| Message ID | 20220407150652.21885-1-gch981213@gmail.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | spi: add support for Mediatek SPI-NAND controller | expand |
On Thu, Apr 07, 2022 at 11:06:47PM +0800, Chuanhong Guo wrote: > Mediatek has an extended version of their NAND Flash Interface which > has a SPI-NAND mode. In this mode, the controller can perform 1-bit > spi-mem ops for up-to 0xa0 bytes and typical SPI-NAND single, dual > and quad IO page cache ops with 2-byte address. Additionally, the > page cache ops can be performed with ECC and auto data formatting > using the ECC engine of the controller. > > This patchset implements support of this mode as a separated SPI-MEM > driver with piplined ECC engine. ^^^^^^^^ missing 'e': pipelined For the whole series: Tested-by: Daniel Golle <daniel@makrotopia.org> > > Changes since v1: > add a blank line between properties in dt binding doc > rename ecc-engine to nand-ecc-engine for the generic properties > fix warnings/errors from the CI > > Changes since v2: > use streamed DMA api to avoid an extra memory copy during read > make ECC engine config a per-nand context > take user-requested ECC strength into account > > Change since v3: > fix a missed ecc-engine rename in doc from v1 > > Chuanhong Guo (5): > mtd: nand: make mtk_ecc.c a separated module > spi: add driver for MTK SPI NAND Flash Interface > mtd: nand: mtk-ecc: also parse nand-ecc-engine if available > dt-bindings: spi: add binding doc for spi-mtk-snfi > arm64: dts: mediatek: add mtk-snfi for mt7622 > > .../bindings/spi/mediatek,spi-mtk-snfi.yaml | 88 + > arch/arm64/boot/dts/mediatek/mt7622.dtsi | 12 + > drivers/mtd/nand/Kconfig | 7 + > drivers/mtd/nand/Makefile | 1 + > drivers/mtd/nand/{raw/mtk_ecc.c => ecc-mtk.c} | 8 +- > drivers/mtd/nand/raw/Kconfig | 1 + > drivers/mtd/nand/raw/Makefile | 2 +- > drivers/mtd/nand/raw/mtk_nand.c | 2 +- > drivers/spi/Kconfig | 10 + > drivers/spi/Makefile | 1 + > drivers/spi/spi-mtk-snfi.c | 1442 +++++++++++++++++ > .../linux/mtd/nand-ecc-mtk.h | 0 > 12 files changed, 1569 insertions(+), 5 deletions(-) > create mode 100644 Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml > rename drivers/mtd/nand/{raw/mtk_ecc.c => ecc-mtk.c} (98%) > create mode 100644 drivers/spi/spi-mtk-snfi.c > rename drivers/mtd/nand/raw/mtk_ecc.h => include/linux/mtd/nand-ecc-mtk.h (100%) > > -- > 2.35.1 > > > _______________________________________________ > Linux-mediatek mailing list > Linux-mediatek@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-mediatek
Mediatek has an extended version of their NAND Flash Interface which has a SPI-NAND mode. In this mode, the controller can perform 1-bit spi-mem ops for up-to 0xa0 bytes and typical SPI-NAND single, dual and quad IO page cache ops with 2-byte address. Additionally, the page cache ops can be performed with ECC and auto data formatting using the ECC engine of the controller. This patchset implements support of this mode as a separated SPI-MEM driver with piplined ECC engine. Changes since v1: add a blank line between properties in dt binding doc rename ecc-engine to nand-ecc-engine for the generic properties fix warnings/errors from the CI Changes since v2: use streamed DMA api to avoid an extra memory copy during read make ECC engine config a per-nand context take user-requested ECC strength into account Change since v3: fix a missed ecc-engine rename in doc from v1 Chuanhong Guo (5): mtd: nand: make mtk_ecc.c a separated module spi: add driver for MTK SPI NAND Flash Interface mtd: nand: mtk-ecc: also parse nand-ecc-engine if available dt-bindings: spi: add binding doc for spi-mtk-snfi arm64: dts: mediatek: add mtk-snfi for mt7622 .../bindings/spi/mediatek,spi-mtk-snfi.yaml | 88 + arch/arm64/boot/dts/mediatek/mt7622.dtsi | 12 + drivers/mtd/nand/Kconfig | 7 + drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/{raw/mtk_ecc.c => ecc-mtk.c} | 8 +- drivers/mtd/nand/raw/Kconfig | 1 + drivers/mtd/nand/raw/Makefile | 2 +- drivers/mtd/nand/raw/mtk_nand.c | 2 +- drivers/spi/Kconfig | 10 + drivers/spi/Makefile | 1 + drivers/spi/spi-mtk-snfi.c | 1442 +++++++++++++++++ .../linux/mtd/nand-ecc-mtk.h | 0 12 files changed, 1569 insertions(+), 5 deletions(-) create mode 100644 Documentation/devicetree/bindings/spi/mediatek,spi-mtk-snfi.yaml rename drivers/mtd/nand/{raw/mtk_ecc.c => ecc-mtk.c} (98%) create mode 100644 drivers/spi/spi-mtk-snfi.c rename drivers/mtd/nand/raw/mtk_ecc.h => include/linux/mtd/nand-ecc-mtk.h (100%)