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Linux/66AK2E05: K2E Device Kernel boot by USB

Part Number: 66AK2E05

Tool/software: Linux

Hello, 

We have a custom board based on K2E Processor. 

We have done the first stage booting through SPI NOR Flash. At uboot, we are trying to load the kernel through USB (Pen-drive) but the kernel is showing "can not find a root=boot option". We have few questions about the same - 

1) is it possible to load kernel through USB interface for K2E devices? 

2) If "yes" than what are the parameters we need to set in uBoot? 

Many Thanks 

Pooja Gaur