AVM Fritz!Box 7390 (HW-Revision: 156):
- SOC: Fusiv Vx180
- MIPS32 24KEc
- 500 MHz (single core)
- Flash:
- SPI-NOR: 16 MB
- NAND: 512 MB
- RAM: 128 MB
- VDSL Modem: Ikanos IFE-6
- Switch: AR8316
- DECT: SC14488
- WLAN: AR9220/ AR9223
(both should be simple PCIe devices, so no separate SOC for them)
SOC and xDSL Modem are unsupported (upstream and OpenWrt), everything else would be possible (with the usual caveat that Linux doesn't have any DECT subsystem).