linux-kernel - [PATCH v2 00/19] mtd: spinand: Add octal support

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Message-Id: <20250403-winbond-6-14-rc1-octal-v2-0-7846bd88fe83@bootlin.com>
Date: Thu, 03 Apr 2025 11:19:10 +0200
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Richard Weinberger <richard@....at>, 
 Vignesh Raghavendra <vigneshr@...com>, Santhosh Kumar K <s-k6@...com>
Cc: Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Pratyush Yadav <pratyush@...nel.org>, Michael Walle <michael@...le.cc>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Steam Lin <stlin2@...bond.com>, linux-mtd@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Miquel Raynal <miquel.raynal@...tlin.com>
Subject: [PATCH v2 00/19] mtd: spinand: Add octal support

spi-mem and SPI NOR already have octal support, but there are octal SPI
NAND chips as well, which will be supported after this series. For now
we focus on SDR modes or mixed modes, where the opcode indicates the
content of the operation.

Support for three Winbond chips is added: W35NxxJW (xx: 01, 02, 04).

The series is mostly split into two parts:

- Renaming the op macros to clearly indicate the number of lines and
  whether each subpart of the operation is SDR or DTR, in order to
  clarify them.

  This has been discussed and agreed upon with Tudor in a
  previous discussion:
  https://lore.kernel.org/linux-mtd/4ca13ef9-062f-4952-9588-c14f22867bf3@linaro.org/

- Adding support for the various octal operations which can be
  supported and using them in the Winbond driver.

---
Changes in v2:
- Collected tags.
- Squashed and re-organized the order of some patches following the
  discussion with Tudor.
- Link to v1: https://lore.kernel.org/r/20250307-winbond-6-14-rc1-octal-v1-0-45c1e074ad74@bootlin.com

---
Miquel Raynal (19):
      mtd: spinand: Use more specific naming for the reset op
      mtd: spinand: Use more specific naming for the write enable/disable op
      mtd: spinand: Use more specific naming for the read ID op
      mtd: spinand: Use more specific naming for the get/set feature ops
      mtd: spinand: Use more specific naming for the erase op
      mtd: spinand: Use more specific naming for the page read op
      mtd: spinand: Use more specific naming for the (single) read from cache ops
      mtd: spinand: Use more specific naming for the (dual output) read from cache ops
      mtd: spinand: Use more specific naming for the (dual IO) read from cache ops
      mtd: spinand: Use more specific naming for the (quad output) read from cache ops
      mtd: spinand: Use more specific naming for the (quad IO) read from cache ops
      mtd: spinand: Use more specific naming for the program execution op
      mtd: spinand: Use more specific naming for the (single) program load op
      mtd: spinand: Use more specific naming for the (quad) program load op
      mtd: spinand: Define octal operations
      mtd: spinand: winbond: Rename DTR variants
      mtd: spinand: winbond: Add support for W35N01JW in single mode
      mtd: spinand: winbond: Add octal support
      mtd: spinand: winbond: Add support for W35N02JW and W35N04JW chips

 drivers/mtd/nand/spi/alliancememory.c |  20 +++---
 drivers/mtd/nand/spi/ato.c            |  14 ++--
 drivers/mtd/nand/spi/core.c           |  18 ++---
 drivers/mtd/nand/spi/esmt.c           |  16 ++---
 drivers/mtd/nand/spi/foresee.c        |  16 ++---
 drivers/mtd/nand/spi/gigadevice.c     |  60 ++++++++--------
 drivers/mtd/nand/spi/macronix.c       |  16 ++---
 drivers/mtd/nand/spi/micron.c         |  34 ++++-----
 drivers/mtd/nand/spi/paragon.c        |  20 +++---
 drivers/mtd/nand/spi/skyhigh.c        |  20 +++---
 drivers/mtd/nand/spi/toshiba.c        |  22 +++---
 drivers/mtd/nand/spi/winbond.c        | 128 +++++++++++++++++++++++++++-------
 drivers/mtd/nand/spi/xtx.c            |  20 +++---
 include/linux/mtd/spinand.h           | 121 ++++++++++++++++++++------------
 14 files changed, 318 insertions(+), 207 deletions(-)
---
base-commit: fec9f7d6629901decc7b4ecb6170913c02c2f213
change-id: 20250214-winbond-6-14-rc1-octal-6f7db6be0204

Best regards,
-- 
Miquel Raynal <miquel.raynal@...tlin.com>