diff options
| author | Sam Protsenko <semen.protsenko@linaro.org> | 2023-10-07 22:36:33 -0500 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2023-10-12 22:01:49 +0200 |
| commit | 23e4a49943624dd83199989c852565a3ff760fa7 (patch) | |
| tree | 761eadd5c1de6f6dc3a5fca35599e170937b7e18 /arch/arm64/boot/dts/exynos | |
| parent | f28dde395937e000585ac87c0d1c18885661161d (diff) | |
arm64: dts: exynos: Add reserved memory for pstore on E850-96
Reserve a 2 MiB memory region to record kmsg dumps, console, ftrace and
userspace messages. The implemented memory split allows capturing and
reading corresponding ring buffers:
* dmesg: 6 dumps, 128 KiB each
* console: 128 KiB
* ftrace: 128 KiB for each of 8 CPUs (1 MiB total)
* userspace messages: 128 KiB
Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Link: https://lore.kernel.org/r/20231008033633.21304-1-semen.protsenko@linaro.org
[krzysztof: move the node to alphabetically sorted position]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Diffstat (limited to 'arch/arm64/boot/dts/exynos')
| -rw-r--r-- | arch/arm64/boot/dts/exynos/exynos850-e850-96.dts | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts b/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts index 8d733361ef82..f074df8982b3 100644 --- a/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts +++ b/arch/arm64/boot/dts/exynos/exynos850-e850-96.dts @@ -141,6 +141,21 @@ gpio = <&gpa3 5 GPIO_ACTIVE_LOW>; }; + reserved-memory { + #address-cells = <2>; + #size-cells = <1>; + ranges; + + ramoops@f0000000 { + compatible = "ramoops"; + reg = <0x0 0xf0000000 0x200000>; + record-size = <0x20000>; + console-size = <0x20000>; + ftrace-size = <0x100000>; + pmsg-size = <0x20000>; + }; + }; + /* * RTC clock (XrtcXTI); external, must be 32.768 kHz. * |