mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-17 18:28:55 +00:00
c50b21b705
The driver will use a syscon regmap as backend and supports both 16 and 32 size value. The value will be stored in the CPU's endianness. Signed-off-by: Nandor Han <nandor.han@vaisala.com> Reviewed-by: Simon Glass <sjg@chromium.org>
24 lines
739 B
Text
24 lines
739 B
Text
Bootcount Configuration
|
|
This is the implementation of the feature as described in
|
|
https://www.denx.de/wiki/DULG/UBootBootCountLimit.
|
|
|
|
Required Properties:
|
|
- compatible: must be "u-boot,bootcount-syscon".
|
|
- syscon: reference to the syscon device used.
|
|
- reg: contains address and size of the register and the location and size of the bootcount value.
|
|
The driver supports a 4 bytes register length and 2 and 4 bytes bootcount value length.
|
|
- reg-names: must be "syscon_reg", "offset";
|
|
|
|
Example:
|
|
...
|
|
syscon0: syscon@0 {
|
|
compatible = "sandbox,syscon0";
|
|
reg = <0x10 16>;
|
|
};
|
|
...
|
|
bootcount@0 {
|
|
compatible = "u-boot,bootcount-syscon";
|
|
syscon = <&syscon0>;
|
|
reg = <0x0 0x04>, <0x0 0x04>;
|
|
reg-names = "syscon_reg", "offset";
|
|
};
|