Messages in this thread | | | From | <> | Subject | [PATCH 0/2] mtd: spi-nor: add Global Block Unlock support | Date | Fri, 23 Aug 2019 16:05:01 +0000 |
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From: Tudor Ambarus <tudor.ambarus@microchip.com>
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(-)
-- 2.9.5
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