opensbi.git/lib/utils/reset/fdt_reset.c, branch v1.5

lib: utils/reset: Try initializing all reset devices in dt

2024-06-13T16:18:03Z

In DT, multiple reset devices may use the same driver, and they may have different priorities. If rc is returned after the first initialization, the highest priority device may be lost. Fixes: a73ff043e991 (lib: utils/reset: Fix fdt_reset to search for more dt nodes) Signed-off-by: Xiang W Reviewed-by: Anup Patel

lib: utils/reset: Fix fdt_reset to search for more dt nodes

2024-06-13T13:19:51Z

If there are multiple dt nodes, the previous code only tries to match the first one, which may lose initialization. Signed-off-by: Xiang W Reviewed-by: Anup Patel

lib: utils/reset: Skip initialize reset when dt is not enabled

2024-06-13T13:10:38Z

When the dt node has a status property and the value is not ok or okay, skip initializing reset. Signed-off-by: Xiang W Reviewed-by: Anup Patel

lib: utils/reset: Generate FDT reset driver list at compile-time

2022-05-13T03:56:06Z

Instead of having FDT reset driver list hard-coded in the C source, we generate it using carray.sh at compile-time. Signed-off-by: Anup Patel Reviewed-by: Atish Patra

lib: utils/reset: separate driver init func

2021-11-12T04:46:23Z

Move driver init code to separate function, so it can be reused elsewhere. Tested-by: Heinrich Schuchardt Reviewed-by: Alexandre Ghiti Tested-by: Alexandre Ghiti Signed-off-by: Nikita Shubin

lib: sbi: error handling in fdt_reset_init()

2021-11-08T05:20:48Z

The initialization of a reset driver may fail for various reasons, like a PMIC based reset driver not finding the required I2C driver. The return code of the init routine may take other error values than -ENODEV. If the initialization of a reset driver fails, this should not lead to the board hanging. It is enough that the reset driver does not call sbi_system_reset_add_device() to avoid invoking the driver for a device that could not be initialized. Change the return type of fdt_reset_init() to void. Print a message if an error occurs. Signed-off-by: Heinrich Schuchardt Reviewed-by: Dong Du Reviewed-by: Anup Patel

include: sbi_utils: Introduce an helper to get fdt base address

2021-11-02T05:53:16Z

This simply adds an helper to get fdt address which is more explicit than sbi_scratch_thishart_arg1_ptr. Signed-off-by: Alexandre Ghiti Reviewed-by: Xiang W Reviewed-by: Anup Patel

lib: utils/reset: Add a sunxi watchdog reset driver

2021-09-14T07:54:53Z

One of the watchdogs in the D1 SoC provides a "soft reset" function, which allows software to immediately reset the entire SoC. Add a driver so it can implement the SBI system reset function. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: utils/reset: Sort fdt_reset driver list

2021-09-14T06:43:55Z

In preparation for adding a new fdt_reset driver, ensure the existing lists are sorted alphabetically. Signed-off-by: Samuel Holland Reviewed-by: Anup Patel

lib: utils: support both of gpio-poweroff, gpio-reset

2021-07-27T11:56:54Z

The generic GPIO reset driver has two entries in the match table: "gpio-poweroff", "gpio-reset". Only the first entry is considered by fdt_reset_init(). Define "gpio-poweroff" and "gpio-reset" as compatibility strings of two separate reset drivers. They still can share code. Fixes: e3d6919d10d7 ("lib: utils/reset: Add generic GPIO reset driver") Signed-off-by: Heinrich Schuchardt Reviewed-by: Atish Patra