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Most Allwinner chips can run an entirely open-source stack and there's quite a few hobbyist-oriented boards out there based on them. (Technically the ROM bootlo
by makomk 11y ago
Most Allwinner chips can run an entirely open-source stack and there's quite a few hobbyist-oriented boards out there based on them. (Technically the ROM bootloader is closed source, but all it does is load your choice of bootloader into RAM and execute it. After that you have full control, including the ability to run code in TrustZone mode and on the supervisor CPU core if one exists.)
- xorblurb 11y agoIIRC Allwinner does not have public datasheets, and honestly I prefer to have an half-documented half-accessible x86 platform rather than a theoretically fully-accessible ARM one that in practice is 1/10 publicly usable (the cpu alone is not enough to have fun with a platform... especially in the ARM SoC world -- and existing drivers have never replaced a good documentation of the hardware they drive.)
- ashitlerferad 11y agoSecurity issues in ROM are still security issues. Even if it is in ROM, it still needs to be auditable.