opensbi.git/lib/utils/reset/fdt_reset_gpio.c, branch master

lib: utils: Initialize miscellaneous drivers in one pass

2025-02-12T16:09:25Z

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 Reviewed-by: Anup Patel

lib: utils/reset: Use fdt_driver for initialization

2024-11-28T12:18:17Z

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 Reviewed-by: Anup Patel

lib: utils/reset: Constify FDT pointers in parsing functions

2024-08-24T07:32:42Z

Indicate that none of these functions modify the devicetree by constifying the parameter type. Signed-off-by: Samuel Holland Reviewed-by: Andrew Jones Reviewed-by: Anup Patel

treewide: Replace TRUE/FALSE with true/false

2023-01-06T11:56:35Z

C language standard uses true/false for the boolean type. Let's switch to that for better language compatibility. Signed-off-by: Bin Meng Reviewed-by: Anup Patel Reviewed-by: Samuel Holland Tested-by: Samuel Holland

lib: utils/fdt: Require match data to be const

2022-05-30T05:02:35Z

Match data stores hardware attributes which do not change at runtime, so it does not need to be mutable. Make it const. Reviewed-by: Guo Ren Reviewed-by: Xiang W Reviewed-by: Anup Patel Signed-off-by: Samuel Holland

lib: utils/reset: add priority to gpio reset

2021-11-12T04:45:54Z

Make gpio_system_reset_check return priority instead of just true/false. Make default 128 priority for reset/shutdown. Tested-by: Heinrich Schuchardt Reviewed-by: Alexandre Ghiti Tested-by: Alexandre Ghiti Signed-off-by: Nikita Shubin

lib: utils/reset: Register separate GPIO system reset devices

2021-11-02T03:44:11Z

Now that sbi_system support multiple system reset devices, we should register separate devices for GPIO restart and GPIO poweroff because DT describes these as separate devices with different compatible strings. Signed-off-by: Anup Patel Reviewed-by: Dong Du

lib: sbi: convert reset to list

2021-10-11T04:29:29Z

To support different handlers for different types of resets, we are adding a sbi_list of restart handlers. Instead of sbi_system_reset_set_device we use sbi_system_reset_add_device to reflect the actual meaning. Signed-off-by: Nikita Shubin Reviewed-by: Anup Patel

lib: utils: identify supported GPIO reset methods

2021-10-01T04:54:43Z

The GPIO reset driver supports reset and poweroff. But not all boards support both. gpio_system_reset_check() must detect this situation. Signed-off-by: Heinrich Schuchardt Reviewed-by: Anup Patel

lib: utils/reset: use sbi_timer_mdelay() in gpio reset driver

2021-09-26T14:22:18Z

We should use sbi_timer_mdelay() instead of custom gpio_mdelay() in the gpio reset driver. Signed-off-by: Anup Patel Reviewed-by: Bin Meng Reviewed-by: Xiang W