Dear Rob Sciuk, > On Mon, 4 Mar 2013, Marek Vasut wrote: > > True, the OF is getting a lot of traction. Btw. setting up the mac > > address in u- boot is possible too by setting 'ethaddr' variable in the > > command line. It's even propagated into the DT node as local-mac-address > > iirc. I recall the FECes do not have mac address written in them indeed. > > I'm aware of the ethaddr mechanism, but the complication was that the mac > address is a function of the ATCA chassis address, and slot number, and > this must be determined at boot time by means of an onboard ATCA/BMC > controller requesting the address information over an I2C bus from the > shelf manager. > > In order to communicate with the BMC, I had to fake a second serial port > in u-boot, by having the console switch back and forth between the real > console and the uart controlling the BMC controller. Also, there are 6 > MAC id's to configure, in accordance with a strict requirement. The > serial communication protocol used the IPMI/PICMG3 encoding, and quite > frankly was a bigger pain than the boot protocol ... but I must say that I > learned a lot in the process ... both about U-Boot, the PPC architecture > and ATCA.
That's good :) Best regards, Marek Vasut
