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 platdata 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 platdata 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.
92 bool "SPI flash Bank/Extended address register support"
94 Enable the SPI flash Bank/Extended address register support.
95 Bank/Extended address registers are used to access the flash
96 which has size > 16MiB in 3-byte addressing.
99 bool "SPI DUAL flash memory support"
101 Enable this option to support two flash memories connected to a single
102 controller. Currently Xilinx Zynq qspi supports this.
104 config SPI_FLASH_ATMEL
105 bool "Atmel SPI flash support"
107 Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
110 bool "EON SPI flash support"
112 Add support for various EON SPI flash chips (EN25xxx)
114 config SPI_FLASH_GIGADEVICE
115 bool "GigaDevice SPI flash support"
117 Add support for various GigaDevice SPI flash chips (GD25xxx)
119 config SPI_FLASH_ISSI
120 bool "ISSI SPI flash support"
122 Add support for various ISSI SPI flash chips (ISxxx)
124 config SPI_FLASH_MACRONIX
125 bool "Macronix SPI flash support"
127 Add support for various Macronix SPI flash chips (MX25Lxxx)
129 config SPI_FLASH_SPANSION
130 bool "Spansion SPI flash support"
132 Add support for various Spansion SPI flash chips (S25FLxxx)
134 config SPI_FLASH_STMICRO
135 bool "STMicro SPI flash support"
137 Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
140 bool "SST SPI flash support"
142 Add support for various SST SPI flash chips (SST25xxx)
144 config SPI_FLASH_WINBOND
145 bool "Winbond SPI flash support"
147 Add support for various Winbond SPI flash chips (W25xxx)
150 bool "XMC SPI flash support"
152 Add support for various XMC (Wuhan Xinxin Semiconductor
153 Manufacturing Corp.) SPI flash chips (XM25xxx)
157 config SPI_FLASH_USE_4K_SECTORS
158 bool "Use small 4096 B erase sectors"
162 Many flash memories support erasing small (4096 B) sectors. Depending
163 on the usage this feature may provide performance gain in comparison
164 to erasing whole blocks (32/64 KiB).
165 Changing a small part of the flash's contents is usually faster with
166 small sectors. On the other hand erasing should be faster when using
167 64 KiB block instead of 16 × 4 KiB sectors.
169 Please note that some tools/drivers/filesystems may not work with
170 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
172 config SPI_FLASH_DATAFLASH
173 bool "AT45xxx DataFlash support"
174 depends on SPI_FLASH && DM_SPI_FLASH
176 Enable the access for SPI-flash-based AT45xxx DataFlash chips.
177 DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
178 in each chip, which may be used for double buffered I/O; but this
179 driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
181 Sometimes DataFlash is packaged in MMC-format cards, although the
182 MMC stack can't (yet?) distinguish between MMC and DataFlash
183 protocols during enumeration.
188 bool "SPI Flash MTD support"
189 depends on SPI_FLASH && MTD
191 Enable the MTD support for spi flash layer, this adapter is for
192 translating mtd_read/mtd_write commands into spi_flash_read/write
193 commands. It is not intended to use it within sf_cmd or the SPI
194 flash subsystem. Such an adapter is needed for subsystems like
195 UBI which can only operate on top of the MTD layer.
199 config SPL_SPI_FLASH_MTD
200 bool "SPI flash MTD support for SPL"
203 Enable the MTD support for the SPI flash layer in SPL.
207 endmenu # menu "SPI Flash Support"