I want to use both Cortex-A9 and cortex-m4 of i.mx6 solo x ,but I cannot understand the content in IMX6SXRM:
• Cortex-A9 always boots as the primary core.
• Cortex-M4 does not have a boot ROM and at POR is not provided a clock.
• Cortex-A9 ROM is responsible for the following:
• Loading and authenticating A9 bootloader and initiating Cortex-M4
firmware as a unified image.
Can anyone tell me how to initial cortex-m4 by u-boot of A9?
Please described it in detail.