Merge tag 'xilinx-for-v2018.03' of git://git.denx.de/u-boot-microblaze

[oweals/u-boot.git] / drivers / mtd / nand / Kconfig

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 3508c622e3e595fbd6208d368374ee7017328400..97ec6cf5f9c34ff0a73dffe84bb350ee26d000dc 100644 (file)
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -1,4 +1,7 @@
-menu "NAND Device Support"
+
+menuconfig NAND
+       bool "NAND Device Support"
+if NAND
 
 config SYS_NAND_SELF_INIT
        bool
@@ -7,22 +10,17 @@ config SYS_NAND_SELF_INIT
          NAND initialization process.
 
 config NAND_DENALI
-       bool "Support Denali NAND controller"
+       bool
        select SYS_NAND_SELF_INIT
        imply CMD_NAND
-       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
+config NAND_DENALI_DT
+       bool "Support Denali NAND controller as a DT device"
+       select NAND_DENALI
+       depends on OF_CONTROL && DM
        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.
+         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"
@@ -33,6 +31,35 @@ config NAND_DENALI_SPARE_AREA_SKIP_BYTES
          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
@@ -96,12 +123,21 @@ 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 MX6 || MX7
@@ -118,13 +154,20 @@ config NAND_ZYNQ
          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"
 
 # 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
+       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
@@ -165,12 +208,29 @@ config SYS_NAND_U_BOOT_OFFS_REDUND
        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
 
-endmenu
+endif   # if NAND