Hi Boris, On Thu, May 01, 2014 at 03:09:49AM +0200, Boris BREZILLON wrote: > Hello, > > This series is a proposal to add support for randomizers (either software > or hardware) to NAND flash controller drivers. Thanks for providing this! I'll need these features soon and I'm happy to see them coming into the nand controller framework. Antoine > The last patch is the sunxi HW randomizer implementation and is just given > as an example (it won't apply on the MTD tree, because it depends on other > stuff not yet posted on the MTD ML, but if you want a full overview of the > NAND Flash controller driver you can take a look at this series [2]). > > I can also provide a software implementation based on LFSR (Left Feedback > Shift Register) algorithm, thought I haven't tested it yet, hence why it's > not part of this series. Let me know if you're interested in this > implementation. > > This series depends on the "per-partition ECC" series [1], because I need > the randomizer seed to be different depending on the partition (for the > same reason I needed ECC config to be different for each partition: the > bootrom config might not fit the NAND chip requirements). > > I'd like to have feedback from both MTD maintainers and driver > developers who might need to implement (or use) a randomizer in their > system, so feel free to comment on this series. > > Best Regards, > > Boris > > [1] https://lkml.org/lkml/2014/2/12/627 > [2] https://groups.google.com/forum/#!msg/linux-sunxi/s3lBb01I0Js/z2NoCFJ83g4J > > > Boris BREZILLON (3): > mtd: nand: introduce a randomizer layer in the NAND framework > of: mtd: add NAND randomizer mode retrieval > mtd: nand: add sunxi randomizer support > > drivers/mtd/nand/nand_base.c | 278 ++++++++++++++++++----- > drivers/mtd/nand/sunxi_nand.c | 507 +++++++++++++++++++++++++++++++++++++++++- > drivers/of/of_mtd.c | 35 +++ > include/linux/mtd/nand.h | 98 ++++++++ > include/linux/of_mtd.h | 6 + > 5 files changed, 858 insertions(+), 66 deletions(-) > > -- > 1.8.3.2 > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel -- Antoine Ténart, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com -- 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
