2 menuconfig MTD_RAW_NAND
3 bool "Raw NAND Device Support"
6 config SYS_NAND_SELF_INIT
9 This option, if enabled, provides more flexible and linux-like
10 NAND initialization process.
12 config SYS_NAND_DRIVER_ECC_LAYOUT
15 Omit standard ECC layouts to safe space. Select this if your driver
16 is known to provide its own ECC layout.
18 config SYS_NAND_USE_FLASH_BBT
19 bool "Enable BBT (Bad Block Table) support"
21 Enable the BBT (Bad Block Table) usage.
24 bool "Support Atmel NAND controller"
25 imply SYS_NAND_USE_FLASH_BBT
27 Enable this driver for NAND flash platforms using an Atmel NAND
32 config ATMEL_NAND_HWECC
33 bool "Atmel Hardware ECC"
36 config ATMEL_NAND_HW_PMECC
37 bool "Atmel Programmable Multibit ECC (PMECC)"
38 select ATMEL_NAND_HWECC
41 The Programmable Multibit ECC (PMECC) controller is a programmable
42 binary BCH(Bose, Chaudhuri and Hocquenghem) encoder and decoder.
45 int "PMECC Correctable ECC Bits"
46 depends on ATMEL_NAND_HW_PMECC
49 Correctable ECC bits, can be 2, 4, 8, 12, and 24.
51 config PMECC_SECTOR_SIZE
52 int "PMECC Sector Size"
53 depends on ATMEL_NAND_HW_PMECC
56 Sector size, in bytes, can be 512 or 1024.
58 config SPL_GENERATE_ATMEL_PMECC_HEADER
59 bool "Atmel PMECC Header Generation"
60 select ATMEL_NAND_HWECC
61 select ATMEL_NAND_HW_PMECC
64 Generate Programmable Multibit ECC (PMECC) header for SPL image.
69 bool "Support Broadcom NAND controller"
70 depends on OF_CONTROL && DM && DM_MTD
72 Enable the driver for NAND flash on platforms using a Broadcom NAND
75 config NAND_BRCMNAND_6368
76 bool "Support Broadcom NAND controller on bcm6368"
77 depends on NAND_BRCMNAND && ARCH_BMIPS
79 Enable support for broadcom nand driver on bcm6368.
81 config NAND_BRCMNAND_68360
82 bool "Support Broadcom NAND controller on bcm68360"
83 depends on NAND_BRCMNAND && ARCH_BCM68360
85 Enable support for broadcom nand driver on bcm68360.
87 config NAND_BRCMNAND_6838
88 bool "Support Broadcom NAND controller on bcm6838"
89 depends on NAND_BRCMNAND && ARCH_BMIPS && SOC_BMIPS_BCM6838
91 Enable support for broadcom nand driver on bcm6838.
93 config NAND_BRCMNAND_6858
94 bool "Support Broadcom NAND controller on bcm6858"
95 depends on NAND_BRCMNAND && ARCH_BCM6858
97 Enable support for broadcom nand driver on bcm6858.
99 config NAND_BRCMNAND_63158
100 bool "Support Broadcom NAND controller on bcm63158"
101 depends on NAND_BRCMNAND && ARCH_BCM63158
103 Enable support for broadcom nand driver on bcm63158.
106 bool "Support TI Davinci NAND controller"
108 Enable this driver for NAND flash controllers available in TI Davinci
109 and Keystone2 platforms
113 select SYS_NAND_SELF_INIT
116 config NAND_DENALI_DT
117 bool "Support Denali NAND controller as a DT device"
119 depends on OF_CONTROL && DM_MTD
121 Enable the driver for NAND flash on platforms using a Denali NAND
122 controller as a DT device.
124 config NAND_LPC32XX_SLC
125 bool "Support LPC32XX_SLC controller"
127 Enable the LPC32XX SLC NAND controller.
129 config NAND_OMAP_GPMC
130 bool "Support OMAP GPMC NAND controller"
131 depends on ARCH_OMAP2PLUS
133 Enables omap_gpmc.c driver for OMAPx and AMxxxx platforms.
134 GPMC controller is used for parallel NAND flash devices, and can
135 do ECC calculation (not ECC error detection) for HAM1, BCH4, BCH8
136 and BCH16 ECC algorithms.
138 config NAND_OMAP_GPMC_PREFETCH
139 bool "Enable GPMC Prefetch"
140 depends on NAND_OMAP_GPMC
143 On OMAP platforms that use the GPMC controller
144 (CONFIG_NAND_OMAP_GPMC_PREFETCH), this options enables the code that
145 uses the prefetch mode to speed up read operations.
