June 2017
Intermediate to advanced
478 pages
13h 14m
English
Content preview from Mastering Embedded Linux Programming - Second Edition
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Falcon mode
We are used to the idea that booting a modern embedded processor involves the CPU boot ROM loading an SPL, which loads u-boot.bin which then loads a Linux kernel. You may be wondering if there is a way to reduce the number of steps, thereby simplifying and speeding up the boot process. The answer is U-Boot Falcon mode. The idea is simple: have the SPL load a kernel image directly, missing out u-boot.bin. There is no user interaction and there are no scripts. It just loads a kernel from a known location in flash or eMMC into memory, passes it a pre-prepared parameter block, and starts it running. The details of configuring Falcon mode are beyond the scope of this book. If you would like more information, take a look at doc/README.falcon ...
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