summaryrefslogtreecommitdiff
path: root/lib/utils/reset/fdt_reset_syscon.c
AgeCommit message (Collapse)Author
2025-02-12lib: utils: Initialize miscellaneous drivers in one passSamuel Holland
For driver subsystems that are not tightly integrated into the OpenSBI init sequence, it is not important that the drivers are initialized in any particular order. By putting all of these drivers in one array, they can all be initialized with a single pass through the devicetree. This saves about 10 ms of boot time on HiFive Unmatched. Signed-off-by: Samuel Holland <[email protected]> Reviewed-by: Anup Patel <[email protected]>
2024-11-28lib: utils/reset: Use fdt_driver for initializationSamuel Holland
The reset driver subsystem does not need any extra data, so it can use `struct fdt_driver` directly. The generic fdt_reset_init() performs a best-effort initialization of all matching DT nodes. Platform-specific logic expects exactly one DT node to match a single driver. This is accomplished by using fdt_driver_init_one() with a local list containing that one driver. Signed-off-by: Samuel Holland <[email protected]> Reviewed-by: Anup Patel <[email protected]>
2024-08-24lib: utils/reset: Constify FDT pointers in parsing functionsSamuel Holland
Indicate that none of these functions modify the devicetree by constifying the parameter type. Signed-off-by: Samuel Holland <[email protected]> Reviewed-by: Andrew Jones <[email protected]> Reviewed-by: Anup Patel <[email protected]>
2023-07-31lib: utils/reset: Add syscon based reboot and poweroffAnup Patel
Let us have common FDT based reset driver for syscon reboot and poweroff. The device tree bindings for syscon reboot and poweroff are already available in the Linux kernel sources. Signed-off-by: Anup Patel <[email protected]> Reviewed-by: Xiang W <[email protected]>