BSP Layers and Reference Images for Yocto Project Issue Tracker

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.

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.

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.

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.

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

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

Description: Add support for the Yavia Verdin Carrier Board

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

Description: USB RNDIS supports is getting deprecated [1], move USB Ethernet-over-USB functionality to USB NCM, updating libusbgx configuration. Starting with Windows 10 this USB protocol is also available in Windows and it has been available in Linux for a long time. [1] https://lore.kernel.org/all/20221123124620.1387499-1-gregkh@linuxfoundation.org/

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

Description: TF-A (ATF) updated to version `v2.6(release):lf_v2.6-g9202efc9aa`

Description: Update Downstream Kernel To LF5.15.52_2.1.0

Description: Some kconfig option required by some systemd functionality are missing in the kernel config, add those.

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

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.

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.

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.

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.

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

Description: Remove `toradex-fitimage.bbclass`, use standard OE kernel-fitimage.bbclass instead

Description: Spidev is no longer enabled on base dts file, add a device tree overlay to enable the functionality.

Description: Use MP3 audio codec for all the example test videos.

Description: Remove the code trying to set `read_ahead_kb` emmc queue parameter.

Description: Update Linux Kernel to 5.15-2.0.x-imx version, as included in NXP 5.15-2.0 BSP.

Description: Update U-Boot to NXP `imx_lf_v2022.04` version

Description: Remove `libsoc` deprecated package from tdxref image.

Description: Use random MAC addresses from the private IEEE range instead of `00:14:2d:ff:ff:ff` and `00:14:2d:ff:ff:fe` for the USB RNDIS ethernet interface

Description: Use LZ4 kernel compression algorithm instead of LZO.

Description: Update udev rules creating standard Toradex symlinks to work with newer kernels (up to Linux Kernel 6.0).

Description: DEFAULTTUNE set to armv8a-crypto from previous aarch64

Description: Support loading BSP image with overlapping kerneladdr/loadaddr as configured on BSP6 boot loader. (On our tdx reference images this is an issue only for i.MX 8* based SOMs).

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.

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.

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.

Description: Add mii-tool to the image

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

Description: Update to NXP released L5.4.70_2.3.7 (U-Boot)

Description: Update Kernel to NXP released L5.4.70_2.3.7

Description: Set analog audio output as default

Description: Add support for USB OTG

Description: Enable CONFIG_DYNAMIC_DEBUG Kernel Config

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

Description: Increase maximum loadable Kernel size to 64MB

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

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%.

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`)

Description: Add FIO, Flexible I/O tester (https://github.com/axboe/fio)

Description: Do not store u-boot environment during boot unasked

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

Workaround: None

Description: Update to latest kernel.org patch release and pull in latest patches from linux-imx 5.4.70_2.3.3 patch release.

Description: CMA memory allocation is a fixed value and takes up too much space on certain SKUs. Drop the configuration of the CMA in the device tree in favour of specifying it in the kernel config with a size of 256MB or 12% of total memory which ever is less.

Description: Drop support for the Verdin iMX8M Mini V1.0.

Workaround: Use BSP 5.1.0 (or the 5.2.0-devel-202102+build.7) for V1.0B modules.

Description: Support the Nuvoton NAU88C22YG audio codec found on the Verdin Development board V1.1A and later.

Description: An image for Apalis iMX8 contains in addition to the ones specific to Apalis iMX8 the specific ones for Apalis iM8X. While this does not hurt it might be confusing.

Workaround: -

Description: Change OpenEmbedded recipes from Toradex to fetch from https instead of git where possible.
In an approach to make it more user-friendly, especially for big company customers that do not allow git-protocol in their networks we decided to use https as a fetching source.
We are aware that we cannot do this for each and every layer but at least for ours we decided to switch from git to https.

Description: Due to the class "classes/image_type_tezi.bbclass" in "meta-toradex-bsp-common" setting the label to all upper-case "BOOT", and WIC images using all lower-case "boot", the /boot mounting may actually not work at all (given that an image got actually installed to eMMC using the Toradex Easy Installer prior to distrobooting from SD card and/or USB memory stick). However, rather than having the eMMC's boot partition mounted to /boot it would make much more sense to mount the resp. boot media's boot partition there.

Description: Update Linux kernel to new NXP L5.4.70-2.3.0 release.

Description: WIC images do not contain the device tree overlays. This affects users that boot from the SD card or USB sticks. See Boot From an SD Card / USB Stick / SATA drive for reference.

Workaround: Manually deploy them. See how-to on Deploying a Device Tree Overlay.

Description: We dropped support for fdt_fixup in favour of using device tree overlays.
https://developer.toradex.com/knowledge-base/device-tree-overlays-linux

Description: Use unified /dev/apalis-emmc symlinks for fw_env.config so we only need one config for all modules.

Description: Make sure to document on our developer website which display interfaces are used by default.

Description: Make sure the boot partition on eMMC-based modules is mounted consistently across all modules to /boot.

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

Description: Use eMMC Reset of the new Verdin iMX8M Mini V1.1A modules.

Description: Add support for new KSZ9131 PHY on V1.1 modules.

Description: Update developer website article about ADC.

