3 bool "NAND Device Support"
6 config SYS_NAND_SELF_INIT
9 This option, if enabled, provides more flexible and linux-like
10 NAND initialization process.
13 bool "Support Denali NAND controller"
14 select SYS_NAND_SELF_INIT
17 Enable support for the Denali NAND controller.
20 bool "Support Denali NAND controller as a DT device"
21 depends on NAND_DENALI && OF_CONTROL && DM
23 Enable the driver for NAND flash on platforms using a Denali NAND
24 controller as a DT device.
26 config SYS_NAND_DENALI_64BIT
27 bool "Use 64-bit variant of Denali NAND controller"
28 depends on NAND_DENALI
30 The Denali NAND controller IP has some variations in terms of
31 the bus interface. The DMA setup sequence is completely differenct
32 between 32bit / 64bit AXI bus variants.
34 If your Denali NAND controller is the 64-bit variant, say Y.
35 Otherwise (32 bit), say N.
37 config NAND_DENALI_SPARE_AREA_SKIP_BYTES
38 int "Number of bytes skipped in OOB area"
39 depends on NAND_DENALI
42 This option specifies the number of bytes to skip from the beginning
43 of OOB area before last ECC sector data starts. This is potentially
44 used to preserve the bad block marker in the OOB area.
47 bool "Support OMAP GPMC NAND controller"
48 depends on ARCH_OMAP2PLUS
50 Enables omap_gpmc.c driver for OMAPx and AMxxxx platforms.
51 GPMC controller is used for parallel NAND flash devices, and can
52 do ECC calculation (not ECC error detection) for HAM1, BCH4, BCH8
53 and BCH16 ECC algorithms.
55 config NAND_OMAP_GPMC_PREFETCH
56 bool "Enable GPMC Prefetch"
57 depends on NAND_OMAP_GPMC
60 On OMAP platforms that use the GPMC controller
61 (CONFIG_NAND_OMAP_GPMC_PREFETCH), this options enables the code that
62 uses the prefetch mode to speed up read operations.
65 bool "Enable ELM driver for OMAPxx and AMxx platforms."
66 depends on NAND_OMAP_GPMC && !OMAP34XX
68 ELM controller is used for ECC error detection (not ECC calculation)
69 of BCH4, BCH8 and BCH16 ECC algorithms.
70 Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine,
71 thus such SoC platforms need to depend on software library for ECC error
72 detection. However ECC calculation on such plaforms would still be
73 done by GPMC controller.
76 bool "Support for Freescale NFC for VF610"
77 select SYS_NAND_SELF_INIT
80 Enables support for NAND Flash Controller on some Freescale
81 processors like the VF610, MCF54418 or Kinetis K70.
82 The driver supports a maximum 2k page size. The driver
83 currently does not support hardware ECC.
86 prompt "Hardware ECC strength"
87 depends on NAND_VF610_NFC
88 default SYS_NAND_VF610_NFC_45_ECC_BYTES
90 Select the ECC strength used in the hardware BCH ECC block.
92 config SYS_NAND_VF610_NFC_45_ECC_BYTES
93 bool "24-error correction (45 ECC bytes)"
95 config SYS_NAND_VF610_NFC_60_ECC_BYTES
96 bool "32-error correction (60 ECC bytes)"
101 bool "Support for NAND on PXA3xx and Armada 370/XP/38x"
