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menu "NAND Device Support"
config SYS_NAND_SELF_INIT
bool
help
This option, if enabled, provides more flexible and linux-like
NAND initialization process.
config NAND_DENALI
bool "Support Denali NAND controller"
select SYS_NAND_SELF_INIT
help
Enable support for the Denali NAND controller.
config SYS_NAND_DENALI_64BIT
bool "Use 64-bit variant of Denali NAND controller"
depends on NAND_DENALI
help
The Denali NAND controller IP has some variations in terms of
the bus interface. The DMA setup sequence is completely differenct
between 32bit / 64bit AXI bus variants.
If your Denali NAND controller is the 64-bit variant, say Y.
Otherwise (32 bit), say N.
config NAND_DENALI_SPARE_AREA_SKIP_BYTES
int "Number of bytes skipped in OOB area"
depends on NAND_DENALI
range 0 63
help
This option specifies the number of bytes to skip from the beginning
of OOB area before last ECC sector data starts. This is potentially
used to preserve the bad block marker in the OOB area.
config NAND_VF610_NFC
bool "Support for Freescale NFC for VF610/MPC5125"
select SYS_NAND_SELF_INIT
help
Enables support for NAND Flash Controller on some Freescale
processors like the VF610, MPC5125, MCF54418 or Kinetis K70.
The driver supports a maximum 2k page size. The driver
currently does not support hardware ECC.
choice
prompt "Hardware ECC strength"
depends on NAND_VF610_NFC
default SYS_NAND_VF610_NFC_45_ECC_BYTES
help
Select the ECC strength used in the hardware BCH ECC block.
config SYS_NAND_VF610_NFC_45_ECC_BYTES
bool "24-error correction (45 ECC bytes)"
config SYS_NAND_VF610_NFC_60_ECC_BYTES
bool "32-error correction (60 ECC bytes)"
endchoice
comment "Generic NAND options"
# Enhance depends when converting drivers to Kconfig which use this config
# option (mxc_nand, ndfc, omap_gpmc).
config SYS_NAND_BUSWIDTH_16BIT
bool "Use 16-bit NAND interface"
depends on NAND_VF610_NFC
help
Indicates that NAND device has 16-bit wide data-bus. In absence of this
config, bus-width of NAND device is assumed to be either 8-bit and later
determined by reading ONFI params.
Above config is useful when NAND device's bus-width information cannot
be determined from on-chip ONFI params, like in following scenarios:
- SPL boot does not support reading of ONFI parameters. This is done to
keep SPL code foot-print small.
- In current U-Boot flow using nand_init(), driver initialization
happens in board_nand_init() which is called before any device probe
(nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
not available while configuring controller. So a static CONFIG_NAND_xx
is needed to know the device's bus-width in advance.
if SPL
config SPL_NAND_DENALI
bool "Support Denali NAND controller for SPL"
help
This is a small implementation of the Denali NAND controller
for use on SPL.
config SPL_NAND_SUNXI
bool "Support for NAND on Allwinner A20 in SPL"
depends on MACH_SUN7I
---help---
Enable support for NAND. This option allows SPL to read from
sunxi NAND using DMA transfers.
Depending on the NAND chip, values like ECC strength and page sizes
have to be configured.
config NAND_SUNXI_SPL_SYNDROME_PARTITIONS_END
hex "Size of syndrome partitions in sunxi NAND"
default 0x400000
depends on SPL_NAND_SUNXI
---help---
End address for boot partitions on NAND. Those partitions have a
different random seed that has to match the sunxi BROM setting.
config NAND_SUNXI_SPL_ECC_STRENGTH
int "ECC Strength for sunxi NAND"
default 40
depends on SPL_NAND_SUNXI
---help---
ECC strength used by the sunxi NAND SPL driver. This is specific to the
chosen NAND chip and has to match the value used by the sunxi BROM.
config NAND_SUNXI_SPL_ECC_PAGE_SIZE
hex "ECC page size for sunxi NAND"
default 0x400
depends on SPL_NAND_SUNXI
---help---
ECC page size used by the sunxi NAND SPL driver for syndrome partitions.
This setting has to match the value used by the sunxi BROM.
config NAND_SUNXI_SPL_PAGE_SIZE
hex "Page size for sunxi NAND"
default 0x2000
depends on SPL_NAND_SUNXI
---help---
Page size of the NAND flash used by the sunxi NAND SPL driver. This is
specific to the chosen NAND chip.
endif
endmenu
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