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 original version was posted a while back. The main comments were about the driver not being able to use nand_bbt. This was because the controller could read factory bad block markers only in RAW mode. This forced us to implement our own versions of chip->block_bad and chip->blobk_markbad, and also we had to skip creating a BBT. Discussions with Kevin Cernekee concluded that having a new BBT flag that incorporates this controller's special requirement is a possible option. The new version makes use of this flag and now uses nand_bbt, at the cost of implement read_oob_raw and write_oob_raw ops. The patchset requires the v6 ADM dmaengine patches posted by Andy: https://lkml.org/lkml/2015/3/17/19 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 (5): mtd: nand: Create a BBT flag to access bad block markers in raw mode mtd: nand: Qualcomm NAND controller driver dt/bindings: qcom_nandc: Add DT bindings arm: qcom: dts: Add NAND controller node for ipq806x arm: qcom: dts: Enable NAND node on IPQ8064 AP148 platform .../devicetree/bindings/mtd/qcom_nandc.txt | 49 + arch/arm/boot/dts/qcom-ipq8064-ap148.dts | 36 + arch/arm/boot/dts/qcom-ipq8064.dtsi | 15 + drivers/mtd/nand/Kconfig | 7 + drivers/mtd/nand/Makefile | 1 + drivers/mtd/nand/nand_base.c | 6 +- drivers/mtd/nand/nand_bbt.c | 6 +- drivers/mtd/nand/qcom_nandc.c | 1913 ++++++++++++++++++++ include/linux/mtd/bbm.h | 7 + 9 files changed, 2038 insertions(+), 2 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-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
