https://gahingwoo.github.io/tags/upstream/Recent content in Upstream on Gahing's SpaceHugoen-usFri, 12 Jun 2026 00:00:00 +0000https://gahingwoo.github.io/posts/rk3576-optee/Fri, 12 Jun 2026 00:00:00 +0000https://gahingwoo.github.io/posts/rk3576-optee/Bringing up a secure world on the RK3576 — a silent console, a different TRNG, an OTP key you can only write once, and a review that made all of it better.https://gahingwoo.github.io/posts/rk3576-tfa-gicv2/Sun, 24 May 2026 00:00:00 +0000https://gahingwoo.github.io/posts/rk3576-tfa-gicv2/Deleting one redundant line from Trusted Firmware-A's RK3576 platform — and what upstreaming even a trivial patch actually looks like.