Convert CONFIG_NAND_DAVINCI to Kconfig

This converts the following to Kconfig:
   CONFIG_NAND_DAVINCI

Signed-off-by: Adam Ford <aford173@gmail.com>
diff --git a/configs/ea20_defconfig b/configs/ea20_defconfig
index 497e551..43292a1 100644
--- a/configs/ea20_defconfig
+++ b/configs/ea20_defconfig
@@ -30,6 +30,8 @@
 CONFIG_CMD_UBI=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_SYS_NS16550=y
diff --git a/configs/ipam390_defconfig b/configs/ipam390_defconfig
index 15c4944..d1a6e54 100644
--- a/configs/ipam390_defconfig
+++ b/configs/ipam390_defconfig
@@ -34,4 +34,6 @@
 CONFIG_CMD_UBI=y
 CONFIG_ENV_IS_IN_NAND=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_SYS_NS16550=y
diff --git a/configs/k2e_evm_defconfig b/configs/k2e_evm_defconfig
index 3307839..c5bb84a 100644
--- a/configs/k2e_evm_defconfig
+++ b/configs/k2e_evm_defconfig
@@ -36,6 +36,8 @@
 CONFIG_DM=y
 CONFIG_TI_AEMIF=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/k2e_hs_evm_defconfig b/configs/k2e_hs_evm_defconfig
index ef6abc8..a86eeb8 100644
--- a/configs/k2e_hs_evm_defconfig
+++ b/configs/k2e_hs_evm_defconfig
@@ -29,6 +29,8 @@
 CONFIG_DM=y
 CONFIG_TI_AEMIF=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/k2g_evm_defconfig b/configs/k2g_evm_defconfig
index ede8f6a..911618c 100644
--- a/configs/k2g_evm_defconfig
+++ b/configs/k2g_evm_defconfig
@@ -36,6 +36,8 @@
 # CONFIG_BLK is not set
 CONFIG_DM_MMC=y
 CONFIG_MMC_OMAP_HS=y
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
diff --git a/configs/k2g_hs_evm_defconfig b/configs/k2g_hs_evm_defconfig
index 04f4b02..174af79 100644
--- a/configs/k2g_hs_evm_defconfig
+++ b/configs/k2g_hs_evm_defconfig
@@ -29,6 +29,8 @@
 # CONFIG_BLK is not set
 CONFIG_DM_MMC=y
 CONFIG_MMC_OMAP_HS=y
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
diff --git a/configs/k2hk_evm_defconfig b/configs/k2hk_evm_defconfig
index fa800f5..942e44e 100644
--- a/configs/k2hk_evm_defconfig
+++ b/configs/k2hk_evm_defconfig
@@ -36,6 +36,8 @@
 CONFIG_DM=y
 CONFIG_TI_AEMIF=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/k2hk_hs_evm_defconfig b/configs/k2hk_hs_evm_defconfig
index 2cf5c4f..12be37f 100644
--- a/configs/k2hk_hs_evm_defconfig
+++ b/configs/k2hk_hs_evm_defconfig
@@ -29,6 +29,8 @@
 CONFIG_DM=y
 CONFIG_TI_AEMIF=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/k2l_evm_defconfig b/configs/k2l_evm_defconfig
index 1034d36..5381e9f 100644
--- a/configs/k2l_evm_defconfig
+++ b/configs/k2l_evm_defconfig
@@ -36,6 +36,8 @@
 CONFIG_DM=y
 CONFIG_TI_AEMIF=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/k2l_hs_evm_defconfig b/configs/k2l_hs_evm_defconfig
index d369d32..0381a724 100644
--- a/configs/k2l_hs_evm_defconfig
+++ b/configs/k2l_hs_evm_defconfig
@@ -28,6 +28,8 @@
 CONFIG_DM=y
 CONFIG_TI_AEMIF=y
 # CONFIG_MMC is not set
+CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_DM_SPI_FLASH=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_STMICRO=y
diff --git a/configs/omapl138_lcdk_defconfig b/configs/omapl138_lcdk_defconfig
index cabea06..4a97269 100644
--- a/configs/omapl138_lcdk_defconfig
+++ b/configs/omapl138_lcdk_defconfig
@@ -35,6 +35,7 @@
 CONFIG_DM_I2C=y
 CONFIG_DM_I2C_COMPAT=y
 CONFIG_NAND=y
+CONFIG_NAND_DAVINCI=y
 CONFIG_SYS_NAND_BUSWIDTH_16BIT=y
 CONFIG_SYS_NAND_U_BOOT_LOCATIONS=y
 CONFIG_SYS_NAND_U_BOOT_OFFS=0x28000
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 8175fbb..1e4ea7b 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -16,6 +16,12 @@
 	  Enable this driver for NAND flash platforms using an Atmel NAND
 	  controller.
 
