I'm trying to port sound to my ML507 by AC97 chipset. I'm googling and see some people have to adapt previous opb_ac97 core to ML507. This link is a reference to someone who successfuly did it:
The simplest idea is to use OPB Bus to manage the opb_ac97 core, some people have faced with problems using the ac97_test.c file. The point is that I need the PLB to OPB bridge in order to use the opb_ac97 core, and just then face with the file.c.
I use EDK 11.3 and I've seen there's not such core available, even with the "deprecated core" activated. I see some guys use the plb to opb core, I'm wondering if I can use it with EDK 11.3.
Otherwise I shoud use PLB4.6 to OPB bridge but I do not know if the system works fine, I just try to follow exactly what the link friend said about it, he used the opb_ac97 core, and added a PLB to OPB bride....(where did he find such core...???)
thanks to all