uboot/configs/at91sam9g10ek_nandflash_defconfig
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   1CONFIG_ARM=y
   2CONFIG_ARCH_AT91=y
   3CONFIG_SYS_TEXT_BASE=0x21f00000
   4CONFIG_TARGET_AT91SAM9261EK=y
   5CONFIG_SYS_MALLOC_F_LEN=0x2000
   6CONFIG_NR_DRAM_BANKS=1
   7CONFIG_DM_GPIO=y
   8CONFIG_DEFAULT_DEVICE_TREE="at91sam9261ek"
   9CONFIG_DEBUG_UART_BOARD_INIT=y
  10CONFIG_DEBUG_UART_BASE=0xfffff200
  11CONFIG_DEBUG_UART_CLOCK=100000000
  12CONFIG_ENV_OFFSET_REDUND=0x100000
  13CONFIG_DEBUG_UART=y
  14CONFIG_SYS_EXTRA_OPTIONS="AT91SAM9G10,SYS_USE_NANDFLASH"
  15CONFIG_BOOTDELAY=3
  16CONFIG_USE_BOOTARGS=y
  17CONFIG_BOOTARGS="console=ttyS0,115200 earlyprintk mtdparts=atmel_nand:256k(bootstrap)ro,512k(uboot)ro,256k(env),256k(env_redundant),256k(spare),512k(dtb),6M(kernel)ro,-(rootfs) root=/dev/mtdblock7 rw rootfstype=jffs2"
  18CONFIG_SYS_CONSOLE_IS_IN_ENV=y
  19# CONFIG_DISPLAY_BOARDINFO is not set
  20CONFIG_SYS_PROMPT="U-Boot> "
  21# CONFIG_CMD_BDI is not set
  22# CONFIG_CMD_IMI is not set
  23# CONFIG_CMD_LOADS is not set
  24CONFIG_CMD_NAND=y
  25# CONFIG_CMD_SOURCE is not set
  26# CONFIG_CMD_SETEXPR is not set
  27CONFIG_CMD_DHCP=y
  28CONFIG_CMD_PING=y
  29CONFIG_CMD_FAT=y
  30CONFIG_OF_CONTROL=y
  31CONFIG_ENV_IS_IN_NAND=y
  32CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
  33CONFIG_SYS_RELOC_GD_ENV_ADDR=y
  34CONFIG_DM=y
  35CONFIG_CLK=y
  36CONFIG_CLK_AT91=y
  37CONFIG_AT91_GPIO=y
  38# CONFIG_MMC is not set
  39CONFIG_MTD=y
  40CONFIG_MTD_RAW_NAND=y
  41CONFIG_NAND_ATMEL=y
  42CONFIG_DM_SPI_FLASH=y
  43CONFIG_SPI_FLASH_ATMEL=y
  44CONFIG_SPI_FLASH_DATAFLASH=y
  45CONFIG_PINCTRL=y
  46CONFIG_PINCTRL_AT91=y
  47CONFIG_DM_SERIAL=y
  48CONFIG_DEBUG_UART_ANNOUNCE=y
  49CONFIG_ATMEL_USART=y
  50CONFIG_SPI=y
  51CONFIG_DM_SPI=y
  52CONFIG_USB=y
  53