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2b8a01a99d
Auto detect the nand configuration parameters, like the BROM does. This allows us to get rid of various Kconfig settings, and is necessary to support generic boards like the mk802 which have seen many production runs with different nands. The full blown u-boot/kernel nand driver uses the nand id to determine this info, for the SPL we do as the BROM does and simply try a few standard configs. Note the table only contains configs which are known to actually be used, rather then all the configs the BROM tries. This means that it may need to be updated in the future as we add support for nand on more boards. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Ian Campbell <ijc@hellion.org.uk>
113 lines
3.6 KiB
Text
113 lines
3.6 KiB
Text
menu "NAND Device Support"
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config SYS_NAND_SELF_INIT
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bool
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help
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This option, if enabled, provides more flexible and linux-like
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NAND initialization process.
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config NAND_DENALI
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bool "Support Denali NAND controller"
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select SYS_NAND_SELF_INIT
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help
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Enable support for the Denali NAND controller.
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config SYS_NAND_DENALI_64BIT
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bool "Use 64-bit variant of Denali NAND controller"
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depends on NAND_DENALI
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help
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The Denali NAND controller IP has some variations in terms of
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the bus interface. The DMA setup sequence is completely differenct
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between 32bit / 64bit AXI bus variants.
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If your Denali NAND controller is the 64-bit variant, say Y.
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Otherwise (32 bit), say N.
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config NAND_DENALI_SPARE_AREA_SKIP_BYTES
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int "Number of bytes skipped in OOB area"
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depends on NAND_DENALI
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range 0 63
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help
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This option specifies the number of bytes to skip from the beginning
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of OOB area before last ECC sector data starts. This is potentially
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used to preserve the bad block marker in the OOB area.
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config NAND_VF610_NFC
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bool "Support for Freescale NFC for VF610/MPC5125"
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select SYS_NAND_SELF_INIT
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help
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Enables support for NAND Flash Controller on some Freescale
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processors like the VF610, MPC5125, MCF54418 or Kinetis K70.
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The driver supports a maximum 2k page size. The driver
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currently does not support hardware ECC.
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choice
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prompt "Hardware ECC strength"
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depends on NAND_VF610_NFC
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default SYS_NAND_VF610_NFC_45_ECC_BYTES
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help
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Select the ECC strength used in the hardware BCH ECC block.
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config SYS_NAND_VF610_NFC_45_ECC_BYTES
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bool "24-error correction (45 ECC bytes)"
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config SYS_NAND_VF610_NFC_60_ECC_BYTES
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bool "32-error correction (60 ECC bytes)"
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endchoice
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config NAND_PXA3XX
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bool "Support for NAND on PXA3xx and Armada 370/XP/38x"
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select SYS_NAND_SELF_INIT
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help
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This enables the driver for the NAND flash device found on
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PXA3xx processors (NFCv1) and also on Armada 370/XP (NFCv2).
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comment "Generic NAND options"
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# Enhance depends when converting drivers to Kconfig which use this config
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# option (mxc_nand, ndfc, omap_gpmc).
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config SYS_NAND_BUSWIDTH_16BIT
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bool "Use 16-bit NAND interface"
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depends on NAND_VF610_NFC
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help
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Indicates that NAND device has 16-bit wide data-bus. In absence of this
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config, bus-width of NAND device is assumed to be either 8-bit and later
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determined by reading ONFI params.
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Above config is useful when NAND device's bus-width information cannot
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be determined from on-chip ONFI params, like in following scenarios:
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- SPL boot does not support reading of ONFI parameters. This is done to
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keep SPL code foot-print small.
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- In current U-Boot flow using nand_init(), driver initialization
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happens in board_nand_init() which is called before any device probe
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(nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
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not available while configuring controller. So a static CONFIG_NAND_xx
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is needed to know the device's bus-width in advance.
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if SPL
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config SPL_NAND_DENALI
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bool "Support Denali NAND controller for SPL"
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help
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This is a small implementation of the Denali NAND controller
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for use on SPL.
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config SPL_NAND_SUNXI
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bool "Support for NAND on Allwinner SoCs in SPL"
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depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I
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select SYS_NAND_SELF_INIT
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---help---
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Enable support for NAND. This option allows SPL to read from
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sunxi NAND using DMA transfers.
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config NAND_SUNXI_SPL_SYNDROME_PARTITIONS_END
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hex "Size of syndrome partitions in sunxi NAND"
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default 0x400000
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depends on SPL_NAND_SUNXI
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---help---
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End address for boot partitions on NAND. Those partitions have a
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different random seed that has to match the sunxi BROM setting.
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endif
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endmenu
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