xref: /openbmc/u-boot/drivers/mtd/nand/Kconfig (revision 20c700f8)
1menu "NAND Device Support"
2
3config SYS_NAND_SELF_INIT
4	bool
5	help
6	  This option, if enabled, provides more flexible and linux-like
7	  NAND initialization process.
8
9config NAND_DENALI
10	bool "Support Denali NAND controller"
11	select SYS_NAND_SELF_INIT
12	help
13	  Enable support for the Denali NAND controller.
14
15config SYS_NAND_DENALI_64BIT
16	bool "Use 64-bit variant of Denali NAND controller"
17	depends on NAND_DENALI
18	help
19	  The Denali NAND controller IP has some variations in terms of
20	  the bus interface.  The DMA setup sequence is completely differenct
21	  between 32bit / 64bit AXI bus variants.
22
23	  If your Denali NAND controller is the 64-bit variant, say Y.
24	  Otherwise (32 bit), say N.
25
26config NAND_DENALI_SPARE_AREA_SKIP_BYTES
27	int "Number of bytes skipped in OOB area"
28	depends on NAND_DENALI
29	range 0 63
30	help
31	  This option specifies the number of bytes to skip from the beginning
32	  of OOB area before last ECC sector data starts.  This is potentially
33	  used to preserve the bad block marker in the OOB area.
34
35config NAND_VF610_NFC
36	bool "Support for Freescale NFC for VF610/MPC5125"
37	select SYS_NAND_SELF_INIT
38	help
39	  Enables support for NAND Flash Controller on some Freescale
40	  processors like the VF610, MPC5125, MCF54418 or Kinetis K70.
41	  The driver supports a maximum 2k page size. The driver
42	  currently does not support hardware ECC.
43
44choice
45	prompt "Hardware ECC strength"
46	depends on NAND_VF610_NFC
47	default SYS_NAND_VF610_NFC_45_ECC_BYTES
48	help
49	  Select the ECC strength used in the hardware BCH ECC block.
50
51config SYS_NAND_VF610_NFC_45_ECC_BYTES
52	bool "24-error correction (45 ECC bytes)"
53
54config SYS_NAND_VF610_NFC_60_ECC_BYTES
55	bool "32-error correction (60 ECC bytes)"
56
57endchoice
58
59config NAND_PXA3XX
60	bool "Support for NAND on PXA3xx and Armada 370/XP/38x"
61	select SYS_NAND_SELF_INIT
62	help
63	  This enables the driver for the NAND flash device found on
64	  PXA3xx processors (NFCv1) and also on Armada 370/XP (NFCv2).
65
66config NAND_SUNXI
67	bool "Support for NAND on Allwinner SoCs"
68	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
69	select SYS_NAND_SELF_INIT
70	---help---
71	Enable support for NAND. This option enables the standard and
72	SPL drivers.
73	The SPL driver only supports reading from the NAND using DMA
74	transfers.
75
76config NAND_ARASAN
77	bool "Configure Arasan Nand"
78	help
79	  This enables Nand driver support for Arasan nand flash
80	  controller. This uses the hardware ECC for read and
81	  write operations.
82
83config NAND_MXS
84	bool "MXS NAND support"
85	depends on MX6
86	help
87	  This enables NAND driver for the NAND flash controller on the
88	  MXS processors.
89
90config NAND_ZYNQ
91	bool "Support for Zynq Nand controller"
92	select SYS_NAND_SELF_INIT
93	help
94	  This enables Nand driver support for Nand flash controller
95	  found on Zynq SoC.
96
97comment "Generic NAND options"
98
99# Enhance depends when converting drivers to Kconfig which use this config
100# option (mxc_nand, ndfc, omap_gpmc).
101config SYS_NAND_BUSWIDTH_16BIT
102	bool "Use 16-bit NAND interface"
103	depends on NAND_VF610_NFC
104	help
105	  Indicates that NAND device has 16-bit wide data-bus. In absence of this
106	  config, bus-width of NAND device is assumed to be either 8-bit and later
107	  determined by reading ONFI params.
108	  Above config is useful when NAND device's bus-width information cannot
109	  be determined from on-chip ONFI params, like in following scenarios:
110	  - SPL boot does not support reading of ONFI parameters. This is done to
111	    keep SPL code foot-print small.
112	  - In current U-Boot flow using nand_init(), driver initialization
113	    happens in board_nand_init() which is called before any device probe
114	    (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
115	    not available while configuring controller. So a static CONFIG_NAND_xx
116	    is needed to know the device's bus-width in advance.
117
118if SPL
119
120config SYS_NAND_U_BOOT_LOCATIONS
121	bool "Define U-boot binaries locations in NAND"
122	help
123	Enable CONFIG_SYS_NAND_U_BOOT_OFFS though Kconfig.
124	This option should not be enabled when compiling U-boot for boards
125	defining CONFIG_SYS_NAND_U_BOOT_OFFS in their include/configs/<board>.h
126	file.
127
128config SYS_NAND_U_BOOT_OFFS
129	hex "Location in NAND to read U-Boot from"
130	default 0x8000 if NAND_SUNXI
131	depends on SYS_NAND_U_BOOT_LOCATIONS
132	help
133	Set the offset from the start of the nand where u-boot should be
134	loaded from.
135
136config SYS_NAND_U_BOOT_OFFS_REDUND
137	hex "Location in NAND to read U-Boot from"
138	default SYS_NAND_U_BOOT_OFFS
139	depends on SYS_NAND_U_BOOT_LOCATIONS
140	help
141	Set the offset from the start of the nand where the redundant u-boot
142	should be loaded from.
143
144config SPL_NAND_DENALI
145	bool "Support Denali NAND controller for SPL"
146	help
147	  This is a small implementation of the Denali NAND controller
148	  for use on SPL.
149
150endif
151
152endmenu
153