WD MyCloud Ex, Armada-370, pxa3xx-nand, marvell-nfc

[Richard Weinberger]

David,

On Mon, Dec 14, 2020 at 9:08 AM David Schaefer
<david.tillmann.schaefer at gmail.com> wrote:
>
> Hi,
>
> I am trying to upgrade to a more recent kernel. I face the issue that
> I am missing the /dev/mtdblock1-6 devices. I have tracked down that
> issue shows up the first time with 4.16.1 and does not exist with
> 4.15.18.
>
> Also I have this initalization during 4.15.18:
>
> > f10d0000.nand: This platform can't do DMA on this device
> > nand: device found, Manufacturer ID: 0xad, Chip ID: 0xda
> > nand: Hynix H27U2G8F2CTR-BC
> > nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
> > pxa3xx-nand f10d0000.nand: ECC strength 16, ECC step size 2048
> > Bad block table found at page 131008, version 0x01
> > Bad block table found at page 130944, version 0x01
> > nand_read_bbt: bad block at 0x00000e7c0000
> > 7 ofpart partitions found on MTD device pxa3xx_nand-0
> > Creating 7 MTD partitions on "pxa3xpxa3xx-nand x_nand-0":
> > 0x000000000000-0x000000500000 : "u-Boot"
> > 0x000000500000-0x000000a00000 : "uImage"
> > 0x000000a00000-0x000000f00000 : "ramdisk"
> > 0x000000f00000-0x00000d800000 : "image.cfs"
> > 0x00000dd00000-0x00000ec00000 : "rescue firmware"
> > 0x00000ec00000-0x000010000000 : "config"
> > 0x00000d800000-0x00000dd00000 : "reserve"
>
> and this with 4.16.1:
>
> > nand: device found, Manufacturer ID: 0xad, Chip ID: 0xda
> > nand: Hynix H27U2G8F2CTR-BC
> > nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
> > marvell-nfc f10d0000.nand: Timeout on CMDD (NDSR: 0x00000080)
> > marvell-nfc f10d0000.nand: Timeout on CMDD (NDSR: 0x00000280)
> > Bad block table not found for chip 0
> > Bad block table not found for chip 0
> > Scanning device for bad blocks
> > Bad eraseblock 1854 at 0x00000e7c0000
>
> I have tried 4.19.161 and 5.4.83 as well but my /dev/mtdblock1-6
> devices keep being missing.
>
> What do I have to do to turn them back on? Do I have to modify my dts
> file for the new driver marvell_nand?
> https://fox-exe.ru/WDMyCloud/WDMyCloud-Mirror/Developing/kernel-4.15.0-rc6/armada-370-wdmc-mirror-gen1.dts

Enabling CONFIG_MTD_NAND_MARVELL should give you the new marvell driver.
IIRC no changes to the dts are needed. Though, there have been some
fixes such as:
f6997bec6af4 ("mtd: rawnand: marvell: fix the chip-select DT parsing logic")

Do you see this failure with both the old and the new marvell drivers?

Maybe Miquel has an idea too.

-- 
Thanks,
//richard