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"
33 Enable the legacy SPI flash support. This will include basic
34 standard support for things like probing, read / write, and
35 erasing through cmd_sf interface.
40 int "SPI Flash default bus identifier"
41 depends on SPI_FLASH || DM_SPI_FLASH
44 The default bus may be provided by the platform
45 to handle the common case when only a single serial
46 flash is present on the system.
49 int "SPI Flash default Chip-select"
50 depends on SPI_FLASH || DM_SPI_FLASH
53 The default chip select may be provided by the platform
54 to handle the common case when only a single serial
55 flash is present on the system.
57 config SF_DEFAULT_MODE
58 hex "SPI Flash default mode (see include/spi.h)"
59 depends on SPI_FLASH || DM_SPI_FLASH
62 The default mode may be provided by the platform
63 to handle the common case when only a single serial
64 flash is present on the system.
66 config SF_DEFAULT_SPEED
67 int "SPI Flash default speed in Hz"
68 depends on SPI_FLASH || DM_SPI_FLASH
71 The default speed may be provided by the platform
72 to handle the common case when only a single serial
73 flash is present on the system.
77 config SPI_FLASH_SFDP_SUPPORT
78 bool "SFDP table parsing support for SPI NOR flashes"
79 depends on !SPI_FLASH_BAR
81 Enable support for parsing and auto discovery of parameters for
82 SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP)
83 tables as per JESD216 standard.
86 bool "SPI flash Bank/Extended address register support"
88 Enable the SPI flash Bank/Extended address register support.
89 Bank/Extended address registers are used to access the flash
90 which has size > 16MiB in 3-byte addressing.
93 bool "SPI DUAL flash memory support"
95 Enable this option to support two flash memories connected to a single
96 controller. Currently Xilinx Zynq qspi supports this.
98 config SPI_FLASH_ATMEL
99 bool "Atmel SPI flash support"
101 Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
104 bool "EON SPI flash support"
106 Add support for various EON SPI flash chips (EN25xxx)
108 config SPI_FLASH_GIGADEVICE
109 bool "GigaDevice SPI flash support"
111 Add support for various GigaDevice SPI flash chips (GD25xxx)
113 config SPI_FLASH_ISSI
114 bool "ISSI SPI flash support"
116 Add support for various ISSI SPI flash chips (ISxxx)
118 config SPI_FLASH_MACRONIX
119 bool "Macronix SPI flash support"
121 Add support for various Macronix SPI flash chips (MX25Lxxx)
123 config SPI_FLASH_SPANSION
124 bool "Spansion SPI flash support"
126 Add support for various Spansion SPI flash chips (S25FLxxx)
128 config SPI_FLASH_STMICRO
129 bool "STMicro SPI flash support"
131 Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
134 bool "SST SPI flash support"
136 Add support for various SST SPI flash chips (SST25xxx)
138 config SPI_FLASH_WINBOND
139 bool "Winbond SPI flash support"
141 Add support for various Winbond SPI flash chips (W25xxx)
144 bool "XMC SPI flash support"
146 Add support for various XMC (Wuhan Xinxin Semiconductor
147 Manufacturing Corp.) SPI flash chips (XM25xxx)
151 config SPI_FLASH_USE_4K_SECTORS
152 bool "Use small 4096 B erase sectors"
156 Many flash memories support erasing small (4096 B) sectors. Depending
157 on the usage this feature may provide performance gain in comparison
158 to erasing whole blocks (32/64 KiB).
159 Changing a small part of the flash's contents is usually faster with
160 small sectors. On the other hand erasing should be faster when using
161 64 KiB block instead of 16 × 4 KiB sectors.
163 Please note that some tools/drivers/filesystems may not work with
164 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
166 config SPI_FLASH_DATAFLASH
167 bool "AT45xxx DataFlash support"
168 depends on SPI_FLASH && DM_SPI_FLASH
170 Enable the access for SPI-flash-based AT45xxx DataFlash chips.
171 DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
172 in each chip, which may be used for double buffered I/O; but this
173 driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
175 Sometimes DataFlash is packaged in MMC-format cards, although the
176 MMC stack can't (yet?) distinguish between MMC and DataFlash
177 protocols during enumeration.
182 bool "SPI Flash MTD support"
185 Enable the MTD support for spi flash layer, this adapter is for
186 translating mtd_read/mtd_write commands into spi_flash_read/write
187 commands. It is not intended to use it within sf_cmd or the SPI
188 flash subsystem. Such an adapter is needed for subsystems like
189 UBI which can only operate on top of the MTD layer.
193 endmenu # menu "SPI Flash Support"