mtd: spi-nor: support dual, quad, and WP for Gigadevice
authorBrian Norris <computersforpeace@gmail.com>
Fri, 1 Jul 2016 22:16:22 +0000 (15:16 -0700)
committerBrian Norris <computersforpeace@gmail.com>
Thu, 14 Jul 2016 00:36:01 +0000 (17:36 -0700)
commit595f0e101d4c250010ca0763ae15b863f01bb90e
treef3274cc4504c0e8950f1362822180657fa40c518
parentcebc1fd0690713ec86ab27e606daf9967a2833ab
mtd: spi-nor: support dual, quad, and WP for Gigadevice

Gigadevice flash support BP{0,1,2,3,4} bits, where BP3 means the same as
the existing supported TB (Top/Bottom), and BP4 means the same as the
not-yet-supported 4K bit used on other flash (e.g., Winbond). Let's
support lock/unlock with the same feature flags as w25q32dw/w25q64dw.

Tested on gd25lq64c, but I checked datasheets for the other 3, to make
sure.

While I was at it, I noticed that these all support dual and quad as
well. I noted them, but can't test them at the moment, since my test
system only supports standard 1x SPI.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
drivers/mtd/spi-nor/spi-nor.c