[PATCH 0/2] mtd: spi-nor: add Global Block Unlock support
From: Tudor.Ambarus
Date: Fri Aug 23 2019 - 12:05:06 EST
From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
This is similar with what other nor flashes are doing by clearing the
block protection bits from the status register: disable the write
protection after a power-on reset cycle.
The Global Block-Protection Unlock command offers a single command cycle
that unlocks the entire memory array. Prefer this method for higher
throughput.
Tested on the sst26vf064b flash using the atmel-quadspi driver.
Tudor Ambarus (2):
mtd: spi-nor: add Global Block Unlock support
mtd: spi-nor: unlock global block protection on sst26vf064b
drivers/mtd/spi-nor/spi-nor.c | 51 +++++++++++++++++++++++++++++++++++++++++--
include/linux/mtd/spi-nor.h | 1 +
2 files changed, 50 insertions(+), 2 deletions(-)
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2.9.5