{
    "mmc": { // Device, The name should be the same with string in image:info:media:type
        "size": "8G", // Size of SD/eMMC
        "partitions": { // Partition table apply to device
            "spl": { "offset": "0x4400", "size": "256k" },
            "os":  { "size": "8m" },
            "rodata":  { "size": "12m" },
            "data":  { "size": "35m" },
        },
    },
    "image": {
        "info": { // Header information about image
            "platform": "d21x",
            "product": "demo88_mmc",
            "version": "1.0.0",
            "media": {
                "type": "mmc",
                "device_id": 0,
            }
        },
        "updater": { // Image writer which is downloaded to RAM by USB
            "ddr": {
                "file": "usbupg-ddr-init.aic",
                "attr": ["required", "run"],
                "ram": "0x00103000"
            },
            "spl": {
                "file": "bootloader.aic",
                "attr": ["required", "run"],
                "ram": "0x41000000"
            },
        },
        "target": { // Image components which will be burn to device's partitions
            "spl": {
                "file": "bootloader.aic",
                "attr": ["required"],
                "part": ["spl"]
            },
            "os": {
                "file": "d21x_os.itb",
                "attr": ["block", "required"],
                "part": ["os"]
            },
            //"res": {
            //    "file": "app.fatfs",
            //    "attr": ["block", "optional"],
            //    "part": ["rodata"]
            //},
            //"app": {
            //    "file": "user.ext4",
            //    "attr": ["block", "optional"],
            //    "part": ["data"]
            //},
        },
    },
    "temporary": { // Pre-proccess to generate image components from raw data
        "aicboot": {
            "usbupg-ddr-init.aic": { // No loader, only PreBootProgram to initialize DDR
                "head_ver": "0x00010001",
                "resource": {
                    "private": "ddr_init.bin",
                    "pbp": "d21x.pbp",
                },
            },
            "bootloader.aic": {
                "head_ver": "0x00010001",
                "loader": {
                    "file": "bootloader.bin",
                    "load address": "0x42000000",
                     "entry point":  "0x42000100",
                },
                "resource": {
                    "private": "ddr_init.bin",
                    "pbp": "d21x.pbp",
                },
            },
        },
        "itb": {
            "d21x_os.itb": {
                "its": "d21x_os.its"
            },
        },
    },
}