1 menu "SPI Flash Support"
4 bool "Enable Driver Model for SPI flash"
5 depends on DM && DM_SPI
8 Enable driver model for SPI flash. This SPI flash interface
9 (spi_flash_probe(), spi_flash_write(), etc.) is then
10 implemented by the SPI flash uclass. There is one standard
11 SPI flash driver which knows how to probe most chips
12 supported by U-Boot. The uclass interface is defined in
13 include/spi_flash.h, but is currently fully compatible
14 with the old interface to avoid confusion and duplication
15 during the transition parent. SPI and SPI flash must be
16 enabled together (it is not possible to use driver model
17 for one and not the other).
19 config SPI_FLASH_SANDBOX
20 bool "Support sandbox SPI flash device"
21 depends on SANDBOX && DM_SPI_FLASH
23 Since sandbox cannot access real devices, an emulation mechanism is
24 provided instead. Drivers can be connected up to the sandbox SPI
25 bus (see CONFIG_SANDBOX_SPI) and SPI traffic will be routed to this
26 device. Typically the contents of the emulated SPI flash device is
27 stored in a file on the host filesystem.
30 bool "SPI Flash Core Interface support"
33 Enable the SPI flash Core 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.
65 Not used for boot with device tree; the SPI driver reads
66 speed and mode from plat values computed from
69 config SF_DEFAULT_SPEED
70 int "SPI Flash default speed in Hz"
71 depends on SPI_FLASH || DM_SPI_FLASH
74 The default speed may be provided by the platform
75 to handle the common case when only a single serial
76 flash is present on the system.
77 Not used for boot with device tree; the SPI driver reads
78 speed and mode from plat values computed from
83 config BOOTDEV_SPI_FLASH
84 bool "SPI Flash bootdev support"
86 Enable a boot device for SPI flash. This allows reading a script
87 from SPI flash so that it can be used to boot an Operating System.
91 config SPI_FLASH_SFDP_SUPPORT
92 bool "SFDP table parsing support for SPI NOR flashes"
93 depends on !SPI_FLASH_BAR
95 Enable support for parsing and auto discovery of parameters for
96 SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP)
97 tables as per JESD216 standard.
99 config SPI_FLASH_SMART_HWCAPS
100 bool "Smart hardware capability detection based on SPI MEM supports_op() hook"
103 Enable support for smart hardware capability detection based on SPI
104 MEM supports_op() hook that lets controllers express whether they
105 can support a type of operation in a much more refined way compared
106 to using flags like SPI_RX_DUAL, SPI_TX_QUAD, etc.
108 config SPI_NOR_BOOT_SOFT_RESET_EXT_INVERT
109 bool "Command extension type is INVERT for Software Reset on boot"
112 Because of SFDP information can not be get before boot.
113 So define command extension type is INVERT when Software Reset on boot only.
115 config SPI_FLASH_SOFT_RESET
116 bool "Software Reset support for SPI NOR flashes"
118 Enable support for xSPI Software Reset. It will be used to switch from
119 Octal DTR mode to legacy mode on shutdown and boot (if enabled).
121 config SPI_FLASH_SOFT_RESET_ON_BOOT
122 bool "Perform a Software Reset on boot on flashes that boot in stateful mode"
123 depends on SPI_FLASH_SOFT_RESET
125 Perform a Software Reset on boot to allow detecting flashes that are
126 handed to us in Octal DTR mode. Do not enable this config on flashes
127 that are not supposed to be handed to U-Boot in Octal DTR mode, even
128 if they _do_ support the Soft Reset sequence.
131 bool "SPI flash Bank/Extended address register support"
133 Enable the SPI flash Bank/Extended address register support.
134 Bank/Extended address registers are used to access the flash
135 which has size > 16MiB in 3-byte addressing.
137 config SPI_FLASH_UNLOCK_ALL
138 bool "Unlock the entire SPI flash on u-boot startup"
141 Some flashes tend to power up with the software write protection
142 bits set. If this option is set, the whole flash will be unlocked.
