Brian, On Wed, Mar 25, 2015 at 3:02 PM, Richard Weinberger <rich...@nod.at> wrote: > Some Micron NAND chips offer an on-die ECC (AKA internal ECC) feature, > in this mode all ECC is automatically performed by the NAND chips itself. > Most user are happy with software ECC or hardware ECC performed by the > NFC (NAND flash controller). > But there are situations where multi-bit hardware ECC is not available, > some AT91 based SoCs for example, and due to CPU limitations > software ECC is not feasible. In such situations on-die ECC can help. > People are using that feature in the wild for years. > As this feature is not supported in mainline these guys are using out-of-tree > patches of doubtful quality. That's why I did that patch series. > > This series is based on patches by David Mosberger and in-house patches > by a customer. > > Currently I'm not happy with patch 2/3. > To allow raw access (access without ECC) we have to disable/enable > on-die ECC mode in various NAND core functions. > I could also think of dropping support for raw access completely. > > I'd like to thank Ammonit Measurement GmbH for making this contribution to > the MTD community happen! > > [PATCH 1/3] mtd: nand: Add on-die ECC support > [PATCH 2/3] mtd: nand: Add support for raw access when using on-die > [PATCH 3/3] mtd: nand: Wire up on-die ECC support
As the merge window is almost over I fear this patches won't make it into v4.1. Do you want me to resent them for the v4.2 cycle or are they already on your TODO list? :) -- Thanks, //richard -- 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/
