So far, we had basically three ways to reference barebox,state on block
devices:
- On platforms with device tree, we point at a fixed partition
described in the DT
- On platforms without device tree, we have a custom binding that
does a global lookup by partuuid (or a more obscure one by diskuuid).
Both are less than optimal. The first clashes with the need to use
a GPT partition for the state and the second doesn't allow relating the
UUID with an actual device for the case where e.g. both an SD-Card and
an eMMC are flashed with the same image.
This series fixes that by:
- Supporting definition of fixed partitions that are identical to
GPT/MBR partitions.
- Alternatively, support pointing barebox-state backend at a
GPT-partitioned device and the partition with the barebox-state
Type GUID will be taken.
Changelog written in each patch
Ahmad Fatoum (19):
common: partitions: decouple from EFI GUID definition
efi: define efi_guid_t as 32-bit aligned guid_t
cdev: fix for_each_cdev macro
of: partition: support of_partition_ensure_probed on parent device
state: fix deep probe handling
of: of_path: always call of_partition_ensure_probed before resolving
driver: add new cdev_is_partition helper
commands: stat: remove code duplication for type info
cdev: use more descriptive struct cdev::diskuuid/partuuid
cdev: record whether partition is parsed from OF
cdev: have devfs_add_partition return existing identical partition,
not NULL
block: parse partition table on block device registration
common: partitions: record whether disk is GPT or MBR partitioned
block: add cdev_is_block_(device|partition|disk) helpers
of: export new of_cdev_find helper
state: factor device path lookup into helper function
cdev: use cdev::dos_partition_type only if cdev_is_mbr_partitioned
common: partitions: efi: record type UUID in cdev
state: allow lookup of barebox state partition by Type GUID
arch/sandbox/board/hostfile.c | 4 --
common/block.c | 4 ++
common/blspec.c | 2 +-
common/bootm.c | 2 +-
common/partitions.c | 4 +-
common/partitions/dos.c | 4 +-
common/partitions/efi.c | 11 ++++--
common/partitions/parser.h | 6 ++-
common/state/state.c | 50 ++++++++++++++++++------
drivers/ata/disk_ata_drive.c | 5 ---
drivers/base/driver.c | 2 +-
drivers/block/efi-block-io.c | 9 +----
drivers/block/virtio_blk.c | 8 +---
drivers/mci/mci-core.c | 6 ---
drivers/misc/storage-by-uuid.c | 4 +-
drivers/nvme/host/core.c | 5 ---
drivers/of/of_path.c | 69 ++++++++++++++++++++++++----------
drivers/of/partition.c | 46 ++++++++++++++++++++---
drivers/of/platform.c | 2 +-
drivers/usb/storage/usb.c | 5 ---
fs/devfs-core.c | 67 +++++++++++++++++++++++++--------
fs/fs.c | 33 +++++++++++-----
include/block.h | 15 ++++++++
include/driver.h | 60 ++++++++++++++++++++++++++---
include/efi.h | 19 ++++++++--
include/efi/partition.h | 27 ++++++-------
include/of.h | 1 +
include/state.h | 4 ++
lib/Makefile | 1 +
lib/uuid.c | 15 ++++++++
30 files changed, 351 insertions(+), 139 deletions(-)
create mode 100644 lib/uuid.c
--
2.39.2
