1. Kernel configuration files
   arch/arm/configs:
   Nokia 1 (TA-1047/TA-1060/TA-1056/TA-1079/TA-1066): FRT_defconfig

2. How to build

  Prerequisites:

    * ramdisk.img - root fs

    * mkbootimg - boot.img generator

    * The ARM cross-compiler
      We recommend getting the CodeSourcery Lite compiler.
      Or, you can also use prebuild executable binary which is included in
      standard Android tree.

  Step 1: Build Kernel (zImage)
    $ cd kernel-3.18

    $ export ARCH=arm

    $ export CROSS_COMPILE=<cross compile path with prefix>
      NOTE: Please set the location and the prefix of the ARM cross-compiler.
	        Please use the absolute path for this.
	  ex) <cross compiler path>/prebuilts/gcc/linux-x86/arm/arm-eabi-6.3.1/bin/arm-eabi-

    $ make FRT_defconfig O=<output path>
      NOTE: Please set a configuration file you want to build.

    $ make O=<output path>

    You can see arch/arm/boot/zImage-dtb if you succeed in building the kernel.

  Step 2: Assembling the boot.img
    (In the output directory)
	$ mkbootimg --kernel arch/arm/boot/zImage-dtb --cmdline "bootopt=64S3,32N2,32N2 buildvariant=userdebug" \
	  --base 0x40000000 --kernel_offset 0x00008000 --ramdisk_offset 0x04000000 --tags_offset 0xE000000 \
	  --ramdisk ramdisk.img --output boot.img