+menu "SPI Flash Support"
+
config DM_SPI_FLASH
bool "Enable Driver Model for SPI flash"
- depends on DM && SPI
+ depends on DM && DM_SPI
help
Enable driver model for SPI flash. This SPI flash interface
(spi_flash_probe(), spi_flash_write(), etc.) is then
during the transition parent. SPI and SPI flash must be
enabled together (it is not possible to use driver model
for one and not the other).
+
+config SPI_FLASH_SANDBOX
+ bool "Support sandbox SPI flash device"
+ depends on SANDBOX && DM_SPI_FLASH
+ help
+ Since sandbox cannot access real devices, an emulation mechanism is
+ provided instead. Drivers can be connected up to the sandbox SPI
+ bus (see CONFIG_SANDBOX_SPI) and SPI traffic will be routed to this
+ device. Typically the contents of the emulated SPI flash device is
+ stored in a file on the host filesystem.
+
+config SPI_FLASH
+ bool "Legacy SPI Flash Interface support"
+ help
+ Enable the legacy SPI flash support. This will include basic
+ standard support for things like probing, read / write, and
+ erasing through cmd_sf interface.
+
+ If unsure, say N
+
+config SPI_FLASH_BAR
+ bool "SPI flash Bank/Extended address register support"
+ depends on SPI_FLASH
+ help
+ Enable the SPI flash Bank/Extended address register support.
+ Bank/Extended address registers are used to access the flash
+ which has size > 16MiB in 3-byte addressing.
+
+if SPI_FLASH
+
+config SPI_FLASH_ATMEL
+ bool "Atmel SPI flash support"
+ help
+ Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
+
+config SPI_FLASH_EON
+ bool "EON SPI flash support"
+ help
+ Add support for various EON SPI flash chips (EN25xxx)
+
+config SPI_FLASH_GIGADEVICE
+ bool "GigaDevice SPI flash support"
+ help
+ Add support for various GigaDevice SPI flash chips (GD25xxx)
+
+config SPI_FLASH_MACRONIX
+ bool "Macronix SPI flash support"
+ help
+ Add support for various Macronix SPI flash chips (MX25Lxxx)
+
+config SPI_FLASH_SPANSION
+ bool "Spansion SPI flash support"
+ help
+ Add support for various Spansion SPI flash chips (S25FLxxx)
+
+config SPI_FLASH_STMICRO
+ bool "STMicro SPI flash support"
+ help
+ Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
+
+config SPI_FLASH_SST
+ bool "SST SPI flash support"
+ help
+ Add support for various SST SPI flash chips (SST25xxx)
+
+config SPI_FLASH_WINBOND
+ bool "Winbond SPI flash support"
+ help
+ Add support for various Winbond SPI flash chips (W25xxx)
+
+endif
+
+config SPI_FLASH_USE_4K_SECTORS
+ bool "Use small 4096 B erase sectors"
+ depends on SPI_FLASH
+ default y
+ help
+ Many flash memories support erasing small (4096 B) sectors. Depending
+ on the usage this feature may provide performance gain in comparison
+ to erasing whole blocks (32/64 KiB).
+ Changing a small part of the flash's contents is usually faster with
+ small sectors. On the other hand erasing should be faster when using
+ 64 KiB block instead of 16 × 4 KiB sectors.
+
+ Please note that some tools/drivers/filesystems may not work with
+ 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
+
+config SPI_FLASH_DATAFLASH
+ bool "AT45xxx DataFlash support"
+ depends on SPI_FLASH && DM_SPI_FLASH
+ help
+ Enable the access for SPI-flash-based AT45xxx DataFlash chips.
+ DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
+ in each chip, which may be used for double buffered I/O; but this
+ driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
+
+ Sometimes DataFlash is packaged in MMC-format cards, although the
+ MMC stack can't (yet?) distinguish between MMC and DataFlash
+ protocols during enumeration.
+
+ If unsure, say N
+
+config SPI_FLASH_MTD
+ bool "SPI Flash MTD support"
+ depends on SPI_FLASH
+ help
+ Enable the MTD support for spi flash layer, this adapter is for
+ translating mtd_read/mtd_write commands into spi_flash_read/write
+ commands. It is not intended to use it within sf_cmd or the SPI
+ flash subsystem. Such an adapter is needed for subsystems like
+ UBI which can only operate on top of the MTD layer.
+
+ If unsure, say N
+
+if SPL
+
+config SPL_SPI_SUNXI
+ bool "Support for SPI Flash on Allwinner SoCs in SPL"
+ depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUNXI_H3_H5 || MACH_SUN50I
+ ---help---
+ Enable support for SPI Flash. This option allows SPL to read from
+ sunxi SPI Flash. It uses the same method as the boot ROM, so does
+ not need any extra configuration.
+
+endif
+
+endmenu # menu "SPI Flash Support"
projects / u-boot / blobdiff