Using an imx8mm I need to boot the M4 as quickly as possible. Using u-boot scripting with a 0 autoboot abort delay gets me below 3 seconds but we need to get faster than that.
The plan is to open up u-boot to load and run the M4 immediately before the autoboot abort delay. Does anyone have any advice on going down this path?
TIA
The u-boot script doesn't run until after the autoboot abort option delay expires. Using this method takes 2+ seconds to get to the abort prompt plus any delay at the prompt before the command can start running. I need to boot the M4 before the prompt.