Hi, On Wed, Aug 02, 2023 at 03:19:04PM -0600, Simon Glass wrote: > On Wed, 2 Aug 2023 at 15:03, Simon Glass <s...@chromium.org> wrote: > > Does anyone know how to enable HDMI output on this device in U-Boot, > > e.g. on rock5b?
Upstream kernel does not yet support RK3588 HDMI output, but Cristian Ciocaltea (added in Cc) is working on it. For U-Boot AFAIK nobody is working on extending the drivers in drivers/video/rockchip/* at the moment. > Also, how do I make serial console, or earlycon work on this > board? The upstream Kernel stdout-path defined in the Rock 5B DT, so serial should work OOTB. But - like all Rockchip devices - RK3588 boards use 1500000 Baud instead of the common 115200. Some USB serial adapters are too slow for that. See also: https://wiki.radxa.com/Rock5/dev/serial-console Greetings, -- Sebastian
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