148 bool "Enable ELM driver for OMAPxx and AMxx platforms."
149 depends on NAND_OMAP_GPMC && !OMAP34XX
151 ELM controller is used for ECC error detection (not ECC calculation)
152 of BCH4, BCH8 and BCH16 ECC algorithms.
153 Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine,
154 thus such SoC platforms need to depend on software library for ECC error
155 detection. However ECC calculation on such plaforms would still be
156 done by GPMC controller.
158 config NAND_VF610_NFC
159 bool "Support for Freescale NFC for VF610"
160 select SYS_NAND_SELF_INIT
161 select SYS_NAND_DRIVER_ECC_LAYOUT
164 Enables support for NAND Flash Controller on some Freescale
165 processors like the VF610, MCF54418 or Kinetis K70.
166 The driver supports a maximum 2k page size. The driver
167 currently does not support hardware ECC.
171 config NAND_VF610_NFC_DT
172 bool "Support Vybrid's vf610 NAND controller as a DT device"
173 depends on OF_CONTROL && DM_MTD
175 Enable the driver for Vybrid's vf610 NAND flash on platforms
179 prompt "Hardware ECC strength"
180 depends on NAND_VF610_NFC
181 default SYS_NAND_VF610_NFC_45_ECC_BYTES
183 Select the ECC strength used in the hardware BCH ECC block.
185 config SYS_NAND_VF610_NFC_45_ECC_BYTES
186 bool "24-error correction (45 ECC bytes)"
188 config SYS_NAND_VF610_NFC_60_ECC_BYTES
189 bool "32-error correction (60 ECC bytes)"
196 bool "Support for NAND on PXA3xx and Armada 370/XP/38x"
197 select SYS_NAND_SELF_INIT
200 This enables the driver for the NAND flash device found on
201 PXA3xx processors (NFCv1) and also on Armada 370/XP (NFCv2).
204 bool "Support for NAND on Allwinner SoCs"
206 depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUN8I
207 select SYS_NAND_SELF_INIT
208 select SYS_NAND_U_BOOT_LOCATIONS
209 select SPL_NAND_SUPPORT
212 Enable support for NAND. This option enables the standard and
214 The SPL driver only supports reading from the NAND using DMA
219 config NAND_SUNXI_SPL_ECC_STRENGTH
220 int "Allwinner NAND SPL ECC Strength"
223 config NAND_SUNXI_SPL_ECC_SIZE
224 int "Allwinner NAND SPL ECC Step Size"
227 config NAND_SUNXI_SPL_USABLE_PAGE_SIZE
228 int "Allwinner NAND SPL Usable Page Size"
234 bool "Configure Arasan Nand"
235 select SYS_NAND_SELF_INIT
239 This enables Nand driver support for Arasan nand flash
240 controller. This uses the hardware ECC for read and
244 bool "MXC NAND support"
245 depends on CPU_ARM926EJS || CPU_ARM1136 || MX5
248 This enables the NAND driver for the NAND flash controller on the
249 i.MX27 / i.MX31 / i.MX5 rocessors.
252 bool "MXS NAND support"
253 depends on MX23 || MX28 || MX6 || MX7 || IMX8 || IMX8M
254 select SYS_NAND_SELF_INIT
257 select APBH_DMA_BURST if ARCH_MX6 || ARCH_MX7 || ARCH_IMX8 || ARCH_IMX8M
258 select APBH_DMA_BURST8 if ARCH_MX6 || ARCH_MX7 || ARCH_IMX8 || ARCH_IMX8M
260 This enables NAND driver for the NAND flash controller on the
266 bool "Support MXS NAND controller as a DT device"
267 depends on OF_CONTROL && DM_MTD
269 Enable the driver for MXS NAND flash on platforms using
272 config NAND_MXS_USE_MINIMUM_ECC
273 bool "Use minimum ECC strength supported by the controller"
279 bool "Support for Zynq Nand controller"
280 select SYS_NAND_SELF_INIT
284 This enables Nand driver support for Nand flash controller
287 config NAND_ZYNQ_USE_BOOTLOADER1_TIMINGS
288 bool "Enable use of 1st stage bootloader timing for NAND"
291 This flag prevent U-boot reconfigure NAND flash controller and reuse
292 the NAND timing from 1st stage bootloader.
