My point is that if I needed to build and sell 200,000 of something over 10 years, I can't order that many from the Raspberry Pi foundation and trust the piece will still be around the entire time. And if I wanted 200,000 of the Broadcom parts, they wouldn't sell it to me in that small of a quantity.
The OSD3358 is definitely the right approach, since putting high-speed impedance/timing matched DDR lines on a board to make it work right with a modern 1GHz+ CPU is a much higher level of difficulty. Plus you will also need to make your PCB 8 or 10 layers to shield the interference which increases the cost.
I thought package-on-package (like the AM335x's predecessor, the OMAP) was the way to go, but I'm starting to like the monolithic package better.
The OSD3358 is definitely the right approach, since putting high-speed impedance/timing matched DDR lines on a board to make it work right with a modern 1GHz+ CPU is a much higher level of difficulty. Plus you will also need to make your PCB 8 or 10 layers to shield the interference which increases the cost.
I thought package-on-package (like the AM335x's predecessor, the OMAP) was the way to go, but I'm starting to like the monolithic package better.