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1dcff2e4ae
This controller driver is used only on ARM but is mostly written
portably so it can build on other arch'es. Unfortunately, at least x86
doesn't provibe readsl()/writesl() accessors. We could possibly fix this
issue in the future by using io{read,write}32_rep() instead, but let's
just drop the architectures we aren't using for now.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
80 lines
2.7 KiB
Plaintext
80 lines
2.7 KiB
Plaintext
menuconfig MTD_SPI_NOR
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tristate "SPI-NOR device support"
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depends on MTD
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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_MT81xx_NOR
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tristate "Mediatek MT81xx SPI NOR flash controller"
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depends on HAS_IOMEM
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help
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This enables access to SPI NOR flash, using MT81xx SPI NOR flash
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controller. This controller does not support generic SPI BUS, it only
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supports SPI NOR Flash.
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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 SPI_ATMEL_QUADSPI
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tristate "Atmel Quad SPI Controller"
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depends on ARCH_AT91 || (ARM && COMPILE_TEST)
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depends on OF && HAS_IOMEM
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help
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This enables support for the Quad SPI controller in master mode.
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This driver does not support generic SPI. The implementation only
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supports SPI NOR.
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config SPI_CADENCE_QUADSPI
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tristate "Cadence Quad SPI controller"
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depends on OF && ARM
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help
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Enable support for the Cadence Quad SPI Flash controller.
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Cadence QSPI is a specialized controller for connecting an SPI
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Flash over 1/2/4-bit wide bus. Enable this option if you have a
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device with a Cadence QSPI controller and want to access the
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Flash as an MTD device.
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config SPI_FSL_QUADSPI
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tristate "Freescale Quad SPI controller"
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depends on ARCH_MXC || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
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depends on HAS_IOMEM
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help
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This enables support for the Quad SPI controller in master mode.
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This controller does not support generic SPI. It only supports
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SPI NOR.
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config SPI_HISI_SFC
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tristate "Hisilicon SPI-NOR Flash Controller(SFC)"
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depends on ARCH_HISI || COMPILE_TEST
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depends on HAS_IOMEM && HAS_DMA
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help
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This enables support for hisilicon SPI-NOR flash controller.
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config SPI_NXP_SPIFI
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tristate "NXP SPI Flash Interface (SPIFI)"
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depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
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depends on HAS_IOMEM
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help
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Enable support for the NXP LPC SPI Flash Interface controller.
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SPIFI is a specialized controller for connecting serial SPI
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Flash. Enable this option if you have a device with a SPIFI
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controller and want to access the Flash as a mtd device.
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endif # MTD_SPI_NOR
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