294 config NAND_STM32_FMC2
295 bool "Support for NAND controller on STM32MP SoCs"
296 depends on ARCH_STM32MP
297 select SYS_NAND_SELF_INIT
300 Enables support for NAND Flash chips on SoCs containing the FMC2
301 NAND controller. This controller is found on STM32MP SoCs.
302 The controller supports a maximum 8k page size and supports
303 a maximum 8-bit correction error per sector of 512 bytes.
305 comment "Generic NAND options"
307 config SYS_NAND_BLOCK_SIZE
308 hex "NAND chip eraseblock size"
309 depends on ARCH_SUNXI
311 Number of data bytes in one eraseblock for the NAND chip on the
312 board. This is the multiple of NAND_PAGE_SIZE and the number of
315 config SYS_NAND_PAGE_SIZE
316 hex "NAND chip page size"
317 depends on ARCH_SUNXI
319 Number of data bytes in one page for the NAND chip on the
320 board, not including the OOB area.
322 config SYS_NAND_OOBSIZE
323 hex "NAND chip OOB size"
324 depends on ARCH_SUNXI
326 Number of bytes in the Out-Of-Band area for the NAND chip on
329 # Enhance depends when converting drivers to Kconfig which use this config
330 # option (mxc_nand, ndfc, omap_gpmc).
331 config SYS_NAND_BUSWIDTH_16BIT
332 bool "Use 16-bit NAND interface"
333 depends on NAND_VF610_NFC || NAND_OMAP_GPMC || NAND_MXC || ARCH_DAVINCI
335 Indicates that NAND device has 16-bit wide data-bus. In absence of this
336 config, bus-width of NAND device is assumed to be either 8-bit and later
337 determined by reading ONFI params.
338 Above config is useful when NAND device's bus-width information cannot
339 be determined from on-chip ONFI params, like in following scenarios:
340 - SPL boot does not support reading of ONFI parameters. This is done to
341 keep SPL code foot-print small.
342 - In current U-Boot flow using nand_init(), driver initialization
343 happens in board_nand_init() which is called before any device probe
344 (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
345 not available while configuring controller. So a static CONFIG_NAND_xx
346 is needed to know the device's bus-width in advance.
348 config SYS_NAND_MAX_CHIPS
351 depends on NAND_ARASAN
353 The maximum number of NAND chips per device to be supported.
357 config SYS_NAND_U_BOOT_LOCATIONS
358 bool "Define U-boot binaries locations in NAND"
360 Enable CONFIG_SYS_NAND_U_BOOT_OFFS though Kconfig.
361 This option should not be enabled when compiling U-boot for boards
362 defining CONFIG_SYS_NAND_U_BOOT_OFFS in their include/configs/<board>.h
365 config SYS_NAND_U_BOOT_OFFS
366 hex "Location in NAND to read U-Boot from"
367 default 0x800000 if NAND_SUNXI
368 depends on SYS_NAND_U_BOOT_LOCATIONS
370 Set the offset from the start of the nand where u-boot should be
373 config SYS_NAND_U_BOOT_OFFS_REDUND
374 hex "Location in NAND to read U-Boot from"
375 default SYS_NAND_U_BOOT_OFFS
376 depends on SYS_NAND_U_BOOT_LOCATIONS
378 Set the offset from the start of the nand where the redundant u-boot
379 should be loaded from.
381 config SPL_NAND_AM33XX_BCH
382 bool "Enables SPL-NAND driver which supports ELM based"
383 depends on NAND_OMAP_GPMC && !OMAP34XX
386 Hardware ECC correction. This is useful for platforms which have ELM
387 hardware engine and use NAND boot mode.
388 Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine,
389 so those platforms should use CONFIG_SPL_NAND_SIMPLE for enabling
390 SPL-NAND driver with software ECC correction support.
392 config SPL_NAND_DENALI
393 bool "Support Denali NAND controller for SPL"
395 This is a small implementation of the Denali NAND controller
398 config NAND_DENALI_SPARE_AREA_SKIP_BYTES
399 int "Number of bytes skipped in OOB area"
400 depends on SPL_NAND_DENALI
403 This option specifies the number of bytes to skip from the beginning
404 of OOB area before last ECC sector data starts. This is potentially
405 used to preserve the bad block marker in the OOB area.
407 config SPL_NAND_SIMPLE
408 bool "Use simple SPL NAND driver"
409 depends on !SPL_NAND_AM33XX_BCH
411 Support for NAND boot using simple NAND drivers that
412 expose the cmd_ctrl() interface.