tree 3733c428484dcbb7801594dbd076d9860985ed5c
parent c0bcaaf9e5f865c117209ac5b3cc097aace647b2
author Simon Glass <sjg@chromium.org> 1667094435 -0600
committer Simon Glass <sjg@chromium.org> 1667863470 -0700

dm: sandbox: Create a new HOST uclass

Sandbox supports block devices which can access files on the host machine.
At present there is no uclass for this. The devices are attached to the
root devic. The block-device type is therefore set to UCLASS_ROOT which
is confusing.

Block devices should be attached to a 'media' device instead, something
which handles access to the actual media and provides the block driver
for the block device.

Create a new uclass to handle this. It supports two operations, to attach
and detach a file on the host machine.

For now this is not fully plumbed in.

Signed-off-by: Simon Glass <sjg@chromium.org>