mtd: spi-nor: add TB (Top/Bottom) protect support

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Some flash support a bit in the status register that inverts protection
so that it applies to the bottom of the flash, not the top. This yields
additions to the protection range table, as noted in the comments.

Because this feature is not universal to all flash that support
lock/unlock, control it via a new flag.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>

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This commit is contained in:

Brian Norris 2016-01-29 11:25:36 -08:00

parent 76a4707de5

commit 3dd8012a8e

2 changed files with 65 additions and 7 deletions

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70

drivers/mtd/spi-nor/spi-nor.c

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2

include/linux/mtd/spi-nor.h

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