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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 platdata 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 platdata 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 SF_DUAL_FLASH
99	bool "SPI DUAL flash memory support"
100	help
101	  Enable this option to support two flash memories connected to a single
102	  controller. Currently Xilinx Zynq qspi supports this.
103
104config SPI_FLASH_ATMEL
105	bool "Atmel SPI flash support"
106	help
107	  Add support for various Atmel SPI flash chips (AT45xxx and AT25xxx)
108
109config SPI_FLASH_EON
110	bool "EON SPI flash support"
111	help
112	  Add support for various EON SPI flash chips (EN25xxx)
113
114config SPI_FLASH_GIGADEVICE
115	bool "GigaDevice SPI flash support"
116	help
117	  Add support for various GigaDevice SPI flash chips (GD25xxx)
118
119config SPI_FLASH_ISSI
120	bool "ISSI SPI flash support"
121	help
122	  Add support for various ISSI SPI flash chips (ISxxx)
123
124config SPI_FLASH_MACRONIX
125	bool "Macronix SPI flash support"
126	help
127	  Add support for various Macronix SPI flash chips (MX25Lxxx)
128
129config SPI_FLASH_SPANSION
130	bool "Spansion SPI flash support"
131	help
132	  Add support for various Spansion SPI flash chips (S25FLxxx)
133
134config SPI_FLASH_STMICRO
135	bool "STMicro SPI flash support"
136	help
137	  Add support for various STMicro SPI flash chips (M25Pxxx and N25Qxxx)
138
139config SPI_FLASH_SST
140	bool "SST SPI flash support"
141	help
142	  Add support for various SST SPI flash chips (SST25xxx)
143
144config SPI_FLASH_WINBOND
145	bool "Winbond SPI flash support"
146	help
147	  Add support for various Winbond SPI flash chips (W25xxx)
148
149config SPI_FLASH_XMC
150	bool "XMC SPI flash support"
151	help
152	  Add support for various XMC (Wuhan Xinxin Semiconductor
153	  Manufacturing Corp.) SPI flash chips (XM25xxx)
154
155endif
156
157config SPI_FLASH_USE_4K_SECTORS
158	bool "Use small 4096 B erase sectors"
159	depends on SPI_FLASH
160	default y
161	help
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.
168
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).
171
172config SPI_FLASH_DATAFLASH
173	bool "AT45xxx DataFlash support"
174	depends on SPI_FLASH && DM_SPI_FLASH
175	help
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.
180
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.
184
185	  If unsure, say N
186
187config SPI_FLASH_MTD
188	bool "SPI Flash MTD support"
189	depends on SPI_FLASH && MTD
190	help
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.
196
197	  If unsure, say N
198
199config SPL_SPI_FLASH_MTD
200	bool "SPI flash MTD support for SPL"
201	depends on SPI_FLASH
202	help
203          Enable the MTD support for the SPI flash layer in SPL.
204
205	  If unsure, say N
206
207endmenu # menu "SPI Flash Support"
208