diff options
| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2018-11-27 23:00:18 +0100 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2018-12-10 10:04:44 +0100 |
| commit | ebb73de1687cfd6449f492b54cc2f32b4b0ce9c5 (patch) | |
| tree | 944b0df2343457620b370027c174a7541578351c /include/dm | |
| parent | f338cca1d2bce906b049722d2fdbf527a4963b61 (diff) | |
bootcount: add uclass for bootcount
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 <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Diffstat (limited to 'include/dm')
| -rw-r--r-- | include/dm/uclass-id.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index 037af0460c..bbe842e59a 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -32,6 +32,7 @@ enum uclass_id { UCLASS_AXI, /* AXI bus */ UCLASS_BLK, /* Block device */ UCLASS_BOARD, /* Device information from hardware */ + UCLASS_BOOTCOUNT, /* Bootcount backing store */ UCLASS_CLK, /* Clock source, e.g. used by peripherals */ UCLASS_CPU, /* CPU, typically part of an SoC */ UCLASS_CROS_EC, /* Chrome OS EC */ |