On Tue, 28 Jul 2015 17:19:40 +0200 Boris Brezillon <boris.brezil...@free-electrons.com> wrote:
> Hi Hans, > > Here is a more appropriate answer ;-) > > On Tue, 28 Jul 2015 16:49:58 +0200 > Hans de Goede <hdego...@redhat.com> wrote: > > > Hi, > > > > On 07/28/2015 04:29 PM, Michal Suchanek wrote: > > > Hello, > > > > > > the NAND chips on Cubietech boards are not known to Linux. > > > > > > I used Petros Angelatos' patch from sunxi experimental tree for one chip > > > and > > > added another chip. > > > > > > I hope it's ok to send both patches to avoid merge conflict. > > > > I do not think that these patches are a good idea, this will lead to an > > ever growing manual maintained list of ids, and that is not maintainable > > IMHO. > > > > For Samsung chips we only need the ecc strength and size the rest is already > > detected on the fly, and I've a patch in my personal tree to get the > > ecc strengt and size from the nand without needing to have an entry per > > chip: > > > > https://github.com/jwrdegoede/linux-sunxi/commit/53b335d33232753b7aa70298009158baadf5a6bf > > > > This is IMHO a much better solution. > > Yes, indeed, this is a better approach, but AFAIR, not all Samsung > chips use this layout to expose the ECC strength/size info, and I > guess this is why this method is not used to retrieve the ECC > requirements. At least this was true for Hynix chips (see this thread [1]). [1]http://comments.gmane.org/gmane.linux.drivers.mtd/50252 -- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- 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/