONFIG_DRM_CDNS_HDMI_CEC

ELB-3340FixedAfter Waking up From Suspend Mode, Ethernet Is DisabledVerdin iMX8M MiniEthernetLowNo

Description: Ethernet is disabled when waking up after a suspend.

ELB-3228FixedUSB message errors on Apalis iMX8QMApalis iMX8USBLowNo

Description: On certain modules USB Host does not work correctly and outputs an endless error "usb 3-1: device descriptor read/all, error -71"

Workaround: Use the adjusted pinmuxing for USB-HSIC &usbh1 node in devicetree from most recent images. http://git.toradex.com/cgit/linux-toradex.git/tree/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi?h=toradex_5.4-2.3.x-imx#n1192

5.1.0 (Release date: 2020-12-30)
Dunfell Q4 2020 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-1-0-quarterly
ELB-3428FixedPCIe Not WorkingApalis iMX8XPCIeLowNo

Description: Make sure PCIe works for 5.4.x-2.1.0 kernel.

ELB-3424FixedU-Boot: USB Host Not WorkingApalis iMX8XBootloader, USBLowNo

Description: Add support for USB Host in U-Boot.

ELB-3423FixedAnalogue Audio Not WorkingApalis iMX8XAnalog AudioLowNo

Description: Add support for audio to the new 5.4.x-2.1.0 kernel.

ELB-3400FixedSTMPE ADC Driver is Not InstalledApalis iMX6Analog InputsLowNo

Description: Add STMPE ADC driver back that is missing.

ELB-3396FixedLinks to Analog Input Devices Are Missing on Colibri iMX6ULLColibri iMX6ULLAnalog InputsLowNo

Description: Symlinks linking to ADC inputs are missing.

ELB-3339FixedThermals on Colibri iMX7 do Not WorkColibri iMX7Temperature SensorLowNo

Description: Adjust developer website to new paths used on BSP 5.

ELB-3308FixedHang During poweroff When Doing Soft RebootColibri iMX7WatchdogLowNo

Description: When doing soft reboot Colibri iMX7 hangs during poweroff sequence.

ELB-3237FixedApalis iMX8 Does Not Support Exotic DisplaysApalis iMX8HDMILowNo

Description: The Apalis iMX8 HDMI has problems with some display resolutions. This ticket solves the issues.

ELB-3195FixedDrop ptest From DISTRO_FEATURESApalis iMX6, Apalis iMX8, Apalis iMX8X, Apalis TK1, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7, Colibri iMX8X, Verdin iMX8M Mini, Verdin iMX8M PlusBuildsystemLowNo

Description: Drop ptest from DISTRO_FEATURES. This should reduce total packages that have to be built.

ELB-3188FixedCorrupted Build Info in U-BootApalis iMX8, Apalis iMX8X, Colibri iMX8X, Verdin iMX8M Mini, Verdin iMX8M PlusBootloaderLowNo

Description: NXP i.MX 8QXP/8QM-based modules the buildinfo shows some garbage instead of IMX-MKIMAGE version used.

ELB-3181FixedLPSPI Occasionally Receives Wrong DataApalis iMX8, Apalis iMX8X, Colibri iMX8XSPILowNo

Description: LPSPI occasionally receives wrong data.

Workaround: NXP’s L5.4.47-2.2.0 release seems to have this fixed on their i.MX 8QuadXPlus Multisensory Enablement Kit (MEK).

ELB-3179FixedWEIM Pins Missing in Device TreeColibri iMX7External Memory BusLowNo

Description: WEIM pins missing in device tree.

Workaround: Copy the device tree setting from kernel branch 4.14-2.3.x-imx.

ELB-3178FixedSending Data to ttyLP2 Leads to Endless LoopApalis iMX8UARTLowNo

Description: Sending Data to ttyLP2 leads to endless loop.

ELB-3177FixedApalis iMX8 External RGMII Interface IssueApalis iMX8EthernetLowNo

Description: Enabling fec2 in device tree will lead to eth0 and eth1 interfaces stop working.

ELB-3156FixedColibri iMX8X Non-Wi-Fi Modules Not BootingColibri iMX8XWi-FiLowNo

Description: Kernel stuck at enumerating PCIe on Colibri iMX8X non-Wi-Fi modules.

Workaround: In U-Boot enter 'setenv tdxargs initcall_blacklist=imx6_pcie_init && saveenv'.

ELB-3154FixedUSB Not Working Properly on i.MX 8X SoMsColibri iMX8XUSBLowNo

Description: USB not working properly with multiple errors looking like
[ 12.054106] usb 1-1.1: new high-speed USB device number 7 using cdns-usb3
[ 12.199669] usb 1-1.1: unable to read config index 0 descriptor/all
[ 12.206008] usb 1-1.1: can't read configurations, error -71
[ 12.298077] usb 1-1.1: new high-speed USB device number 8 using cdns-usb3
[ 12.455115] usb 1-1.1: unable to read config index 0 descriptor/all
[ 12.461442] usb 1-1.1: can't read configurations, error -71

ELB-3153FixedQt Demo Not Working Due to Migration to WaylandColibri iMX6ULL, Colibri iMX7Graphics, MultimediaLowNo

Description: On NXP i.MX 6ULL and i.MX 7 based modules the qt-demo is not working due to the missing qt-wayland backend. Fix this.

ELB-3152FixedInconsistent Module Autoload Between Downstream and UpstreamColibri iMX6KernelLowNo

Description: Add usbgadget and libcomposite to upstream images.

ELB-3024FixedMCP2515 CAN Controller Doesn't Work Properly on toradex_5.4-2.1.x-imxColibri iMX7, Colibri iMX8XCANLowNo

Description: Add support for MCP2515 SPI-to-CAN controller.

ELB-3003FixedMwifiex: Invalid Sched_Scan ParametersApalis iMX8, Apalis iMX8X, Colibri iMX6ULL, Colibri iMX8X, Verdin iMX8M MiniWi-FiLowNo

Description: When using the on-module Wi-Fi "Invalid Sched_scan" message appears. This error message has no meaning in our use-case so we removed it.

5.0.0 (Release date: 2020-10-06)
Initial Dunfell Q3 2020 Quarterly Release. Learn more on https://www.toradex.com/news/bsp-layers-reference-images-yocto-project-5-0-0-quarterly
ELB-3033FixedIncorrect Voltage Setting with Risk of Damage to i.MX 8M Mini and Nano Applications ProcessorsVerdin iMX8M MiniPower ManagementCriticalNo

Description: NXP issued an urgent notice about an issue they found in the PMIC driver which may damage i.MX 8M Mini and Nano application processors.

Workaround: Update to a later BSP version which has this addressed. You are encouraged to switch to BSP 5 since BSP 4 has been deferred (https://www.toradex.com/blog/torizon-yocto-project-long-term-support-alignment).

ELB-3032FixedIxora GPIO/LED List May be Shifted by OneApalis iMX8GPIO, KernelLowNo

Description: The GPIO list as visible at /sys/kernel/debug/gpios is shifted by one (e.g. it starts with gpio5-01 while it really should start with gpio5-00).

ELB-2965FixedHDMI and LVDS do not Work ConcurrentlyApalis iMX8Graphics, HDMI, LVDSLowNo

Description: If the HDMI firmware gets loaded in U-Boot, LVDS and HDMI won't work concurrently.

Workaround: Load HDMI firmware in linux from /lib/firmware like the BSP does it by default.

ELB-2919FixedUMS Command Doesn't Work on Verdin iMX8M MiniVerdin iMX8M MiniBootloaderLowNo

Description: UMS command doesn't work on Verdin iMX8M Mini.

ELB-2918FixedReset Command Doesn't Work on Verdin iMX8M MiniVerdin iMX8M MiniBootloaderLowNo

Description: Reset command doesn't work on Verdin iMX8M Mini.

ELB-2522FixedVerdin iMX8MM CSI2 CameraVerdin iMX8M MiniCSINo

Description: The OV5640 camera currently only works when requesting a 640x480 resolution. All higher resolutions have the gstreamer pipeline start but then no video data get displayed.

3.0.5
ELB-3893Known IssueU-Boot stores high assembly-versions incorrectlyApalis iMX6BootloaderLowNo

Description: cfgblock create <16-digit-serial> modifies the 7th digit to be always 0. This creates a wrong version information for modules with an assembly version 'K' or higher (e.g. Apalis iMX6 V1.1K)

Workaround: Start 'cfgblock create' without parameters to enter the data in the interactive mode.

3.0.4 (Release date: 2020-04-21)
LTS release. Learn more on https://www.toradex.com/news/embedded-linux-yocto-project-bsp-3-0-4-lts-for-imx-tk1-system-on-modules
ELB-2610Fixed[userspace] systemd/connman withdraws IP when NFS is usedColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6LowNo

Description: [userspace] systemd/connman withdraws IP when NFS is used

ELB-2596FixedSDIO Wi-Fi Firmware Crash Leading to Wi-Fi Driver Being StuckColibri iMX6ULLBluetooth, SDIO/SD/MMC, Wi-FiLowNo

Description: The mwifiex_sdio driver goes into an unrecoverable state after the firmware of the SDIO Wi-Fi module has crashed. Note: this only covers the Wi-Fi only use case while NXP is still working on the concurrent Wi-Fi Bluetooth use case (see ELB-3039).

Workaround: Use the mwifiex_sdio driver from backports-5.4 for robust Wi-Fi functionality. Note: this only covers the Wi-Fi only use case while NXP is still working on the concurrent Wi-Fi Bluetooth use case (see ELB-3039).

ELB-1418FixedSPI transmission with 9 bits per word driving 16 clock cycles when transferring a few bytesColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6SPILowNo

Description: This issue occurs for transferring 2 to 31 bytes count.

Workaround: Apply fix https://github.com/torvalds/linux/commit/2801b2f5fad3d1e9ea0ac8484584051071065645#diff-4cb745fc6dcd5915b18eb9baa5beee00.

3.0b3 (Release date: 2019-12-31)
This release supports Verdin iMX8M Mini, Apalis TK1, Apalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7 and Colibri iMX8X. Learn more on https://www.toradex.com/news/3-0b3-embedded-linux-bsps-for-apalis-colibri-verdin-system-on-modules
ELB-1410FixedWrong Pin Settings for GPIOsColibri iMX6ULLGPIOLowNo

Description: The Pin Settings in the Colibri iMX 6ULL for GPIOs are wrong.

Workaround: Use correct Pin Settings as documented in the Device Tree Customization article.

ELB-1350FixedUsing ELF Files for M4 Core Fails with 3.0b2 U-BootColibri iMX7BootloaderLowNo

Description: The relevant patches to use bootaux with ELF files exist only in our downstream 2016.11 based U-Boot. [krm@max-pc u-boot-toradex]$ git log --oneline arch/arm/imx-common/imx_bootaux.c 08972759fd imx: imx-common: do not zero out outside of regions f0d5faf6f5 imx: imx-common: add elf firmware support 0c62005b96 imx: imx-common: move aux core image parsing to common code I assume that the 'while (mmap)' loop might loop forever if the address cannot be found. Probably 'while (mmap->size)' would leave the loop when reaching the sentinel entry.

ELB-1338FixedDocument i.MX8 Series Based SoM Bootloader and Kernel BuildColibri iMX8X, Apalis iMX8BootloaderLowNo

Description: Amend the following page with instructions on how to build for Apalis iMX8 and Colibri iMX8X, including the toolchain to use: https://developer.toradex.com/knowledge-base/build-u-boot-and-linux-kernel-from-source-code

ELB-1337FixedRpMsg char not working correctlyLowNo

Description: RpMsg char Device does not work correctly

ELB-1300Fixedpixelclk-active changes doesn't seem to applyColibri iMX6ULLRGBLowNo

Description: pixelclk-active = 1 still drives data at CLK in active low

Workaround: Use display resolution timings in kernel-parameters set in u-boot.

3.0b2 (Release date: 2019-08-30)
This release supports Apalis TK1, Apalis iMX6, Apalis iMX8, Colibri iMX6, Colibri iMX6ULL, Colibri iMX7 and Colibri iMX8X in addition to Apalis iMX8QM V1.0B. See more at https://www.toradex.com/news/3-0b2-embedded-linux-bsps-for-apalis-colibri-system-on-modules
ELB-1308FixedSGTL5000 doesn't resume properlyColibri iMX8XAnalog Audio, Digital AudioLowNo

Description: Audio codec sgtl5000 doesn't successfully resume after suspending the system.

