This patch converts magic and version fields of ghf common header
to one field with the type of uint32_t to make this header flexible
for futher updates.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

The predefined NAND headers take too much spaces in the mtk_image.c.
Moving them into a new file can significantly improve the readability of
both mtk_image.c and the new mtk_nand_headers.c.

This is a preparation for adding more NAND headers.

Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

The BootROM of MT7621 requires a image header for SPL to record its size
and load address when booting from NAND.

To create such an image, one can use the following command line:
mkimage -T mtk_image -a 0x80200000 -e 0x80200000 -n "mt7621=1"
-d u-boot-spl-ddr.bin u-boot-spl-ddr.img

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

mkimage is only able to package aarch32 binaries. Add support for
AArch64 images.

One can create a ARM64 image using the following command line:
mkimage -T mtk_image -a 0x201000 -e 0x201000 -n "media=emmc;arm64=1"
-d bl2.bin bl2.img

Signed-off-by: Fabien Parent <fparent@baylibre.com>

__leXX has Linux kernel specific __attribute__((bitwise)) which is
not portable. Use corresponding uintXX_t instead.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>

This patch adds support for MTK boot image generation.

Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Reviewed-by: Simon Glass <sjg@chromium.org>