Convert CONFIG_NAND_OMAP_GPMC et al and CONFIG_NAND_MXC to Kconfig

[u-boot] / drivers / mtd / nand / Kconfig

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 85b26d608851591cca14dd36e1229db845215918..794410a152fe371f3c7f6537567e9e18019a457f 100644 (file)
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -43,6 +43,34 @@ 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
+       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
@@ -112,6 +140,14 @@ config NAND_ARASAN
          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
@@ -134,7 +170,7 @@ comment "Generic NAND options"
 # 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
@@ -175,12 +211,29 @@ 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
 
 endif   # if NAND