mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-19 03:08:31 +00:00
39e709611d
This option provides better performance and should really always be enabled. Make this be default y. Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Jeroen Hofstee <jeroen@myspectrum.nl>
240 lines
7.3 KiB
Text
240 lines
7.3 KiB
Text
|
|
menuconfig NAND
|
|
bool "NAND Device Support"
|
|
if NAND
|
|
|
|
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
|
|
imply CMD_NAND
|
|
help
|
|
Enable support for the Denali NAND controller.
|
|
|
|
config NAND_DENALI_DT
|
|
bool "Support Denali NAND controller as a DT device"
|
|
depends on NAND_DENALI && OF_CONTROL && DM
|
|
help
|
|
Enable the driver for NAND flash on platforms using a Denali NAND
|
|
controller as a DT device.
|
|
|
|
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_OMAP_GPMC
|
|
bool "Support OMAP GPMC NAND controller"
|
|
depends on ARCH_OMAP2PLUS
|
|
help
|
|
Enables omap_gpmc.c driver for OMAPx and AMxxxx platforms.
|
|
GPMC controller is used for parallel NAND flash devices, and can
|
|
do ECC calculation (not ECC error detection) for HAM1, BCH4, BCH8
|
|
and BCH16 ECC algorithms.
|
|
|
|
config NAND_OMAP_GPMC_PREFETCH
|
|
bool "Enable GPMC Prefetch"
|
|
depends on NAND_OMAP_GPMC
|
|
default y
|
|
help
|
|
On OMAP platforms that use the GPMC controller
|
|
(CONFIG_NAND_OMAP_GPMC_PREFETCH), this options enables the code that
|
|
uses the prefetch mode to speed up read operations.
|
|
|
|
config NAND_OMAP_ELM
|
|
bool "Enable ELM driver for OMAPxx and AMxx platforms."
|
|
depends on NAND_OMAP_GPMC && !OMAP34XX
|
|
help
|
|
ELM controller is used for ECC error detection (not ECC calculation)
|
|
of BCH4, BCH8 and BCH16 ECC algorithms.
|
|
Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine,
|
|
thus such SoC platforms need to depend on software library for ECC error
|
|
detection. However ECC calculation on such plaforms would still be
|
|
done by GPMC controller.
|
|
|
|
config NAND_VF610_NFC
|
|
bool "Support for Freescale NFC for VF610"
|
|
select SYS_NAND_SELF_INIT
|
|
imply CMD_NAND
|
|
help
|
|
Enables support for NAND Flash Controller on some Freescale
|
|
processors like the VF610, 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
|
|
|
|
config NAND_PXA3XX
|
|
bool "Support for NAND on PXA3xx and Armada 370/XP/38x"
|
|
select SYS_NAND_SELF_INIT
|
|
imply CMD_NAND
|
|
help
|
|
This enables the driver for the NAND flash device found on
|
|
PXA3xx processors (NFCv1) and also on Armada 370/XP (NFCv2).
|
|
|
|
config NAND_SUNXI
|
|
bool "Support for NAND on Allwinner SoCs"
|
|
depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
|
|
select SYS_NAND_SELF_INIT
|
|
select SYS_NAND_U_BOOT_LOCATIONS
|
|
imply CMD_NAND
|
|
---help---
|
|
Enable support for NAND. This option enables the standard and
|
|
SPL drivers.
|
|
The SPL driver only supports reading from the NAND using DMA
|
|
transfers.
|
|
|
|
if NAND_SUNXI
|
|
|
|
config NAND_SUNXI_SPL_ECC_STRENGTH
|
|
int "Allwinner NAND SPL ECC Strength"
|
|
default 64
|
|
|
|
config NAND_SUNXI_SPL_ECC_SIZE
|
|
int "Allwinner NAND SPL ECC Step Size"
|
|
default 1024
|
|
|
|
config NAND_SUNXI_SPL_USABLE_PAGE_SIZE
|
|
int "Allwinner NAND SPL Usable Page Size"
|
|
default 1024
|
|
|
|
endif
|
|
|
|
config NAND_ARASAN
|
|
bool "Configure Arasan Nand"
|
|
imply CMD_NAND
|
|
help
|
|
This enables Nand driver support for Arasan nand flash
|
|
controller. This uses the hardware ECC for read and
|
|
write operations.
|
|
|
|
config NAND_MXC
|
|
bool "MXC NAND support"
|
|
depends on CPU_ARM926EJS || CPU_ARM1136 || MX5
|
|
imply CMD_NAND
|
|
help
|
|
This enables the NAND driver for the NAND flash controller on the
|
|
i.MX27 / i.MX31 / i.MX5 rocessors.
|
|
|
|
config NAND_MXS
|
|
bool "MXS NAND support"
|
|
depends on MX6 || MX7
|
|
imply CMD_NAND
|
|
help
|
|
This enables NAND driver for the NAND flash controller on the
|
|
MXS processors.
|
|
|
|
config NAND_ZYNQ
|
|
bool "Support for Zynq Nand controller"
|
|
select SYS_NAND_SELF_INIT
|
|
imply CMD_NAND
|
|
help
|
|
This enables Nand driver support for Nand flash controller
|
|
found on Zynq SoC.
|
|
|
|
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 || NAND_OMAP_GPMC || NAND_MXC || ARCH_DAVINCI
|
|
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 SYS_NAND_U_BOOT_LOCATIONS
|
|
bool "Define U-boot binaries locations in NAND"
|
|
help
|
|
Enable CONFIG_SYS_NAND_U_BOOT_OFFS though Kconfig.
|
|
This option should not be enabled when compiling U-boot for boards
|
|
defining CONFIG_SYS_NAND_U_BOOT_OFFS in their include/configs/<board>.h
|
|
file.
|
|
|
|
config SYS_NAND_U_BOOT_OFFS
|
|
hex "Location in NAND to read U-Boot from"
|
|
default 0x800000 if NAND_SUNXI
|
|
depends on SYS_NAND_U_BOOT_LOCATIONS
|
|
help
|
|
Set the offset from the start of the nand where u-boot should be
|
|
loaded from.
|
|
|
|
config SYS_NAND_U_BOOT_OFFS_REDUND
|
|
hex "Location in NAND to read U-Boot from"
|
|
default SYS_NAND_U_BOOT_OFFS
|
|
depends on SYS_NAND_U_BOOT_LOCATIONS
|
|
help
|
|
Set the offset from the start of the nand where the redundant u-boot
|
|
should be loaded from.
|
|
|
|
config SPL_NAND_AM33XX_BCH
|
|
bool "Enables SPL-NAND driver which supports ELM based"
|
|
depends on NAND_OMAP_GPMC && !OMAP34XX
|
|
default y
|
|
help
|
|
Hardware ECC correction. This is useful for platforms which have ELM
|
|
hardware engine and use NAND boot mode.
|
|
Some legacy platforms like OMAP3xx do not have in-built ELM h/w engine,
|
|
so those platforms should use CONFIG_SPL_NAND_SIMPLE for enabling
|
|
SPL-NAND driver with software ECC correction support.
|
|
|
|
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_SIMPLE
|
|
bool "Use simple SPL NAND driver"
|
|
depends on !SPL_NAND_AM33XX_BCH
|
|
help
|
|
Support for NAND boot using simple NAND drivers that
|
|
expose the cmd_ctrl() interface.
|
|
endif
|
|
|
|
endif # if NAND
|