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https://github.com/brain-hackers/u-boot-brain
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5c99045699
PIC32 internal flash devices are parallel NOR flash divided into number of banks to allow erase-programming in one while fetch and execution continues on other. As the flash banks are memory mapped stored code can be executed directly from flash (XIP), also there is additional hardware logic to prefetch and cache contents to improve execution performance. These flash can also be used to store user data (like environment). Flash erase and programming are handled by on-chip NVM controller. Driver implemented driver model but MTD is not really support. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: Simon Glass <sjg@chromium.org>
43 lines
1.3 KiB
Plaintext
43 lines
1.3 KiB
Plaintext
menu "MTD Support"
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config MTD
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bool "Enable Driver Model for MTD drivers"
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depends on DM
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help
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Enable driver model for Memory Technology Devices (MTD), such as
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flash, RAM and similar chips, often used for solid state file
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systems on embedded devices.
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config CFI_FLASH
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bool "Enable Driver Model for CFI Flash driver"
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depends on MTD
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help
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The Common Flash Interface specification was developed by Intel,
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AMD and other flash manufactures. It provides a universal method
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for probing the capabilities of flash devices. If you wish to
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support any device that is CFI-compliant, you need to enable this
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option. Visit <http://www.amd.com/products/nvd/overview/cfi.html>
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for more information on CFI.
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config ALTERA_QSPI
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bool "Altera Generic Quad SPI Controller"
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depends on MTD
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help
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This enables access to Altera EPCQ/EPCS flash chips using the
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Altera Generic Quad SPI Controller. The controller converts SPI
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NOR flash to parallel flash interface. Please find details on the
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"Embedded Peripherals IP User Guide" of Altera.
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config FLASH_PIC32
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bool "Microchip PIC32 Flash driver"
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depends on MACH_PIC32 && MTD
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help
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This enables access to Microchip PIC32 internal non-CFI flash
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chips through PIC32 Non-Volatile-Memory Controller.
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endmenu
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source "drivers/mtd/nand/Kconfig"
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source "drivers/mtd/spi/Kconfig"
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