<ul><li>Das U-Boot, a well-known bootloader, celebrates its 25th anniversary this year.</li><li>The boot process of U-Boot involves steps from SoC power-on to launching the Linux initrd, with hardware-specific considerations.</li><li>Key stages include SoC BootROM execution, SPL loading, full U-Boot initialization, and Linux kernel boot with initrd.</li><li>Common pitfalls in the process include DRAM initialization issues, memory overlap, DTB mismatches, NAND boot problems, and secure boot challenges.</li></ul>

From Power-On to initrd with U-Boot

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