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 3
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_BAR
92	bool "SPI flash Bank/Extended address register support"
93	help
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.
97
98config SPI_FLASH_UNLOCK_ALL
99	bool "Unlock the entire SPI flash on u-boot startup"
100	default y
101	help
102	 Some flashes tend to power up with the software write protection
103	 bits set. If this option is set, the whole flash will be unlocked.
104
105	 For legacy reasons, this option default to y. But if you intend to
106	 actually use the software protection bits you should say n here.
107
108config SF_DUAL_FLASH
109	bool "SPI DUAL flash memory support"
110	help
111	  Enable this option to support two flash memories connected to a single
112	  controller. Currently Xilinx Zynq qspi supports this.
113
114config SPI_FLASH_ATMEL
115	bool "Atmel SPI flash support"
116	help
117	  Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
118
119config SPI_FLASH_EON
120	bool "EON SPI flash support"
121	help
122	  Add support for various EON SPI flash chips (EN25xxx)
123
124config SPI_FLASH_GIGADEVICE
125	bool "GigaDevice SPI flash support"
126	help
127	  Add support for various GigaDevice SPI flash chips (GD25xxx)
128
129config SPI_FLASH_ISSI
130	bool "ISSI SPI flash support"
131	help
132	  Add support for various ISSI SPI flash chips (ISxxx)
133
134config SPI_FLASH_MACRONIX
135	bool "Macronix SPI flash support"
136	help
137	  Add support for various Macronix SPI flash chips (MX25Lxxx)
138
139config SPI_FLASH_SPANSION
140	bool "Spansion SPI flash support"
141	help
142	  Add support for various Spansion SPI flash chips (S25FLxxx)
143
144config SPI_FLASH_STMICRO
145	bool "STMicro SPI flash support"
146	help
147	  Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
148
149config SPI_FLASH_SST
150	bool "SST SPI flash support"
151	help
152	  Add support for various SST SPI flash chips (SST25xxx)
153
154config SPI_FLASH_WINBOND
155	bool "Winbond SPI flash support"
156	help
157	  Add support for various Winbond SPI flash chips (W25xxx)
158
159config SPI_FLASH_XMC
160	bool "XMC SPI flash support"
161	help
162	  Add support for various XMC (Wuhan Xinxin Semiconductor
163	  Manufacturing Corp.) SPI flash chips (XM25xxx)
164
165endif
166
167config SPI_FLASH_USE_4K_SECTORS
168	bool "Use small 4096 B erase sectors"
169	depends on SPI_FLASH
170	default y
171	help
172	  Many flash memories support erasing small (4096 B) sectors. Depending
173	  on the usage this feature may provide performance gain in comparison
174	  to erasing whole blocks (32/64 KiB).
175	  Changing a small part of the flash's contents is usually faster with
176	  small sectors. On the other hand erasing should be faster when using
177	  64 KiB block instead of 16 × 4 KiB sectors.
178
179	  Please note that some tools/drivers/filesystems may not work with
180	  4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
181
182config SPI_FLASH_DATAFLASH
183	bool "AT45xxx DataFlash support"
184	depends on SPI_FLASH && DM_SPI_FLASH
185	help
186	  Enable the access for SPI-flash-based AT45xxx DataFlash chips.
187	  DataFlash is a kind of SPI flash. Most AT45 chips have two buffers
188	  in each chip, which may be used for double buffered I/O; but this
189	  driver doesn't (yet) use these for any kind of i/o overlap or prefetching.
190
191	  Sometimes DataFlash is packaged in MMC-format cards, although the
192	  MMC stack can't (yet?) distinguish between MMC and DataFlash
193	  protocols during enumeration.
194
195	  If unsure, say N
196
197config SPI_FLASH_MTD
198	bool "SPI Flash MTD support"
199	depends on SPI_FLASH && MTD
200	help
201          Enable the MTD support for spi flash layer, this adapter is for
202	  translating mtd_read/mtd_write commands into spi_flash_read/write
203	  commands. It is not intended to use it within sf_cmd or the SPI
204	  flash subsystem. Such an adapter is needed for subsystems like
205	  UBI which can only operate on top of the MTD layer.
206
207	  If unsure, say N
208
209config SPL_SPI_FLASH_MTD
210	bool "SPI flash MTD support for SPL"
211	depends on SPI_FLASH
212	help
213          Enable the MTD support for the SPI flash layer in SPL.
214
215	  If unsure, say N
216
217endmenu # menu "SPI Flash Support"
218