forked from Minki/linux
dcc75ddea1
A fairly quiet release for SPI, the biggest thing is the conversion to
use GPIO descriptors which is now 90% done but still needs some
stragglers converting.
- Support for inter-word delays.
- Conversion of the core and most drivers to use GPIO descriptors for
GPIO controlled chip selects.
- New drivers for NXP FlexSPI and QuadSPI, SiFive and Spreadtrum.
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Merge tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A fairly quiet release for SPI, the biggest thing is the conversion to
use GPIO descriptors which is now 90% done but still needs some
stragglers converting.
Summary:
- Support for inter-word delays
- Conversion of the core and most drivers to use GPIO descriptors for
GPIO controlled chip selects
- New drivers for NXP FlexSPI and QuadSPI, SiFive and Spreadtrum"
* tag 'spi-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (104 commits)
spi: sh-msiof: Restrict bits per word to 8/16/24/32 on R-Car Gen2/3
spi: sifive: Remove redundant dev_err call in sifive_spi_probe()
spi: sifive: Remove spi_master_put in sifive_spi_remove()
spi: spi-gpio: fix SPI_CS_HIGH capability
spi: pxa2xx: Setup maximum supported DMA transfer length
spi: sifive: Add driver for the SiFive SPI controller
spi: sifive: Add DT documentation for SiFive SPI controller
spi: sprd: Add a prefix for SPI DMA channel macros
spi: sprd: spi: sprd: Add DMA mode support
dt-bindings: spi: Add the DMA properties for the SPI dma mode
spi: sprd: Add the SPI irq function for the SPI DMA mode
dt-bindings: spi: imx: Add an entry for the i.MX8QM compatible
spi: use gpio[d]_set_value_cansleep for setting chipselect GPIO
spi: gpio: Advertise support for SPI_CS_HIGH
spi: sh-msiof: Replace spi_master by spi_controller
spi: sh-hspi: Replace spi_master by spi_controller
spi: rspi: Replace spi_master by spi_controller
spi: atmel-quadspi: add support for sam9x60 qspi controller
dt-bindings: spi: atmel-quadspi: QuadSPI driver for Microchip SAM9X60
spi: atmel-quadspi: add support for named peripheral clock
...
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115 lines
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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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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 SPI_ASPEED_SMC
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tristate "Aspeed flash controllers in SPI mode"
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depends on ARCH_ASPEED || COMPILE_TEST
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depends on HAS_IOMEM && OF
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help
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This enables support for the Firmware Memory controller (FMC)
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in the Aspeed AST2500/AST2400 SoCs when attached to SPI NOR chips,
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and support for the SPI flash memory controller (SPI) for
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the host firmware. The implementation only 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 || ARM64 || COMPILE_TEST)
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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_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
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help
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This enables support for hisilicon SPI-NOR flash controller.
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config SPI_MTK_QUADSPI
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tristate "MediaTek Quad SPI controller"
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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_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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config SPI_INTEL_SPI
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tristate
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config SPI_INTEL_SPI_PCI
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tristate "Intel PCH/PCU SPI flash PCI driver (DANGEROUS)"
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depends on X86 && PCI
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select SPI_INTEL_SPI
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help
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This enables PCI support for the Intel PCH/PCU SPI controller in
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master mode. This controller is present in modern Intel hardware
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and is used to hold BIOS and other persistent settings. Using
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this driver it is possible to upgrade BIOS directly from Linux.
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Say N here unless you know what you are doing. Overwriting the
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SPI flash may render the system unbootable.
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To compile this driver as a module, choose M here: the module
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will be called intel-spi-pci.
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config SPI_INTEL_SPI_PLATFORM
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tristate "Intel PCH/PCU SPI flash platform driver (DANGEROUS)"
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depends on X86
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select SPI_INTEL_SPI
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help
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This enables platform support for the Intel PCH/PCU SPI
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controller in master mode. This controller is present in modern
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Intel hardware and is used to hold BIOS and other persistent
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settings. Using this driver it is possible to upgrade BIOS
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directly from Linux.
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Say N here unless you know what you are doing. Overwriting the
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SPI flash may render the system unbootable.
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To compile this driver as a module, choose M here: the module
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will be called intel-spi-platform.
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config SPI_STM32_QUADSPI
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tristate "STM32 Quad SPI controller"
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depends on ARCH_STM32 || COMPILE_TEST
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help
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This enables support for the STM32 Quad SPI controller.
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We only connect the NOR to this controller.
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endif # MTD_SPI_NOR
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