Hi Krzysztof, Am Sonntag, 4. August 2024, 12:05:11 CEST schrieb Krzysztof Kozlowski: > On 03/08/2024 14:55, Yao Zi wrote: > > This initial device tree describes CPU, interrupts and UART on the chip > > and is able to boot into basic kernel with only UART. Cache information > > is omitted for now as there is no precise documentation. Support for > > other features will be added later. > > > > Signed-off-by: Yao Zi <ziyao@xxxxxxxxxxx> > > --- > > + compatible = "fixed-clock"; > > + #clock-cells = <0>; > > + clock-frequency = <24000000>; > > + clock-output-names = "xin24m"; > > + }; > > + > > + gic: interrupt-controller@fed01000 { > > Why this all is outside of SoC? I guess you mean outside of a "soc {}" node? Here the rk3528 simply follows all other Rockchip SoCs :-) . Digging into the history, the first rk3066a and initial rk3288 submission did use a soc {} node, which later got removed as suggested by arm-soc maintainers at the time [0]. I guess that changed since then? Heiko [0] https://lore.kernel.org/linux-arm-kernel/20140716005528.GA26207@xxxxxxxxxxxxxx/ https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3030d30d9c99c057b5ddfa289cffa637a2775f5