# SPDX-License-Identifier: GPL-2.0-only
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menuconfig MTD_SPI_NOR
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tristate "SPI NOR device support"
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depends on MTD
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depends on MTD && SPI_MASTER
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select SPI_MEM
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help
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This is the framework for the SPI NOR which can be used by the SPI
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device drivers and the SPI NOR device driver.
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if MTD_SPI_NOR
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config MTD_SPI_NOR_USE_4K_SECTORS
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bool "Use small 4096 B erase sectors"
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default y
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help
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Many flash memories support erasing small (4096 B) sectors. Depending
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on the usage this feature may provide performance gain in comparison
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to erasing whole blocks (32/64 KiB).
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Changing a small part of the flash's contents is usually faster with
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small sectors. On the other hand erasing should be faster when using
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64 KiB block instead of 16 × 4 KiB sectors.
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Please note that some tools/drivers/filesystems may not work with
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4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
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config MTD_SPI_NOR_MISC
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bool "Support SPI NOR misc device"
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default n
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help
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Support obtaining flash information through the ioctl interface
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of the misc device.
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source "drivers/mtd/spi-nor/controllers/Kconfig"
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endif # MTD_SPI_NOR
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