ELB-1291FixedBoot FAT File System CorruptionColibri iMX8XBootloaderLowNo

Description: While V1.0B modules with their bring-up BSP are fused and do boot from the primary eMMC hardware boot area partition their U-Boot environment still gets stored to the regular eMMC hardware user area partition which may corrupt the primary boot FAT partition.

Workaround: Do NOT save your U-Boot environment or your primary boot FAT partition will get corrupted.

ELB-1268FixedRework Profile HandlingApalis iMX8X, Colibri iMX8X, Colibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Apalis TK1, Apalis iMX8BuildsystemLowNo

Description: meta-toradex-demos currently provides /etc/profile. Rework that to take /etc/profile from OE core and put our extension as scripts into /etc/profile.d.

ELB-1264FixedMove to Newer Mainline U-BootColibri iMX8X, Colibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Apalis TK1, Apalis iMX8BootloaderLowNo

Description: Move to a newer mainline U-Boot for future-prove support.

ELB-1204FixedCrashes in Dual Camera Use CaseApalis TK1CSILowNo

Description: Apalis TK1 dual camera use case crashes when one camera application is stopped and subsequently restarted.

ELB-1194FixedSTMPE811 ADC: Timeouts And Reads From False ChannelsColibri iMX8X, Apalis iMX6, Colibri iMX6, Apalis iMX8Analog Inputs, Capacitive TouchLowNo

Description: Timeouts and reads from false channels may be observed when using STMPE811 ADC.

ELB-1190FixedeCSPI: TXFIFO empty flag glitch can cause the current FIFO transfer to be sent twice (ERR009165)Apalis iMX6, Colibri iMX6SPILowNo

Description: Commit 41ec065f fixed the eCSPI SDMA script type for SPI1-4 only.
Commit df07101e did set the wrong SDMA script type for SPI5. The workaroud SDMA script does NOT work on the SPBA bus, so revert to the correct SDMAa script type for SPI5.

ELB-1016FixedWrong eMMC Signalling Voltage SpecifiedApalis TK1SDIO/SD/MMCLowNo

Description: During bring-up we disabled HS200 as it proved not to be stable but maybe that is just due to the SDHCI stack assuming a wrong signalling voltage of 3.3 volts: root@apalis-tk1:~# cat /sys/kernel/debug/mmc0/ios clock: 52000000 Hz vdd: 7 (1.65 - 1.95 V) bus mode: 2 (push-pull) chip select: 0 (don't care) power mode: 2 (on) bus width: 3 (8 bits) timing spec: 7 (sd uhs DDR50) signal voltage: 0 (3.30 V)

3.0b1 (Release date: 2019-06-12)
This is the initial release for Apalis iMX8QM V1.0B only. See more at https://www.toradex.com/news/3-0b1-embedded-linux-bsps-for-apalis-imx8-system-on-modules
ELB-989FixedMIPI-CSI OV5640 Stutters using the OpenEmbedded/Yocto BSP GStreamerApalis iMX8CSILowNo

Description: Using GStreamer 1.12 from the OpenEmbedded/Yocto BSP with the MIPI-CSI OV5640 camera driver CONFIG_MXC_CAMERA_OV5640_MIPI_NV stutters (frames seem to be shown not in the correct order).

ELB-987FixedU-Boot Hangs with Some UHS-I SD cardApalis iMX8SDIO/SD/MMCLowNo

Description: U-Boot hangs early if certain UHS-I SD cards are used.

2.8.8 (Release date: 2021-11-24)
ELB-3893Known IssueU-Boot stores high assembly-versions incorrectlyApalis iMX6BootloaderLowNo

Description: cfgblock create <16-digit-serial> modifies the 7th digit to be always 0. This creates a wrong version information for modules with an assembly version 'K' or higher (e.g. Apalis iMX6 V1.1K)

Workaround: Start 'cfgblock create' without parameters to enter the data in the interactive mode.

2.8.7 (Release date: 2020-06-10)
2.8 maintenance release. Learn more on https://www.toradex.com/news/2-8-7-embedded-linux-yocto-project-bsps-for-apalis-colibri-system-on-modules
ELB-2785FixedPinmuxing Issue with CAN_INT on PTB21Colibri VF50, Colibri VF61CAN, GPIOLowNo

Description: The following pinmuxing error may be seen during boot: [ 20.255028] vf610-pinctrl 40048000.iomuxc: pin VF610_PAD_PTB21 already requested by 40048000.iomuxc; cannot claim for spi1.0 [ 20.281777] vf610-pinctrl 40048000.iomuxc: pin-43 (spi1.0) status -22 [ 20.296277] vf610-pinctrl 40048000.iomuxc: could not request pin 43 (VF610_PAD_PTB21) from group can_int on device 40048000.iomuxc [ 20.324217] mcp251x spi1.0: Error applying setting, reverse things back

Workaround: Luckily, due to the pin already being muxed as a GPIO by means of hogging it still actually functions properly.

ELB-1303FixedFix hostapd systemd startupColibri iMX6ULLWi-FiLowNo

Description: hostapd systemd does not work on the startup

Workaround: In /lib/systemd/system/hostapd.service, change the line "After=network.target" to "After=multi-user.target"

ELB-1267FixedColibri iMX6ULL 512MB Wi-Fi module not resuming after suspendColibri iMX6ULLPower Management, Wi-FiLowNo

Description: The on-module Wi-Fi might not resuming after suspend.

Workaround: Re-loading all Wi-Fi related kernel modules may help.

ELB-2300FixedAnalog Camera doesn't work on Colibri T20 V1.2A.001Colibri T20LowNo

Description: The analogue camera adapter/module connected to the parallel camera interface of the Colibri T20 is not working.

Workaround: Manually enabling the BL_ON GPIO which is used as NRESET on the ACA may help.

ELB-1185FixedSGTL5000 Audio Codec Produces Clack/Pop Sounds While PlayingColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Apalis TK1Analog Audio, Analog Inputs, Digital AudioLowNo

Description: Apalis TK1, Apalis/Colibri iMX6*/7: SGTL5000 audio codec may produce clack/pop sounds while playing.

Workaround: Fix removing all found clacks/pops produced by SGTL5000 audio codec available in -next branches of toradex_tk1_l4t_r21.7 and toradex_4.9-2.3.x-imx.

2.8b6 (Release date: 2019-04-01)
ELB-1199FixedUSB 3.0 Disabled on USB OTG Port by DefaultApalis TK1USBLowNo

Description: In order to use USB 3.0 with BSP 2.8b6 modify the U-Boot defargs environmental variable from "usb_port_owner_info=2" to "usb_port_owner_info=3". This will disable USB OTG functionality on USBO1 port and enable USB 3.0 host mode.

ELB-1169FixedCAN Interface Disabled in the Colibri Evaluation Board Device Tree of the Colibri VF50/VF61Colibri VF50, Colibri VF61CANLowNo

Description: The MCP2515 SPI CAN controller as found on the Colibri Evaluation Board is disabled by default in favour of toradex,evalspi SPIDEV. Let us change this like on the other Colibri modules.

Workaround: Just add Status = "disabled" to the toradex,evalspi device tree node and okay to the MCP2515 one.

ELB-1141FixedUpdate libgstnvegl and libgstomx-0.10 to L4T R21.7Apalis TK1MultimediaLowNo

Description: We still had some recipes labelled with 21.5. Going through all our TK1 recipes we identified libgstnvegl and libgstomx-0.10 never actually got updated to building off from R21.7 sources.

Workaround: Fix available on meta-toradex-tegra.git branch rocko-next.

ELB-1137FixedColibri iMX6ULL/iMX7: Suspend/Resume Regression in 2.8b5Colibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6Power ManagementLowNo

Description: Resuming after suspend may not work.

ELB-1104FixedKernel Bug when Connecting to the ULLs Bluetooth from AndroidColibri iMX6ULLBluetoothLowNo

Description: If an Android phone is connected to the Colibri iMX6ULL, then an unexpected Linux kernel bug is shown and Bluetooth stops connecting. The only solution is to restart the module.

ELB-1099FixedUpdate Temperature Trip PointsColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6Temperature SensorLowNo

Description: The following temperature trip points are in effect now:
Throttling: 95°C
Shutdown: 105°C

ELB-1047Fixediptables Not Supported by Default Linux Kernel ConfigurationColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30EthernetLowNo

Description: iptables -L is not supported by our default Linux kernel configuration.

Workaround: A custom Linux Kernel compilation with correct configuration can solve the issue. The correct Linux kernel configuration is e.g. described here:
https://wiki.gentoo.org/wiki/Iptables

ELB-1031FixedUSB OTG High Speed Host Not Working CorrectlyApalis TK1USBLowNo

Description: Apalis TK1 running BSP 2.8b3 may experience issues connecting USB 2.0 devices to the OTG USB port.

Workaround: Modify the U-Boot defargs environmental variable from "usb_port_owner_info=3" to "usb_port_owner_info=2" to disable USB 3.0 for stable OTG operation. This is now the default as of BSP 2.8b6.

2.8b5 (Release date: 2018-12-28)
ELB-1123FixedLinux Kernel Freeze if M4 Firmware Previously Started From Within U-BootColibri iMX7BootloaderLowNo

Description: Kernel crashes after M4 firmware started. The only log message is "Starting Kernel ...".

Workaround: Enter the following commands in U-Boot: setenv fdt_high=0xffffffff saveenv

ELB-1084FixedEthernet PHY May be Stuck in an Unknown State Doing ifdown/ifupColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6Ethernet, Power ManagementLowNo

Description: Doing ifdown/ifup may leave Ethernet PHY in an unknown state just permanently blinking preventing any communication. This is caused by an Ethernet PHY power-down without physically powering down resp. rail leaving the PHY in an unknown state which later upon powering it back up fails locking PLL. We may just disable PHY power-down bit (already implemented on Colibri VF50/61) or where possible properly implement powering down resp. rail.

ELB-1082FixedCapacitive Touch Not Working ReliablyColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30Capacitive TouchLowNo

Description: The touchscreen with 7" Capacitive Touch Display may not work well when used either on an Evaluation Board with the Capacitive Touch Adapter or on Aster or Ixora.

ELB-1067FixedBack Feeding on Ethernet PHY Rail When IP Link is Set DownColibri iMX7, Colibri iMX6ULLEthernetLowNo

Description: Back feeding on Ethernet rail when Ethernet is powered down.

ELB-953FixedColibri iMX6ULL 512MB Wi-Fi / Bluetooth IT Not Resuming From SuspendColibri iMX6ULLBluetooth, Power Management, Wi-FiLowNo

Description: Wake from suspend is not working on Colibri iMX6ULL 512MB Wi-Fi / Bluetooth IT.

2.8b4 (Release date: 2018-10-05)
ELB-1105FixedSupport Bluetooth 4.2Colibri iMX6ULLBluetoothLowNo

Description: Colibi imx6ull v1.0 supports BT 4.0 and BLE 4.1 Starting with imx6ull v1.1 we support BT\BLE 5.0

ELB-1081FixedCapacitive Touch not Working on AsterColibri T20, Colibri T30Capacitive TouchLowNo

Description: Touchscreen with 7" Capacitive Touch Display does not work when used on an Aster carrier board with a Colibri T20/T30 module.

ELB-1075FixedGpio Tool, IOMUXC SNVS AltFN Wrongly DisplayedColibri iMX6ULLGPIOLowNo

Description: The alternate function of the pins in the IOMUXC SNVS is wrongly displayed. These pins are always GPIO. (TAMPER[0-9], BOOT_MODE[0-1]. Fix this.

ELB-1066FixedUnify Pinmux Settings for flexcanColibri iMX7CANLowNo

Description: We have unused pinmuxings for flexcan1 and flexcan2. Unify the pad settings for the two.

ELB-1065FixedGpio Tool, Muxing of CAN on SODIMM 55/63Colibri iMX7CAN, GPIOLowNo

Description: The CAN muxing ALT2 (can1.RX, can1.TX) for these pins are labelled ftm1.RX, ftm1.TX. Fix this.

ELB-1061FixedCleanup flexcan Device Tree NodesColibri iMX7CANLowNo

Description: The Colibri iMX7 dts files define a flexcan1 node, but the developer webpage https://developer.toradex.com/knowledge-base/can-(linux) only describe how to enable a (non existing) flexcan2 node. Clean that up. Probably one should add in both places the missing node.

ELB-1048FixedFirmware on the Cortex-M4 Core might Crash when Loading an elf FirmwareColibri iMX7Miscellaneous PeripheralsLowNo

Description: The firmware might behave erratic/crash when loading using U-Boot bootaux command with an elf firmware.

