10 Dec, 2018

1 commit

  • The original bootcount methods do not provide an interface to DM and
    rely on a static configuration for I2C devices (e.g. bus, chip-addr,
    etc. are configured through defines statically). On a modern system
    that exposes multiple devices in a DTS-configurable way, this is less
    than optimal and a interface to DM-based devices will be desirable.

    This adds a simple driver that is DM-aware and configurable via DTS.
    If ambiguous (i.e. multiple bootcount-devices are present) the
    /chosen/u-boot,bootcount-device property can be used to select one
    bootcount device.

    Initially, this provides support for the following DM devices:
    * RTC devices

    Signed-off-by: Philipp Tomsich
    Tested-by: Klaus Goger

    Philipp Tomsich