On 22/2/20 1:45 am, G. S. Niteesh wrote: > Hi, > > This is regarding adding RPi support to the boot image generation tool. > > The boot process for Raspberry Pi is very unconventional. The GPU starts > first, initializes RAM, other hardware, loads the bootloaders and then starts > the ARM CPU. > > The minimum files that are required to boot an RPi are > bootcode.bin, startx.elf, fixup.dat, kernel.img, config.txt > There are also other variants of startx.elf and fixup.dat. > Please have a look > at https://www.raspberrypi.org/documentation/configuration/config-txt/boot.md > for information on the variants. > > From what I have tried on my Rpi3 model b v1.2 the minimum files that are > required are start_x.elf, fixup_x.dat, bootcode.bin, kernel.img, config.txt > But for this to work, we must add start_x=1 to config.txt because by default > start.elf is loaded.
I would have look at how the tool maps to RPi to know if it needs more work :) > > So, what should be the values for the first and second stages in > rtems-boot.ini > for Rpi? Would this be bootcode.bin? > And also wouldn't it be nice if we could add a files field, which will copy > the > specified files to the image? This would save a lot of typing in case of RPi Do you have an example? Chris _______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
