[PATCH v2 0/5] mtd: rawnand: sunxi: Fix user data length for H6

[Michael Nazzareno Trimarchi]

Hi Andre

On Mon, Apr 27, 2026 at 2:28 PM Andre Przywara <andre.przywara at arm.com>
wrote:

> Dario, Michael,
>
> are you going to take those patches eventually, or are they supposed to
> go through the sunxi tree? Somehow patchwork put this on my plate, but
> MAINTAINERS says it's yours.
>
> I will have a final look at those patches, but I think they are fine
> since their counterparts passed the kernel reviews ;-)
>
>
Company projects are stressing me out. I will check today with Dario

Michael

Cheers,
> Andre
>
> On 3/27/26 15:05, Richard Genoud wrote:
> > This series introduces the correct usage of user data length for
> > H6/H616.
> > If the older SoCs must use a fixed value of 4 user data bytes for each
> > ECC step, the H6 can have a different value for each step.
> >
> > In the first round, the behavior was kept as the one used by A10.
> > But we have multiple choices:
> > - do like A10 like before (and not use all OOB)
> > - do like the vendor kernel (different from A10, but not using all OOB)
> > - use the whole OOB for user data bytes
> >
> > In this second round, the third approach is implemented.
> >
> > All patches but the 4th are code cleaning.
> > The 4th patch enables using a variable user data length for H6/H616
> > along with maximizing it.
> >
> > A similar series has been accepted for Linux:
> >
> https://lore.kernel.org/lkml/20260317142437.580204-1-richard.genoud@bootlin.com/
> >
> > Changes from v1:
> > - gather reviewed-by
> > - clean sunxi_nand_chip_init()
> > - use all possible remaining OOB space for user data bytes
> >
> > Richard Genoud (5):
> >    mtd: rawnand: sunxi: Replace hard coded value by a define
> >    mtd: rawnand: sunxi: make the code mode self-explanatory
> >    mtd: rawnand: sunxi: clean sunxi_nand_chip_init()
> >    mtd: rawnand: sunxi: introduce variable user data length
> >    mtd: nand: raw: sunxi_spl: remove user data length reset
> >
> >   drivers/mtd/nand/raw/sunxi_nand.c     | 292 +++++++++++++++++++-------
> >   drivers/mtd/nand/raw/sunxi_nand.h     |   3 +
> >   drivers/mtd/nand/raw/sunxi_nand_spl.c | 129 +++++++++---
> >   3 files changed, 324 insertions(+), 100 deletions(-)
> >
> >
> > base-commit: ba7bf918dafcd093ad733b07ba490baeb20cf5da
>
>

-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael at amarulasolutions.com
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