Signed-off-by: André Draszik <andre.draszik@linaro.org>

Signed-off-by: André Draszik <andre.draszik@linaro.org>

We're not calling it yet, though.

Signed-off-by: André Draszik <andre.draszik@linaro.org>

0 is a valid file descriptor, so fix the code to not fall over that.

Signed-off-by: André Draszik <andre.draszik@linaro.org>

Allow and require ufs_bsg_dev_open() and ufs_bsg_dev_close() to be
called explcitly and rename and export set_boot_lun() to
ufs_bsg_set_boot_lun() to have a proper namespace. While at it, use
non-ancient prototype for ufs_bsg_dev_close().

This will allow us to try different paths for the BSG device, as we'll
have to close and retry in that case.

Signed-off-by: André Draszik <andre.draszik@linaro.org>

Taken from https://github.com/linux-msm/qbootctl.git

 as of
commit b8d22489141b ("add a flag to continue when ufs bsg device is
missing")

Signed-off-by: André Draszik <andre.draszik@linaro.org>

Signed-off-by: André Draszik <andre.draszik@linaro.org>

by default, we build in a subdirectory, out/

Signed-off-by: André Draszik <andre.draszik@linaro.org>

This is mostly complete, but is missing update of the UFS boot LUN,
which is used by the BootROM to determine where to load BL1 from (which
needs to match the devinfo).

Signed-off-by: André Draszik <andre.draszik@linaro.org>