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 SPI_FLASH_SFDP_SUPPORT
84 bool "SFDP table parsing support for SPI NOR flashes"
85 depends on !SPI_FLASH_BAR
87 Enable support for parsing and auto discovery of parameters for
88 SPI NOR flashes using Serial Flash Discoverable Parameters (SFDP)
89 tables as per JESD216 standard.
91 config SPI_FLASH_SMART_HWCAPS
92 bool "Smart hardware capability detection based on SPI MEM supports_op() hook"
95 Enable support for smart hardware capability detection based on SPI
96 MEM supports_op() hook that lets controllers express whether they
97 can support a type of operation in a much more refined way compared
98 to using flags like SPI_RX_DUAL, SPI_TX_QUAD, etc.
100 config SPI_FLASH_SOFT_RESET
101 bool "Software Reset support for SPI NOR flashes"
103 Enable support for xSPI Software Reset. It will be used to switch from
104 Octal DTR mode to legacy mode on shutdown and boot (if enabled).
106 config SPI_FLASH_SOFT_RESET_ON_BOOT
107 bool "Perform a Software Reset on boot on flashes that boot in stateful mode"
108 depends on SPI_FLASH_SOFT_RESET
110 Perform a Software Reset on boot to allow detecting flashes that are
111 handed to us in Octal DTR mode. Do not enable this config on flashes
112 that are not supposed to be handed to U-Boot in Octal DTR mode, even
113 if they _do_ support the Soft Reset sequence.
116 bool "SPI flash Bank/Extended address register support"
118 Enable the SPI flash Bank/Extended address register support.
119 Bank/Extended address registers are used to access the flash
120 which has size > 16MiB in 3-byte addressing.
122 config SPI_FLASH_UNLOCK_ALL
123 bool "Unlock the entire SPI flash on u-boot startup"
126 Some flashes tend to power up with the software write protection
127 bits set. If this option is set, the whole flash will be unlocked.
129 For legacy reasons, this option default to y. But if you intend to
130 actually use the software protection bits you should say n here.
132 config SPI_FLASH_ATMEL
133 bool "Atmel SPI flash support"
135 Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
138 bool "EON SPI flash support"
140 Add support for various EON SPI flash chips (EN25xxx)
142 config SPI_FLASH_GIGADEVICE
143 bool "GigaDevice SPI flash support"
145 Add support for various GigaDevice SPI flash chips (GD25xxx)
147 config SPI_FLASH_ISSI
148 bool "ISSI SPI flash support"
150 Add support for various ISSI SPI flash chips (ISxxx)
152 config SPI_FLASH_MACRONIX
153 bool "Macronix SPI flash support"
155 Add support for various Macronix SPI flash chips (MX25Lxxx)
157 config SPI_FLASH_SPANSION
158 bool "Spansion SPI flash support"
160 Add support for various Spansion SPI flash chips (S25FLxxx)
162 config SPI_FLASH_S28HS512T
163 bool "Cypress S28HS512T chip support"
164 depends on SPI_FLASH_SPANSION
166 Add support for the Cypress S28HS512T chip. This is a separate config
167 because the fixup hooks for this flash add extra size overhead. Boards
168 that don't use the flash can disable this to save space.
170 config SPI_FLASH_STMICRO
171 bool "STMicro SPI flash support"
173 Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
175 config SPI_FLASH_MT35XU
176 bool "Micron MT35XU chip support"
177 depends on SPI_FLASH_STMICRO
179 Add support for the Micron MT35XU chip. This is a separate config
180 because the fixup hooks for this flash add extra size overhead. Boards
181 that don't use the flash can disable this to save space.
184 bool "SST SPI flash support"
186 Add support for various SST SPI flash chips (SST25xxx)
188 config SPI_FLASH_WINBOND
189 bool "Winbond SPI flash support"
191 Add support for various Winbond SPI flash chips (W25xxx)
194 bool "XMC SPI flash support"
196 Add support for various XMC (Wuhan Xinxin Semiconductor
197 Manufacturing Corp.) SPI flash chips (XM25xxx)
200 bool "XTX SPI flash support"
202 Add support for various XTX (XTX Technology Limited)
203 SPI flash chips (XT25xxx).
207 config SPI_FLASH_USE_4K_SECTORS
208 bool "Use small 4096 B erase sectors"
212 Many flash memories support erasing small (4096 B) sectors. Depending
213 on the usage this feature may provide performance gain in comparison
214 to erasing whole blocks (32/64 KiB).
215 Changing a small part of the flash's contents is usually faster with
216 small sectors. On the other hand erasing should be faster when using
217 64 KiB block instead of 16 × 4 KiB sectors.
219 Please note that some tools/drivers/filesystems may not work with
220 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
222 config SPI_FLASH_DATAFLASH
223 bool "AT45xxx DataFlash support"
224 depends on SPI_FLASH && DM_SPI_FLASH
226 Enable the access for SPI-flash-based AT45xxx DataFlash chips.
227 DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
228 in each chip, which may be used for double buffered I/O; but this
229 driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
231 Sometimes DataFlash is packaged in MMC-format cards, although the
232 MMC stack can't (yet?) distinguish between MMC and DataFlash
233 protocols during enumeration.
238 bool "SPI Flash MTD support"
239 depends on SPI_FLASH && MTD
241 Enable the MTD support for spi flash layer, this adapter is for
242 translating mtd_read/mtd_write commands into spi_flash_read/write
243 commands. It is not intended to use it within sf_cmd or the SPI
244 flash subsystem. Such an adapter is needed for subsystems like
245 UBI which can only operate on top of the MTD layer.
249 config SPL_SPI_FLASH_MTD
250 bool "SPI flash MTD support for SPL"
251 depends on SPI_FLASH && SPL
253 Enable the MTD support for the SPI flash layer in SPL.
257 endmenu # menu "SPI Flash Support"