config SPI_FLASH
bool "Legacy SPI Flash Interface support"
+ depends on SPI
+ select SPI_MEM
help
Enable the legacy SPI flash support. This will include basic
standard support for things like probing, read / write, and
If unsure, say N
+config SF_DEFAULT_BUS
+ int "SPI Flash default bus identifier"
+ depends on SPI_FLASH || DM_SPI_FLASH
+ default 0
+ help
+ The default bus may be provided by the platform
+ to handle the common case when only a single serial
+ flash is present on the system.
+
+config SF_DEFAULT_CS
+ int "SPI Flash default Chip-select"
+ depends on SPI_FLASH || DM_SPI_FLASH
+ default 0
+ help
+ The default chip select may be provided by the platform
+ to handle the common case when only a single serial
+ flash is present on the system.
+
+config SF_DEFAULT_MODE
+ hex "SPI Flash default mode (see include/spi.h)"
+ depends on SPI_FLASH || DM_SPI_FLASH
+ default 3
+ help
+ The default mode may be provided by the platform
+ to handle the common case when only a single serial
+ flash is present on the system.
+ Not used for boot with device tree; the SPI driver reads
+ speed and mode from platdata values computed from
+ available node.
+
+config SF_DEFAULT_SPEED
+ int "SPI Flash default speed in Hz"
+ depends on SPI_FLASH || DM_SPI_FLASH
+ default 1000000
+ help
+ The default speed may be provided by the platform
+ to handle the common case when only a single serial
+ flash is present on the system.
+ Not used for boot with device tree; the SPI driver reads
+ speed and mode from platdata values computed from
+ available node.
+
+if SPI_FLASH
+
+config SPI_FLASH_SFDP_SUPPORT
+ bool "SFDP table parsing support for SPI NOR flashes"
+ depends on !SPI_FLASH_BAR
+ help
+ Enable support for parsing and auto discovery of parameters for
+ SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP)
+ tables as per JESD216 standard.
+
+config SPI_FLASH_BAR
+ bool "SPI flash Bank/Extended address register support"
+ 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.
+
+config SF_DUAL_FLASH
+ bool "SPI DUAL flash memory support"
+ help
+ Enable this option to support two flash memories connected to a single
+ controller. Currently Xilinx Zynq qspi supports this.
+
+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_ISSI
+ bool "ISSI SPI flash support"
+ help
+ Add support for various ISSI SPI flash chips (ISxxx)
+
+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)
+
+config SPI_FLASH_XMC
+ bool "XMC SPI flash support"
+ help
+ Add support for various XMC (Wuhan Xinxin Semiconductor
+ Manufacturing Corp.) SPI flash chips (XM25xxx)
+
+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
+
endmenu # menu "SPI Flash Support"
projects / oweals / u-boot.git / blobdiff