mahjongg wrote:Its my understanding that the LAN9514 chip is "woken up" by the kernel after boot
so a network boot could never work??
the "brick" searches all interfaces for bootcode.bin / SD card OR USB stick OR Network chip/
but as i say, pls. test with a new RPI if its ethernet port is blinking, as mine is OTP USB boot enabled.
That's a good point! It must be that the OTP USB Boot code also turns on the LAN9514, it should as its the only way to get an Ethernet connection working. I'm amazed they can do all this with just the few KB of bootcode available.
It still doesn't mean it can turn on video, or do anything except loading actual second-level boot-code, it won't "boot" unless it can load that code from somewhere. But yes, it does a hell of a lot more with its 2K or so built in ROM code than the original PI could.