I am trying to understand the flash layout but from my info i got from binwalk and what is on the wiki makes no sense to me. I am trying to backup my radio info using dd.
From binwalk:
DECIMAL HEXADECIMAL DESCRIPTION
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18336 0x47A0 CRC32 polynomial table, little endian
20480 0x5000 uImage header, header size: 64 bytes, header CRC: 0x31AA7B51, created: 2014-06-12 02:34:56, image size: 37248 bytes, Data Address: 0xA0400000, Entry Point: 0xA0400000, data CRC: 0x5EEB5C72, OS: Linux, CPU: MIPS, image type: Firmware Image, compression type: lzma, image name: "u-boot image"
20544 0x5040 LZMA compressed data, properties: 0x5D, dictionary size: 8388608 bytes, uncompressed size: 99664 bytes
65536 0x10000 uImage header, header size: 64 bytes, header CRC: 0xE1770FA5, created: 2013-08-26 09:40:16, image size: 26795 bytes, Data Address: 0x0, Entry Point: 0x0, data CRC: 0xF2C5EDB5, OS: Linux, CPU: MIPS, image type: Multi-File Image, compression type: lzma, image name: "GPHY Firmware"
65608 0x10048 LZMA compressed data, properties: 0x5D, dictionary size: 8388608 bytes, uncompressed size: 65600 bytes
131584 0x20200 LZMA compressed data, properties: 0x5D, dictionary size: 8388608 bytes, uncompressed size: 3951012 bytes
1441792 0x160000 Squashfs filesystem, little endian, version 4.0, compression:lzma, size: 6061824 bytes, 544 inodes, blocksize: 131072 bytes, created: 2014-06-13 00:37:57
8126476 0x7C000C XML document, version: "1.0"
From the wiki
partition address space name filesystem function
mtd0 0x00000000-0x00020000 boot n/a U-Boot v2.0.40
mtd1 0x00020000-0x00160000 kernel RAM executable kernel 2.6.32
mtd2 0x00160000-0x007c0000 rootfs squashfs root
mtd3 0x007c0000-0x007d0000 config XML string user configuration
mtd4 0x007d0000-0x007e0000 romfile n/a ???
mtd5 0x007e0000-0x007f0000 rom n/a ???
mtd6 0x007f0000-0x00800000 radio n/a radio settings