ELB-1044FixedMore Rare eMMC Communication ErrorsColibri iMX7Flash, SDIO/SD/MMCMediumNo

Description: When running with HS400 at 200 MHz the Kernel may report eMMC errors such as "mmcblk0: error -84 transferring data". Some systems also show "warning! HS400 strobe DLL status REF not lock!". We have not seen issues which lead the system to be completely stuck. However, when using HS200 at 200MHz it affects performance very little (~5%) but seems to run without any errors.

ELB-1042FixedWrong i.MX 6 SoC Version ReportedApalis iMX6, Colibri iMX6CPULowNo

Description: The Linux kernel 4.1.44-2.7.4 may report a wrong i.MX 6 SoC version upon boot:
[ 0.109969] CPU identified as i.MX6Q, silicon rev 0.6

Workaround: The later Linux kernel 4.9.87-2.8.3 does report it correctly:
[ 0.069884] CPU identified as i.MX6Q, silicon rev 1.6
You may find a fix on the toradex_4.1-2.0.x-imx-next branch.

ELB-1034FixedDual CAN Operation on Apalis TK1 May Cause CAN to Stop WorkingApalis TK1CANLowNo

Description: In dual CAN operation, Apalis TK1 CAN may stop working, when error or collision happens on one of the busses.

ELB-1030FixedMissing PullUp on Touch Controller I2CColibri iMX6ULLResistive TouchLowNo

Description: The Colibri iMX6ULL V1.0 and V1.1 HW has no discrete pull ups on the I2C bus to the touch controller. This may lead to unreliable communication with the internal 100k pull ups and the used 80kHz I2C clock.

ELB-1024FixedCAN frames with baud rate different then 1Mbps will be treated as invalid between driver probe and interface upApalis TK1CANLowNo

Description: In a period between driver initialisation and interface bring-up, packets send on the bus with baud rate different then 1Mbps will be treated as invalid.

ELB-1017FixedAdjusting Apalis TK1 LVDS Drive Strength SettingsApalis TK1LVDSLowNo

Description: Apalis TK1 LVDS drive strength settings are hard-coded. Idea is to move those to the device tree as well.

Workaround: For now, settings can be changes in drivers/video/tegra/dc/sor.c file. Function tegra_dc_sor_enable_lvds contains writes to NV_SOR_LANE_DRIVE_CURRENT and NV_SOR_LANE4_DRIVE_CURRENT registers. Registers definitions can be found in the "Tegra K1 Reference Manual".

ELB-1006FixedFix SGTL5000 VDDA Supply SpecificationApalis iMX6, Colibri iMX6Analog AudioLowNo

Description: Currently, the device tree specifies 2.5V as SGTL5000 VDDA. This is wrong, in practice, the board uses 3.3V Audio voltage as VDDA.

ELB-1005FixedApalis TK1 PCIe Gigabit Bring-up Issue in MainlineApalis TK1Ethernet, PCIeLowNo

Description: Forward ported commit 7ad9771527d2 ("apalis-tk1: fix PCIe reset for reliable gigabit Ethernet operation") was never validated. Turns out it does not work and may lead to PCIe gigabit bring-up issues.

ELB-965FixedLegacy Update Procedure May Fail on Debian Stretch or Arch LinuxColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Generating a legacy update media using Debian Stretch and subsequently updating an Apalis TK1 failed during mounting the root file system.

Workaround: We recommend using the Toradex easy installer on platforms where it is supported. For the legacy update procedure, the easiest is to use one of the supported distributions:
https://developer.toradex.com/knowledge-base/board-support-package/openembedded-(core)#Prerequisites
Other distributions may have the option metadata_csum enabled per default for mkfs.ext4 (Debian Stretch, Arch, ...). This option is not supported on Linux kernels below 3.18 and generates a kernel panic during boot after the legacy update. As a workaround, one can disable this option in /etc/mke2fs.conf before executing the update.sh script. The ext4 man page also has a list of options with their corresponding supported kernels, which may be helpful to refer to in case of legacy update attempts on more exotic systems.

ELB-951FixedDo Not Enforce Building 32-Bit Host BinariesColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Enforcing to build 32-bit binaries for native and portions thereof using -m32 in EXTRA_OEMAKE_class-native may lead to the following error when building e.g. u-boot-toradex:
cbootimage: Accessing a corrupted shared library

Workaround: The -m32 as specified in EXTRA_OEMAKE_class-native in recipes-bsp/cbootimage/cbootimage.bb of meta-toradex-tegra may be overridden to your liking. The same applies to the following as well:
meta-toradex-demos: recipes-devtools/mtd/mtd-utils_%.bbappend
meta-toradex-nxp: recipes-devtools/imx-loader/imx-loader_git.bb
meta-toradex-tegra: recipes-bsp/tegrarcm/tegrarcm.bb
meta-toradex-tegra: recipes-support/libcryptopp/libcryptopp_5.6.4.bb

ELB-871FixedRAM Timing Issues on Colibri VF50/VF61Colibri VF50, Colibri VF61RAMLowNo

Description: Modules with NANYA RAM chips assembled may rarely show timing issues leading to non-booting modules or otherwise unstable behaviour. We adjusted the on-die termination settings and fully validated & verified various modules in our temperature chambers.

ELB-493FixedSupport MXM/SODIMM Pin Numbers to Get/Set GPIOsColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30GPIOLowNo

Description: Allow using MXM or SODIMM pin numbers to get or set GPIOs. This also allows for easier code porting from one to another Toradex module.

2.8b3 (Release date: 2018-06-27)
ELB-1004FixedAudio Codec not WorkingColibri iMX7Analog AudioLowNo

Description: With the toradex_4.9-1.0.x-imx kernel the sgtl5000 audio codec is bound to the I2S interface with the simple card driver but the driver is not part of the kernel config.

Workaround: Add CONFIG_SND_SIMPLE_CARD to the kernel config.

ELB-999FixedFails Poweroff/Shutdown Instead Reboots When Using Mainline LinuxApalis TK1Bootloader, KernelLowNo

Description: The apalis-tk1-mainline machine fails poweroff/shutdown and instead just reboots.

Workaround: The rocko-next branch of meta-toradex-tegra features a patch which disables the AMS AS3722 PMIC's auto power on when AC OK feature otherwise enabled by default and causing a reboot rather than full poweroff.

ELB-991FixedFix SDK libGL.so, Currently it is a Dangling SymlinkApalis TK1BuildsystemLowNo

Description: In a SDK the symlink sysroots/armv7at2hf-neon-angstrom-linux-gnueabi/usr/lib/arm-linux-gnueabihf/tegra/libGL.so currently points to ./arm-linux-gnueabihf/tegra/libGL.so.1 which does not exist.

Workaround: Fix the symlink in the unpacked SDK: ln -fs libGL.so.1 .../sysroots/armv7at2hf-neon-angstrom-linux-gnueabi/usr/lib/arm-linux-gnueabihf/tegra/libGL.so

ELB-982FixedSD Card not Working in U-BootColibri iMX6ULLBootloader, SDIO/SD/MMCLowNo

Description: SD card is not detected in U-Boot even after using "mmc rescan".

Workaround: Fix already available in 2016.11-toradex-next U-Boot branch.

ELB-981FixedYocto Project Layer Readmes May Not be Up-to-dateColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Our Yocto Project layer readmes may not be up-to-date.

Workaround: Make sure to use valid combinations e.g. as available as tagged repo meta data:
http://git.toradex.com/cgit/toradex-bsp-platform.git

ELB-979FixedOpenCV4Tegra Fails Building Due to Missing DependenciesApalis TK1CSI, GraphicsLowNo

Description: OpenCV4Tegra currently fails to build due to a missing dependency on libpng12.

Workaround: The libpng12 recipe has been re-added to the rocko-next branch of meta-toradex-tegra so OpenCV4Tegra is at least buildable again. However, for full OpenCV4Tegra support, we recommend using NVIDIA's JetPack resp. Linux for Tegra aka L4T as explained in the following article on our developer website:
https://developer.toradex.com/knowledge-base/installing-nvidia-jetpack-with-l4t-on-apalis-tk1

ELB-966FixedLegacy Update Procedure Fails on Colibri T20 256MB With Regular LXDE Demo ImageColibri T20BuildsystemLowNo

Description: Unfortunately, starting with BSP 2.8b2 the regular LXDE based demo image root file system reached a size which does no longer easily fit into 256MB of RAM, therefore, failing the legacy update procedure (it may just hang or even crash but definitely fails updating the root file system).

Workaround: Doing the following before 'run setupdate; run update' helps:
setenv fdt_addr_r 0x01000000

ELB-960FixedBuilding on Ubuntu 18.04 FailsColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Building 2.8b2 and earlier fails on Ubuntu 18.04 LTS.

Workaround: It works on Ubuntu 16.04 LTS.

ELB-954FixedColibri iMX6ULL Crashing After Resuming from Suspend on IrisColibri iMX6ULLPower ManagementLowNo

Description: Colibri iMX6ULL Crashing After Resuming from Suspend on Iris

Workaround: A patch is available in toradex_4.9-1.0.x-imx-next "arm: imx: gpc: do not poweroff M/F mix in suspend"

ELB-944FixedRegression: PCI Express Failing to Enumerate on Apalis iMX6Apalis iMX6Kernel, PCIeLowNo

Description: While BSP 2.8b1 enumerated PCIe on the Apalis evaluation board just fine BSP 2.8b2 may fail with the following error message:
busn_res: can not insert [bus 02-01] under [bus 01] (conflicts with (null) [bus 01])

Workaround: As a workaround you may just revert the following offending commit for now:
http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_4.9-1.0.x-imx&id=9a4bf05126f42c2632729ab0da503021d74ed454

ELB-943FixedLegacy Update is not Deploying V1.2 Device TreeApalis TK1BuildsystemLowNo

Description: Apalis TK1 legacy update is not deploying the v1.2 devicetree.

Workaround: Use Toradex Easy installer or u-boot ums mode.

ELB-937FixedRS485: Using RTS to Control the Transceiver is not WorkingColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6UARTLowNo

Description: RS485 with using RTS to control the transceiver is not working. The RTS signal is not asserted during transmission. This is a regression in 2.8 BSPs (Linux kernel 4.9).

Workaround: Use ioctl to configure RS-485 and set the flag SER_RS485_RX_DURING_TX and SER_RS485_RTS_AFTER_SEND.

ELB-930FixedOverruns on UART Without DMA Lead to FIFO Out-Of-SyncColibri VF50, Colibri VF61UARTLowNo

Description: When the UART without DMA (fsl_lpuart.nodma=1) overruns, the FIFO can get out of sync. Once out of sync, characters appear delayed only after new characters have been received.

Workaround: Reopen UART in case overruns have been detected (see /proc/tty/driver/fsl-lpuart). Use UART in DMA mode makes overruns less likely to occur and seems not to suffer issues on overruns.

ELB-929FixedFraming Errors on UART With DMA Lead to FIFO Out-Of-SyncColibri VF50, Colibri VF61UARTLowNo

Description: When the UART with DMA (default) receives a character with framing errors (e.g. due to a break signal) the FIFO can get out of sync. Once out of sync, characters appear delayed only after new characters have been received.

Workaround: Reopen UART in case overruns have been detected (see /proc/tty/driver/fsl-lpuart). Use UART without DMA which handles Framing Errors correctly.

ELB-928FixedOnly Evaluation Board Device Trees Got Updated, Others May Have DivergedColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6Device TreeLowNo

Description: When migrating to the Linux kernel only the evaluation board device trees got updated, others may have diverged. This is especially the case with the Colibri camera device tree concerning e.g. RTC and new capacitive touch aka mxt.

ELB-927FixedColibri iMX7 Dual 1GB Aka eMMC SKU U-Boot Missing Fatwrite Command SupportColibri iMX7Bootloader, Flash, SDIO/SD/MMCMediumNo

Description: While all other eMMC based Toradex SoMs do support the fatwrite U-Boot command the Colibri iMX7 Dual 1GB currently does not. This is especially sad should anybody try using any legacy update procedure e.g. just for flashing the M4 firmware.

Workaround: For now just use UMS, do it from Embedded Linux user space or use the Toradex Easy Installer with a custom image JSON.

