The Raspberry Pi boot-firmware files and a brief explanation of what they do. These firmware files can be found on your /boot partition.
bootcode.bin - This file is the 2nd stage bootloader containing the GPU's boot code.
start*.elf - These files determine how much of the available memory is assigned to the GPU
fixup*.dat - Additional files to configure the SDRAM partition between the GPU and the CPU
config.txt - (optional) This file is read by the GPU at boot time and controls video modes, clocking and boot options. Think of it as the system "BIOS". For more details see http://elinux.org/RPi_config.txt
cmdline.txt - This is the kernel's command line. You can set kernel boot parameters by editing this file.
kernel.img, System.map - kernel.img is the Linux kernel, and System.map is the kernel's symbol table.
* When updating your firmware you just need to copy the bootcode.bin, plus all start*.elf and fixup*.dat files to your /boot partition.
The SARPi project forum. For anything and everything relating to Slackware ARM on a Raspberry Pi 1, 2, and 3. This forum is NOT a replacement or substitute for the Slackware (ARM) forums on Linux Questions website! Please try to seek help there first about any issues you may be experiencing, or question you might have, before posting on here.
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