The command rkmtd creates a virtual block device to transfer Rockchip boot block data to and from NAND with block orientated tools like "ums" and "rockusb".
It uses the Rockchip MTD driver to scan for boot blocks and copies data from the first block in a GPT formatted virtual disk. Data must be written in U-boot "idbloader.img" format and start at partition "loader1" offset 64. The data header is parsed for length and offset. When the last sector is received it erases up to 5 erase blocks on NAND and writes boot blocks in a pattern depending on the NAND ID. Data is then verified. When a block turns out bad the block header is discarded. Changed V3: Add documetation Add test Split driver from command Split header Use devm_kzalloc Remove out of memory debug Restyle Changed V2: Rename to rkmtd Johan Jonker (7): mtd: nand: raw: rockchip_nfc: add NAND_SKIP_BBTSCAN option rockchip: dm: prepare rkmtd UCLASS rockchip: block: add rkmtd class and drivers rockchip: block: blk-uclass: disable bounce buffer support for rkmtd rockchip: cmd: add rkmtd command rockchip: test: dm: add rkmtd test rockchip: doc: add rkmtd.rst cmd/Kconfig | 8 + cmd/Makefile | 1 + cmd/rkmtd.c | 204 +++++ disk/part.c | 4 + doc/board/rockchip/index.rst | 1 + doc/board/rockchip/rkmtd.rst | 105 +++ drivers/block/Kconfig | 7 + drivers/block/Makefile | 2 + drivers/block/blk-uclass.c | 7 +- drivers/block/rkmtd.c | 1138 +++++++++++++++++++++++++++ drivers/mtd/nand/raw/Kconfig | 9 + drivers/mtd/nand/raw/rockchip_nfc.c | 3 + include/dm/uclass-id.h | 1 + include/rkmtd.h | 190 +++++ test/dm/Makefile | 1 + test/dm/rkmtd.c | 201 +++++ 16 files changed, 1879 insertions(+), 3 deletions(-) create mode 100644 cmd/rkmtd.c create mode 100644 doc/board/rockchip/rkmtd.rst create mode 100644 drivers/block/rkmtd.c create mode 100644 include/rkmtd.h create mode 100644 test/dm/rkmtd.c -- 2.39.2
