[PATCH v3 0/2] mtd: spi-nand: Add support for randomizer feature

From: Cheng Ming Lin

Date: Fri Jan 30 2026 - 04:25:46 EST


From: Cheng Ming Lin <chengminglin@xxxxxxxxxxx>

This patch series introduces randomizer support for SPI NAND devices.

Patch 1 adds the hook and initialization logic to the core framework.
Patch 2 implements the randomizer setting specifically for Macronix
chips (MX35LF/UF series) and allows control via device tree.

v3:
* Revert the device tree property to the vendor-specific
"mxic,randomizer-enable" to strictly follow vendor-specific bindings.

* Update the 'set_randomizer' callback signature to accept a boolean
'enable' argument, allowing the feature to be explicitly enabled or
disabled.

* Switch the implementation to use the standard SET_FEATURE command
to modify the Configuration Register (0x10), replacing the previous
special program command method.

v2:
* Create a global NAND DT property

Cheng Ming Lin (2):
mtd: spi-nand: Add support for randomizer
mtd: spi-nand: macronix: Enable randomizer support

drivers/mtd/nand/spi/core.c | 21 +++++++++++++++
drivers/mtd/nand/spi/macronix.c | 47 ++++++++++++++++++++++++++-------
include/linux/mtd/spinand.h | 9 +++++++
3 files changed, 67 insertions(+), 10 deletions(-)

--
2.25.1