This implements the binding extension introduced to barebox here:
https://lore.barebox.org/barebox/20230531145927.1399282-1-a.fat...@pengutronix.de/T/#t
With this, barebox,state backend can optionally point at a device
instead of a partition. If this device is GPT-partitioned and has
a partition with a specific partition type GUID of
4778ed65-bf42-45fa-9c5b-287a1dc4aab1
It will be taken.
This series also fixes an annoying issue of barebox-state triggering
udev on every access, because the root block device corresponding
to the device tree node was opened r/w.
barebox-state will now open the disk read-only if possible and if
a partition exists that fits the barebox state location, it will
be opened instead.
Ahmad Fatoum (8):
state: backend: direct: open block device in read-only mode if
possible
libdt: factor out u64 sysattr parsing into helper
libdt: drop broken if-branch
libdt: factor out __of_cdev_find helper
libdt: use block device partition instead of parent if found
state: align with barebox use of of_cdev_find
libdt: use of_find_device_by_uuid for partuuid lookup
state: allow lookup of barebox state partition by Type GUID
src/barebox-state/backend_bucket_direct.c | 5 +-
src/barebox-state/backend_storage.c | 2 +-
src/barebox-state/state.c | 58 +++-
src/barebox-state/state.h | 3 +-
src/dt/common.h | 8 +
src/dt/dt.h | 8 +
src/libdt-utils.sym | 5 +
src/libdt.c | 341 ++++++++++++++++++----
src/linux/uuid.h | 24 ++
src/state.h | 4 +
10 files changed, 380 insertions(+), 78 deletions(-)
create mode 100644 src/linux/uuid.h
--
2.39.2
