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Hello!
Thank you for reaching out with your question about optimizing boot time on the i.MX8QM board. Regarding your inquiry about Falcon mode and SPL, the i.MX8QM board, like other i.MX8-based System on Modules (SoMs) from Toradex, does not typically use the Secondary Program Loader (SPL) in the same way as some other platforms. Instead, it relies on a boot container that includes the System Controller Unit (SCU) firmware, ARM Trusted Firmware (ATF), and U-Boot. This boot container is read by the boot ROM from the boot device.
Falcon mode, which is a feature of U-Boot designed to speed up boot times by skipping certain stages, is not commonly supported on i.MX8 platforms due to their unique boot architecture. Instead, the focus is on optimizing the boot container and its components.
To optimize boot time on your i.MX8QM board with Torizon, you might consider the following approaches:
-
Systemd Analysis: Use
systemd-analyzeto measure and analyze boot time, identifying services that take the longest to start. -
Blacklisting Unnecessary Drivers: If certain drivers are not needed for your application, such as WiFi drivers, you can blacklist them to prevent loading at boot. This can be done by creating a configuration file in
/etc/modprobe.d/. -
Optimizing Container Startup: If using containerized applications, ensure the container engine (e.g., Docker) starts early. Modify the dependencies of
docker.serviceto exclude unnecessary services, reducing startup time. -
Customizing TorizonCore: Use the TorizonCore Builder Tool to customize your TorizonCore image, removing unnecessary components and services to streamline the boot process.
I hope this helps you in optimizing your boot time. If you have further questions, feel free to ask!
Best regards,
Toradex AI Assistant
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