Add support for the NAND controller driver for SoC's that contain EBI2. For now, the only SoC upstream that has EBI2 is IPQ806x. The previous version added a BBT flag that allowed BBMs to be accessed in raw mode. Adding a flag isn't the right way to fix it, and the proposed fix is to add badblockbits support, and make sure all drivers switch to accessing BBM in raw mode. For now, skip nand_bbt usage, and implement our own versions of chip->block_bad and chip->mark_bad. The first patch in the series contains a nand_base clean up which the driver will utilize. Based over l2-mtd.git The patchset requires the v6 ADM dmaengine patches posted by Andy: https://lkml.org/lkml/2015/3/17/19 v8: - Fixed issues in erased page parsing as pointed by Boris. - Rewrite the empty page detection func to detect the page at a chunk level. This simplifies the code quite a bit. - Introduce raw page read/write ops. v7: - Incorporated missed suggestions from Boris. - Updated cafe_nand, docg4, diskonchip drivers - Some indentation fixes found by strict checkpatch checking v6: - Fix erased page parsing as suggested by Boris. - Change compatible string to something more legible. - Whitespace fixes. v5: - Skip creation of BBT as in v1. Will bring this back after BBMs are read/written in raw mode (using badblockbits support). - Incorporated misc fixes/suggestions by Boris. - Dropped the DT patches for now, since ADM DMA support isn't merged yet. v4: - Some more fixes. Mentioned in individual patch v3: - Various fixes and clean ups suggested by Stephen Boyd. v2: - Added a new BBT flag that allows us to read BBM in raw mode - reduce memcpy-s in the driver - some refactor and clean ups because of above changes v1: - original series: https://lkml.org/lkml/2015/1/16/317 Archit Taneja (3): mtd: nand: don't select chip in nand_chip's block_bad op mtd: nand: Qualcomm NAND controller driver dt/bindings: qcom_nandc: Add DT bindings .../devicetree/bindings/mtd/qcom_nandc.txt | 86 + drivers/mtd/nand/Kconfig | 7 + drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/cafe_nand.c | 2 +- drivers/mtd/nand/diskonchip.c | 2 +- drivers/mtd/nand/docg4.c | 2 +- drivers/mtd/nand/nand_base.c | 41 +- drivers/mtd/nand/qcom_nandc.c | 2224 ++++++++++++++++++++ include/linux/mtd/nand.h | 2 +- 9 files changed, 2341 insertions(+), 26 deletions(-) create mode 100644 Documentation/devicetree/bindings/mtd/qcom_nandc.txt create mode 100644 drivers/mtd/nand/qcom_nandc.c -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
