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From: Richard Genoud <richard.genoud@bootlin.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>
Cc: Wentao Liang <vulab@iscas.ac.cn>,
	Maxime Ripard <mripard@kernel.org>,
	Boris Brezillon <bbrezillon@kernel.org>,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	linux-mtd@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	Richard Genoud <richard.genoud@bootlin.com>
Subject: [PATCH v3 0/9] mtd: rawnand: sunxi: Fixes user data length for H6
Date: Tue, 17 Mar 2026 15:24:28 +0100	[thread overview]
Message-ID: <20260317142437.580204-1-richard.genoud@bootlin.com> (raw)

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.

The first patches are fixes/code cleaning and the last one enables using
a variable user data length for H6/H616

Changes from v2:
- fix typos in commit messages
- add a patch fixing typos in code comments
- add a patch to remove some dead code in sunxi_nand_ooblayout_free()
- add a patch to change an error prone variable name
- maximize user data length instead of relying on vendor layout

Changes from v1:
- gather Reviewed-by/Acked-by
- rework patch 1 subject (more a code clarification than a fix)
- fix typo in patch 2
- remove patch 4 Fixes since it's not really a fix

Richard Genoud (9):
  mtd: rawnand: sunxi: sunxi_nand_ooblayout_free code clarification
  mtd: rawnand: sunxi: fix sunxi_nfc_hw_ecc_read_extra_oob
  mtd: rawnand: sunxi: do not count BBM bytes twice
  mtd: rawnand: sunxi: replace hard coded value by a define - take2
  mtd: rawnand: sunxi: make the code more self-explanatory
  mtd: rawnand: sunxi: remove dead code
  mtd: rawnand: sunxi: change error prone variable name
  mtd: rawnand: sunxi: fix typos in comments
  mtd: rawnand: sunxi: introduce maximize variable user data length

 drivers/mtd/nand/raw/sunxi_nand.c | 381 +++++++++++++++++++++++-------
 1 file changed, 294 insertions(+), 87 deletions(-)


base-commit: 11439c4635edd669ae435eec308f4ab8a0804808

             reply	other threads:[~2026-03-17 14:24 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-17 14:24 Richard Genoud [this message]
2026-03-17 14:24 ` [PATCH v3 1/9] mtd: rawnand: sunxi: sunxi_nand_ooblayout_free code clarification Richard Genoud
2026-03-18  7:15   ` Richard GENOUD
2026-03-17 14:24 ` [PATCH v3 2/9] mtd: rawnand: sunxi: fix sunxi_nfc_hw_ecc_read_extra_oob Richard Genoud
2026-03-17 14:24 ` [PATCH v3 3/9] mtd: rawnand: sunxi: do not count BBM bytes twice Richard Genoud
2026-03-17 14:24 ` [PATCH v3 4/9] mtd: rawnand: sunxi: replace hard coded value by a define - take2 Richard Genoud
2026-03-17 14:24 ` [PATCH v3 5/9] mtd: rawnand: sunxi: make the code more self-explanatory Richard Genoud
2026-03-17 14:24 ` [PATCH v3 6/9] mtd: rawnand: sunxi: remove dead code Richard Genoud
2026-03-17 14:34   ` Miquel Raynal
2026-03-17 14:24 ` [PATCH v3 7/9] mtd: rawnand: sunxi: change error prone variable name Richard Genoud
2026-03-17 14:24 ` [PATCH v3 8/9] mtd: rawnand: sunxi: fix typos in comments Richard Genoud
2026-03-17 14:24 ` [PATCH v3 9/9] mtd: rawnand: sunxi: introduce maximize variable user data length Richard Genoud
2026-03-25 14:29 ` [PATCH v3 0/9] mtd: rawnand: sunxi: Fixes user data length for H6 Miquel Raynal

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