ELB-926FixedToradex Configuration Block Off by One IssueColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30Bootloader, ConfigBlockLowNo

Description: Currently the Toradex configuration block parser suffers an off by one issue potentially leading to spurious printout during boot e.g.
Model: Toradex V1.2A,
instead of
Model: Toradex UNKNOWN MODULE V1.2A.

Workaround: Fix available on 2016.11-toradex-next branch of git.toradex.com/u-boot-toradex.git.

ELB-925FixedCan Not Install Individual Backport Kernel ModuleColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Installing a single backport kernel module to an image at build time fails (e.g. by using IMAGE_INSTALL_append in local.conf).

Workaround: Install all backport kernel modules by using the "backports" package.

ELB-916FixedAdd Atmel mxt touch controller driver support for reset gpioColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30Capacitive TouchLowNo

Description: To get atmel mxt based touchscreens with GPIO connected reset line to work GPIO needs to be configured as an output with appropriate level separately.

ELB-906FixedMake Latest OE-Core, Morty Compatible With meta-toradex-bsp-commonColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: OE-Core layer did backport more package splits in the linux-firmware recipe. Due to this the HEAD of the morty branch clashes now with a similar split we did in meta-toradex-bsp-common resulting in a fatal QA error. (Compare with commit 0eaef98) ERROR: linux-firmware-1_0.0+gitAUTOINC+bf04291309-r0 do_package: QA Issue: linux-firmware-sd8887 is listed in PACKAGES multiple times, this leads to packaging errors. [packages-list]

Workaround: Delete the lines PACKAGES_prepend = "\ ${PN}-sd8887 \ " from meta-toradex-bsp-common/recipes-kernel/linux-firmware/linux-firmware_%.bbappend

ELB-902FixedMitigate Meltdown and Spectre Security Vulnerabilities for i.MX 6 and TK1 Based ModulesApalis iMX6, Colibri iMX6, Apalis TK1KernelLowNo

Description: Integrate solutions proposed by Nvidia (L4T R21.7) and NXP to mitigate Meltdown and Spectre security vulnerabilities.

ELB-869FixedPCIe Enumeration in U-Boot FailingApalis TK1Bootloader, I2C, PCIe, Power ManagementLowNo

Description: PCIe enumeration aka "pci enum" U-Boot command may fail in U-Boot due to some I2C/Power management issue.

ELB-859FixedSupport For AP Mode on Built-in Wi-FiColibri iMX6ULLWi-FiLowNo

Description: The built-in/on-module Wi-Fi of the Colibri iMX6ULL 512MB Wi-Fi / Bluetooth IT module currently does not support the access point aka ap mode.

Workaround: You may force the mwifiex driver to create two interfaces during initialization
echo "options mwifiex driver_mode=0x3" > /etc/modprobe.d/mwifiex.conf
The interface mlan0 is a regular station interface while the uap0 interface can be used as an access point.

ELB-462FixedSPDIF not WorkingApalis iMX6, Colibri iMX6Digital AudioLowNo

Description: SPDIF is not working in the V2.6 beta 2 release. This is a regression against older releases.

Workaround: Fixes found in the -next branches of our 3.14, 4.1 and 4.9 based Linux kernels.

2.8b2 (Release date: 2018-03-31)
In this release we switched to the generic compressed Kernel image type (zImage) instead of the legacy U-Boot specific uImage format. This could lead to non booting modules if a previously saved U-Boot environment is still set to uImage. Please see the following issue for more details: http://developer.toradex.com/software/linux/linux-software/release-details?view=all&issue=17925
ELB-909FixedFix scrot Recipe Source/MirrorColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: The scrot recipe source is 404.

ELB-899FixedRegression: Automounting Fails With systemd udev RulesColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30Buildsystem, SATA, SDIO/SD/MMC, USBLowNo

Description: The update to rocko (BSP 2.8b1) made automount fail for systems which do not trigger mounting through dbus/udisk2, i.e. which rely on udev rules.

ELB-898FixedAllow Setting The Display Timings From The Kernel Command LineColibri iMX7, Colibri iMX6ULLGraphicsLowNo

Description: Forward-port the change to allow configuring the display timings via kernel command line to the Linux kernel 4.9.

Workaround: -

ELB-897FixedBitbaking stress Reports Checksum MismatchColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: When building 2.8b1 building stress fails with "ERROR: stress-1.0.4-r0 do_fetch: Fetcher failure for URL: 'http://people.seas.harvard.edu/~apw/stress/stress-1.0.4.tar.gz'. Checksum mismatch!".

Workaround: Use 2.8b2 or remove the stress recipe under "meta-toradex-demos/recipes-support/stress/stress_1.0.4.bb" (this will use a fixed version of stress in openembedded-core/meta/recipes-extended/).

ELB-891FixedSwitching From USB Client to Host Not Working On BSP 2.8b1Colibri iMX6ULLUSBLowNo

Description: The USBC port does only work in device mode. Switching to host does not work. This is a regression introduced with the move to the 4.9 kernel version.

Workaround: Cherry-pick the following commit: 'ARM: dts: imx6ull-colibri: Specify cable detect as ID and VBUS pin' and recompile and deploy the device tree.

ELB-877FixedImage Viewer gpicview is no Longer in Demo ImageColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30Buildsystem, GraphicsLowNo

Description: In the demo images for BSP 2.8b1 the image viewer gpicview is not installed.

Workaround: Remove adwaita-icon-theme from BAD_RECOMMENDATIONS when building the image with openembedded.

ELB-870FixedInternal RTC Not AvailableColibri iMX7Device Tree, RTCLowNo

Description: The internal aka on-module RTC is not available since we migrated to the Linux 4.9 kernel (2.8b1).

ELB-854FixedMissing Temperature Sensor on Colibri iMX7SColibri iMX7Temperature SensorLowNo

Description: The thermal sensor driver on i.MX 7Solo does not probe successfully. There is no thermal sensor data available.

ELB-853FixedSystem Freeze After MCP2515 Initialization on Colibri iMX7S in 2.8b1Colibri iMX7KernelLowNo

Description: The system freezes during boot shortly after initializing the MCP2515 CAN controller. The CAN controller triggers a (re)probe of the thermal driver which fails to probe during boot. This late probe causes the driver to access OTOCP registers which are not clocked anymore.

Workaround: Add clk_ignore_unused to defargs in the U-Boot command line (e.g. by using "setenv defargs ${defargs} clk_ignore_unused").

ELB-805FixedRare Boot hang on Starting File System Check on Root DeviceColibri iMX7FlashMediumNo

Description: During boot-up of Colibri iMX7 Dual 1GB (with eMMC flash) sometimes the system freezes right after "Starting File System Check on Root Device".

ELB-789FixedDisable ASPM on TK1 to Increase PCIe Device CompatibilityApalis TK1PCIeLowNo

Description: Adding pcie_aspm=off to kernel cmdline may fix problems with PCIe cards on Apalis TK1.

ELB-784FixedApalis TK1 Increase CAN SpeedApalis TK1CANLowNo

Description: Target is to achieve >2k msg/s (1Mbit/s) on both CAN channels.

ELB-742FixedBuild Failure When Building Image the Next Day Without ChangesColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: After building an image completely successfully, building the same image the next day without any changes leads to an error "do_image_teziimg: Error executing a python function in exec_python_func()".

Workaround: Make an unrelated change in any recipe to force recreation of the rootfs.

ELB-616FixedU-Boot: Allow to Use SODIMM 169 as a GPIOColibri iMX7BootloaderLowNo

Description: Pads not used in U-Boot are accessible via GPIO command. However, SODIMM 169 is currently not available and is driven high at the moment in U-Boot.

ELB-583FixedRecovery U-Boot for iMX6Apalis iMX6, Colibri iMX6BootloaderLowNo

Description: We moved a while ago to a SPL/u-boot.img approach. The SPL runs in SRAM and configures the DDR-RAM, then it loads U-Boot proper into DDR and passes control. In the legacy update procedure, the recovery mechanism however stayed with a monolithic u-boot.imx binary which had to be built separately. Change also the recovery procedure to a download chain of first loading SPL and then u-boot.img. Note that the Toradex Easy Installer works that way successfully for some time.

2.8b1 (Release date: 2017-12-29)
ELB-858FixedApalis TK1 Does Not Wake From Sleep Using WAKE1_MICO# (TK1 GPIO DD3)Apalis TK1Kernel, Power ManagementLowNo

Description: Apalis TK1 did not wake from sleep if using WAKE1_MICO#.

ELB-827FixedDrop Support for Apalis iMX6 V1.0 HWApalis iMX6Device TreeLowNo

Description: The early sample hardware Apalis iMX6 V1.0A/B have a different UART pin-out which require a specific device tree. Starting with 2.8 Beta 1 we no longer provide these device trees.

Workaround: Use an older BSP or forward port the relevant changes between the device tree targeting the later HW vs. V1.0 HW.

ELB-826FixedBoth fchdir() And fstat() Fail With EBADF When File Was Previously Opened with O_PATH Flag on T20/T30Colibri T20, Colibri T30, Apalis T30KernelLowNo

Description: On Apalis/Colibri T20/T30 both fchdir() and fstat() fail with EBADF when the file was previously opened with the O_PATH flag.

Workaround: Required patches have been backported to our downstream Linux kernel: http://git.toradex.com/cgit/linux-toradex.git/log/?h=tegra-next

ELB-814Fixed"Timeout waiting for hardware interrupt" Errors when accessing eMMCColibri iMX7SDIO/SD/MMCLowNo

Description: The kernel prints "Timeout waiting for hardware interrupt" errors when accessing eMMC, particularly at boot-up.

ELB-809FixedUse ISO 8601 Date Format as Release Date in Toradex Easy Installer JSONColibri iMX7, Colibri iMX6ULL, Apalis iMX6, Colibri iMX6Buildsystem, Toradex FeatureLowNo

Description: Use ISO 8601 date format in the release_date property of the Toradex Easy Installer image JSON descriptor file.

ELB-790FixedApalis/Colibri T30 PWM Capped at 12.45kHz.Colibri T30, Apalis T30PWMLowNo

Description: Apalis/Colibri T30 PWM was capped at 12.45kHz. We've increased it to 99.6kHz that can be further divided by integer divider.

Workaround: PWM peripheral input clock value can be increased to a maximum of 48MHz. Valid clock values can be calculated pwm_clk = 408MHz/N, where N=<1 , 128.5> in 0.5 increments

ELB-783FixedMissing DRI_PRIME=1 Environment Variable Required For OpenGL ESApalis TK1GraphicsLowNo

Description: While BSP 2.8b1 does no longer require any special handling older BSPs apalis-tk1-mainline Mesa needed DRI_PRIME=1 to be defined as environment variable in order for OpenGL ES applications like glmark2-es to work right.

Workaround: In older BSPs adding DRI_PRIME=1 environment variable is required for OpenGL ES.

2.7b5 (Release date: 2017-12-01)
This is a maintenance release for Apalis TK1 (incl. V1.2A) and Colibri iMX6ULL (incl. 512MB Wi-Fi / Bluetooth IT V1.0A) only
ELB-861FixedFix CAN After SPI ImprovementsApalis TK1CANLowNo

Description: We fixed CAN after NVIDIA's recent L4T R21.6 SPI improvements.

ELB-795FixedDDC/EDID Detection Failing on IxoraApalis TK1Graphics, HDMI, I2CLowNo

Description: DDC/EDID detection was failing using Apalis TK1 V1.2A with 2.7b4 on Ixora.

ELB-780FixedGPIO Tool: Fix Pinmuxing for Apalis TK1 V1.2 HardwareApalis TK1GPIOLowNo

Description: As we juggled around some of the pins the GPIO Tool also needs updating.

ELB-580FixedImprove CSI Camera Module 5MP OV5640 SupportApalis TK1CSILowNo

Description: Camera support has been greatly improved by an update to the OV5640 driver from our camera partner Antmicro as well as NVIDIA's latest L4T R21.6 update.

2.7b4 (Release date: 2017-10-05)
In this release we changed to use Ext4 file system by default. This could lead to non booting modules if a previously saved U-Boot environment is set to non-ext4. Please see the following issue for more details: http://developer.toradex.com/software/linux/linux-software/release-details?view=all&issue=27678
ELB-817FixedMissing PWM Support Leaves Some Display Backlights OffColibri iMX6ULLPWMLowNo

Description: As PWM support is currently not available the PWM pin (SODIMM 59) is statically set to output with the value '0' in the regular U-Boot and to an input with pullup in the case of the Toradex Easy Installer. If a connected display has its backlight off in that case one ends up with a dark display. The VGA (RGB DAC) output is not affected.

