xref: /openbmc/linux/drivers/mtd/spi-nor/Kconfig (revision 023e4163)
1menuconfig MTD_SPI_NOR
2	tristate "SPI-NOR device support"
3	depends on MTD
4	help
5	  This is the framework for the SPI NOR which can be used by the SPI
6	  device drivers and the SPI-NOR device driver.
7
8if MTD_SPI_NOR
9
10config MTD_SPI_NOR_USE_4K_SECTORS
11	bool "Use small 4096 B erase sectors"
12	default y
13	help
14	  Many flash memories support erasing small (4096 B) sectors. Depending
15	  on the usage this feature may provide performance gain in comparison
16	  to erasing whole blocks (32/64 KiB).
17	  Changing a small part of the flash's contents is usually faster with
18	  small sectors. On the other hand erasing should be faster when using
19	  64 KiB block instead of 16 × 4 KiB sectors.
20
21	  Please note that some tools/drivers/filesystems may not work with
22	  4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
23
24config SPI_ASPEED_SMC
25	tristate "Aspeed flash controllers in SPI mode"
26	depends on ARCH_ASPEED || COMPILE_TEST
27	depends on HAS_IOMEM && OF
28	help
29	  This enables support for the Firmware Memory controller (FMC)
30	  in the Aspeed AST2500/AST2400 SoCs when attached to SPI NOR chips,
31	  and support for the SPI flash memory controller (SPI) for
32	  the host firmware. The implementation only supports SPI NOR.
33
34config SPI_CADENCE_QUADSPI
35	tristate "Cadence Quad SPI controller"
36	depends on OF && (ARM || ARM64 || COMPILE_TEST)
37	help
38	  Enable support for the Cadence Quad SPI Flash controller.
39
40	  Cadence QSPI is a specialized controller for connecting an SPI
41	  Flash over 1/2/4-bit wide bus. Enable this option if you have a
42	  device with a Cadence QSPI controller and want to access the
43	  Flash as an MTD device.
44
45config SPI_HISI_SFC
46	tristate "Hisilicon SPI-NOR Flash Controller(SFC)"
47	depends on ARCH_HISI || COMPILE_TEST
48	depends on HAS_IOMEM
49	help
50	  This enables support for hisilicon SPI-NOR flash controller.
51
52config SPI_MTK_QUADSPI
53	tristate "MediaTek Quad SPI controller"
54	depends on HAS_IOMEM
55	help
56	  This enables support for the Quad SPI controller in master mode.
57	  This controller does not support generic SPI. It only supports
58	  SPI NOR.
59
60config SPI_NXP_SPIFI
61	tristate "NXP SPI Flash Interface (SPIFI)"
62	depends on OF && (ARCH_LPC18XX || COMPILE_TEST)
63	depends on HAS_IOMEM
64	help
65	  Enable support for the NXP LPC SPI Flash Interface controller.
66
67	  SPIFI is a specialized controller for connecting serial SPI
68	  Flash. Enable this option if you have a device with a SPIFI
69	  controller and want to access the Flash as a mtd device.
70
71config SPI_INTEL_SPI
72	tristate
73
74config SPI_INTEL_SPI_PCI
75	tristate "Intel PCH/PCU SPI flash PCI driver (DANGEROUS)"
76	depends on X86 && PCI
77	select SPI_INTEL_SPI
78	help
79	  This enables PCI support for the Intel PCH/PCU SPI controller in
80	  master mode. This controller is present in modern Intel hardware
81	  and is used to hold BIOS and other persistent settings. Using
82	  this driver it is possible to upgrade BIOS directly from Linux.
83
84	  Say N here unless you know what you are doing. Overwriting the
85	  SPI flash may render the system unbootable.
86
87	  To compile this driver as a module, choose M here: the module
88	  will be called intel-spi-pci.
89
90config SPI_INTEL_SPI_PLATFORM
91	tristate "Intel PCH/PCU SPI flash platform driver (DANGEROUS)"
92	depends on X86
93	select SPI_INTEL_SPI
94	help
95	  This enables platform support for the Intel PCH/PCU SPI
96	  controller in master mode. This controller is present in modern
97	  Intel hardware and is used to hold BIOS and other persistent
98	  settings. Using this driver it is possible to upgrade BIOS
99	  directly from Linux.
100
101	  Say N here unless you know what you are doing. Overwriting the
102	  SPI flash may render the system unbootable.
103
104	  To compile this driver as a module, choose M here: the module
105	  will be called intel-spi-platform.
106
107config SPI_STM32_QUADSPI
108	tristate "STM32 Quad SPI controller"
109	depends on ARCH_STM32 || COMPILE_TEST
110	help
111	  This enables support for the STM32 Quad SPI controller.
112	  We only connect the NOR to this controller.
113
114endif # MTD_SPI_NOR
115