+config NAND_DAVINCI
+	bool "Support TI Davinci NAND controller"
+	help
+	  Enable this driver for NAND flash controllers available in TI Davinci
+	  and Keystone2 platforms
+
 config NAND_DENALI
 	bool
 	select SYS_NAND_SELF_INIT
diff --git a/include/configs/da850evm.h b/include/configs/da850evm.h
index ebfdd1c..006cd03 100644
--- a/include/configs/da850evm.h
+++ b/include/configs/da850evm.h
@@ -149,7 +149,6 @@
  * Flash & Environment
  */
 #ifdef CONFIG_USE_NAND
-#define CONFIG_NAND_DAVINCI
 #define CONFIG_ENV_OFFSET		0x0 /* Block 0--not used by bootcode */
 #define CONFIG_ENV_SIZE			(128 << 10)
 #define	CONFIG_SYS_NAND_USE_FLASH_BBT
diff --git a/include/configs/ea20.h b/include/configs/ea20.h
index ee122ad..2112431 100644
--- a/include/configs/ea20.h
+++ b/include/configs/ea20.h
@@ -116,7 +116,6 @@
 #define CONFIG_MTD_DEVICE
 #define CONFIG_MTD_PARTITIONS
 
-#define CONFIG_NAND_DAVINCI
 #define	CONFIG_SYS_NAND_PAGE_2K
 #define CONFIG_SYS_NAND_NO_SUBPAGE
 #define CONFIG_SYS_NAND_CS		2
diff --git a/include/configs/ipam390.h b/include/configs/ipam390.h
index 08978fa..c5171e0 100644
--- a/include/configs/ipam390.h
+++ b/include/configs/ipam390.h
@@ -117,7 +117,6 @@
 /*
  * Flash & Environment
  */
-#define CONFIG_NAND_DAVINCI
 #define CONFIG_ENV_OFFSET		0x0 /* Block 0--not used by bootcode */
 #define CONFIG_ENV_SIZE			(128 << 10)
 #define	CONFIG_SYS_NAND_USE_FLASH_BBT
diff --git a/include/configs/omapl138_lcdk.h b/include/configs/omapl138_lcdk.h
index 879c8a0..f34e35e 100644
--- a/include/configs/omapl138_lcdk.h
+++ b/include/configs/omapl138_lcdk.h
@@ -143,7 +143,6 @@
  * Flash & Environment
  */
 #ifdef CONFIG_USE_NAND
-#define CONFIG_NAND_DAVINCI
 #define CONFIG_ENV_OFFSET		0x0 /* Block 0--not used by bootcode */
 #define CONFIG_ENV_SIZE			(128 << 9)
 #define	CONFIG_SYS_NAND_USE_FLASH_BBT
diff --git a/include/configs/ti_armv7_keystone2.h b/include/configs/ti_armv7_keystone2.h
index ccd4665..18a03b3 100644
--- a/include/configs/ti_armv7_keystone2.h
+++ b/include/configs/ti_armv7_keystone2.h
@@ -159,7 +159,6 @@
 #define CONFIG_ENV_EEPROM_IS_ON_I2C
 
 /* NAND Configuration */
-#define CONFIG_NAND_DAVINCI
 #define CONFIG_KEYSTONE_RBL_NAND
 #define CONFIG_KEYSTONE_NAND_MAX_RBL_SIZE	CONFIG_ENV_OFFSET
 #define CONFIG_SYS_NAND_MASK_CLE		0x4000
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index e92f97e..d6d4fb9 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -1369,7 +1369,6 @@
 CONFIG_NAND_ACTL
 CONFIG_NAND_CS_INIT
 CONFIG_NAND_DATA_REG
-CONFIG_NAND_DAVINCI
 CONFIG_NAND_ECC_BCH
 CONFIG_NAND_ENV_DST
 CONFIG_NAND_FSL_ELBC