Qualcomm's proprietary Android boot-loaders capture boot time stats, like the time when the bootloader started execution and at what point the bootloader handed over control to the kernel etc. in the IMEM region. This information is captured by the bootloader and populated on the device tree properties "pre-abl-time" and "abl-time" which can be be viewed from the user space like as follows:- /sys/firmware/devicetree/base/bootstats # cat abl_time 17898 As a part of this patch series added the bindings for boot-stats which was suggested in the v6 of the series. The link for the same is as follows:- https://lore.kernel.org/linux-arm-kernel/7d397e67-5d56-4975-98af-1ac9746c07f4@xxxxxxxxxxxxxxxx/ Souradeep Chowdhury (2): dt-bindings: firmware: bootstats: Add the dtschema MAINTAINERS: Add the entry for boot_stats support .../bindings/firmware/qcom,bootstats.yaml | 38 +++++++++++++++++++ MAINTAINERS | 6 +++ 2 files changed, 44 insertions(+) create mode 100644 Documentation/devicetree/bindings/firmware/qcom,bootstats.yaml -- 2.17.1
