1 menu "SPI Flash Support"
4 bool "Enable Driver Model for SPI flash"
5 depends on DM && DM_SPI
7 Enable driver model for SPI flash. This SPI flash interface
8 (spi_flash_probe(), spi_flash_write(), etc.) is then
9 implemented by the SPI flash uclass. There is one standard
10 SPI flash driver which knows how to probe most chips
11 supported by U-Boot. The uclass interface is defined in
12 include/spi_flash.h, but is currently fully compatible
13 with the old interface to avoid confusion and duplication
14 during the transition parent. SPI and SPI flash must be
15 enabled together (it is not possible to use driver model
16 for one and not the other).
18 config SPI_FLASH_SANDBOX
19 bool "Support sandbox SPI flash device"
20 depends on SANDBOX && DM_SPI_FLASH
22 Since sandbox cannot access real devices, an emulation mechanism is
23 provided instead. Drivers can be connected up to the sandbox SPI
24 bus (see CONFIG_SANDBOX_SPI) and SPI traffic will be routed to this
25 device. Typically the contents of the emulated SPI flash device is
26 stored in a file on the host filesystem.
29 bool "Legacy SPI Flash Interface support"
31 Enable the legacy SPI flash support. This will include basic
32 standard support for things like probing, read / write, and
33 erasing through cmd_sf interface.
38 bool "SPI flash Bank/Extended address register support"
41 Enable the SPI flash Bank/Extended address register support.
42 Bank/Extended address registers are used to access the flash
43 which has size > 16MiB in 3-byte addressing.
47 config SPI_FLASH_ATMEL
48 bool "Atmel SPI flash support"
50 Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
53 bool "EON SPI flash support"
55 Add support for various EON SPI flash chips (EN25xxx)
57 config SPI_FLASH_GIGADEVICE
58 bool "GigaDevice SPI flash support"
60 Add support for various GigaDevice SPI flash chips (GD25xxx)
62 config SPI_FLASH_MACRONIX
63 bool "Macronix SPI flash support"
65 Add support for various Macronix SPI flash chips (MX25Lxxx)
67 config SPI_FLASH_SPANSION
68 bool "Spansion SPI flash support"
70 Add support for various Spansion SPI flash chips (S25FLxxx)
72 config SPI_FLASH_STMICRO
73 bool "STMicro SPI flash support"
75 Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
78 bool "SST SPI flash support"
80 Add support for various SST SPI flash chips (SST25xxx)
82 config SPI_FLASH_WINBOND
83 bool "Winbond SPI flash support"
85 Add support for various Winbond SPI flash chips (W25xxx)
89 config SPI_FLASH_USE_4K_SECTORS
90 bool "Use small 4096 B erase sectors"
94 Many flash memories support erasing small (4096 B) sectors. Depending
95 on the usage this feature may provide performance gain in comparison
96 to erasing whole blocks (32/64 KiB).
97 Changing a small part of the flash's contents is usually faster with
98 small sectors. On the other hand erasing should be faster when using
99 64 KiB block instead of 16 × 4 KiB sectors.
101 Please note that some tools/drivers/filesystems may not work with
102 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
104 config SPI_FLASH_DATAFLASH
105 bool "AT45xxx DataFlash support"
106 depends on SPI_FLASH && DM_SPI_FLASH
108 Enable the access for SPI-flash-based AT45xxx DataFlash chips.
109 DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
110 in each chip, which may be used for double buffered I/O; but this
111 driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
113 Sometimes DataFlash is packaged in MMC-format cards, although the
114 MMC stack can't (yet?) distinguish between MMC and DataFlash
115 protocols during enumeration.
120 bool "SPI Flash MTD support"
123 Enable the MTD support for spi flash layer, this adapter is for
124 translating mtd_read/mtd_write commands into spi_flash_read/write
125 commands. It is not intended to use it within sf_cmd or the SPI
126 flash subsystem. Such an adapter is needed for subsystems like
127 UBI which can only operate on top of the MTD layer.
134 bool "Support for SPI Flash on Allwinner SoCs in SPL"
135 depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUN8I_H3 || MACH_SUN50I
137 Enable support for SPI Flash. This option allows SPL to read from
138 sunxi SPI Flash. It uses the same method as the boot ROM, so does
139 not need any extra configuration.
143 endmenu # menu "SPI Flash Support"