--- zzzz-none-000/linux-5.4.213/Documentation/devicetree/bindings/reserved-memory/ramoops.txt 2022-09-15 10:04:56.000000000 +0000 +++ alder-5690pro-762/linux-5.4.213/Documentation/devicetree/bindings/reserved-memory/ramoops.txt 2024-08-14 09:01:24.000000000 +0000 @@ -39,7 +39,11 @@ - ftrace-size: size in bytes of log buffer reserved for function tracing and profiling (defaults to 0: disabled) -- pmsg-size: size in bytes of log buffer reserved for userspace messages +- pmsg-size: array of value that are used to size in bytes of log buffer + reserved for userspace messages. + + pmsg-size = <0x10000 0x10000>; + (defaults to 0: disabled) - unbuffered: if present, use unbuffered mappings to map the reserved region