This small series handle 2 problems. It does try to ""standardize"" the usage of block2mtd module with MTD OF nodes. It is very easy to add support for MTD parser by just adding an OF node to the mtd created for block2mtd. This apply only if the root block is used for block2mtd to allow scenario where the full eMMC or an NVME is used for MTD and it doesn't have any partition table. To also support NVME, similar to how it's done with eMMC, we introduce a subnode to the NVME controller that needs to have the "nvme-card" compatible where a dev can define fixed-paritions for MTD parser usage. This series also add support for the Airoha partition table where the last partition is always ART and is placed at the end of the flash. This require dynamic calculation of the offset as some dedicated driver for bad block management might be used that reserve some space at the end of the flash for block accounting. New aarch64 Airoha SoC make use of this partition table and use block2mtd for eMMC to treat them as MTD with custom bad block management and block tracking. Changes v4: - Add additional patch for ofpart kmod with of_update_property not exported Changes v3: - Fix compilation error for missing slab.h header - Add compatible to partitions.yaml Changes v2: - Fix typo in DT patch - Fix compilation error for non-OF platform - Fix compilation error due to recent changes in block2mtd module Christian Marangi (7): dt-bindings: nvme: Document nvme-card compatible nvme: assign of_node to nvme device dt-bindings: mmc: add property for partitions node in mmc-card node block2mtd: attach device OF node to MTD device of: also export of_update_property dt-bindings: mtd: Add Documentation for Airoha fixed-partitions mtd: parser: add support for Airoha parser .../devicetree/bindings/mmc/mmc-card.yaml | 40 ++++++++++ .../partitions/airoha,fixed-partitions.yaml | 80 +++++++++++++++++++ .../bindings/mtd/partitions/partitions.yaml | 1 + .../devicetree/bindings/nvme/nvme-card.yaml | 78 ++++++++++++++++++ drivers/mtd/devices/block2mtd.c | 12 +++ drivers/mtd/parsers/Kconfig | 10 +++ drivers/mtd/parsers/Makefile | 1 + drivers/mtd/parsers/ofpart_airoha.c | 57 +++++++++++++ drivers/mtd/parsers/ofpart_airoha.h | 18 +++++ drivers/mtd/parsers/ofpart_core.c | 6 ++ drivers/nvme/host/core.c | 4 + drivers/of/base.c | 1 + 12 files changed, 308 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/partitions/airoha,fixed-partitions.yaml create mode 100644 Documentation/devicetree/bindings/nvme/nvme-card.yaml create mode 100644 drivers/mtd/parsers/ofpart_airoha.c create mode 100644 drivers/mtd/parsers/ofpart_airoha.h -- 2.45.2
