u-boot – Tarik Billa

what is the use of SPL (secondary program loader)

April 15, 2023 by Tarik

Let me explain it using OMAP platform as an example (just to provide some actual background rather than just theory or common knowledge). Take a look at some facts for starters: On OMAP-based platforms the first program being run after power-on is ROM code (which is similar to BIOS on PC). ROM code looks for … Read more

Image vs zImage vs uImage

January 4, 2023 by Tarik

What is the difference between them? Image: the generic Linux kernel binary image file. zImage: a compressed version of the Linux kernel image that is self-extracting. uImage: an image file that has a U-Boot wrapper (installed by the mkimage utility) that includes the OS type and loader information. A very common practice (e.g. the typical … Read more