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Re:LibreRPi – open source replacements for RPi firmware by cleverca22 on Friday September 16, 2022 @05:50AM (#32864156)
the rpi-open-firmware codebase is going the route of doing as little as possible on the VPU, and giving the arm control fairly early

i found that a bit limiting, with the lack of threads/drivers/modularity

thats why i ported little-kernel, to get the same level of features threadx likely offered, and then be able to expand the feature-set far more

with the lk-overlay codebase, you can drive the 2d and 3d cores from the VPU

you can output ntsc or vga video

you can turn on the arm core and boot linux

and you can map /dev/fb0 on the video output

and there are various cpu-independent features in LK like tga image decoding

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