Workaround: - On the Evaluation Board remove the PWM jumper and hard-wire the desired level. - For a regular image one can change the value from the U-Boot command line: 'gpio set 107'. E.g. add that as the first command to the bootcmd environment variable. - For the Toradex Easy Installer one can configure the pin to gpio and set a value from the U-Boot command line: 'mw.l 020e01a4 5 1; gpio clear 107'.

ELB-758FixedNo PWM Functionality on Apalis PWM3 PinApalis TK1PWMLowNo

Description: While the Apalis PWM3 pin is shared with the Apalis BKL1_PWM pin currently the former does not have the PWM pin muxing activated. Note that exporting PWM3 for raw sysfs access will therefore fail and one has to revert to using the pwm backlight.

Workaround: Change resp. pin muxing in the device tree. You may find a patch on our toradex_tk1_l4t_r21.5-next branch.

ELB-749FixedConfig Block Check During Update May Fail Depending on Hardware Area Boot Partition SizeColibri iMX7, Apalis iMX6, Colibri iMX6, Apalis TK1, Colibri T30, Apalis T30Bootloader, BuildsystemLowNo

Description: The config block check aka check_configblock may fail during update depending on the size of the hardware area boot partition which may lead to the config block not getting properly migrated or updated if still using parts of the legacy update procedure.

Workaround: Use U-Boot's built-in 'cfgblock create' functionality or use the Toradex Easy Installer where applicable. Alternatively find fixed legacy U-Boot update scripts in the -next branch of our meta-toradex-demo repository.

ELB-748FixedEnable Second CAN ChannelApalis TK1CANLowNo

Description: Target is to achieve >2k msg/s on both CAN channels.

ELB-740FixedPotential Gigabit Ethernet resp. PCIe InstabilityApalis TK1Bootloader, Ethernet, Kernel, PCIeLowNo

Description: So far in U-Boot we violated the PCIe reset timing specification and in Linux we did not do anything about doing the PCIe reset unisono with the separately switchable voltage rail of the gigabit Ethernet chip.

Workaround: A solution to the U-Boot side of things may be found on our -next branch now.

ELB-736FixedDefine Standard Rootfs Mount Behaviour and OptionsColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30Bootloader, FlashMediumNo

Description: The kernel does not know about rw,noatime. The string rw by itself is valid, and to pass additional arguments rootflags=noatime can be used. The kernel mounts ext3/ext4 file systems by default ro, hence so far the kernel mounted the rootfs read-only. The init manager systemd then remounts the rootfs after file system checking. This makes sense and does not add measurable boot time. Let the kernel explicitly mount ro on block device based rootfs. The root mount flag noatime is only relevant when re-mounting read-write, hence it needs to be present in /etc/fstab. UBIFS used on raw NAND devices has no user space file checking, hence there is no value to mount it in read-only first. Also mount time for UBIFS is larger, and mounting first read-only and then read-write has higher boot time (300ms, likely due to missing block cache). Let the kernel explicitly mount rw on raw NAND based rootfs. UBIFS has no atime support, hence no root mount flags needed.

Workaround: The change to initially read-only mounted root file system on Apalis TK1 requires the U-Boot emmcargs environment variable to be adjusted to run NVIDIA's JetPack resp. L4T as documented here: http://developer.toradex.com/knowledge-base/installing-nvidia-jetpack-with-l4t-on-apalis-tk1#Flashing_Latest_Boot_Loader

ELB-730FixedOnly 256MiB of Memory Available When Running Cortex-M4 Core on Colibri iMX7DColibri iMX7Kernel, RAMLowNo

Description: The Colibri iMX7D has 512MiB of memory. However, when running the Cortex-M4 core only half of the memory is available in Linux.

ELB-725Fixed'run update' Fails if the Rootfs is Exactly a Multiple of 64MApalis iMX6, Colibri iMX6, Apalis TK1, Colibri T30, Apalis T30BootloaderLowNo

Description: If an image creates a rootfs which is exactly a multiple of 64 MByte and then if one executes in U-Boot 'run update' the detection that all 64 MByte chunks have been flashed fails and the update never completes. Note that the Toradex Easy Installer is not affected.

Workaround: Check the last rootfs chunk on the update media and create a zero length chunk with incremented number, e.g.: $ ls -l //colibri-imx6/ ... -rw-r--r--. 1 root root 67108864 Jul 12 15:13 root.ext3-106 -rw-r--r--. 1 root root 67108864 Jul 12 15:13 root.ext3-107 -rw-r--r--. 1 root root 48128 Jul 12 15:13 SPL ... $ touch //colibri-imx6/root.ext3-108

ELB-721FixedDeploy Apalis iMX 6 Device Tree Tailored to Ixora V1.1Apalis iMX6KernelLowNo

Description: We forgot to actually deploy the new device tree: imx6q-apalis-ixora-v1.1.dtb.

Workaround: Just checkout the Linux kernel sources, build the device trees and copy imx6q-apalis-ixora-v1.1.dtb to the update SD card into the apalis_imx6 folder. Then in U-Boot first 'setenv fdt_file imx6q-apalis-ixora-v1.1.dtb; saveenv' and do a 'run setudpate; run update_fdt'.

ELB-720FixedParallel RGB Display and/or SD Card May Not Work Reliably on Latest ModulesColibri iMX7CAN, Device Tree, GPIO, Graphics, RGB, SDIO/SD/MMCLowNo

Description: Note: This is only an issue for Colibri iMX7S 256MB V1.1C and Colibri iMX7D 512MB V1.1D and later modules.
As it turns out not using LDO2 anywhere at all in the regular case is a bad idea leading to the following:
[ 2.317688] LDO2: disabling
Of course display and SD card still worked on the EvalBoard due to back feeding through some pull-ups however on Viola with just one pull-up it failed once both display and SD card were active...
Currently without an SD card inserted the regulator framework actually powers the LDO2 off however e.g. the BL_ON pin is also on that same rail!

Workaround: The following fixes were integrated:
http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_4.1-2.0.x-imx&id=0284f779bba00b930bd9bb12703e2092478531c7
http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_4.1-2.0.x-imx&id=ac8dcd0d7b7d17ad8ac42b42cb1f51d4417f4950
Fix this by specifying LDO2 to be always on and use the regular 3.3V supply from the carrier board as the vmmc-supply.
Specify that carrier board 3.3V supply to be always on as well to avoid the following misleading message during boot:
[ 2.299654] 3.3V: disabling
One remaining issue is that now in suspend LDO2 is still powered and even adding the following did not help:
regulator-state-mem {
    regulator-off-in-suspend;
};
Further investigation pending.

ELB-719FixedPower I2C Bus Communication Speed Should be Reduced to 100 KHzColibri T20, Colibri T30, Apalis T30I2C, Power ManagementLowNo

Description: Power I2C bus communication speed should be reduced to 100 KHz as our temperature sensor chip LM95245 is not rated for higher speeds.

ELB-716FixedInclude Gstreamer 0.10Apalis TK1MultimediaLowNo

Description: Unfortunately our current Angstrom/OpenEmbedded/Yocto BSP exclusively uses gstreamer 1.0 which we learned from multiple sources is not really production ready for TK1. We may consider switching to or at least including gstreamer 0.10 in the future as well.

Workaround: Use JetPack for now which allows installing both gstreamer 0.10 as well as 1.0. http://developer.toradex.com/knowledge-base/installing-nvidia-jetpack-with-l4t-on-apalis-tk1

ELB-699FixedEject Feature for Mass Storage MissingColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30SATA, SDIO/SD/MMC, USBLowNo

Description: Hitting the eject button either in the PCManFM file manager (pcmanfm) or the Disks gnome-disk-utility tool (gnome-disks) fails as follows due to the eject command line tool being missing:
Error ejecting media
Error ejecting /dev/sda: Error spawning command-line 'eject "/dev/sda"': Failed to execute child process "eject" (No such file or directory) (g-exec-error-quark, 8) (udisks-error-quark, 0)

ELB-693FixedUnify Behaviour When Config Block Is MissingColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BootloaderLowNo

Description: Currently various things may fail or behave strangely on certain modules if the config block is missing. Unify that behaviour by e.g. rather not allowing use of any features (e.g. Ethernet, RNDIS) at all in this case.

Workaround: Use the 'cfgblock create' U-Boot command to restore the config block. Alternatively we implemented similar functionality into our Toradex Easy Installer.

ELB-675FixedSometimes the RTC Driver Recovers Invalid Date/Time from the External RTCApalis TK1RTCLowNo

Description: After the RTC has been under-powered, some RTC deliver invalid date/time. The external RTC currently shipped on Toradex evaluation boards has a oscillator fail bit which indicates when RTC does not contain a valid date/time.

ELB-671FixedFix Toradex NXP U-Boot Recipe to Work With PokyColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61BuildsystemLowNo

Description: Our 2016.11 U-Boot recipe in meta-toradex-nxp fails to build. - The RPM packaging errors out because the generated spec file contains a dash in the Release variable: Release: 2.7.2-gitr60021a4

Workaround: - Edit recipes-bsp/u-boot/u-boot-toradex_2016.11.bbappend so that the PR variable does not contain a dash ('-').

2.7b3 (Release date: 2017-06-30)
ELB-709FixedCPU Frequency on Colibri iMX7 Solo Scales up to 1GHz Outside of SpecColibri iMX7CPULowNo

Description: The i.MX 7Solo is only rated up to 800MHz, hence operating it at 1GHz is outside of the official specification. There have been no negative effects observed.

ELB-708FixedLoad Default USB Gadget Fails on Apalis iMX6 Quad 2GB IT and Apalis iMX6 Dual 512MBApalis iMX6USBLowNo

Description: USB Gadget schema fails to load on Apalis iMX6 Quad 2GB IT and Apalis iMX6 Dual 512MB modules which leads to RNDIS not working.

ELB-703FixedBoot From UBI Fails With UBI Init Error 22Colibri iMX7BootloaderLowNo

Description: When booting after flashing the root file system from within Linux (e.g. Toradex Easy Installer) booting fails with UBI init error 22.

ELB-695FixedSupport RS485 Enabled at Boot Time Device Tree PropertyColibri iMX7, Apalis iMX6, Colibri iMX6UARTLowNo

Description: In the 3.14 based kernels the device tree property "linux,rs485-enabled-at-boot-time" allowed to enable RS485 at boot time. This device tree property so far had no effect on 4.1 based releases.

Workaround: This is now implemented in our toradex_4.1-2.0.x-imx-next branch.

ELB-673FixedSometimes the RTC Driver Recovers Invalid Date/Time from the External RTCColibri VF50, Colibri VF61RTCLowNo

Description: After the RTC has been under-powered, some RTC deliver invalid date/time. The external RTC currently shipped on Toradex evaluation boards has a oscillator fail bit which indicates when RTC does not contain a valid date/time.

ELB-663FixedLVDS Device Tree Timings May Lead to Kernel CrashApalis iMX6LVDSLowNo

Description: Specifying display timings in device tree and only using minimal boot arguments (e.g. video=mxcfb3:dev=ldb,bpp=32) leads to a kernel crash.

ELB-661Fixedsdboot Using ext4 Rootfs FailsApalis TK1BootloaderLowNo

Description: Trying to sdboot from an ext4 rootfs fails due to us defaulting to ext3. While the downstream T20/T30 L4T kernel has issues with ext4 later TK1 L4T should work just fine with it.

Workaround: Just change the sdargs to ext4 as follows: setenv sdargs 'ip=off root=/dev/mmcblk1p2 rw rootfstype=ext4 rootwait'

ELB-657FixedImages: Configure systemd Without ACL SupportColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Using ACL with ubifs seems to increase the likelihood of filesystem corruption. Since ACL is an optional features and unlikely necessary on an embedded system switch ACL off.

ELB-654FixedImplement/fix wake up on CAN for modules with FlexCANColibri iMX7, Apalis iMX6, Colibri iMX6CANLowNo

Description: Wakeup on CAN does not work in suspend mode with FlexCAN with 4.1.39 kernel.

ELB-629FixedModule May Hang During Boot Upon Hardware ResetColibri T30, Apalis T30Bootloader, Kernel, Power ManagementLowNo

Description: Depending on its DVFS state right before hardware reset the Apalis/Colibri T30 module may hang during a subsequent boot. Software reset seems not affected.

Workaround: Either power-cycle or make sure you are running at a higher DVFS state upon hardware reset. A fix for this called 'apalis/colibri_t30: improve vdd core pmic handling' may be found on our U-Boot 2016.11-toradex-next branch.

