Reserve a 1.5MiB region of memory to record kmsg dumps, console and userspace message state into 16kiB ring-buffer slots. The sizing allows for up to 16 dumps to be captured and read out.
Set max-reason to KMSG_DUMP_EMERG to capture bad-path reboots. Signed-off-by: Andrew Jeffery <[email protected]> --- arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts index 802027a3c43c..8431cf1b32e6 100644 --- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts +++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts @@ -55,6 +55,15 @@ flash_memory: region@B8000000 { /* 48MB region from the end of flash to start of vga memory */ + ramoops@bc000000 { + compatible = "ramoops"; + reg = <0xbc000000 0x180000>; /* 16 * (3 * 0x8000) */ + record-size = <0x8000>; + console-size = <0x8000>; + pmsg-size = <0x8000>; + max-reason = <3>; /* KMSG_DUMP_EMERG */ + }; + /* VGA region is dictated by hardware strapping */ vga_memory: region@bf000000 { no-map; -- 2.25.1
