Messages in this thread | | | Date | Wed, 24 May 2017 13:25:08 +0200 | From | Boris Brezillon <> | Subject | Re: pxa3xx-nand failing to find device on linux-next |
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On Wed, 24 May 2017 13:23:01 +0200 Boris Brezillon <boris.brezillon@free-electrons.com> wrote:
> Hi Chris, > > On Wed, 24 May 2017 09:36:56 +0000 > Chris Packham <Chris.Packham@alliedtelesis.co.nz> wrote: > > > On 23/05/17 17:27, Chris Packham wrote: > > > Hi, > > > > > > I'm doing some testing on linux-next and I'm finding that my nand flash > > > has disappeared. > > > > > > pxa3xx-nand f10d0000.flash: This platform can't do DMA on this device > > > pxa3xx-nand f10d0000.flash: non-supported command ef > > > pxa3xx-nand f10d0000.flash: non-supported command ee > > > pxa3xx-nand f10d0000.flash: non-supported command ef > > > pxa3xx-nand f10d0000.flash: non-supported command ee > > > On-die ECC forcefully enabled, not supported > > > nand: No NAND device found > > > pxa3xx-nand f10d0000.flash: failed to scan nand at cs 0 > > > > > > This was working around 4.11. I'll try to do some more digging tomorrow > > > to narrow down a failure point but I thought I'd send this out now just > > > in case it rings any bells. > > > > > > The board I'm using (DB-88F6820-AMC) is unfortunately out-of tree but it > > > should be pretty close to the armada-388-db. I can make my dts available > > > if it's helpful. > > > > Still works on 4.12-rc2. Fails on next-20170524. > > > > This appears to be due to commit b566d9c055de ("mtd: nand: add support > > for Micron on-die ECC"). Which based on the description seems intentional. > > > > Since I have access to a hardware platform that has a micron flash with > > ECC forcefully enabled how can I help to get this implemented. > > Can you try with this patch applied [1]?
Sorry, wrong patch. Can you try this one [1] instead?
[1]http://code.bulix.org/pkfhmi-135875
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