2.7b2 (Release date: 2017-04-10)
ELB-1089FixedUBIFS Issue ubifs_read_node: bad node type (255 but expected 3)Colibri iMX7FlashMediumNo

Description: Using UBIFS rootfs with extended attributes (xattr, by default used in the Toradex BSP) might cause file system corruptions and lead to an unbootable system. Affected versions:
Colibri_iMX7_LinuxImageV2.6.1Beta1_20160929
Colibri_iMX7_LinuxImageV2.6Alpha1_20160315
Colibri_iMX7_LinuxImageV2.6Beta2_20160701
Colibri_iMX7_LinuxImageV2.7Beta1_20170112

ELB-652FixedGPIO Tool: Fix Pinmuxing for NANDF_D4 (Apalis iMX6) and Apalis GPIOs (Apalis TK1)Apalis iMX6, Apalis TK1GPIOLowNo

Description: Apalis iMX6: The gpio-tool can not read or change the current pinmuxing of the NANDF_DATA4 pin but rather the SD4_DAT6 pin got changed instead. Apalis TK1: Some of the Apalis GPIOs were not accessible with the gpio-tool.

Workaround: Don't use the gpio-tool for pin NANDF_DATA4 on Apalis iMX6.

ELB-648FixedRegression: Poweroff when PoweroffApalis iMX6, Colibri iMX6Kernel, Power ManagementLowNo

Description: Since the move to the toradex_4.1-2.0.x-imx kernel poweroff fails powering off the PMIC once Linux reached halt.

Workaround: One could poweroff the carrier board by using a GPIO. http://developer.toradex.com/knowledge-base/gpio-(linux)#GPIO_PowerOff

ELB-639FixedPotential Systemd Hang on First BootColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Systemd may hang upon first boot due to certain services like run-postinsts and opkg-configure triggering a configuration reload later causing dynamic device services like the dev-ttyS0 one to hang.

Workaround: A fix has been implemented in our -next branch.

ELB-637FixedModules May Hang During RAM InitialisationColibri VF50, Colibri VF61Bootloader, RAMLowNo

Description: A few Colibri VF50/VF61 (IT) modules flashed with our latest beta BSP release V2.7Beta1_20170112 may hang during DRAM initialization (e.g. right after printing DRAM:). Attempting recovery with that same beta release will likewise fail.

Workaround: This is a software regression in U-Boot. Either compile U-Boot from our -next branch or use our latest stable BSP release V2.5_20151216 which has been fully validated & verified and does not exhibit this issue.

ELB-635FixedModule May Draw More PowerColibri T20Graphics, KernelLowNo

Description: Colibri T20 modules may draw more power be it during regular operation or in suspend.

Workaround: This issue is related to the 'Module May Hang During Boot if HDMI is not Connected' one whose fix can be found on the tegra-next branch of our linux-toradex Linux kernel repository: http://git.toradex.com/cgit/linux-toradex.git/log/?h=tegra-next

ELB-627FixedHDMI Hot-Plugging Fails Configuring Desktop OutputApalis TK1, Colibri T20, Colibri T30, Apalis T30HDMILowNo

Description: The udev rule /etc/udev/rules.d/hdmi.rules which should take care of this now fails with exit code 1. It looks like the RUN part of that rule should be reworked into its separate unit file to be spawned using SYSTEMD_WANTS.

Workaround: Manually call xrandr to get the desired effect.

ELB-620FixedAdapt Wrap-up Script for Colibri iMX6Colibri iMX6BuildsystemLowNo

Description: The wrap-up script in the Toradex Easy Installer Colibri iMX6 V2.7 Beta 1 image does not allow to flash Colibri iMX6 modules.

ELB-618FixedCPU & GPU Thermal Throttling Not WorkingApalis TK1CPU, Device Tree, Graphics, Kernel, Power Management, Temperature SensorLowNo

Description: CPU and GPU thermal throttling is not working which can be seen from /sys/kernel/debug/tegra_throttle/ being empty.

Workaround: Find the fix on our -next branch.

ELB-615FixedU-Boot: USB Host Mode Not WorkingColibri iMX7Bootloader, USBLowNo

Description: In the U-Boot version 2016.11 as shipped with our BSP V2.7 beta 1 the USB host mode initialisation (usb start) returns "Port not available." on both ports. This issue has been fixed and is available on our -next branch.

ELB-601FixedUpdate Meta-Angstrom to Latest Resulting in Using Linaro GCC 6 CompilerColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Recently Ångström switched to using the gcc 6 compiler in their 2016.12 aka morty branch. Update meta-angstrom to latest in order for us to also make use of the Linaro gcc 6 compiler.

ELB-598FixedSometimes the RTC Driver Recovers Invalid Date/Time from the External RTCColibri iMX7, Apalis iMX6, Colibri iMX6RTCLowNo

Description: After the RTC has been under-powered, some RTC deliver invalid date/time. The external RTC currently shipped on Toradex evaluation boards has a oscillator fail bit which indicates when RTC does not contain a valid date/time.

ELB-590FixedNo Longer Spawn getty on USB Serial GadgetColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61UARTLowNo

Description: On modules with newer kernels we set up a composite USB gadget with an RNDIS and a ACM USB endpoint providing a virtual Ethernet and serial link on the USB client port. Currently for Colibri VF a getty is spawned on the serial link giving you a login console on that connection. All other modules do not spawn a getty. We no longer spawn a getty on any module since some host platforms do have issues with composite USB gadgets.

Workaround: Please have a look at the following article on our developer website for more information: http://developer.toradex.com/knowledge-base/usb-device-mode-(linux)

ELB-572FixedUBI/UBIFS Issues on Colibri VF50/VF61: Crash During Filesystem Recovery After an Unexpected Power CutColibri VF50, Colibri VF61FlashMediumNo

Description: On Colibri VF50/VF61 in situations with frequent unexpected power-cuts there is a possibility of filesystem getting corrupted.

Workaround: Use a Read-Only Root Filesystem.

ELB-545FixedKernel Boot-up Issue Using PREEMPT_RT with Linux 4.4.21 on Colibri VF61Colibri VF61KernelLowNo

Description: Using PREEMPT_RT patch with Linux 4.4.21 on Colibri VF61 results in a freeze at boot time.

Workaround: Disable serial console either via kernel boot arguments or kernel configuration (CONFIG_SERIAL_FSL_LPUART_CONSOLE).

ELB-518FixedU-Boot: Support Elf File Format for Cortex-M4 FirmwaresColibri iMX7, Colibri VF50, Colibri VF61BootloaderLowNo

Description: The elf file format is supported by most commercial and free development environments and provides a standardized header for crucial information such as load address and entry point.

ELB-501FixedModule May Hang During Boot if HDMI is not ConnectedColibri T20Graphics, KernelLowNo

Description: Colibri T20 modules may hang during boot if HDMI is not connected.

Workaround: The fix for this issue may be found here: http://git.toradex.com/cgit/linux-toradex.git/commit/?h=tegra&id=943dd8a82f13c2e31a7f243bb15ae64edf45b7fa

ELB-477FixedSDIO Lock-upApalis TK1Kernel, SDIO/SD/MMC, Wi-FiLowNo

Description: Testing various SDIO based Wi-Fi solutions we observed it to completely lock-up the system.

Workaround: Find the following commit fixing this: http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_tk1_l4t_r21.5&id=20e255fde2d32d8bccd9e589fad4a2f663fcfb3a

ELB-447FixedFramebuffer Boot Configuration Integration MissingApalis TK1LVDSLowNo

Description: The frame buffer boot configuration integration via kernel command line is still missing.

Workaround: The LVDS configuration is currently hard-coded here: http://git.toradex.com/cgit/linux-toradex.git/tree/arch/arm/mach-tegra/panel-c-lvds-1366-14.c?h=toradex_tk1_l4t_r21.5#n322

ELB-397FixedTimeout Waiting for dev-ttys0.device on First BootApalis T30BuildsystemLowNo

Description: Rarely a timeout waiting for dev-ttys0.device on first boot has been observed.

Workaround: Just power-cycle again.

V2.7 Beta 1 (Release date: 2017-01-13)
Known Issue for Colibri VF61: U-Boot 2016.11 Missing m4boot Command.
ELB-1499FixedSerial Console Output Hangs when Stressing UART using DMAColibri VF50, Colibri VF61DMA, UARTLowNo

Description: When using UART with DMA it can lock up the UART sending path. The serial console might lock up completely.

Workaround: Disable DMA for UART.

ELB-597FixedSysV Initscript Interference at Times Causing Networking Subsystem not to StartColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: With the move to morty all SysV initscripts have been installed which caused interference. This got fixed by finally getting rid of all SysV remnants.

ELB-574FixedEthernet Switch Requires the External Ethernet Port to be ConnectedColibri VF50, Colibri VF61Ethernet, KernelLowNo

Description: No more driver limitation requiring to have a valid Link on the external Ethernet port (FEC0) in order to send and receive frames from Linux.

ELB-563FixedUsing keypad driver causes kernel freeze on iMX7Colibri iMX7Kernel, Miscellaneous PeripheralsLowNo

Description: Using keypad driver causes kernel freeze on iMX7

Workaround: Use the generic GPIO driven matrix keyboard driver

ELB-558FixedSPI read issue when using multiple SPI_IOC_MESSAGEColibri VF50, Colibri VF61SPILowNo

Description: SPI read issue when using multiple SPI_IOC_MESSAGEs.

Workaround: Always use SPI_IOC_MESSAGE(1).

ELB-549FixedSD-card: 1-bit bus width operation not workingColibri VF50, Colibri VF61Kernel, SDIO/SD/MMCLowNo

Description: The SD card 1-bit operation mode, enabled by seeting the 'bus-width' property of the device tree 'esdhc' node to <1>, not work while using SD card. It was tested with Colibri VFxx.

ELB-541FixedAdjust X22 EvalLoc in GPIO Tool (formerly GPIOConfig) to Latest Colibri Evaluation Board V3.2 PinoutColibri iMX6, Colibri T20, Colibri T30GPIOLowNo

Description: The X22 pinout changed on the latest Colibri Evaluation Board V3.2. Showing the latest information is desirable as that is what a customer gets shipped if ordered now.

ELB-511FixedPCIe Clock and Reset May not Conform to SpecificationApalis T30PCIeLowNo

Description: Our current PEX 8605 errata workaround violates the PCIe clock and reset specification should no PCIe switch be present as e.g. the case on Ixora.

ELB-509FixedeMMC Partition Limited to 4GBApalis T30FlashMediumNo

Description: Currently our update.sh script limits the partition size to around 4GB by default so even after our automatic resizing only 4GB of the 8GB of available eMMC space on the Apalis T30 2GB can be used.

Workaround: Manually modify the EMMC_SIZE calculation for apalis-t30 in our update.sh script. Our upcoming Toradex Easy Installer will no longer suffer from this limitation.

ELB-508FixedUpdate Scripts Limits rootfs Size to around 5GB when using TFTPApalis iMX6, Apalis TK1, Colibri T30, Apalis T30FlashMediumNo

Description: Our current update procedure reads the rootfs payload in pre split files of 64 MB size. The number of chunks is limited to 89 resulting in a maximum size of 5.5 GB.

Workaround: - use the ums command in U-Boot to export the modules eMMC as a mass storage device. - deploy a minimum rootfs and install the 'big' payload after booting into Linux

ELB-507FixedUpdate Scripts Limits rootfs Size to 4GBApalis iMX6, Colibri iMX6, Apalis TK1, Colibri T30, Apalis T30FlashMediumNo

Description: Our current update procedure requires the rootfs payload to fit in one file on a FAT filesystem. This limits its usable size to 4GB.

Workaround: - use the ums command in U-Boot to export the module's eMMC as a mass storage device - deploy a minimum rootfs and install the 'big' payload after booting into Linux - update over tftp, but see http://developer.toradex.com/software/linux/linux-software/release-details?view=release-roadmap&&issue=21229

ELB-502FixedUsing Rpmsg Leads to Kernel CrashesColibri iMX7Miscellaneous PeripheralsLowNo

Description: Using rpmsg and exercising the memory subsystem leads to unrecoverable kernel crashes.

Workaround: Use "linux,usable-memory = <0x80000000 0xff00000>;" for iMX 7Solo or "linux,usable-memory = <0x80000000 0x1ff00000>;" for i.MX 7Dual in the device tree memory node.