Description: Add support for DHCP/TFTP boot via distroboot.

Description: Update the developer website documentation about BSP device tree overlay support.

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).

Description: Some defconfig and board names have changed with the move the later 2020.04 U-Boot as we did not mainline it the same way as it was in the downstream U-Boot. Let us clean this up and only use proper Toradex product names e.g. apalis-imx8, apalis-imx8x and colibri-imx8x.

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

Description: With the move to the NXP L5.4.24-2.1.0 BSP we will have all our downstream and mainline/upstream Linux kernels based on 5.4. Using 5.4 based backports with this does not make any sense so drop it.

Description: With this ticket the OpenEmbedded image names changed: console-tdx-image --> tdx-reference-minimal-image verification-tdx-image --> tdx-reference-multimedia-image graphical-tdx-image got deleted and QT5 was added to tdx-reference-multimedia-image.

Description: Add support for Verdin DSI to LVDS Adapter.

Description: Update graphics to the latest version from NXP.

Description: Create a new unified manifest repository called toradex-manifest for Embedded Linux BSP and TorizonCore.

Description: Add support for the I2S audio interface.

Description: Support graphics acceleration on Verdin iMX8M Mini

Description: Add support for DVFS

Description: The kernel for i.MX8 series based SoM is currently provided uncompressed, i.e. as an Image in the BSP. The Toradex Easy Installer now provides a gzip compressed kernel as part of its fit image. U-Boot uncompresses the kernel when loading the fit image Use also a compressed kernel in the BSP and evaluate what options we have to decompress in U-Boot.

Description: Create udev rules to symlink ADC devices.

Description: Name Wi-Fi interfaces consistently.

Description: Wi-Fi only works partially in access point mode.

Description: Add usbhubc to all our images and document its use.

Workaround: An OpenEmbedded recipe already exists which allows adding uhubctl to any custom image.
http://layers.openembedded.org/layerindex/recipe/85122/

Description: Update graphics to the latest version from NXP

Description: Update downstream kernel to the latest NXP BSP L4.14.98_2.3.0.

Description: Onboard Bluetooth is not fully validated and documented

Description: Add support for MIPI-CSI

Description: Add SDIO/SD Card Support

Description: Add support for DSI to HDMI Adapter

Description: Toradex Easy Installer is supported but not documented

Description: Add UART Support

Description: Add support for Ethernet in bootloader and kernel.

Description: It's not possible to enable ADC continuous conversion mode following our documentation steps.

Description: When switching from a monitor to another one with different timing and doing a reboot a warning with a stack trace on `drm_atomic_helper_wait_for_vblanks` could happen.

Description: U-Boot `ums` command complaints about `Failed to configure default pinctrl`

Workaround: No known issues because of this warning message.

Description: U-Boot included in BSP-6 does not support booting older BSP images neither from SD Card nor eMMC

Workaround: Update boot script from BSP-6

Description: With some external hardware combinations, the user could experience significant boot delays that are connected to the systemd-udev-settle.service being selected as a dependency for the rngd.service startup. One example of a hardware that could present this behavior is 3G modems.

Workaround: Masking the systemd-udev-settle.service should be enough to get boot times back to normal. Keep an eye on failures to start up the rngd.service as it depends on devices to be present when initialized.

Description: It is not possible to read the T-junction when temperature is lower than 10°C. `cat: /sys/devices/virtual/thermal/thermal_zone0/temp` returns "Resource temporarily unavailable"

Description: Later distros like Fedora 36 will fail to connect as follows unless the configuration is explicitly weakened: Unable to negotiate with 192.168.10.2 port 22: no matching host key type found. Their offer: ssh-rsa scp: Connection closed

Workaround: Put the following in your ~/.ssh/config below resp. host you are trying to connect to: PubkeyAcceptedAlgorithms +ssh-rsa HostkeyAlgorithms +ssh-rsa

Description: It is possible that the SPI Tx fails with `spi_imx 30830000.spi: I/O Error in DMA TX`. The issue is not systematic.

Description: One may easily flash any Toradex product's ConfigBlock into any module as there are currently no plausibility checks done if the configblock written with a USB barcode scanner. This scenario is very unlikely to happen with a Toradex customer.

Description: PWM_1 and PWM_2 gets its pwmchip instance number changed when turning on or off the HDMI overlay.

Workaround: Use a fixed Device Tree for production images according to https://developer.toradex.com/device-tree-customization. This way the issue will not appear.

Description: Receiving a packet from the SPI CAN Controller can take more than 1ms

Description: Provide proper vidargs for mainline 5.4 in BSP 4.0.0

Description: Add support for HDMI audio using Verdin DSI to HDMI Adapter

Description: Support initiating power-off, support switching carrier board power-off

Description: The default alsa configuration that's deployed by our builds gets changed at runtime as a result of which Verdin carrier board is being used. Because of this, our builds are not compatible with read-only rootfs.

Description: Second ethernet interface (FEC) can have some spurious link up/down events

Description: Kexec and Kdump is working for the kernel branch toradex_4.14-2.3.x-imx and was successfully tested for Colibri iMX7. This feature is not working anymore with the newest Kernel.

Description: Add support for QSPI