Am Donnerstag, 6. März 2025, 14:40:02 MEZ schrieb Chukun Pan: > Hi, > > > That sram is part of the soc (and has an mmio-address), so I'd think > > it should live inside the soc node? > > But soc ranges starts from 0xfe000000, I don't know whether to change it. > And all other nodes are 0xf..., except this sram. > Any suggestions would be greatly appreciated. darn ... I didn't realize that this is not sram, but main memory :-) in freescale/s32g3.dtsi and blaize/blaize-blzp1600.dtsi I see structures like: reserved-memory { #address-cells = <2>; #size-cells = <2>; ranges; scmi_shmem: shm@d0000000 { compatible = "arm,scmi-shmem"; reg = <0x0 0xd0000000 0x0 0x80>; no-map; }; }; does something like this work on the rk3528? Heiko