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.
101 bool "SPI flash Bank/Extended address register support"
103 Enable the SPI flash Bank/Extended address register support.
104 Bank/Extended address registers are used to access the flash
105 which has size > 16MiB in 3-byte addressing.
107 config SPI_FLASH_UNLOCK_ALL
108 bool "Unlock the entire SPI flash on u-boot startup"
111 Some flashes tend to power up with the software write protection
112 bits set. If this option is set, the whole flash will be unlocked.
114 For legacy reasons, this option default to y. But if you intend to
115 actually use the software protection bits you should say n here.
118 bool "SPI DUAL flash memory support"
120 Enable this option to support two flash memories connected to a single
121 controller. Currently Xilinx Zynq qspi supports this.
123 config SPI_FLASH_ATMEL
124 bool "Atmel SPI flash support"
126 Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
129 bool "EON SPI flash support"
131 Add support for various EON SPI flash chips (EN25xxx)
133 config SPI_FLASH_GIGADEVICE
134 bool "GigaDevice SPI flash support"
136 Add support for various GigaDevice SPI flash chips (GD25xxx)
138 config SPI_FLASH_ISSI
139 bool "ISSI SPI flash support"
141 Add support for various ISSI SPI flash chips (ISxxx)
143 config SPI_FLASH_MACRONIX
144 bool "Macronix SPI flash support"
146 Add support for various Macronix SPI flash chips (MX25Lxxx)
148 config SPI_FLASH_SPANSION
149 bool "Spansion SPI flash support"
151 Add support for various Spansion SPI flash chips (S25FLxxx)
153 config SPI_FLASH_STMICRO
154 bool "STMicro SPI flash support"
156 Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
159 bool "SST SPI flash support"
161 Add support for various SST SPI flash chips (SST25xxx)
163 config SPI_FLASH_WINBOND
164 bool "Winbond SPI flash support"
166 Add support for various Winbond SPI flash chips (W25xxx)
169 bool "XMC SPI flash support"
171 Add support for various XMC (Wuhan Xinxin Semiconductor
172 Manufacturing Corp.) SPI flash chips (XM25xxx)
176 config SPI_FLASH_USE_4K_SECTORS
177 bool "Use small 4096 B erase sectors"
181 Many flash memories support erasing small (4096 B) sectors. Depending
182 on the usage this feature may provide performance gain in comparison
183 to erasing whole blocks (32/64 KiB).
184 Changing a small part of the flash's contents is usually faster with
185 small sectors. On the other hand erasing should be faster when using
186 64 KiB block instead of 16 × 4 KiB sectors.
188 Please note that some tools/drivers/filesystems may not work with
189 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
191 config SPI_FLASH_DATAFLASH
192 bool "AT45xxx DataFlash support"
193 depends on SPI_FLASH && DM_SPI_FLASH
195 Enable the access for SPI-flash-based AT45xxx DataFlash chips.
196 DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
197 in each chip, which may be used for double buffered I/O; but this
198 driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
200 Sometimes DataFlash is packaged in MMC-format cards, although the
201 MMC stack can't (yet?) distinguish between MMC and DataFlash
202 protocols during enumeration.
207 bool "SPI Flash MTD support"
208 depends on SPI_FLASH && MTD
210 Enable the MTD support for spi flash layer, this adapter is for
211 translating mtd_read/mtd_write commands into spi_flash_read/write
212 commands. It is not intended to use it within sf_cmd or the SPI
213 flash subsystem. Such an adapter is needed for subsystems like
214 UBI which can only operate on top of the MTD layer.
218 config SPL_SPI_FLASH_MTD
219 bool "SPI flash MTD support for SPL"
222 Enable the MTD support for the SPI flash layer in SPL.
226 endmenu # menu "SPI Flash Support"