14 Dec
2012
14 Dec
'12
11:45 p.m.
On 12/14/2012 03:22 PM, Simon Glass wrote:
Hi Stephen,
...
Perhaps I can make the point another way. Assuming that the SOC in question is ARM-based and has Linux support it either supports FDT now or presumably will fairly soon.
Sure, but I'm *explicitly* avoiding relying on DT for this, because there are plenty of things that happen before DT can or should be touched that might warrant serial port output.
The kernel has exactly the same kind of feature; log messages can be sent out through an SoC-specific earlyprintk mechanism. In the U-Boot case though, I don't plan on replacing the serial port based on information from DT, but simply setting it up much much earlier via a simpler mechanism.