Written 2016-04-06

Tags:UART U-Boot Google 

Hook up 3.3v UART to headers near center of PCB. Headers are one by six. Pin closest to heatsink should be ground, then PCB TX, then PCB RX.

Set UART to 115200 Baud, 8N1. Receive:
BootROM 1.34
Booting from NAND flash
BootROM: Image checksum verification PASSED

U-Boot 2009.08 (Jun 04 2013 - 11:01:29) Marvell version: 3.2.0_NQ Actiontec version: 1.3.12

Board: MI424WR-K2
SoC: 88F6560 A0
CPU: Marvell Feroceon (Rev 1) - LE
CPU @ 1600Mhz, L2 @ 533Mhz
DDR3 @ 533Mhz, TClock @ 200Mhz
PEX 0: Root Complex Interface, Detected Link X1
PEX 1: Root Complex Interface, Detected Link X1
DRAM: 256 MB
CS 0: base 0x00000000 size 256 MB
Addresses 28M - 0M are saved for the U-Boot usage.
NAND: 1bit HM ECC, Size: 128 MiB
*** Warning - bad CRC or NAND, using default environment

USB 0: Host Mode
Shutting down unused interfaces:
Modules Detected:
GPON module detected.
Ethernet Switch on MAC0.
QSGMII Module.
Net: egiga0 [PRIME], egiga1
Hit any key to stop autoboot: 0