144 For legacy reasons, this option default to y. But if you intend to
145 actually use the software protection bits you should say n here.
147 config SPI_FLASH_ATMEL
148 bool "Atmel SPI flash support"
150 Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
153 bool "EON SPI flash support"
155 Add support for various EON SPI flash chips (EN25xxx)
157 config SPI_FLASH_GIGADEVICE
158 bool "GigaDevice SPI flash support"
160 Add support for various GigaDevice SPI flash chips (GD25xxx)
162 config SPI_FLASH_ISSI
163 bool "ISSI SPI flash support"
165 Add support for various ISSI SPI flash chips (ISxxx)
167 config SPI_FLASH_MACRONIX
168 bool "Macronix SPI flash support"
170 Add support for various Macronix SPI flash chips (MX25Lxxx)
172 config SPI_FLASH_SPANSION
173 bool "Spansion SPI flash support"
175 Add support for various Spansion SPI flash chips (S25FLxxx)
177 config SPI_FLASH_S28HX_T
178 bool "Cypress SEMPER Octal (S28) chip support"
179 depends on SPI_FLASH_SPANSION
181 Add support for the Cypress S28HL-T and S28HS-T chip. This is a separate
182 config because the fixup hooks for this flash add extra size overhead.
183 Boards that don't use the flash can disable this to save space.
185 config SPI_FLASH_STMICRO
186 bool "STMicro SPI flash support"
188 Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
190 config SPI_FLASH_MT35XU
191 bool "Micron MT35XU chip support"
192 depends on SPI_FLASH_STMICRO
194 Add support for the Micron MT35XU chip. This is a separate config
195 because the fixup hooks for this flash add extra size overhead. Boards
196 that don't use the flash can disable this to save space.
199 bool "SST SPI flash support"
201 Add support for various SST SPI flash chips (SST25xxx)
203 config SPI_FLASH_WINBOND
204 bool "Winbond SPI flash support"
206 Add support for various Winbond SPI flash chips (W25xxx)
209 bool "XMC SPI flash support"
211 Add support for various XMC (Wuhan Xinxin Semiconductor
212 Manufacturing Corp.) SPI flash chips (XM25xxx)
215 bool "XTX SPI flash support"
217 Add support for various XTX (XTX Technology Limited)
218 SPI flash chips (XT25xxx).
222 config SPI_FLASH_USE_4K_SECTORS
223 bool "Use small 4096 B erase sectors"
227 Many flash memories support erasing small (4096 B) sectors. Depending
228 on the usage this feature may provide performance gain in comparison
229 to erasing whole blocks (32/64 KiB).
230 Changing a small part of the flash's contents is usually faster with
231 small sectors. On the other hand erasing should be faster when using
232 64 KiB block instead of 16 × 4 KiB sectors.
234 Please note that some tools/drivers/filesystems may not work with
235 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
237 config SPI_FLASH_DATAFLASH
238 bool "AT45xxx DataFlash support"
239 depends on SPI_FLASH && DM_SPI_FLASH
241 Enable the access for SPI-flash-based AT45xxx DataFlash chips.
242 DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
243 in each chip, which may be used for double buffered I/O; but this
244 driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
246 Sometimes DataFlash is packaged in MMC-format cards, although the
247 MMC stack can't (yet?) distinguish between MMC and DataFlash
248 protocols during enumeration.
253 bool "SPI Flash MTD support"
254 depends on SPI_FLASH && MTD
256 Enable the MTD support for spi flash layer, this adapter is for
257 translating mtd_read/mtd_write commands into spi_flash_read/write
258 commands. It is not intended to use it within sf_cmd or the SPI
259 flash subsystem. Such an adapter is needed for subsystems like
260 UBI which can only operate on top of the MTD layer.
264 config SPL_SPI_FLASH_MTD
265 bool "SPI flash MTD support for SPL"
266 depends on SPI_FLASH && SPL
268 Enable the MTD support for the SPI flash layer in SPL.
272 endmenu # menu "SPI Flash Support"