Hmm, you mean documentation from ARM or from Broadcom? There seems to be a ton of stuff at http://infocenter.arm.com but the URL's funky or blocked by my ISP. I can go there in Lynx from my devio.us account but I'm a little out of practice with Lynx. I was seeing tables of contents in documents, but I wanted a PDF or ten. Try http://infocenter.arm.com/help/topic/com.arm.doc.set.cortexa/index.html as an example.
The Cortex family of processors made Wikipedia: https://en.wikipedia.org/wiki/ARM_Cortex-A who says the amount of documentation is daunting. The Pi's probably unique in being manufactured by essentially a non-profit organization. https://www.raspberrypi.org/about/ The forums at https://www.raspberrypi.org/forums/ seem pretty good. I don't know if they have any non-disclosure agreements with Broadcom or not. The foundation seems mostly academically oriented, I would think they'd cooperate with any open source organization. -- Credit is the root of all evil. - AB1JX
