[PATCH v2 0/4] mtd: spi-nor: Parse BFPT to determine the 4-Byte Address Mode

From: Tudor Ambarus
Date: Wed Mar 09 2022 - 09:42:24 EST


Get the 4-Byte Address mode method from BFPT and favor it in the detriment
of the "default" set_4byte_addr_mode method or the methods set by vendors.
This may introduce some regressions if flashes have wrong BFPT data. The
fix is to introduce post_bfpt() hooks and fix where needed. We should let
the core/sfdp do the params initialization, and do vendor specific updates
just where needed.

This patch set depends on:
https://lore.kernel.org/lkml/20220304093011.198173-1-tudor.ambarus@xxxxxxxxxxxxx/
which depends on:
https://lore.kernel.org/lkml/20220228111712.111737-1-tudor.ambarus@xxxxxxxxxxxxx/

You can find a branch containing the entire chain at:
git@xxxxxxxxxx:ambarus/linux-0day.git spi-nor/next-bfpt-4byte-addr

v2: drop quad enable patch

Tudor Ambarus (4):
mtd: spi-nor: Parse BFPT to determine the 4-Byte Address Mode methods
mtd: spi-nor: Update name and description of the set_4byte_addr_mode
BFPT methods
mtd: spi-nor: Favor the BFPT-parsed set_4byte_addr_mode method
mtd: spi-nor: sfdp: Keep SFDP definitions private

drivers/mtd/spi-nor/core.c | 70 +----------
drivers/mtd/spi-nor/core.h | 1 -
drivers/mtd/spi-nor/macronix.c | 9 +-
drivers/mtd/spi-nor/micron-st.c | 32 +----
drivers/mtd/spi-nor/sfdp.c | 199 ++++++++++++++++++++++++++++++++
drivers/mtd/spi-nor/sfdp.h | 57 +--------
drivers/mtd/spi-nor/winbond.c | 18 +--
7 files changed, 234 insertions(+), 152 deletions(-)

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2.25.1