Hello all, This series is not 100% stable yet but I believe it should be sent out in order to help other people trying to use the ECC framework with a SPI controller. Basically, Macronix ECC engine can be used as an external engine (takes the data, proceeds to the calculations, writes back the ECC bytes) or as a pipelined engine doing on-the-fly calculations (which is very common in the raw NAND world). In the device tree, the ECC engine should be described as a separated DT node. Then: * external case: the flash node should provide a nand-ecc-engine property pointing to the ECC engine node. * pipelined case: the flash node should provide a nand-ecc-engine property pointing to the SPI controller, itself with another nand-ecc-engine property pointing at the ECC engine node. I will resubmit this later when I will be done validating the hardware and the driver. Cheers, Miquèl Mason Yang (1): mtd: spinand: macronix: Use random program load Miquel Raynal (9): mtd: spinand: Fix comment dt-bindings: vendor-prefixes: Update Macronix prefix dt-bindings: mtd: Describe Macronix NAND ECC engine mtd: nand: ecc: Add infrastructure to support hardware engines mtd: nand: mxic-ecc: Add Macronix external ECC engine support mtd: nand: mxic-ecc: Support SPI pipelined mode spi: mxic: Fix the transmit path spi: mxic: Add support for direct mapping spi: mxic: Add support for pipelined ECC operations .../bindings/mtd/mxic,nand-ecc-engine.yaml | 78 ++ .../devicetree/bindings/vendor-prefixes.yaml | 3 + drivers/mtd/nand/Kconfig | 6 + drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/core.c | 10 +- drivers/mtd/nand/ecc-mxic.c | 797 ++++++++++++++++++ drivers/mtd/nand/ecc.c | 89 ++ drivers/mtd/nand/spi/core.c | 2 +- drivers/mtd/nand/spi/macronix.c | 2 +- drivers/spi/spi-mxic.c | 309 ++++++- include/linux/mtd/nand-ecc-mxic.h | 36 + include/linux/mtd/nand.h | 11 + 12 files changed, 1296 insertions(+), 48 deletions(-) create mode 100644 Documentation/devicetree/bindings/mtd/mxic,nand-ecc-engine.yaml create mode 100644 drivers/mtd/nand/ecc-mxic.c create mode 100644 include/linux/mtd/nand-ecc-mxic.h -- 2.27.0