102 select SYS_NAND_SELF_INIT
105 This enables the driver for the NAND flash device found on
106 PXA3xx processors (NFCv1) and also on Armada 370/XP (NFCv2).
109 bool "Support for NAND on Allwinner SoCs"
110 depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
111 select SYS_NAND_SELF_INIT
112 select SYS_NAND_U_BOOT_LOCATIONS
115 Enable support for NAND. This option enables the standard and
117 The SPL driver only supports reading from the NAND using DMA
122 config NAND_SUNXI_SPL_ECC_STRENGTH
123 int "Allwinner NAND SPL ECC Strength"
126 config NAND_SUNXI_SPL_ECC_SIZE
127 int "Allwinner NAND SPL ECC Step Size"
130 config NAND_SUNXI_SPL_USABLE_PAGE_SIZE
131 int "Allwinner NAND SPL Usable Page Size"
137 bool "Configure Arasan Nand"
140 This enables Nand driver support for Arasan nand flash
141 controller. This uses the hardware ECC for read and
145 bool "MXC NAND support"
146 depends on CPU_ARM926EJS || CPU_ARM1136 || MX5
149 This enables the NAND driver for the NAND flash controller on the
150 i.MX27 / i.MX31 / i.MX5 rocessors.
153 bool "MXS NAND support"
154 depends on MX6 || MX7
157 This enables NAND driver for the NAND flash controller on the
161 bool "Support for Zynq Nand controller"
162 select SYS_NAND_SELF_INIT
165 This enables Nand driver support for Nand flash controller
168 comment "Generic NAND options"
170 # Enhance depends when converting drivers to Kconfig which use this config
171 # option (mxc_nand, ndfc, omap_gpmc).
172 config SYS_NAND_BUSWIDTH_16BIT
173 bool "Use 16-bit NAND interface"
174 depends on NAND_VF610_NFC || NAND_OMAP_GPMC || NAND_MXC || ARCH_DAVINCI
176 Indicates that NAND device has 16-bit wide data-bus. In absence of this
177 config, bus-width of NAND device is assumed to be either 8-bit and later
178 determined by reading ONFI params.
179 Above config is useful when NAND device's bus-width information cannot
180 be determined from on-chip ONFI params, like in following scenarios:
181 - SPL boot does not support reading of ONFI parameters. This is done to
182 keep SPL code foot-print small.
183 - In current U-Boot flow using nand_init(), driver initialization
184 happens in board_nand_init() which is called before any device probe
185 (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
186 not available while configuring controller. So a static CONFIG_NAND_xx
187 is needed to know the device's bus-width in advance.
191 config SYS_NAND_U_BOOT_LOCATIONS
192 bool "Define U-boot binaries locations in NAND"
194 Enable CONFIG_SYS_NAND_U_BOOT_OFFS though Kconfig.
195 This option should not be enabled when compiling U-boot for boards
196 defining CONFIG_SYS_NAND_U_BOOT_OFFS in their include/configs/<board>.h
199 config SYS_NAND_U_BOOT_OFFS
200 hex "Location in NAND to read U-Boot from"
201 default 0x800000 if NAND_SUNXI
202 depends on SYS_NAND_U_BOOT_LOCATIONS
204 Set the offset from the start of the nand where u-boot should be
207 config SYS_NAND_U_BOOT_OFFS_REDUND
208 hex "Location in NAND to read U-Boot from"
209 default SYS_NAND_U_BOOT_OFFS
210 depends on SYS_NAND_U_BOOT_LOCATIONS
212 Set the offset from the start of the nand where the redundant u-boot
213 should be loaded from.
215 config SPL_NAND_AM33XX_BCH
216 bool "Enables SPL-NAND driver which supports ELM based"
217 depends on NAND_OMAP_GPMC && !OMAP34XX
220 Hardware ECC correction. This is useful for platforms which have ELM
221 hardware engine and use NAND boot mode.
222 Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine,
223 so those platforms should use CONFIG_SPL_NAND_SIMPLE for enabling
224 SPL-NAND driver with software ECC correction support.
226 config SPL_NAND_DENALI
227 bool "Support Denali NAND controller for SPL"
229 This is a small implementation of the Denali NAND controller
232 config SPL_NAND_SIMPLE
233 bool "Use simple SPL NAND driver"
234 depends on !SPL_NAND_AM33XX_BCH
236 Support for NAND boot using simple NAND drivers that
237 expose the cmd_ctrl() interface.