| Description |
| =========== |
| |
| The i.MX 8M family of applications processors based on Arm Corte-A53 and Cortex-M4 |
| cores provide high-performance computing, power efficiency, enhanced system |
| reliability and embedded security needed to drive the growth of fast-growing |
| edge node computing, streaming multimedia, and machine learning applications. |
| |
| Boot Sequence |
| ============= |
| |
| Bootrom --> SPL --> BL31 --> BL33(u-boot) --> Linux kernel |
| |
| How to build |
| ============ |
| |
| Build Procedure |
| --------------- |
| |
| - Prepare AARCH64 toolchain. |
| |
| - Build spl and u-boot firstly, and get binary images: u-boot-spl.bin, |
| u-boot-nodtb.bin and dtb for the target board. |
| |
| - Build TF-A |
| |
| Build bl31: |
| |
| .. code:: shell |
| |
| CROSS_COMPILE=aarch64-linux-gnu- make PLAT=<Target_SoC> bl31 |
| |
| Target_SoC should be "imx8mq" for i.MX8MQ SoC. |
| |
| Deploy TF-A Images |
| ----------------- |
| |
| TF-A binary(bl31.bin), u-boot-spl.bin u-boot-nodtb.bin and dtb are combined |
| together to generate a binary file called flash.bin, the imx-mkimage tool is |
| used to generate flash.bin, and flash.bin needs to be flashed into SD card |
| with certain offset for BOOT ROM. the u-boot and imx-mkimage will be upstreamed |
| soon, this doc will be updated once they are ready, and the link will be posted. |