ELB-497FixedeMMC Partition Limited to 8GBApalis TK1FlashMediumNo

Description: Currently our update.sh script limits the partition size to around 8GB by default so even after our automatic resizing only 8GB of the 16GB of available eMMC space can be used.

Workaround: Manually modify the EMMC_SIZE calculation for apalis-tk1 in our update.sh script. Our upcoming Toradex Easy Installer will no longer suffer from this limitation.

ELB-492FixedSSH X11 Forwarding is Disabled by DefaultColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30EthernetLowNo

Description: In later OE versions the default SSH config changed so that X11 forwarding is not allowed. $ ssh -X root@192.168.10.185 X11 forwarding request failed on channel 0

Workaround: Edit /etc/ssh/sshd_config to include X11Forwarding yes

ELB-490FixedResistive Touch Driver Crashing with Stuck Touch ScreenColibri VF50Resistive TouchLowNo

Description: Closing the touch device while the touchscreen locks the closing task and leads to a task blocked kernel message.

ELB-440FixedDHCP Server on USB RNDIS Announces Module as RouterColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30USBLowNo

Description: When connecting the module using USB device connection, the module provides an IP address via it's own DHCP server. The DHCP server uses DHCP Option 3 (Router) to announce itself as router which can lead to internet connection interruption on the host.

ELB-434FixedOE Build on Distro with GCC 6 Host ToolchainColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30BuildsystemLowNo

Description: Newer distros like e.g. Fedora 24 use GCC version 6 as the host (native) toolchain. Our jethro based Yocto project build is not able to build the needed native tools, among them the cross compiler on such distros.

Workaround: Use a lightweight container with an older distro as documented on our developer website.

ELB-420FixedMove to GTK+ 3 in Demo ImageColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Apalis TK1, Colibri T20, Colibri T30, Apalis T30Buildsystem, GraphicsLowNo

Description: OE migrated the sato image to GTK+ 3. This includes pcman-fm with its libfm. As lxpanel is using libfm we have to follow here or provide our own pcman-fm/libfm recipes. If we move to GTK+ 3 I guess we should do it with all GTK+ based software. e.g all of lxde/lxdm (which may have some issues), the GPIOconfig tool and tegrastats-gtk.

V2.6.1 Beta 2 (Release date: 2016-11-22)
This is a release for Apalis TK1 2GB V1.1A only. The January 2017 release supporting all platforms (iMX6, iMX7, VFxx, T20, T30, TK1) will follow later as V2.7 Beta 1.
ELB-570FixedPCIe Clock and Reset May not Conform to SpecificationApalis TK1PCIeLowNo

Description: Our current PEX 8605 errata workaround violates the PCIe clock and reset specification should no PCIe switch be present as e.g. the case on Ixora.

Workaround: http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_tk1_l4t_r21.5&id=3e2259b04c2e2c029f742e9dda06a3a2739977d4

ELB-569FixedUpdate Source MirrorApalis TK1BuildsystemLowNo

Description: As that whole source mirror stuff has been introduced rather haphazardly whoever did that also failed maintaining/updating it since V2.5 e.g. http://sources.toradex.com/V2.5/. The wohle process around this is currently unclear.

Workaround: http://git.toradex.com/cgit/meta-toradex-demos.git/commit/?h=jethro&id=a6c6fa422e9cf9586e0eb8aba40e0460513edf58

ELB-489FixedUse Different GPIO for SD1_CD# (MXM Pin 190) on Apalis TK1 V1.1Apalis TK1Bootloader, Kernel, SDIO/SD/MMCLowNo

Description: The GPIO used on MXM Pin 190 on Apalis TK1 V1.0 modules cannot be used correctly. We therefore changed to another GPIO in our V1.1 of the Apalis TK1 module.

Workaround: http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_tk1_l4t_r21.5&id=b205234f92db5980ca374de65408f81f6dcf37d8

ELB-445FixedResolve Apalis vs. Jetson TK1 Performance DiscrepancyApalis TK1CPU, Kernel, Power Management, Temperature SensorLowNo

Description: VisionWorks demo achieves 10FPS on Apalis TK1 & 30FPS on Jetson TK1. Please identify the cause and resolve it.

Workaround: Fixed by a combination of Norrin soctherm and Laguna cl-dvfs just like used on Jetson TK1: http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_tk1_l4t_r21.5&id=3c204d1590b9fcead7169c7f066f6918bcbde55f

V2.6.1 Beta 1 (Release date: 2016-10-01)
ELB-482FixedFlashing Module Using a U-Boot Loaded via USB FailsColibri iMX7BootloaderLowNo

Description: Flashing module using an U-Boot loaded via USB fails.

Workaround: Set "soc" environment variable to imx7d or imx7s (depending on your module) before executing the update commands.

ELB-480Fixed100mW Power Saving by Changing Default Settings of Multiplexed Pins of Camera InputColibri T30, Apalis T30BootloaderLowNo

Description: Changing the default settings of multiplexed pins of the camera input allows saving up to 100mW of power.

ELB-476FixedGstreamer Hardware Accelerated Video Format Conversion, Interpolation, Rotation and Scaling Plugin Missing (nvvidconv)Apalis TK1DSI, HDMI, LVDS, Video CodecsLowNo

Description: Currently NVIDIA's proprietary hardware accelerated Gstreamer plug-in nvvidconv is missing from our Embedded Linux BSP release.

Workaround: You may use either NVIDIA's L4T directly or at least specific Gstreamer plug-ins therof: http://developer.toradex.com/knowledge-base/installing-nvidia-jetpack-with-l4t-on-apalis-tk1

ELB-474FixedUsing Colibri iMX7S Freezes when Using ViolaColibri iMX7RTCLowNo

Description: Using Colibri iMX7S freezes when using Viola. Could be a boot rom issue.

Workaround: Disable SNVS RTC in the device tree.

ELB-470FixedFix Broken Suspend/Resume on VybridColibri VF50, Colibri VF61Power ManagementLowNo

Description: Suspend/resume on Vybrid is currently broken.

ELB-469FixedRpmsg does not Work when Using U-Boot to Start FreeRTOSColibri VF61KernelLowNo

Description: When booting the M4 core using U-Boot (m4boot) rpmsg seems not to work (the kernel module loads but the initial test message does not seem to arrive/be recognized at the FreeRTOS side).

Workaround: Use the remoteproc method to boot the M4 core.

ELB-466FixedSupport missing BL_ON GPIO controlColibri iMX7GPIOLowNo

Description: BL_ON GPIO control is currently missing.

ELB-453FixedLoading Default USB Gadget Schema FailsColibri iMX7USBLowNo

Description: Even if a USB controller is in peripheral mode, loading the USB Gadget schema fails with "Failed to start Load default USB gadget schema g1.schema.".

Workaround: Remove the command (ExecStartPost) copying the serial-number to the USB Gadget configuration in /etc/systemd/system/multi-user.target.wants/usbg.service.

ELB-450FixedBug in the Parity Control of the Vybrid lpuart DriverColibri VF50, Colibri VF61UARTLowNo

Description: There was a bug in the parity control of the Vybrid lpuart driver.

ELB-446FixedMissing RS485 HandlingApalis iMX6, Colibri iMX6UARTLowNo

Description: Our latest kernel is missing RS485 handling e.g. to use the RTS (CTS) output to control a RS485 transmitter.

Workaround: You may find the following commit from our older Linux kernel 3.10.17 as deployed in our embedded Linux BSP V2.4 Beta 1 (May 18, 2015) useful: http://git.toradex.com/cgit/linux-toradex.git/commit?h=toradex_imx_3.10.17_1.0.0_ga&id=82cf64948ddab0360fab876ee321b6191ed7258a

ELB-432FixedHigh CPU Usage if no HDMI Screen ConnectedApalis TK1Graphics, HDMI, LVDSLowNo

Description: If no HDMI screen is connected pcmanfm will consume 100% CPU.

Workaround: Removing the '/usr/bin/xrandr --output LVDS-0 --off' line from /etc/xdg/lxsession/LXDE/autostart works around this issue.

2.6 Beta 3 (Release date: 2018-02-01)
This is a maintenance release for Apalis T30, Apalis iMX6, Colibri T30 and Colibri iMX6 only. This is a meta-data only release.
ELB-768FixedSD Card Not Working When Running V2.6 on Latest Colibri iMX6 V1.1A ModulesColibri iMX6Kernel, SDIO/SD/MMCLowNo

Description: Unfortunately, the older Linux kernel 3.14.52 as used in V2.6 does disable the SD card power rail VGEN3 upon boot which is reported as follows:
VGEN3: disabling
Subsequent SD card operation fails as follows:
mmcblk1: error -110 sending status command, aborting

Workaround: Please find an updated device tree as per the following commit:
http://git.toradex.com/cgit/linux-toradex.git/commit/?h=toradex_imx_3.14.52_1.1.0_ga&id=7659fe414d37861050ec909bb2d27c4bfca87d27

V2.6 Beta 2 (Release date: 2016-07-01)
ELB-421FixediMX6 Modules don't Boot at Chip Temperatures of 80°C or HigherApalis iMX6, Colibri iMX6BootloaderLowNo

Description: u-boot reads the chip temperature and doesn't continue to boot if it's above 80°C. That doesn't make sense for industrial temperature range modules.

ELB-412FixedLinux Freezes when using FreeRTOS on Cortex-M4Colibri iMX7KernelLowNo

Description: Despite removing the conflicting UART2 Linux freezes on startup.

Workaround: None.

ELB-411FixedApalis iMX6 and OV5640 MIPI CameraApalis iMX6Camera Parallel InterfaceLowNo

Description: On the BSB V2.6 Beta1 an OV5640 MIPI Camera does no longer work out of the box. This is caused by a driver having its compatible string changed.

Workaround: Correct the compatible string in the device tree.

ELB-403FixedFlorence On-Screen Keyboard not Showing Labels on Special KeysColibri iMX7, Apalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Colibri T20, Colibri T30, Apalis T30Miscellaneous PeripheralsLowNo

Description: The labels on special keys such as caps lock, enter or tab are missing.

Workaround: A fix is already available on the V2.6-next Meta-Toradex branch.

ELB-401FixedColibri iMX6DL RAM Size MissconfigurationColibri iMX6RAMLowNo

Description: On the Colibri iMX6DL the RAM configuration is not patched correctly causing only 256MB aka half of the RAM being available.

Workaround: A fix is already available on the 2015.04-toradex-next U-Boot branch.

ELB-400FixedPotential Gstreamer Freeze on Generating Initial DatabaseApalis iMX6, Colibri iMX6MultimediaLowNo

Description: Gstreamer may freeze when generating its initial database on some modules resulting in the following error message: (gst-plugin-scanner:683): GLib-GObject-WARNING **: cannot register existing type 'GstImxCompositorPad'

Workaround: The following gets you around this: mv /usr/lib/libgstimxcompositor.so.0.12.0 /usr/lib/libgstimxcompositor.so.0.12.0.orig gst-inspect-1.0 mv /usr/lib/libgstimxcompositor.so.0.12.0.orig /usr/lib/libgstimxcompositor.so.0.12.0 Alternatively one may uninstall libgstimxcompositor0 as follows: opkg remove --force-depends libgstimxcompositor0

ELB-396FixedU-Boot on Colibri iMX7S Freezes when Executing 'usb start'Colibri iMX7Bootloader, USBLowNo

Description: The Colibri iMX7 Solo does only have one USB port. However the bootloader code of the Alpha1 release touches registers of the not available second USB port which leads to a freeze of U-Boot.

Workaround: None.

V2.6 Beta 1 (Release date: 2016-03-31)
ELB-368FixedSome Modules don't Boot Reliably Because of eMMC ConfigurationApalis iMX6, Colibri iMX6BootloaderLowNo

Description: A low percentage of modules don't boot reliably because of the bootrom not handling the eMMC correctly. This leads to non booting modules. Using reset solves the problem, a power-cycle mostly works too.

Workaround: Using different i.MX6 fusing options and eMMC configurations seems to solve the problem. For the time being you may evaluate this as described in the following article on our developer website: http://developer.toradex.com/software-resources/arm-family/linux/linux-booting#eMMC_Fast_Boot_Mode_ApalisColibri_iMX6

ELB-309FixedUSB Host does not Work after using LPSTOP Suspend ModeColibri VF50, Colibri VF61Power Management, USBLowNo

Description: The USB host (USBH) bus disconnects all devices after resuming from LPSTOP (suspend-to-memory) low-power mode.

