| |
| 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 |
| select SYS_NAND_SELF_INIT |
| imply CMD_NAND |
| |
| config NAND_DENALI_DT |
| bool "Support Denali NAND controller as a DT device" |
| select NAND_DENALI |
| depends on OF_CONTROL && DM |
| help |
| Enable the driver for NAND flash on platforms using a Denali NAND |
| controller as a DT device. |
| |
| 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" |
| default ARCH_SUNXI |
| depends on MACH_SUN4I || MACH_SUN5I || MACH_SUN7I || MACH_SUN8I |
| select SYS_NAND_SELF_INIT |
| select SYS_NAND_U_BOOT_LOCATIONS |
| select SPL_NAND_SUPPORT |
| 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" |
| select SYS_NAND_SELF_INIT |
| 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 MX23 || MX28 || MX6 || MX7 |
| select SYS_NAND_SELF_INIT |
| imply CMD_NAND |
| select APBH_DMA |
| select APBH_DMA_BURST if ARCH_MX6 || ARCH_MX7 |
| select APBH_DMA_BURST8 if ARCH_MX6 || ARCH_MX7 |
| help |
| This enables NAND driver for the NAND flash controller on the |
| MXS processors. |
| |
| if NAND_MXS |
| |
| config NAND_MXS_DT |
| bool "Support MXS NAND controller as a DT device" |
| depends on OF_CONTROL && MTD |
| help |
| Enable the driver for MXS NAND flash on platforms using |
| device tree. |
| |
| config NAND_MXS_USE_MINIMUM_ECC |
| bool "Use minimum ECC strength supported by the controller" |
| default false |
| |
| endif |
| |
| 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. |
| |
| config NAND_ZYNQ_USE_BOOTLOADER1_TIMINGS |
| bool "Enable use of 1st stage bootloader timing for NAND" |
| depends on NAND_ZYNQ |
| help |
| This flag prevent U-boot reconfigure NAND flash controller and reuse |
| the NAND timing from 1st stage bootloader. |
| |
| comment "Generic NAND options" |
| |
| config SYS_NAND_BLOCK_SIZE |
| hex "NAND chip eraseblock size" |
| depends on ARCH_SUNXI |
| help |
| Number of data bytes in one eraseblock for the NAND chip on the |
| board. This is the multiple of NAND_PAGE_SIZE and the number of |
| pages. |
| |
| config SYS_NAND_PAGE_SIZE |
| hex "NAND chip page size" |
| depends on ARCH_SUNXI |
| help |
| Number of data bytes in one page for the NAND chip on the |
| board, not including the OOB area. |
| |
| config SYS_NAND_OOBSIZE |
| hex "NAND chip OOB size" |
| depends on ARCH_SUNXI |
| help |
| Number of bytes in the Out-Of-Band area for the NAND chip on |
| the board. |
| |
| # 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 |