devolo dlan pro wireless 500 plus

The system is stored on an SPI flash which is mapped in memory and starts at 0x9f000000. Here is the partitioning:

mtdparts=ath-nor0:mtdparts=ath-nor0:256k(Bootloader),64k(BootConfig),64k(Config1),64k(Config2),1088k(Kernel),6592k(Filesystem),7680k@0x70000(Firmware1),64k@0x7f0000(ART),8192k@0x9f000000(FullFlash)

Related source code:

• The machine configuration is in include/configs/db12x.h
• The tftp update logic is in common/main.c

The device has 8 MB of flash, provided by a “SPANSION FL064PIF” (WSON-8 circuit package)

Here is the flash configuration with the “openwrt-15.05.1-ar71xx-generic-dlan-pro-500-wp-squashfs-sysupgrade.bin” image

root@OpenWrt:~# cat /proc/mtd
dev: size erasesize name
mtd0: 00040000 00010000 “u-boot”
mtd1: 00010000 00010000 “u-boot-env”
mtd2: 00010000 00010000 “Config1”
mtd3: 00010000 00010000 “Config2”
mtd4: 00780000 00010000 “firmware”
mtd5: 00120000 00010000 “kernel”
mtd6: 00660000 00010000 “rootfs”
mtd7: 004d0000 00010000 “rootfs_data”
mtd8: 00010000 00010000 “art”

Note that the RAM size is automatically detected by u-boot (by looking when the address space wraps around).