1menu "SPI Flash Support"
2
3config DM_SPI_FLASH
4	bool "Enable Driver Model for SPI flash"
5	depends on DM && DM_SPI
6	imply SPI_FLASH
7	help
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).
18
19config SPI_FLASH_SANDBOX
20	bool "Support sandbox SPI flash device"
21	depends on SANDBOX && DM_SPI_FLASH
22	help
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.
28
29config SPI_FLASH
30	bool "SPI Flash Core Interface support"
31	select SPI_MEM
32	help
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.
36
37	  If unsure, say N
38
39config SF_DEFAULT_BUS
40	int "SPI Flash default bus identifier"
41	depends on SPI_FLASH || DM_SPI_FLASH
42	default 0
43	help
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.
47
48config SF_DEFAULT_CS
49	int "SPI Flash default Chip-select"
50	depends on SPI_FLASH || DM_SPI_FLASH
51	default 0
52	help
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.
56
57config SF_DEFAULT_MODE
58	hex "SPI Flash default mode (see include/spi.h)"
59	depends on SPI_FLASH || DM_SPI_FLASH
60	default 0
61	help
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
67	  available node.
68
69config SF_DEFAULT_SPEED
70	int "SPI Flash default speed in Hz"
71	depends on SPI_FLASH || DM_SPI_FLASH
72	default 1000000
73	help
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
79	  available node.
80
81if SPI_FLASH
82
83config SPI_FLASH_SFDP_SUPPORT
84	bool "SFDP table parsing support for SPI NOR flashes"
85	depends on !SPI_FLASH_BAR
86	help
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.
90
91config SPI_FLASH_SMART_HWCAPS
92	bool "Smart hardware capability detection based on SPI MEM supports_op() hook"
93	default y
94	help
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.
99
100config SPI_FLASH_SOFT_RESET
101	bool "Software Reset support for SPI NOR flashes"
102	help
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).
105
106config 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
109	help
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.
114
115config SPI_FLASH_BAR
116	bool "SPI flash Bank/Extended address register support"
117	help
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.
121
122config SPI_FLASH_UNLOCK_ALL
123	bool "Unlock the entire SPI flash on u-boot startup"
124	default y
125	help
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.
128
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.
131
132config SF_DUAL_FLASH
133	bool "SPI DUAL flash memory support"
134	help
135	  Enable this option to support two flash memories connected to a single
136	  controller. Currently Xilinx Zynq qspi supports this.
137
138config SPI_FLASH_ATMEL
139	bool "Atmel SPI flash support"
140	help
141	  Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
142
143config SPI_FLASH_EON
144	bool "EON SPI flash support"
145	help
146	  Add support for various EON SPI flash chips (EN25xxx)
147
148config SPI_FLASH_GIGADEVICE
149	bool "GigaDevice SPI flash support"
150	help
151	  Add support for various GigaDevice SPI flash chips (GD25xxx)
152
153config SPI_FLASH_ISSI
154	bool "ISSI SPI flash support"
155	help
156	  Add support for various ISSI SPI flash chips (ISxxx)
157
158config SPI_FLASH_MACRONIX
159	bool "Macronix SPI flash support"
160	help
161	  Add support for various Macronix SPI flash chips (MX25Lxxx)
162
163config SPI_FLASH_SPANSION
164	bool "Spansion SPI flash support"
165	help
166	  Add support for various Spansion SPI flash chips (S25FLxxx)
167
168config SPI_FLASH_S28HS512T
169	bool "Cypress S28HS512T chip support"
170	depends on SPI_FLASH_SPANSION
171	help
172	 Add support for the Cypress S28HS512T chip. This is a separate config
173	 because the fixup hooks for this flash add extra size overhead. Boards
174	 that don't use the flash can disable this to save space.
175
176config SPI_FLASH_STMICRO
177	bool "STMicro SPI flash support"
178	help
179	  Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
180
181config SPI_FLASH_MT35XU
182	bool "Micron MT35XU chip support"
183	depends on SPI_FLASH_STMICRO
184	help
185	 Add support for the Micron MT35XU chip. This is a separate config
186	 because the fixup hooks for this flash add extra size overhead. Boards
187	 that don't use the flash can disable this to save space.
188
189config SPI_FLASH_SST
190	bool "SST SPI flash support"
191	help
192	  Add support for various SST SPI flash chips (SST25xxx)
193
194config SPI_FLASH_WINBOND
195	bool "Winbond SPI flash support"
196	help
197	  Add support for various Winbond SPI flash chips (W25xxx)
198
199config SPI_FLASH_XMC
200	bool "XMC SPI flash support"
201	help
202	  Add support for various XMC (Wuhan Xinxin Semiconductor
203	  Manufacturing Corp.) SPI flash chips (XM25xxx)
204
205config SPI_FLASH_XTX
206	bool "XTX SPI flash support"
207	help
208	  Add support for various XTX (XTX Technology Limited)
209	  SPI flash chips (XT25xxx).
210
211endif
212
213config SPI_FLASH_USE_4K_SECTORS
214	bool "Use small 4096 B erase sectors"
215	depends on SPI_FLASH
216	default y
217	help
218	  Many flash memories support erasing small (4096 B) sectors. Depending
219	  on the usage this feature may provide performance gain in comparison
220	  to erasing whole blocks (32/64 KiB).
221	  Changing a small part of the flash's contents is usually faster with
222	  small sectors. On the other hand erasing should be faster when using
223	  64 KiB block instead of 16 × 4 KiB sectors.
224
225	  Please note that some tools/drivers/filesystems may not work with
226	  4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
227
228config SPI_FLASH_DATAFLASH
229	bool "AT45xxx DataFlash support"
230	depends on SPI_FLASH && DM_SPI_FLASH
231	help
232	  Enable the access for SPI-flash-based AT45xxx DataFlash chips.
233	  DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
234	  in each chip, which may be used for double buffered I/O; but this
235	  driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
236
237	  Sometimes DataFlash is packaged in MMC-format cards, although the
238	  MMC stack can't (yet?) distinguish between MMC and DataFlash
239	  protocols during enumeration.
240
241	  If unsure, say N
242
243config SPI_FLASH_MTD
244	bool "SPI Flash MTD support"
245	depends on SPI_FLASH && MTD
246	help
247          Enable the MTD support for spi flash layer, this adapter is for
248	  translating mtd_read/mtd_write commands into spi_flash_read/write
249	  commands. It is not intended to use it within sf_cmd or the SPI
250	  flash subsystem. Such an adapter is needed for subsystems like
251	  UBI which can only operate on top of the MTD layer.
252
253	  If unsure, say N
254
255config SPL_SPI_FLASH_MTD
256	bool "SPI flash MTD support for SPL"
257	depends on SPI_FLASH
258	help
259          Enable the MTD support for the SPI flash layer in SPL.
260
261	  If unsure, say N
262
263endmenu # menu "SPI Flash Support"
264