[v2] mtd: spi-nor: macronix: Add support for MX25L12833F and MX25L12845G

[PATCH v2 0/2] mtd: spi-nor: macronix: Add support for MX25L12833F and MX25L12845G

Cheng Ming Lin posted 2 patches 3 days, 5 hours ago

Diff against v3
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drivers/mtd/spi-nor/macronix.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)

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[PATCH v2 0/2] mtd: spi-nor: macronix: Add support for MX25L12833F and MX25L12845G

Posted by Cheng Ming Lin 3 days, 5 hours ago

From: Cheng Ming Lin <chengminglin@mxic.com.tw>

Add support for Macronix MX25L12833F and MX25L12845G SPI NOR flashes.
These parts share the same JEDEC ID (0xc2, 0x20, 0x18) as the legacy
MX25L12805D.

Changes in v2:
- Patch 1: Changed the fixup hook from late_init to post_bfpt. Since
  the legacy MX25L12805D lacks SFDP, it will not execute post_bfpt.
  This safely isolates the newer MX25L12833F/45G (which support SFDP)
  and enables 4PP for them without breaking the legacy part.
- Patch 1: Added detailed comments inside the fixup function explaining
  the ID collision and the rationale behind the hook choice, as
  suggested by reviewers.
- Patch 2 (New): Added a separate patch to restore the missing .size
  and .no_sfdp_flags fallback parameters for the legacy MX25L12805D.
  This fixes a probe failure caused by a previous commit and includes
  the appropriate Fixes and Cc: stable tags.

Cheng Ming Lin (2):
  mtd: spi-nor: Add support for MX25L12833F and MX25L12845G
  mtd: spi-nor: macronix: Restore fallback parameters for MX25L12805D

 drivers/mtd/spi-nor/macronix.c | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

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2.25.1