Comment 0 for bug 1248233

There is no earlyprintk via the PL011 because there's no defined device tree binding for earlyprintk UART to get the PL011 to work you'll need to tweak the kernel a bit. kernel doesn't ever add the clock to its list, and then it refuses to probe for the PL011. This is a temporary fix, ideally the call should be done in some generic location rather than in every machine's init function.) The alternative would be for the kernel to be fixed to follow its own device tree binding documentation and not require clocks/clock-names properties on the pl011 node.