xref: /openbmc/u-boot/drivers/mtd/nand/Kconfig (revision 450f3c71)
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 in SPL"
68	depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
69	select SYS_NAND_SELF_INIT
70	---help---
71	Enable support for NAND. This option allows SPL to read from
72	sunxi NAND using DMA transfers.
73
74config NAND_ARASAN
75	bool "Configure Arasan Nand"
76	help
77	  This enables Nand driver support for Arasan nand flash
78	  controller. This uses the hardware ECC for read and
79	  write operations.
80
81comment "Generic NAND options"
82
83# Enhance depends when converting drivers to Kconfig which use this config
84# option (mxc_nand, ndfc, omap_gpmc).
85config SYS_NAND_BUSWIDTH_16BIT
86	bool "Use 16-bit NAND interface"
87	depends on NAND_VF610_NFC
88	help
89	  Indicates that NAND device has 16-bit wide data-bus. In absence of this
90	  config, bus-width of NAND device is assumed to be either 8-bit and later
91	  determined by reading ONFI params.
92	  Above config is useful when NAND device's bus-width information cannot
93	  be determined from on-chip ONFI params, like in following scenarios:
94	  - SPL boot does not support reading of ONFI parameters. This is done to
95	    keep SPL code foot-print small.
96	  - In current U-Boot flow using nand_init(), driver initialization
97	    happens in board_nand_init() which is called before any device probe
98	    (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
99	    not available while configuring controller. So a static CONFIG_NAND_xx
100	    is needed to know the device's bus-width in advance.
101
102# Enhance depends when converting drivers to Kconfig which use this config
103config SYS_NAND_U_BOOT_OFFS
104	hex "Location in NAND to read U-Boot from"
105	default 0x8000 if NAND_SUNXI
106	depends on NAND_SUNXI
107	help
108	Set the offset from the start of the nand where u-boot should be
109	loaded from.
110
111if SPL
112
113config SPL_NAND_DENALI
114	bool "Support Denali NAND controller for SPL"
115	help
116	  This is a small implementation of the Denali NAND controller
117	  for use on SPL.
118
119endif
120
121endmenu
122