[PATCH v5 0/5] Add support for SPI-NOR Macronix OTP

Erez Geva
2024-09-20T18:13:11Z

From: Erez Geva <ErezGeva2@gmail.com>

Add support for SPI-NOR Macronix OTP.
And add MX25L12833F with OTP.

v2:
Improve description of mx25l12833f.
Add note about mx25l12833f using the same JEDEC ID as mx25l12805d.

v3:
Improve description.
Rename _nor_send_cmd() to spi_nor_send_cmd_internal().
Remove MX25L12833F specific changes.
Add reading SFDP to all Macronix chips.
Add support of reading OTP parameters from device tree.
Reorgenize patches to 2 SPI-NOR patches and 2 Macronix patches.
Testing with MX25L3233F using BeagleBone Black.
Test results are in "mtd: spi-nor: macronix: add manufacturer flags" patch.

v4:
Add DT bindings of new OTP parameters.
Test OTP with 'flash_otp_write' and 'flash_otp_lock'.
Fix macronix_nor_otp_lock() and macronix_nor_otp_is_locked(),
Macronix uses a single flag for all regions.

v5:
Fix DT binding errors.
Fix functions description of Macronix OTP functions.

Erez Geva (5):
mtd: spi-nor: core: add manufacturer flags
mtd: spi-nor: core: add generic functions
dt-bindings: mtd: spi-nor: add OTP parameters
mtd: spi-nor: macronix: add support for OTP
mtd: spi-nor: macronix: add manufacturer flags

.../bindings/mtd/jedec,spi-nor.yaml | 39 ++++
drivers/mtd/spi-nor/core.c | 166 +++++++++++++----
drivers/mtd/spi-nor/core.h | 34 +---
drivers/mtd/spi-nor/macronix.c | 168 ++++++++++++++++++
drivers/mtd/spi-nor/otp.c | 6 +-
drivers/mtd/spi-nor/winbond.c | 2 +-
include/linux/mtd/spi-nor.h | 9 +
7 files changed, 356 insertions(+), 68 deletions(-)

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2.39.5