Sagemcom F@ST 4320US

Overview
This device is presumably fully Broadcom based.

Serial
# cat /proc/cpuinfo system type            : F@ST4320 processor              : 0 cpu model              : Broadcom4350 V8.0 BogoMIPS               : 399.36 wait instruction       : yes microsecond timers     : yes tlb_entries            : 32 extra interrupt vector : no    hardware watchpoint     : no    ASEs implemented        : shadow register sets   : 1 core                   : 0 VCED exceptions        : not available VCEI exceptions        : not available unaligned exceptions           : 13
 * cpu info

processor              : 1 cpu model              : Broadcom4350 V8.0 BogoMIPS               : 402.43 wait instruction       : yes microsecond timers     : yes tlb_entries            : 32 extra interrupt vector : no    hardware watchpoint     : no    ASEs implemented        : shadow register sets   : 1 core                   : 0 VCED exceptions        : not available VCEI exceptions        : not available unaligned exceptions           : 13

Block Devices (/dev/mtdblock#) # cat /proc/mtd dev:   size   erasesize  name mtd0: 03d60000 00020000 "rootfs" mtd1: 03d60000 00020000 "rootfs_update" mtd2: 00400000 00020000 "data" mtd3: 00020000 00020000 "nvram"

cmdline # cat /proc/cmdline root=mtd:rootfs ro rootfstype=jffs2 console=ttyS0,115200
 * Block Image Data (from XXD and Binwalk)
 * /dev/mtdblock0 is a JFFS2 filesystem with the byte order big endian.
 * It is 64,356,352 bytes big. The JFFS2 filesystem starts at 0 bytes.


 * /dev/mtdblock1 is an image that is all decimal 255 (hex FF). It is 64,356,352 bytes big.
 * /dev/mtdblock2 is an image that is mostly decimal 255 (hex FF), but contains
 * (JFFS2, big endian) data between 00160000 and 0031fff0. It is 4,194,304 bytes big.
 * The filesystem starts at decimal 1441792.


 * /dev/mtdblock3 mostly contains null bytes, but appears to contain cferam.000 between
 * 00000000 and 00003bd0. It is 131,072 bytes big. Binwalk was not able to identify any data.