Workaround: Use unbind before entering suspend and (re)bind the driver after suspend. This method has been implemented as a systemd service (usb-resume.service). Alternatively, use standby mode instead.

V2.5 Beta 3 (Release date: 2015-12-15)
ELB-333FixedEthernet PHY State is not Reset on Soft-RebootColibri iMX6EthernetLowNo

Description: When rebooting the system using software reboot Linux can leave the PHY in an undefined state (e.g. down) in which case Ethernet may not work in U-Boot unless a hardware reset is performed.

ELB-329FixedU-Boot mmc partconf Command IssueColibri iMX6Bootloader, Flash, SDIO/SD/MMCMediumNo

Description: We are currently chasing a strange race condition/sequencing issue concerning eMMC seen on certain Colibri iMX6 modules. An affected module will continue to boot off the regular eMMC user area while our update scripts will update the one located in the boot area which may lead to quite some confusion/inconsistencies.

Workaround: Just manually enter the following from within U-Boot for now and you should be fine again:
Colibri iMX6 # mmc partconf 0 1 1 0
More information about this is available here: http://developer.toradex.com/software-resources/arm-family/linux/linux-booting#eMMC_Hardware_Boot_Area_Partitions_ApalisColibri_iMX6_and_ApalisColibri_T30

V2.5 Beta 2 (Release date: 2015-11-06)
ELB-1451FixedPMIC RTC AccuracyColibri T20RTCLowNo

Description: The PMIC RTC does not meet the expected accuracy.

Workaround: If possible use the external RTC provided by the carrier board.

ELB-315FixedVarious UBIFS Related ErrorsColibri VF50, Colibri VF61FlashMediumNo

Description: Various UBIFS errors reported by Linux kernel especially while booting. Some errors might lead to root file system not being mountable.

ELB-312FixedUSB Detection Issue & Low Transfer SpeedColibri T30, Apalis T30USBLowNo

Description: USB detection may fail especially on the OTG port plus the transfer speed may be rather low.

Workaround: Reverting http://git.toradex.com/cgit/linux-toradex.git/commit/?h=tegra&id=629b91fa046df5213ed3312d2e2b8683e6bdd70c helps but reintroduces issue #6422.

ELB-308FixedStuck in U-Boot SPL upon Watchdog ResetColibri T20Bootloader, Power Management, WatchdogLowNo

Description: Upon boot after a watchdog reset the U-Boot boot loader gets stuck in SPL. Only a full power-cycle will recover the system.

Workaround: Our stable Embedded Linux BSP V2.3 from 20150320 does not exhibit this issue.

ELB-301FixedRare I/O Error on eMMCColibri T30, Apalis T30SATA, SDIO/SD/MMCLowNo

Description: Very rare occurrence of eMMC issues as shown below in combination with extensively heavy SATA and/or SD card stress testing: I/O error, dev mmcblk0

Workaround: Avoid extensively heavy SATA and/or SD card stress testing. Usually power-cycling brings the system back to life.

ELB-297FixedSlow Memory CopyColibri T30, Apalis T30RAMLowNo

Description: Libc based memory copy recently slowed down by almost a factor of two.

Workaround: Use one of our V2.1 based BSPs which did not exhibit this issue.

ELB-296FixedSoftware Reboot Lock-upColibri T20KernelLowNo

Description: Rarely after about 500 software reboot cycles the module locks up during boot.

Workaround: Just power-cycle again.

ELB-226FixedRace Condition in USB OTG Device/Host Detection on IxoraApalis T30USBLowNo

Description: On Ixora with set jumper JP2 the lower X8 USB host port (shared with the X9 micro USB port) is not reliably working. There seems to be a race condition in NVIDIA's USB OTG driver concerning the loading and binding of the USB device gadget driver which prevents Apalis USBO1 being operational in host mode.

Workaround: Disconnecting the USB device, removing the jumper JP2, connecting a USB micro cable to a PC, disconnecting the same again, jumpering JP2 again and connecting the USB device again should remedy the issue. Alternatively booting with JP2 removed and only connecting JP2 after boot also works.

V2.4 Beta 1 (Release date: 2015-05-18)
ELB-283FixedUSB Host in U-Boot does not Work on Iris Carrier BoardColibri VF50, Colibri VF61Bootloader, USBLowNo

Description: The U-Boot boot loader does not switch on the power on the USB host port. This makes the USB host port not working by default on the Viola and Iris Carrier Boards.

Workaround: Use U-Boot's GPIO functionality to switch on the USB host power (GPIO 83).

ELB-275FixedFloating Point Exception using nv_omx_h264encColibri T30, Apalis T30Video CodecsLowNo

Description: One might get the following floating point exception when using nv_omx_h264enc either trying to transcode MPEG transport streams or encode video stream coming from a Gstreamer appsrc: +NvxVideoEncoderSetNvMMAttributes-NvxVideoEncoderSetNvMMAttributesFloating point exception

Workaround: If you experience this exact issue please downgrade to our V2.3 Beta 3 (October 31, 2014) release for now. We opened a ticket with NVIDIA and are working with them to get this resolved as soon as possible.

ELB-269FixedRare I/O Error on eMMCColibri T30, Apalis T30Flash, Kernel, SDIO/SD/MMCMediumNo

Description: Rare occurrence of eMMC issues as shown below can lead to read-only root file system or even non-booting systems: I/O error, dev mmcblk0

Workaround: Usually power-cycling brings the system back to life. The tegra-next branch of our Linux kernel source repository contains a fix for this.

ELB-152FixedDifferent Mountpoint Names when Mounted at Boot vs. Mounted at Runtime / with DiskutilityApalis iMX6, Colibri iMX6, Colibri VF50, Colibri VF61, Colibri T20, Colibri T30, Apalis T30SATA, SDIO/SD/MMC, USBLowNo

Description: Mountpoint names are different when mounted at boot vs. mounted at runtime / with diskutility.

Workaround: None.

V2.3 Beta 7 (Release date: 2015-02-03)
ELB-272FixedUART Without DMA Leads to Freeze/Lockup During Boot-upColibri VF50, Colibri VF61UARTLowNo

Description: Using UART on Vybrid without DMA can lead to boot freezes when characters have been received during startup.

Workaround: Enable DMA mode to avoid this problem completely or avoid character transmission to the module during startup.

ELB-271FixedKernel Freeze on Startup (in V2.3 Beta 5)Colibri VF50KernelLowNo

Description: Sometimes the kernel freezes right on startup. The last message being shown in the serial console is "Starting kernel ...".

ELB-264FixedDefault SPI Peripheral Driver DSPI not WorkingColibri VF50, Colibri VF61SPILowNo

Description: SPI by using Vybrid's DSPI peripheral does not work as intended.

ELB-172FixedAC97 Suspend SupportColibri VF61Analog Audio, Resistive TouchLowNo

Description: Currently there are kernel errors after suspend to RAM when using AC97.

V2.3 Beta 5 (Release date: 2014-12-19)
ELB-255FixedX-Server Rotation BrokenColibri T20, Colibri T30, Apalis T30Graphics, HDMI, LVDS, RGB, VGALowNo

Description: XRandR based rotation as described on the following article on our developer website is broken since our V2.1 releases: http://developer.toradex.com/knowledge-base/x-server-%28linux%29#Rotation

Workaround: Please revert to one of our older V2.0 based releases for now.

ELB-239FixedUnreliable RNDIS/g_ether over USB ClientColibri VF50, Colibri VF61USBLowNo

Description: The USB client implementation is unreliable and freezes communication from time to time (e.g. when using the USB client driver RNDIS/g_ether).

ELB-236FixedMemory Leak during Gstreamer Video PlaybackColibri T30, Apalis T30MultimediaLowNo

Description: Several hours of gstreamer streaming aborts due to memory leak in nvvidconv gstreamer plugin.

Workaround: Under certain circumstances using an older NVIDIA L4T R16.3 based BSP might be feasible until NVIDIA releases a fix.

ELB-103FixedUSB Low-Speed IssueColibri T30, Apalis T30USBLowNo

Description: Certain low-speed USB devices are not detected correctly when plugged into a running system.

Workaround: Use a hub or ensure device is connected before power up. A driver fix will be made to correct this behaviour.

V2.3 Beta 3 (Release date: 2014-10-31)
ELB-234FixedAnalogue Audio Codec Disappearing during RebootColibri T30, Apalis T30Analog AudioLowNo

Description: Analogue audio codec disappearing during reboot particularly if previously used for audio recording.

Workaround: Power-cycling should help. Alternatively wait for us to backport respective Linux kernel driver fixes.

V2.3 Beta 2 (Release date: 2014-09-03)
ELB-227FixedPCIe and with it Gigabit Ethernet Rarely Unavailable after BootApalis T30Ethernet, PCIeLowNo

Description: PCIe is rarely unavailable after Boot on the Apalis T30 module indicated by the following kernel message(s) during boot: 'PCIE: port 0: link down, ignoring', 'PCIE: port 1: link down, ignoring' and/or 'PCIE: port 2: link down, ignoring'. Gigabit Ethernet is also affected by this issue as its controller chip is connected through PCIe indicated by the following missing kernel message during boot: 'igb 0000:01:00.0: Intel(R) Gigabit Ethernet Network Connection' resp. 'igb 0000:07:00.0: Intel(R) Gigabit Ethernet Network Connection'. We are working together with NVIDIA to solve this issue as it seems to be a hardware issue of the PCIe controller in the T30 SoC.

Workaround: Currently the only thing known to help is power-cycling or sometimes also doing a reset. As the issue is probably dependant on operating conditions such as temperature varying this might also help. We are working together with NVIDIA to find a good software workaround for this issue.

V2.3 Beta 1 (Release date: 2014-08-04)
ELB-238FixedPWM Output do not WorkColibri VF50, Colibri VF61PWMLowNo

Description: The PWM other than PWM do not work.

ELB-237FixedRare I/O Error on eMMCApalis T30Flash, Kernel, SDIO/SD/MMCMediumNo

Description: Rare I/O error observed on eMMC which might prevent successful boot.

Workaround: Power-cycle usually helps. Alternatively use a later custom kernel or await our official release thereof.

ELB-235FixedInternal RTC not AccurateColibri VF50, Colibri VF61RTCLowNo

Description: Vybrid's internal RTC is not as accurate as expected (~2% drift).

Workaround: Update time regularly using NTP or use external RTC (/dev/rtc1).

ELB-197FixedDisabling HDMI Display Controller via modedb Kernel ArgumentsColibri T20, Colibri T30, Apalis T30Graphics, HDMILowNo

Description: Currently when disabling the HDMI display controller by specifying the modedb option 'video=tegrafb1:off' from within U-Boot as Linux kernel boot argument the Tegra X driver complains with 'failed to initialize the display controller library' and refuses to start X at all.

Workaround: As a workaround one can remove the HDMI display controller's device node 'rm /dev/tegra_dc_1' and restart LXDM 'systemctl restart lxdm' from within Linux.

ELB-196FixedU-Boot SD Boot EnvironmentColibri T20Bootloader, SDIO/SD/MMCLowNo

Description: Currently if doing SD boot the U-Boot environment is not preserved on the SD card.

Workaround: Build latest U-Boot sources from git.toradex.com.

ELB-195FixedU-Boot TFTP/NFS Booting via USB-to-EthernetColibri T30, Apalis T30Bootloader, EthernetLowNo

Description: Currently NFS booting mostly fails due to some timeouts in the Ethernet resp. USB stack.

Workaround: Build latest U-Boot sources from git.toradex.com.

ELB-134FixedAudio Capture IssueColibri T20Analog AudioLowNo

Description: Audio capture can stall causing stutter in captured stream.

Workaround: None. Await for update to driver.

ELB-124FixedHDMI Audio IssueColibri T30HDMILowNo

Description: HDMI audio has an incorrect sampling frequency so the recorded audio stream is distorted.

Workaround: None. Await updated driver.

V2.2 Beta 1 (Release date: 2014-06-03)
ELB-188FixedNon-monotonic Increasing sched_clockColibri VF50, Colibri VF61RTCLowNo

Description: The main scheduling clock is non-monotonic increasing, which leads to time gaps in kernel log output.

Workaround: So far we haven't noticed any issues because of that. The real-time clock works as expected.

ELB-169FixedBoot Freeze after RTC DetectionColibri VF50, Colibri VF61UARTLowNo

Description: From time to time boot-up hangs just after RTC detection (or nearby). Usually boot-up can be unfrozen by sending a character.

Workaround: This issue is related to UART. If the UART is not connected, the issue doesn't appear.