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Commit 9648388f authored by Brian Norris's avatar Brian Norris
Browse files

mtd: spi-nor: support lock/unlock for a few Winbond chips 



These are recent Winbond models that are known to have lock/unlock
support via writing the Status Register, and that also support the TB
(Top/Bottom) protection bit.

Tested on w25q32dw.

[Note on style: these entries are getting pretty long lines, so I picked
a style that seems reasonable for splitting up the flags separate from
the other mostly-similar fields.]

Signed-off-by: default avatarBrian Norris <computersforpeace@gmail.com>
Reviewed-by: default avatarEzequiel Garcia <ezequiel@vanguardiasur.com.ar>
Tested-by: default avatarEzequiel Garcia <ezequiel@vanguardiasur.com.ar>
parent 3dd8012a

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

+15 −3
Original line number Diff line number Diff line
@@ -963,11 +963,23 @@ static const struct flash_info spi_nor_ids[] = { 
	{ "w25x16", INFO(0xef3015, 0, 64 * 1024,  32, SECT_4K) },

	{ "w25x32", INFO(0xef3016, 0, 64 * 1024,  64, SECT_4K) },

	{ "w25q32", INFO(0xef4016, 0, 64 * 1024,  64, SECT_4K) },

	{ "w25q32dw", INFO(0xef6016, 0, 64 * 1024,  64, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },

	{

		"w25q32dw", INFO(0xef6016, 0, 64 * 1024,  64,

			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |

			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)

	},

	{ "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },

	{ "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },

	{ "w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },

	{ "w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },

	{

		"w25q64dw", INFO(0xef6017, 0, 64 * 1024, 128,

			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |

			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)

	},

	{

		"w25q128fw", INFO(0xef6018, 0, 64 * 1024, 256,

			SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ |

			SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB)

	},

	{ "w25q80", INFO(0xef5014, 0, 64 * 1024,  16, SECT_4K) },

	{ "w25q80bl", INFO(0xef4014, 0, 64 * 1024,  16, SECT_4K) },

	{ "w25q128", INFO(0xef4018, 0, 64 * 1024, 256, SECT_4K) },