This picks up an older patchset written by Lucas Stach which adds raw NAND flash support for Tegra 2. http://lists.infradead.org/pipermail/linux-mtd/2015-November/063031.html The driver has been reworked to implement the ->exec_op callback. Some smaller changes and bug fixes have been applied too, but I did not keep track of them. Since the original patchset has been posted some years back already, I guess review needs to be done from scratch anyway. This second revision is a rather major overhaul again. There are some open issues: - Driver specific DMA enabled (read/write)_page_raw are non functional (I am not sure why, or if this is maybe even not possible at all...) - OOB layout discrepancy When using HW BCH support, the location of the ECC bytes changes depending on whether extra OOB bytes (tag data) are transmitted or not... Writing/Reading should always be with tag enabled or always without. I am not sure how to solve this correctly, maybe disallow using OOB data with HW ECC completely? -- Stefan Changes since v1: - Split controller and NAND chip structure - Add BCH support - Allow to select algorithm and strength using device tree - Improve HW ECC error reporting and use DEC_STATUS_BUF only - Use SPDX license identifier - Use per algorithm mtd_ooblayout_ops - Use setup_data_interface callback for NAND timing configuration Lucas Stach (4): mtd: rawnand: tegra: add devicetree binding clk: tegra20: init NDFLASH clock to sensible rate ARM: tegra: add Tegra20 NAND flash controller node ARM: tegra: enable NAND flash on Colibri T20 Stefan Agner (2): mtd: rawnand: add Reed-Solomon error correction algorithm mtd: rawnand: add NVIDIA Tegra NAND Flash controller driver .../bindings/mtd/nvidia,tegra20-nand.txt | 62 ++ MAINTAINERS | 7 + arch/arm/boot/dts/tegra20-colibri-512.dtsi | 16 + arch/arm/boot/dts/tegra20.dtsi | 13 + drivers/clk/tegra/clk-tegra20.c | 1 + drivers/mtd/nand/raw/Kconfig | 6 + drivers/mtd/nand/raw/Makefile | 1 + drivers/mtd/nand/raw/nand_base.c | 1 + drivers/mtd/nand/raw/tegra_nand.c | 999 ++++++++++++++++++ include/linux/mtd/rawnand.h | 1 + 10 files changed, 1107 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/nvidia,tegra20-nand.txt create mode 100644 drivers/mtd/nand/raw/tegra_nand.c -- 2.17.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
