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by bryanbuckley
3256 days ago
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Most likely the best you'll get is either a fully usable TrustZone SoC (so you can have your bootloader or linux do what you want) or there are SKUs of SoC where the ROM locks the various TZ registers into certain configurations which is meant to disable any runtime usage of the TZ by higher level SW e.g. bootloader or OS. If you are making something with the SoC.. it's probably safer to buy the locked down version of the SoC than to mess about with TZ or to leave it open. |
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